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drug abuse; minorities (people); disease prevention; medical treatment; disease control programs; cocaine; rural health care; multicultural diversity; Blacks; qualitative analysis; Erythroxylum coca var. coca; focus groups; Florida
Abstract:
... Context: Cocaine is a major problem in the rural South, but knowledge is limited regarding the impact on African American populations. Purpose: This study of 18-39-year-old black drug users assessed perceptions of contributing factors to drug use and possible interventions. Methods: The study design was qualitative-descriptive, utilizing 4 focus groups with 5 rural women and 14 small-city resident ...
... Experiential learning is a time-honored approach that can help to "...seal the bond between the learner and the learned." Such learning encourages the making of meaning from individual and shared experiences and helps abstract concepts to become relevant to the learner. The 20th century educational theorist, John Dewey, articulated a need for a unified "theory of experience" that could guide educa ...
... Premise of the study: Research on the subject of heterostyly is often traced back to 1877 when Charles Darwin published the landmark book The Different Forms of Flowers on Plants of the Same Species. This book synthesized heterostyly research at the time, much of which Darwin conducted, and it continues to be a major contribution to the study of the breeding system. In this book, Darwin discussed ...
... Both missionaries and government policymakers in colonial Zimbabwe consciously identified agriculture as an important avenue in establishing broader paradigms of explanation. Missionary promotion of new farming practices inevitably challenged the existing spiritual landscape by insisting that rationalized individual labor could overcome powerful natural forces. This article examines various facets ...
Dietary Supplement Health and Education Act of 1994; Food and Drug Administration; androstenedione; business enterprises; dietary supplements; ingredients; marketing; sports nutrition
Abstract:
... On March 11, 2004, the Food and Drug Administration (FDA) pronounced that dietary supplement products containing androstenedione were adulterated new dietary ingredients under the Dietary Supplement Health and Education Act of 1994 (DSHEA). The FDA issued a press release, held a news conference, and sent warning letters to 23 companies that had manufactured, marketed or distributed the products co ...
... Floral organs of yellow passion fruit were chosen as experimental materials; flower shape, corolla colour, nectar ingredients and nectar content of yellow passion fruit were investigated. The research results indicated that passion fruit is creative in flower design. Appropriate arrangement of various representative elements – flower morphology, flower colour, nectar-create an excellent self-endor ...
... We describe here a new approach for the identification of affinity-bound proteins by proteolytic generation and mass spectrometric analysis of their antibody bound epitope peptides (epitope excision). The cardiac muscle protein troponin T was chosen as a protein antigen because of its diagnostic importance in myocardial infarct, and its previously characterised epitope structure. Two monoclonal an ...
laws and regulations; politics; exports; imports; case studies; agricultural history; economic policy; agricultural policy; international cooperation; Germany; United Kingdom; United States; Poland
European Union; agricultural land; brownfields; buildings; case studies; cities; climate; climate change; ecosystems; floods; food production; food safety; heat; hydroponics; infrastructure; land use; models; quality of life; soil; urbanization
Abstract:
... The tissue of cities is getting increasingly dense and compact, however, according to the current development models, the demand for living space per person, for industrial and commercial activities, for the transport infrastructure, requires more and more land, often to the detriment of agricultural fields, that surround cities. The occupation of agricultural lands has significant impact on the r ...
sexual reproduction; mating behavior; animals; insects; hormones; pheromones; sexual selection
Abstract:
... During close bodily contact, many species transfer substances that influence the behaviour or physiology of conspecifics. Such transfer is especially common during courtship and copulation. When this is the case the involved bioactive substances are favoured by sexual selection because their effects include increased egg production, inhibited remating, and changed sperm transport or storage in the ...
Escherichia coli; active sites; carbon nitride; cooling; crystal structure; disinfection; electron transfer; freezing; graphene; heat; humic acids; irradiation; light; microwave treatment; nanosheets; photocatalysis; photolysis; physicochemical properties; surface area; water purification
Abstract:
... Highly-crystalline 2-dimensional (2D) graphitic carbon nitride (g-C₃N₄) nanosheets with low structural imperfection usually possess high photocatalytic activity that benefits from the suppressed electron–hole recombination. However, the conventional exfoliation strategy is incapable for fast and clean preparation of such highly-quality g-C₃N₄ nanosheets from their bulk-type counterparts. Herein, h ...
mentoring; college students; agricultural education; Indiana
Abstract:
... The concept of mentoring is central to many educational programs in agriculture and natural resources. A mentor has been defined as one who fosters personal, educational, and professional growth in another person (the "mentee"). Within this definition, the mentee is often assumed to be younger than, or junior to, her or his mentor. This article presents a memoir of the author's experiences with hi ...
geographical distribution; soil water storage; plant available water; water conservation; terracing; soil water content; subsoil; drought; water stress; infiltration (hydrology); crop yield; rain; rain intensity; food security; soil fertility; field experimentation; terraces; water erosion; Mali
mathematical models; quantitative analysis; General Circulation Models; isotopes; evaporation; rain; temperature; water vapor; Japan
Abstract:
... A numerical model is proposed that describes the interaction between raindrops and water vapour near the planetary boundary layer to explain the "amount effect". This model relates the intensity to the isotopic composition of precipitation. The model resolves raindrop sizes, and explicitly includes: (1) the isotopic equilibration time of raindrops that is drop-size dependent; (2) raindrop transit ...
... Reflecting on past experiences is an important problem-solving technique when teachers face new situations. In fact, teachers' attitudes and practices are highly influenced by their prior experiences as both learners and teachers. This paper is based on the premise that growth as an effective teacher is enhanced when one reflects more deeply about what one believes about teaching and learning-and ...
... Thermal modification of wood by immersion in high temperature vegetable oils and other additives impart significant decay and mould fungi resistance, water repellency and dimensional stability. ...
... 'Angelys' is a new pear variety resulting from the cross 'Doyenné d’Hiver' x 'Doyenné du Comice'. This cross is part of a large breeding programme initiated by B. Thibault and L. Hermann at the INRA Fruit Breeding Station; this programme is a half-diallel involving 12 parents, 68 progenies and 10,626 seedlings with the aim to select late maturing cultivars with long storage ability. The female par ...
natural resource management; agricultural education; alternative crops; alternative farming; marketing strategies; decision support systems; decision making; buckwheat; Fagopyrum esculentum; Minnesota
Abstract:
... Decision cases have been used in the USA for both classroom and extension education within agriculture and natural resources. Use of cases has sometimes been limited by the extensive amount of time that may be required to assign and analyze conventional, text-based cases. Availability of video decision cases, which are visual and do not necessarily require reading, could foster the use of cases on ...
Amaranthaceae; Turkey (country); botany; diploidy; flora; new species; Northern Africa; Persian Gulf; Sardinia; Sicily
Abstract:
... A new species of Arthrocaulon Piirainen & G. Kadereit, A. meridionalis is described. This diploid taxon is known from the islands of Sicily and Sardinia and from circum-Mediterranean territories (from North Africa to the Anatolian Peninsula in Turkey and as far as the Persian Gulf on the Asian continent). The distinctive macro-, micromorphological and chorological features of this taxon are given. ...
Bucephala; Lontra canadensis; birds of prey; forage; lakes; rivers; spring; waterfowl; Newfoundland and Labrador
Abstract:
... This is the first documented incident of River Otter (Lutra canadensis) feeding on Common Goldeneye (Bucephala clangula) in a little studied region, southern Labrador. Our observations were made during spring staging when waterfowl aggregate at open water sites in frozen lakes and rivers, locally known as ashkui. We suggest that otters and raptors opportunistically forage on staging waterfowl at a ...
... To determine the role that a secondary school garden backyard (productive patio), played in the integration and development of one scholar community, we conducted this study to promote and introduce ecological and urban horticulture at the “Liceo Bolivariano Don Vicente Amengual Villonga” in the Palavecino municipality, Cabudare City of Lara state, Venezuela. This research was done in three steps; ...
... Despite recent reports indicating that tropical countries will suffer most from the negative impacts of climate change, including numerous educational and research campaigns, current surveys examining trends in good horticultural practices show that the majority of tropical vegetable growers are still using conventional production methods. In this experiment bell pepper seedlings were grown in tra ...
... As limited-control dog parks become more popular, concerns arise about whether these parks encourage interdog aggression. Systematic observations made at 1 park over 72 hr across 8 months found that 28 conflicts or potential conflicts occurred (< 0.5%). Of these, 14 were clear aggressive episodes. Each lasted less than 1 min (< 0.33% of total observation time). There were 14 other incidents of pos ...
... Lofland's earlier work, widely assumed to have been done on the beginnings in this country of the Unification Church of Reverend Moon, resulted in development of the most widely cited conversion model in the literature of sociology. Here he updates and extends this previous work, based on a follow-up study of the same group studied earlier. ...
African Americans; agricultural land; ancestry; case studies; extension agents; farmers; sharecropping; teachers; United States
Abstract:
... The oppressive histories of slavery, sharecropping, and discriminatory lending practices contribute to a modern American agricultural landscape where black farmers are underrepresented. While African Americans once made up 14% of the United States’ farmer population, today they only make up 1.4%. Moreover, the American farmer population overall is aging, and currently only 6% of farmers are under ...
fluorescence in situ hybridization; messenger RNA; alternative splicing; humans; complementary DNA; sequence alignment; dogs; single nucleotide polymorphism; amino acid sequences; gene expression; genes; nucleotide sequences; chromatin; sequence homology; physical chromosome mapping; dog breeds
Abstract:
... HMGA1 nonhistone proteins are reported to participate in various cellular processes including regulation of inducible gene transcription, integration of retroviruses into chromosomes, and the induction of neoplastic transformation and promotion of metastatic progression of cancer cells. Overexpression of HMGA1 was shown to be characteristic for various malignant tumors, suggesting a relation betwe ...
... A recent variation of expiration dating is freshness dating (i.e., "best if used by"). This research investigates how freshness dating influences the taste acceptance of a refrigerated product. Sensory tests of 36 panelists show two key findings. First, freshness dating influences the acceptability of products in a discontinuous or nonlinear manner. Second, it does so because it influences percept ...
... Stimulating plant defenses or resistant plant varieties is promising as an alternative method for limiting pesticide use in agriculture. To assess the defense status of the grapevine we have developed a triple approach called “BioMolChem”. The biological tests measure the efficacy of grapevine defenses against two major biotrophic pathogens (Erysiphe necator, Plasmopara viticola). Molecular assays ...
Cucumis melo; branching; breeding lines; cucumbers; fruit set; fruits; germplasm; harvesting; hermaphroditism; hybrids; introgression; labor; muskmelons; parents; phenotype; pickling; space and time; vegetable crops; Iran
Abstract:
... Melons (Cucumis melo) are an important vegetable crop. Melons are grown mostly for their sweet mature fruits, which are eaten fresh, but elongate-fruited forms are grown for their rather bland, juicy, immature fruits, which are eaten fresh, cooked, or pickled like cucumbers. Fruit set of melons is diffuse over time and space, resulting in the need for multiple harvesting of the crop. The "b ...
... Bonus-npK is a new fully soluble, crystalline formulation of potassium nitrate that has been specifically developed for foliar feeding of a large variety of crops. It is sprayed at concentrations of up to 10% for intensive foliar nutrition and for a prolonged effect, without any phytotoxic effects. Bonus-npK is potassium nitrate enriched with soluble phosphates and a special adjuvant. The moderate ...
... Rickettsia-like organisms (RLO) are obligate, often highly fastidious, intracellular bacterial parasites associated with a variety of vertebrate and invertebrate hosts. Despite their importance as causative agents of severe mortality outbreaks in farmed aquatic species, little is known about their life cycle and their host range. The present work reports the characterization of "Candidatus Cryptop ...
Karina M. Borges; W. Rodney Cooper; Stephen F. Garczynski; Jenita Thinakaran; Andy S. Jensen; David R. Horton; Joseph E. Munyaneza; Isabel Cueva; Nina M. Barcenas
... The psyllid Bactericera maculipennis (Crawford) (Hemiptera: Triozidae) often cohabits field bindweed (Convolvulus arvensis, Solanales: Convolvulaceae) and other plants with the congeneric psyllid, Bactericera cockerelli (Sulc), in the Pacific Northwestern United States. Bactericera cockerelli is a vector of “Candidatus Liberibacter solanacearum,” the pathogen associated with zebra chip disease of ...
... A large scale survey for marginal chlorosis in French strawberry production fields and nurseries by PCR amplification of "Candidatus Phlomobacter fragariae" and stolbur phytoplasma 16S rDNA was undertaken in 1996. Compilation of survey results from 1996 to 2001, clearly shows that "Ca P. fragariae" is predominant in strawberry production fields, while the stolbur phytoplasma predominantly is detec ...
... Click Cu(I)-catalyzed polymerizations of diynes that contained ester linkages and diazides were performed to produce polyesters (click polyesters) of large molecular weights [(~1.0-7.0) x 10⁴], that contained main-chain 1,4-disubstitued triazoles in excellent yields. Incorporation of triazole improved the thermal properties and magnified the even-odd effect of the methylene chain length. We also f ...
alkynes; catalysts; copper; crosslinking; gelation; hydrocolloids; polymers; temperature
Abstract:
... The strategy for in situ chemical gelation of poly(N-isopropylacrylamide-co-hydroxylethyl methacrylate) [P(NIPAAm-co-HEMA)]-based polymers was demonstrated. Two types of new P(NIPAAm-co-HEMA) derivatives with alkyne and azide pendant groups, respectively, were prepared. When the solutions of the two derivatives were mixed together, a crosslinking reaction, a type of Huisgen's 1,3-dipolar azide-alk ...
... "Click" chemistry-based surface modification strategy was developed for PDMS microchips to enhance separation performance for both amino acids and proteins. Alkyne-PEG was synthesized by a conventional procedure and then "click" grafted to azido-PDMS. FTIR absorption by attenuated total reflection and contact angle measurements proved efficient grafting of alkyne-PEG onto PDMS surface. Manifest EO ...
... The "Coagulation Test, " to determine the temperature to which meat had been cooked, was studied relative to the effect of variations in sample preparation methods on the coagulation temperature, biuret protein content and spectrophotometric absorbance value of 0.9% saline or water filtrates obtained from extracts of samples of rare, medium and well done portions of roast beef. Sample preparation ...