An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
agricultural land; altitude; basins; ecosystems; forests; grasslands; human settlements; humans; industrialization; land classification; land use; landscapes; livelihood; mountains; pollution; rural areas; transportation; urbanization; China
Abstract:
... A combination of rapid industrialization, economic development and urbanization has caused a series of issues such as resource shortages, ecosystem destruction, environmental pollution and tension between human needs and land conservation. In order to promote balanced development of human, resources, ecosystems, the environment, and the economy and society, it is vital to conceptualize ecological ...
... The present study aims to increase the efficiency of a resource from waste to health by valorisation of it through cleaner, eco-friendly and less energy-consuming technical processes such as microwave-asissted (MAE) and supercritical fluid (SFE) extractions. On the other hand, optimization of the processes have been applied utilizing multivariate statistic technique such as Response surface Method ...
Eimear Dolan; Paul A Swinton; Vitor de Salles Painelli; Benedict Stephens Hemingway; Bruna Mazzolani; Fabiana Infante Smaira; Bryan Saunders; Guilherme G Artioli; Bruno Gualano
... β-Alanine supplementation is one of the world's most commonly used sports supplements, and its use as a nutritional strategy in other populations is ever-increasing, due to evidence of pleiotropic ergogenic and therapeutic benefits. Despite its widespread use, there is only limited understanding of potential adverse effects. To address this, a systematic risk assessment and meta-analysis was under ...
Lepus americanus; Mustela; Mustela nivalis; color; field methods; interspecific variation; mimicry (behavior); models; molting; phenology; seasonal variation; snow; snowpack; sympatry; winter; West Virginia
Abstract:
... Across the globe, more than 21 species undergo seasonal changes in coloration, molting white in winter to become camouflaged against snow. Given the adaptive value of seasonal camouflage against local snow duration, one might predict that sympatric coat color changing species would have similar winter coat color. This hypothesis, however, contrasts with anecdotal evidence and modeling results that ...
... B. longum has been reported to exert an alleviative effect on colitis, but the results also suggested significant differences among strains. Here in this study, we compared the effect of B. longum subsp. longum strains with different properties in EPS production on DSS-induced colitis. To investigate the alleviative effect of a ropy-exopolysaccharide (EPS) producing strain, Bifidobacterium longum ...
... Drosophila suzukii is an invasive pest and economic threat to berry crops in Europe and the Americas. Current methods of control of this pest rely primarily on frequent applications of insecticides; therefore, there is a need for alternative control methods to reduce insecticide reliance. In this study, we evaluated the biological control potential of three parasitoid wasps: Diglyphus isaea, Musci ...
... Acylated anthocyanins are more stable than monomeric anthocyanins, but little is known about their physiological effects. We evaluated the hemodynamic effects of single intragastric doses of purple carrot (Daucus carota L.) anthocyanin (PCA) and two monomeric anthocyanins, cyanidin 3-O-glycoside (C3G) and delphinidin 3-O-ruthenoside (D3R). PCA, C3G, or D3R was administered orally to rat and blood ...
... Research highlights: The admixture of fir to pure European beech hardly affected soil-atmosphere CH4 and N2O fluxes but increased soil organic carbon (SOC) stocks at a site in the Black Forest, Southern Germany. Background and objectives: Admixing deep-rooting silver fir has been proposed as a measure to increase the resilience of beech forests towards intensified drying-wett ...
bioethanol; biomass; energy; enzymes; ethanol production; feedstocks; fermentation; fossil fuels; lignocellulose; molasses; saccharification; solar energy; starch; sugarcane; wind power
Abstract:
... For the last few decades, fossil fuels have played a dominant role as an important energy resource in the enormous worldwide energy demand. However, as conventional fossil fuel resources are limited, excessive exploitation of such fossil fuel comes with the major global problem of energy resource scarcity. Thus, renewable sources of energy, such as solar, wind, and biofuel, have gained huge attent ...
biodegradability; biodiesel; catalysts; catalytic activity; commercialization; data collection; ethanol; foods; fuel production; mass transfer; methanol; nanoparticles; petroleum; pollution; prices; raw materials; temperature; transesterification; vegetable oil; wastes
Abstract:
... Compared to petroleum diesel, biodiesel is biodegradable and non-toxic. The use of edible vegetable oils for biodiesel production competes with the need for foodstuff. The continuously rising price of edible vegetable oils makes them uneconomical as a long-term biodiesel source. Waste vegetable oils are considered environmental pollution, despite being a potential raw material for biodiesel produc ...
business enterprises; case studies; lakes; local government; models; quantitative analysis; sustainable development; symbiosis; tourism; tourists; China
Abstract:
... Tourism symbiosis is a social phenomenon consisting of many complex factors, and the reciprocal cooperation among multiple tourist agents at tourist destinations is the crux of the sustainable development of tourism. This study is from the perspective of tourist enterprises, and introduces the Symbiosis Theory of genecology. A quantitative evaluation is used to analyze both the equilibrium state o ...
... The influence of main nutrient stress conditions KNO₃, MgSO₄, K₂HPO₄ and KCl on biofuel production from biomass by two Botryococcus braunii strains has been investigated. Low concentrations of KNO₃ and MgSO₄ exhibited positive effect on hydrocarbon, oil contents and their relative ratios without much affecting the growth. Most of the saturated hydrocarbons were identified in the range of C₁₅ to C₄ ...
... A transesterification reaction was carried out employing an oil of paradise kernel (Simarouba glauca), a non-edible source for producing Simarouba glauca methyl ester (SGME) or biodiesel. In this study, the effects of three variables – reaction temperature, oil-to-alcohol ratio and reaction time – were studied and optimized using response surface methodology (RSM) and an artificial neural network ...
João B.V. Campos; Marcos R. André; Luiz R. Gonçalves; Carla R. Freschi; Filipe M. Santos; Carina E. de Oliveira; Eliane M. Piranda; Gisele B. de Andrade; Gabriel C. Macedo; Rosangela Z. Machado; Heitor M. Herrera
... Brazilian Pantanal is the world´s largest wetland ecosystem, where cattle’s ranching is the most important economic activity. The objective of this study was to compile some epidemiological features on equine piroplasmids from the Nhecolândia sub-region of Pantanal wetland through the evaluation of the patterns of T. equi and B. caballi infections in different groups of horses; identification of t ...
biomedical research; bone health; bone strength; data collection; diet; epidemiology; experimental design; expert opinion; experts; guidelines; health effects assessments; leadership; nutrition risk assessment; observational studies; osteoporosis; physical activity; public health; randomized clinical trials
Abstract:
... Diet is a modifiable factor that can affect bone strength and integrity, and the risk of fractures. Currently, a hierarchy of scientific evidence contributes to our understanding of the role of diet on bone health and fracture risk. The strength of evidence is generally based on the type of study conducted, the quality of the methodology employed, the rigor and integrity of the data collected and ...
... Medium‐ and large‐sized vertebrates play a key role in shaping overall forest functioning. Despite this, vertebrate interactions, from competition to mutualism, remain poorly studied, even though these interactions should be taken into account in our conservation and management strategies. Thus, we tackled the question of vertebrate co‐occurrence in tropical rainforests: Are (negative or positive) ...
... Calcium is the fifth most abundant element in the body with >99% residing in the skeleton as hydroxyapatite, a complex calcium phosphate molecule. This mineral supplies the strength to bones that support locomotion, but it also serves as a reservoir to maintain serum calcium concentrations. Calcium plays a central role in a wide range of essential functions. Its metabolism is regulated by 3 major ...
... Stable isotopes of tree rings are frequently used as proxies in climate change studies. However, species-specific relationships between climate and tree-ring stable isotopes have not yet been studied in riparian forests in the savannas of West Africa. Four cross-dated discs, each of Afzelia africana Sm. (evergreen) and Anogeissus leiocarpus (DC.) Guill. & Perr. (deciduous) in the humid (HSZ) a ...
Diana Valesca Carvalho; Lorena Mara Alexandre Silva; Elenilson Godoy Alves Filho; Flávia Almeida Santos; Renan Pereira de Lima; Ana Flávia Seraine Custódio Viana; Paulo Iury Gomes Nunes; Said Gonçalves da Cruz Fonseca; Tiago Sousa de Melo; Daniel de Araújo Viana; Maria Izabel Gallão; Edy Sousa de Brito
... Dietary fiber intake plays an important role in the prevention of obesity. This study aimed at investigating the effect of cashew fiber without low molecular weight compounds (CABwc) on obesity prevention and metabolomics in a murine model of diet-induced obesity. Mice were fed a chow diet (CD), a high-fat diet (HFD) or a high-fat diet supplemented with CABwc (10%) (HFD-CABwc) for 15 weeks. The bo ...
Fourier transform infrared spectroscopy; agricultural wastes; biochar; biomass; chemical analysis; cost effectiveness; fuels; heat treatment; particle size; pyrolysis; response surface methodology; scanning electron microscopes; scanning electron microscopy; temperature
Abstract:
... Agricultural waste is considered as a burden all over the world due to its disposal issues. In this research an effort is made to utilize agricultural residue for the production of cost effective and environmental friendly fuel. The study also focused on investigation of role of best process conditions to get optimized biochar (OB) from the slow pyrolysis of novel biomass, waste pomegranate peel ( ...
... A field study of common ragweed (Ambrosia artemisiifolia L.) in European Russia provided information on the occurrence and abundance of the species and enabled a prediction of the possible boundaries of species naturalization. As a result, the understanding of the ecological limits of common ragweed distribution related to the limiting environmental factors was refined. Insufficient heat supply du ...
Bactrocera correcta; Mangifera indica; Psidium guajava; beta-caryophyllene; bioassays; control methods; fruit flies; guavas; males; mangoes; methyl eugenol; monitoring; muscalure; pests; pheromone glands; pheromones; virgin females; China
Abstract:
... The guava fruit fly, Bactrocera correcta, is one of the major pests affecting mango (Mangifera indica) and guava (Psidium guajava) production in China. The compound β-caryophyllene was identified from the rectal gland extracts of wild B. correcta males and was demonstrated to be a more specific and potent male lure than methyl eugenol (ME) for B. correcta. In order to find potential additiona ...
Anestis C. Karkanis; Ângela Fernandes; Josiana Vaz; Spyridon Petropoulos; Eleftheria Georgiou; Ana Ciric; Marina Sokovic; Taofiq Oludemi; Lillian Barros; Isabel C. F. R. Ferreira
... Sanguisorba minor Scop. is a perennial plant native to the Mediterranean region which exhibits several medicinal activities. In the present study, plant growth, chemical composition, and antitumor and antimicrobial properties of S. minor plants were evaluated under different growing conditions. In particular, plants were grown on different substrates, namely (A) peat, (B) peat : perlite (1 : 1) an ...
community structure; fertilizer application; grasslands; growing season; irrigation; nitrogen; nitrogen fertilizers; plant communities; species richness
Abstract:
... Scientists have known for over a century that resource addition can lead to species loss from plant communities. Recent studies have also shown that resource addition can substantially restructure communities by altering their functional and taxonomic composition—even when species richness remains unchanged. Understanding which aspects of community structure are impacted by different resources and ...
... Over the past few decades, the sharp rise in post-consumer plastic and biomass waste has resulted in an ever growing challenge to treat such waste sustainably. Co-pyrogasification of plastics and biomass mixtures, as opposed to separately converting these waste streams, offers several advantages including an improvement in syngas quality and composition (H₂/CO ratio) in relation to the desired app ...
... Phlorizin (PHZ), a type of dihydrochalcone widely found in Rosaceae such as apples, is the first compound discovered as a sodium-glucose cotransporter (SGLT) inhibitor. It has been confirmed to improve the symptoms of diabetes and diabetic complications effectively. Like other flavonoids, the bioavailability challenge of PHZ is the wide phase I and II metabolism in the digestive tract. In this stu ...
Michael D. Anderson; Mark A. Davis; Craig Burke; Cody Dalrymple; Mira Ensley‐Field; Alex Lewanski; Paul Manning; Zach Moore; Rina Morisawa; Phuong Nguyen; Allison Pillar; Jerald J. Dosch
... A mechanistic understanding of the causes of naturalization in terrestrial plant communities, and the consequences for associated ecosystems, relies on understanding whether and how native and non‐native plant traits differ. Traits of non‐native plants may either help them compete or avoid competition with natives, and depending on their interaction with the native community, the non‐native may ac ...
... The nutritional properties and biological activities of kiwifruit and their different products made from same raw kiwifruit were investigated. Compared with the more common Hayward variety, three new kiwifruit varieties, namely Qinmei, Hongyang and Huayou, showed better nutritional properties and biological activities. After processing into different products, the nutritional properties and biolog ...
air; air pollution; dust; environmental assessment; health effects assessments; human health; industrial sites; leaves; mercury; risk; risk assessment; soil; soil sampling; traffic; urban areas; Armenia
Abstract:
... Mercury has unique chemical features which predetermine its migration and accumulation behaviors in the environment. In this regard, the studies devoted to the identification of Hg contents and pollution issues should consider both transit and deponent medium such as air dust and soils, respectively. This paper aimed at exploring spatial distribution characteristics, pollution levels and human hea ...
... Lysozyme plays a significant role in defense against bacterial pathogens and in regulating the interactions between gut microbiota and host immune systems. Here, the effects of dietary lysozyme on the intestinal development, immunity, and colonic microbiota of piglets were comprehensively evaluated. Twenty-four seven-day-old piglets from Landrace × Yorkshire sows (n = 8 per group) received no supp ...
Yuncong XuThese authors contributed to the work equally and should be regarded as co-first authors.; Yuhui Yang; Jin Sun; Yuanyuan Zhang; Tingyu Luo; Bowen Li; Yuge Jiang; Yonghui Shi; Guowei Le
... Dietary methionine restriction (MR) has been reported to extend lifespan, improve insulin sensitivity, reduce adiposity and inflammation response, and in particular, increase endogenous hydrogen sulfide (H₂S) production. H₂S is a critical anti-inflammatory molecule in the central nervous system and a gaseous signal molecule that mediates learning and memory function. Hence, the present study aimed ...
... The dietary sesquiterpene dienone zerumbone (ZER) selectively targets cancer cells, inducing mitochondrial dysfunction and apoptosis, and protects non-cancerous cells towards oxidative stress and insult. This study examines the in vitro effects of ZER on lipid peroxidation in biological systems (cholesterol and phospholipid membrane oxidation) and explores its antitumor action in terms of its abil ...
... The present study deals with the comparison of different types of pretreatment (thermo-dilute acid, thermo-dilute alkaline, microwave assisted thermo-dilute acid and microwave assisted thermo-dilute alkaline) of groundnut shell. Based on structural characterization (Fourier transformed infrared spectroscopy, X-ray diffraction, scanning electron microscopy) and reducing sugar yield, microwave assis ...
... Climate change is expected to increase weather extremes and variability, including more frequent weather whiplashes or extreme swings between severe drought and extraordinarily wet years. Shifts in precipitation patterns will alter stream flow regimes, affecting critical life history stages of sensitive aquatic organisms. Understanding how threatened fish species, such as steelhead/rainbow trout ( ...
animal manures; biogas; charcoal; energy use and consumption; feces; field experimentation; fuelwood; household surveys; households; interviews; sampling; t-test; Ethiopia
Abstract:
... This paper examines the role of biogas technology in saving wood and evaluates whether biogas digesters are likely to help reduce fuel wood consumption in the rural households of Wondo Genet, Southern Ethiopia. A household survey, oral interviews, key informant interviews and a field experiment were carried out on biogas user and non-user households. A multi-stage sampling technique was then appli ...
Bayesian theory; deforestation; ecoregions; gross domestic product; population growth; rain; reforestation; scanning electron microscopy; standard deviation; structural equation modeling; tropical rain forests; Colombia; Ecuador
Abstract:
... Tropical rain forests are suffering the highest deforestation and reforestation ever recorded. Interactions between direct (proximate or direct causes) and indirect (underling or indirect causes) drivers could cluster these forest cover changes forming hotspots (areas that exhibit significant spatial correlation of deforestation or reforestation transitions). Using land use–land cover maps and glo ...
... In forest ecosystems, natural and anthropogenic disturbances alter canopy structure, understory vegetation, amount of woody debris, and the properties of litter and soil layers. The magnitude of these environmental changes is context-dependent and determined by the properties of the disturbance, such as the frequency, intensity, duration, and extent. Therefore, disturbances can dynamically impact ...
... The gut is hypothesised to play an important role in the development and progression of sepsis. It is however unknown whether the gut microbiome and the gut barrier function is already altered early in sepsis development and whether it is possible to modulate the microbiome in early sepsis. Therefore, a randomised, double blind, placebo-controlled pilot study to examine the alterations of the micr ...
analysis of variance; climatic factors; computer software; defoliation; enzymes; forests; growth habit; phenology; rain; shade tolerance; statistical models; temperature; tree and stand measurements; trees; Ecuador
Abstract:
... Research Highlights: This study determined that treatment “release from competitors” causes different reactions in selected timber species respective to diametrical growth, in which the initial size of the tree (diametric class) is important. Also, the growth habit and phenological traits (defoliation) of the species must be considered, which may have an influence on growth after relea ...
... Visphota kushta (blistering skin disease) is characterized by transparent blisters with thin skin covering. Management of Visphota Kushta in Ayurveda is rarely reported. The case reported here showed significant regression in the condition in short span of time and could completely stop the use of anti histamines and corticosteroids. A 32 year old female, presented with complaints of blisters over ...
... Bamboo grid packing (BGP) is a new kind of cooling packing, used in some Chinese hyperbolic cooling towers, which has excellent potential to complement or replace cooling packing made of polyvinyl chloride (PVC), cement, and glass fiber-reinforced plastic. For bamboo applications, mechanical properties and service life are matters of concern; this is strongly associated with bamboo’s chemica ...
... Purpose of this study was to analyse the ability of isolated Leptospirillum to extract the metals from television printed circuit boards (TV-PCBs). Activation of iron oxidizer enriched from coal sample resulted in 8.5-fold enhancement in iron oxidation rate. The television printed circuit board (TV-PCBs) adapted culture showed 1.2-, 1.3- and 1.6-fold higher Cu, Zn and Ni leaching, respectively, fr ...
... India is a developing economy, and an energy-hungry state. With its ever increasing demand for fuel, India is the fourth largest consumer of crude oil in the world and imports 70% of its total demand. Also, to reduce the carbon footprint, the search is on for eco-friendly and renewable sources of energy. In India, one such unconventional fuel is ethanol produced from sugarcane molasses and blended ...
... Red beetroot as the main source of natural red dye is rich in betalain pigments, which are divided into betacyanins and betaxanthins with antioxidant, antimicrobial and antiviral activity. In this study, chitosan as a deacetylated derivative of chitin, non-toxic, biodegradable and biocompatible polysaccharide, was extracted from shrimp wastes by demineralization, deproteinization and deacetylation ...
... Indiscriminate disposal and burning of agricultural wastes constitute environmental pollution and increase in greenhouse gases emission. Renewable nature and availability of agricultural wastes has stimulated researchers to explore “wastes to wealth creation” policy. Three agricultural wastes were investigated for potential use for silica production. Proximate analysis, thermogravimetric analysis ...
data collection; hyperspectral imagery; remote sensing
Abstract:
... In this letter, a novel edge-preserving filtering based approach is proposed for feature extraction of hyperspectral images, which consists of the following steps. First, the dimension of the hyperspectral image is reduced with an averaging based method. Then, the resulting features are obtained by performing edge-preserving filtering on the dimension reduced image, in which a learned edge detecti ...
... False codling moth (FCM), Thaumatotibia leucotreta is a key pest of citrus orange and other plants causing fruit loss through larval feeding. Although this pest is native to sub-Saharan Africa little is known on its performance on orange and vegetables in Kenya and Tanzania. Our objective was to assess the incidence, oviposition preference and offspring performance of FCM on orange and vegetables, ...
Betula pendula subsp. mandshurica; dominant species; ecosystems; fire intensity; leaves; nitrogen; pioneer species; soil; soil nutrients; species diversity; stoichiometry; total nitrogen; trees; wildfires
Abstract:
... Stabilizing the local elemental stoichiometry is an important step toward restoring species diversity in a damaged ecosystem, especially those affected by wildfire. Stability of nitrogen (N) utilization is mainly affected by wildfire through restoration, which is one of the most important parts of stoichiometric utilization. However, the mechanisms underlying the relationship between N utilization ...
... Patulin (PAT) is a mycotoxin widely found in fruits and vegetables. Several reviews and studies have hypothesized that in vivo PAT toxicity is related to gut barrier dysfunction, but evidence for this is not substantial. The goal of the present study was to further demonstrate the role of the gut barrier in food-borne PAT toxicity. In vitro assays showed that PAT exposure induced significant cell ...
... Many studies have been conducted to forecast and analyze the price of carbon in an emission trading scheme, also known as a cap-and-trade market. Exhaustive forecasting studies have been seldom (if ever) performed in the Western Climate Initiative (WCI) market. Because of the distinctive market dynamics in the WCI, the results of research on other markets may not be applicable to forecast the carb ...
adipocytes; brown adipose tissue; energy metabolism; heat production; obesity; therapeutics; white adipose tissue
Abstract:
... The global incidence of obesity and its complications continue to rise along with a demand for novel therapeutic approaches. In addition to classic brown adipose tissue (BAT), the formation of brown-like adipocytes called beige adipocytes, within white adipose tissue (WAT), has attracted much attention as a therapeutic target due to its inducible features when stimulated, resulting in the dissipat ...
... The morphology, inclination, and spatial distribution of leaves in different parts of tree crowns are important determinants of the radiation, momentum, and gas exchange between the canopy and the atmosphere. However, it is not well known how these foliage-related traits vary among species differing in successional status. We measured leaf size, leaf mass area (LMA), leaf inclination (angle to the ...
Alnus cremastogyne; alleles; arithmetics; basins; ecological function; genetic markers; genetic variation; geographical distribution; heterozygosity; hills; indigenous species; microsatellite repeats; nitrogen-fixing trees; population genetics; population structure; variance; China
Abstract:
... Alnus cremastogyne Burk. is a nonleguminous, nitrogen-fixing tree species. It is also the most important endemic species of Alnus Mill. in China, possessing important ecological functions. This study investigated population genetic variation in A. cremastogyne using 175 trees sampled from 14 populations native to Sichuan Province with 25 simple sequence repeat (SSR) markers. Our analysis showed th ...
Hevea brasiliensis; atmospheric precipitation; fungi; leaf blight; plantations; relative humidity; risk assessment; rubber; uncertainty; Africa; Asia; Brazil; North America
Abstract:
... South American leaf blight (SALB) of Para rubber trees (Hevea brasiliensis Muell. Arg.) is a serious fungal disease that hinders rubber production in the Americas and raises concerns over the future of rubber cultivation in Asia and Africa. The existing evidence of the influence of weather conditions on SALB outbreaks in Brazil has motivated a number of assessment studies seeking to produce risk m ...
Saccharomyces cerevisiae; carbon; catalysts; cellobiose; cotton; enzymatic hydrolysis; ethanol; fermentation; formic acid; glucose; hot water treatment; hydrolysis; hydroxymethylfurfural; levulinic acid; microwave treatment; steaming; sulfuric acid; temperature; wastes; water solubility
Abstract:
... Direct hydrolysis of a towel to glucose was investigated using steam explosion and microwave-assisted treatment to find effective uses for cotton waste. The maximum glucose yield by direct hydrolysis (based on an untreated towel) was 18.8%, obtained at a steam pressure of 5.5 MPa (at 271 °C) and steaming time of 5 min using steam explosion. For the microwave-assisted treatment, with a 1.0 (w/w)% s ...
... The DREB transcription factors regulate multiple stress response genes, and are therefore useful for molecular plant breeding. AhDREB, a stress-inducible gene, was isolated from Atriplex hortensis L. and introduced into Populus tomentosa Carrière under the control of the CaMV35S promoter. Under salt stress, the chlorophyll content and net photosynthetic rate were higher in transgenic lines ...
... In the Sahelian region, different approaches are being used to halt environmental degradation and restore tree cover, with varying degrees of success. Initiatives vary according to projects’ objectives, type of land to restore, and technical practices used (natural regeneration, farmer-managed assisted regeneration, enrichment planting, etc.). This study investigates tree planting choices an ...
... Soil organic matter (SOM) is an important index to evaluate soil fertility and soil quality, while playing an important role in the terrestrial carbon cycle. The technology of hyperspectral remote sensing is an important method to estimate SOM content efficiently and accurately. This study researched the best hyperspectral estimation model for SOM content in Shangri-La forest soil. The spectral re ...
Acer saccharum subsp. saccharum; forest canopy; forest reserves; forestry development; habitat fragmentation; hardwood; indigenous species; old-growth forests; overstory; species diversity; spring; storm damage; tree and stand measurements; trees; understory; wind; wind damage; Kentucky
Abstract:
... Wind disturbance is an important factor that can affect the development of the forests of the Central Hardwood Region of the United States. However, there have been few long-term studies of the recovery of these systems following wind damage. Long-term studies of protected forest systems, such as Dinsmore Woods in Northern Kentucky, within the fragmented forest of this region are valuable as they ...
... The article presents the results of long-term monitoring studies on the abundance dynamics of invasive species Cercopagis pengoi (Ostroumov, 1891) in the Vistula (Kaliningradskii) Lagoon of the Baltic Sea and its impact on the structural and functional organization of zooplankton community. The data on the effect of the invader on the zooplankton taxonomic structure and productivity are presented. ...
European Union; bioeconomics; climate; climate change; decision support systems; forest management; forests; harvesting; landscapes; linear programming; market prices; markets; models; peatlands; planning; prediction; profitability; pulpwood; sustainable forestry; wood fibers; Ireland
Abstract:
... Research Highlights: Predicting impacts on forest management of Climate Change (CC) and dynamic timber prices by incorporating these external factors in a Forest Management Decision Support System (FMDSS). Background and Objectives: Forest managers must comply with Sustainable Forest Management (SFM) practices, including considering the long-term impacts that CC and the bioeconomy may have on thei ...
... Advances in high-performance computer resources and exploitation of high-density terrestrial laser scanning (TLS) data allow for reconstruction of close-to-reality 3D forest scenes for use in canopy radiative transfer models. Consequently, our main objectives were (i) to reconstruct 3D representation of Norway spruce (Picea abies) trees by deriving distribution of woody and foliage elements from T ...
... Ticks harbour and, in many cases transmit to their vertebrate hosts, a wide variety of pathogenic, apathogenic and endosymbiotic microorganisms. Recent molecular analyses have greatly increased the range of bacterial species potentially associated with ticks, but in most cases cannot distinguish between surface contaminants, microorganisms present in the remains of the previous blood meal and trul ...
... The management of lead (Pb) exposure and toxicity remains a major public health priority worldwide. In our previous study, the probiotic strain Lactobacillus plantarum CCFM8661 prevented Pb absorption in mice via intestinal sequestration. This follow-up study aimed to evaluate the additional protective mechanism of L. plantarum CCFM8661 with a focus on its regulation of enterohepatic circulation. ...
... Integrated bamboo-chicken farming (BCF) systems are a traditional agroforestry pattern with large economic benefits in subtropical China. However, little is known regarding the effect of this integration on the bamboo leaf-associated microbiome, which can be very important for disease control and nutrient turnover. In the present study, we compared the leaf-associated bacterial and fungal communit ...
... Wildfires are currently considered the major threat to forests in Mediterranean countries. It has been implied that a large percentage of arson-caused fires in Spain are connected with the extensive reforestation programs implemented between 1940 and 1970. However, no consistent studies have been conducted to study the relationships between arson-caused fires and stand origin. Therefore, the goal ...
... Obtaining information on vertical forest structure requires detailed data acquisition and analysis which is often performed at a plot level. With the growing availability of multi-modal satellite remote sensing (SRS) datasets, their usability towards forest structure estimation is increasing. We assessed the relationship of PlanetScope-, Sentinel-2-, and Landsat-7-derived vegetation indices (VIs), ...
... Tropical reforestation initiatives are widely recognized as a key strategy for mitigating rising atmospheric CO2 concentrations. Although rapid tree growth in young secondary forests and plantations sequesters large amounts of carbon (C) in biomass, the choice of tree species for reforestation projects is crucial, as species identity and diversity affect microbial activity and soil C cy ...
... The greater wax moth, Galleria mellonella L., is one of main pests of honeybees. The larvae burrow into the wax, damaging the bee comb and degenerating bee products, but also causes severe effects like driving the whole colony to abscond. In the present study, we used electroantennograms, a Y maze, and an oviposition site choice bioassay to test whether the greater wax moth can eavesdrop on bee al ...
... Mushrooms are cherished as sources of food, nutrients and medicine. Inadequate data on the identity and medicinal properties of many wild Nigerian mushrooms has limited their utilization. This work was carried out to identify and authenticate a puffball mushroom using molecular tools and investigate its antidiabetic properties. Taxonomic guides were employed in morphological identifying the mushro ...
... Although livestock farming (sheep, goats, pigs, and cattle) is an important economic activity in Corsica, a French Mediterranean island, knowledge about the tick fauna and microorganisms carried by them remains scarce. This study aimed to investigate the presence and perform molecular characterization of Anaplasmataceae, Rickettsia spp., and Borrelia burgdorferi sensu lato (sl) in tick species col ...
... Plant nitrogen (N) and phosphorus (P) resorption is an important strategy to conserve N and P in the face of nutrient limitation. However, little is known about the variation of N and P resorption efficiency (NRE and PRE) and their correlation with leaves and soil C:N:P stoichiometry in black locust forests (Robinia pseudoacacia L.) of different ages. In this study, we measured C, N, and P concent ...
... As an alternative to the traditional IPCC-based accounting of GHG emissions based on a geographical perspective (only emissions relating to activities that occur nationally are taken into account), consumption-based accountings have shown the quantity of CO₂ emissions embodied in international trade. However, few studies have focused on the contribution of non-CO₂ emissions such as methane (CH₄) a ...
alcohol drinking; attitudes and opinions; body size; dietary fiber; eating habits; fruits; guidelines; health information; neoplasms; physical activity; risk reduction; vegetable consumption
Abstract:
... With the high burden of cancer worldwide, primary prevention has been identified as a key cancer control strategy to reduce this burden. Diet and nutrition are important modifiable factors that may alter the risk of developing cancer, because several dietary components including alcohol consumption, fruit and vegetable intake, and dietary fiber have been shown to significantly impact cancer risk. ...
forests; information sources; models; publications
Abstract:
... Open access models for academic publishing offer an alternative to traditional subscription-based journals. In the open access model, the author generally retains the copyright and the published articles are available free on the internet. Publication costs are either borne by the author as article processing charges, or are free for some journals published by societies or institutions. Traditiona ...
analytical methods; data analysis; oils; simulation models
Abstract:
... To maximize oil recovery from a bottom water drive reservoir using a vertical well, estimation of transition zone thickness and determination of critical rate are very important. To augment or sustain the oil production and recovery rate, it is necessary to place the well using proper offset from water/oil contact (WOC) and assign a proper liquid rate. The objective of this paper is to establish a ...
... In this letter, a family of estimators based on truncated moments are proposed to estimate the parameters of compound-Gaussian model with inverse gamma texture. The truncated-moments estimation method generalizes the previous bi-percentile estimators, and the proposed estimator is robust to outliers. The experiments based on simulated and real sea clutter data show that the proposed estimator outp ...
Palaemon; coasts; ecological invasion; introduced species; shrimp; Black Sea
Abstract:
... The paper reports the find of shrimp species from the Palaemonidae family Palaemon longirostris H. Milne Edwards, 1837, new for the Russian sector of the Black Sea in the coastal zone of Crimea. The species was recorded in the Sevastopol Bay (the city of Sevastopol) in July 2018. ...
air; air pollution; coasts; dry deposition; gas chromatography-mass spectrometry; methylation; polycyclic aromatic hydrocarbons; salinity; surface water; temperature; wastewater; Red Sea
Abstract:
... The air-water exchange of polycyclic aromatic hydrocarbons (PAHs) is an important process in determining the fate, transport and chemical loadings of these contaminants in the atmosphere and water bodies. Concentration levels of PAHs in air (gaseous and particulate) and surface water were investigated in the environments of two polluted lagoons along the eastern coast of the Red Sea to study air w ...
... Snail shell (SS), a good natural source of calcium carbonate, was tested as a catalyst for transesterification reaction. SS was calcined and modified with potassium hydroxide (KOH) to obtain a catalyst with high activity, and characterized by Fourier-transform infrared spectra, X-ray diffraction, scanning electron microscope with Energy Dispersive Spectroscopy (EDS) and thermal gravimetric analysi ...
... The objective of this study was to evaluate the ability of a polyphenolic extract from longan seeds as a wound-healing material for deep second-degree burn wounds. The total phenol content of the extract reached 45.28 ± 1.22 mg GAE per g DW when 70% ethanol was used as the extraction solvent, and then AB-8 resin was used for purification. Results from the antioxidant assay in vitro (DPPH˙ and hydr ...
... Glycerol has been known from ancient times. The microbial synthesis of glycerol has declined due to difficulty in separation and purification from broth and it is unable to compete with chemical synthesis from petrochemical feedstock. The rapid expansion of biodiesel industries generates a tremendous quantity of waste glycerol as the main by-product; thus, the disposal of it becomes an environment ...
blight; case studies; commercialization; cotton; disease resistance; genetic engineering; genetically modified plants; gossypol; greening disease; markets; potatoes; private sector; recombinant DNA; safety assessment; scientists; specialty crops; United States
Abstract:
... To be commercialized and grown in the US, genetically engineered (GE) crops typically go through an extensive food, feed, and environmental safety assessment process which, in certain instances, requires complex consultations with three different US regulatory agencies. Many small market, niche, and specialty crops have been genetically engineered using the modern tools of recombinant DNA but few ...
David C. Vuono; Robert w. Read; James Hemp; Benjamin W. Sullivan; John A. III Arone; Iva Neveux; Robert R. Blank; Evan Loney; David Miceli; Mari-Karoliina H. Winkler; Romy Chakraborty; David A. Stahl; Joseph J. Grzymski
... Respiratory ammonification and denitrification are two evolutionarily unrelated dissimilatory nitrogen (N) processes central to the global N cycle, the activity of which is thought to be controlled by carbon (C) to nitrate (NO3-) ratio. Here we find that Intrasporangium calvum C5, a novel dual-pathway denitrifier/respiratory ammonifier, disproportionately utilizes ammonification rather than denitr ...
... A study was conducted in eighteen sheep divided into three groups of six animals each and fed on a diet comprising finger millet (Eleusine coracana) straw and concentrate in 50:50. Animals in the control group (T₀) received diet without tanniferous tree leaves, while in T₁ and T₂ groups, animals received diets with Syzygium cumini (source of HT) and Machilus bombycina (source of CT), respectively. ...
... Pistacia chinensis Bunge is widely acknowledged to be dioecious, but rare monoecious individuals have been found. However, the origin of monoecism and the sex differentiation of different sex types remain intriguing questions. Here, sex expressions were explored by identification of sex-associated DNA markers, determination of the sex stability after grafting, and histological characterization of ...
... The ponderosa pine forests in the Davis Mountains of western Texas recently experienced a major mortality event caused, in part, by an extended regional drought that predisposed trees and stands to mortality from both western pine beetle and wildfires. The loss of many overstory pines and the scarcity of natural ponderosa pine regeneration pose a considerable challenge to restoration. A commission ...
... Elevations in cytosolic free calcium concentration constitute a fundamental signal transduction mechanism in plants; however, the particular characteristics of calcium ion (Ca2+) signal occurrence in plants is still under debate. Little is known about how stimulus-specific Ca2+ signal fluctuations are generated. Therefore, we investigated the identity of the Ca2+ signal generation pathways, influe ...
... We investigated the spatial-temporal patterns of spruce budworm (Choristoneura fumiferana (Clem.); SBW) defoliation within 57 plots over 5 years during the current SBW outbreak in Québec. Although spatial-temporal variability of SBW defoliation has been studied at several scales, the spatial dependence between individual defoliated trees within a plot has not been quantified, and effects of ...
bioactive properties; food plants; mitochondria; muscle development; nuclear magnetic resonance spectroscopy; quantum mechanics; sesquiterpenoids; tautomerization; tautomers; temperature
Abstract:
... Curcumenol was firstly revealed as a pair of hemiacetal–ketone tautomers in solutions by using temperature variation ¹H-NMR experiments, 2D NMR, and chemical methods. Quantum chemical calculation allowed the explanation of its spectroscopic behavior. An antioxidative SAR study on its derivatives verified the tautomeric bio-significance. Curcumenol also remarkably enhanced myogenic differentiation ...
... With the rapid development of the society and the economy, people are paying more attention to the value of natural resources and the benefits of the ecological environment. Evaluating the value of eco-assets has become a focus of concern. Quantitative remote sensing measurements, land data and other auxiliary data were used to measure the eco-assets in 46 regions of the Wanjiang Demonstration Are ...
bioenergy; carbon; climate change; energy; forest thinning; forests; fossil fuels; issues and policy; land use; statistical analysis; trees; wood; Taiwan
Abstract:
... Forest thinning is a way to make room for the growth of remaining trees, and the thinned wood can serve as a fuel for bioenergy in order to combat climate change. Using thinned wood for bioenergy can substitute for fossil fuel energy, resulting in potential carbon benefit. Since not all thinned wood can be transported out of the forest for processing, the extraction ratio (extraction volume/thinni ...
... Metal nanoparticles (NPs) are finding ever-wider applications in plant production (agricultural and forestry-related) as fertilisers, pesticides and growth stimulators. This makes it essential to examine their impact on a variety of plants, including trees. In the study detailed here, we investigated the effects of nanoparticles of silver and copper (i.e., AgNPs and CuNPs) on growth, and chlorophy ...
culture and humanities; environmental factors; social environment; tourism; China
Abstract:
... The location of the homestay agglomeration is closely related to its proximity to the resources environment and the humanities and social environments. From the macroscopic and microscopic aspects, this study uses the analytic hierarchy process and the expert consultation method to construct a relatively comprehensive evaluation system including economic and environmental factors, tourism developm ...
Heracleum sosnowskyi; ecological invasion; hybrids; interspecific hybridization; juices; new species; skin (animal); Russia
Abstract:
... In 2018, a new species, Heracleum ponticum (Lipsky) Schischk., was identified in the Priozersky district of Leningrad oblast. The H. ponticum plant does not contain photodynamically active furocumarins, but interspecific hybrids of this species with the H. sosnowskyi Manden. plant may contain some substances in their juice that are dangerous to human skin. The approximate growing area of H. pontic ...
... The importance of an adequate periconceptional maternal folate status to prevent fetal neural tube defects has been well demonstrated and resulted in the recommendation for women to use folic acid supplements during the periconception period. The importance of maternal folate status for offspring neurodevelopment and brain health is less well described. We reviewed the current evidence linking mat ...
United Nations; clean energy; climate; forestry development; forests; governance; human health; issues and policy; stakeholders; surveys; sustainable forestry; Austria
Abstract:
... Since the inception of the Sustainable Development Goals (SDGs) in 2015, there has been much conceptual progress on the linkages across the 17 goals and their 169 targets. While this kind of conceptualization is an essential first step, action must now move towards systematic policy design, implementation, and multi-stakeholder collaborations that can translate such understanding into concrete res ...
Picea schrenkiana; climate; climate change; dendrochronology; disaster preparedness; drought; mountains; rivers; variance; water management; watersheds; wind direction; Central Asia
Abstract:
... The Chu River is one of the most important rivers in arid Central Asia. Its discharge is affected by climate change. Here, we establish a tree-ring chronology for the upper Chu River Basin and analyze the relationships between radial growth, climate, and discharge. The results show that the radial growth of Schrenk spruce (Picea schrenkiana Fisch. et Mey.) is controlled by moisture. We also recons ...
air temperature; cloud cover; sap flow; shrinkage; transpiration; tree trunk; trees; water content
Abstract:
... The responsiveness of four types of stem diameter shrinkage indicators to sap flow changes was compared under four air temperature and cloudiness conditions: above 0 °C below 80% cloud cover days; above 0 °C large percentage cloud cover days; low temperature below 80% cloud cover days; and low temperature large percentage cloud cover days. In this study, we investigated the effects of indi ...
... Ticks are important vectors of emerging and re-emerging pathogens. The aim of this study was to determine tick species occurring in Xinjiang Uygur Autonomous Region (XUAR), especially on border regions. A total of 22,994 ticks (including 22,629 adults, 365 larvae and nymphs), belonging to six tick genera (i.e. Dermacentor, Hyalomma, Rhipicephalus, Haemaphysalis, Ixodes and Argas) and fourteen tick ...