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1. First detailed description of adults and nymph of Cincticostella femorata (Tshernova, 1972) (Ephemeroptera: Ephemerellidae)

Author:
Zheng, Xuhongyi; Zhou, Changfa
Source:
Aquatic insects 2021 v.42 no.1 pp. 23-36
ISSN:
1744-4152
Subject:
spring,   etc   ; Ephemerellidae; males; penis;     Show all 4 Subjects
Abstract:
... The adults of Cincticostella femorata (Tshernova, 1972) (Ephemeroptera: Ephemerellidae), which were reared from mature nymphs in spring 2020, are described and photographed for the first time. Compared to the known males in the same genus, especially C. fusca (Kang and Yang, 1995), the male adults of C. femorata have simpler penis but more derived forceps and wings. Additionally, for the first tim ...
DOI:
10.1080/01650424.2020.1871026

2. A new hydrobiid species (Caenogastropoda, Truncatelloidea) from insular Greece

Author:
Radea, Canella; Lampri, Paraskevi Niki; Bakolitsas, Konstantinos; Parmakelis, Aristeidis
Source:
Mitteilungen aus dem Museum für Naturkunde in Berlin 2021 v.97 no.1 pp. 111-119
ISSN:
1860-0743
Subject:
spring,   etc   ; Gastropoda; museums; Greece;     Show all 4 Subjects
Abstract:
... Daphniola dione sp. nov., a valvatiform hydrobiid gastropod from Western Greece, is described based on conchological, anatomical and molecular data. D. dione is distinguished from the other species of the Greek endemic genus Daphniola by a unique combination of shell and soft body character states and by a 7–13% COI sequence divergence when compared to congeneric species. The only population of D. ...
DOI:
10.3897/zse.97.60254

3. A quasi-zero-stiffness device capable of vibration isolation and energy harvesting using piezoelectric buckled beams

Author:
Liu, Chaoran; Zhao, Rui; Yu, Kaiping; Lee, Heow Pueh; Liao, Baopeng
Source:
Energy 2021 v.233 pp. 121146
ISSN:
0360-5442
Subject:
spring,   etc   ; electric power; energy; vibration;     Show all 4 Subjects
Abstract:
... A quasi-zero-stiffness (QZS) device is proposed for both vibration isolation and energy harvesting based on a concept of converting part of the vibrational energy into electrical energy and concurrently reducing the energy transmitted to the vibration receiver. The proposed device is constructed by four piezoelectric buckled beams and a vertical spring. The structural layout of the piezoelectric b ...
DOI:
10.1016/j.energy.2021.121146

4. UAS Identify and Monitor Unusual Small-Scale Rhythmic Features in the Bay of Cádiz (Spain)

Author:
Talavera, Lara; Benavente, Javier; Del Río, Laura
Source:
Remote Sensing 2021 v.13 no.6
ISSN:
2072-4292
Subject:
spring,   etc   ; geometry; sediments; wavelengths; Spain;     Show all 5 Subjects
Abstract:
... Unusual shore-normal and barred-like rhythmic features were found in Camposoto Beach (Bay of Cádiz, SW Spain) during a monitoring program using unmanned aerial systems (UAS). They appeared in the backshore and persisted for 6 months (October 2017–March 2018). Their characteristics and possible formation mechanism were investigated analyzing: (1) UAS-derived high-resolution digital elevation models ...
DOI:
10.3390/rs13061188

5. Biological conclusions about importance of order in mobbing calls vary with the reproductive context in Great Tits (Parus major)

Author:
Salis, Ambre; Lengagne, Thierry; Lena, Jean‐Paul; Dutour, Mylene
Source:
TheIbis 2021 v.163 no.3 pp. 834-844
ISSN:
0019-1019
Subject:
spring,   etc   ; Parus major; cognition; humans; winter;     Show all 5 Subjects
Abstract:
... Currently, there is considerable debate surrounding the presence of some human language‐specific characteristics in non‐human animals, such as the use of compositional syntax (i.e. meaning of a sequence determined both by meaning of its individual parts and in the way they are combined). Compositional syntax has been investigated in mobbing calls of two closely related tit species, the Japanese Ti ...
DOI:
10.1111/ibi.12940

6. HydroQuakes, central Apennines, Italy: Towards a hydrogeochemical monitoring network for seismic precursors and the hydro-seismo-sensitivity of boron

Author:
Franchini, Stefania; Agostini, Samuele; Barberio, Marino Domenico; Barbieri, Maurizio; Billi, Andrea; Boschetti, Tiziano; Pennisi, Maddalena; Petitta, Marco
Source:
Journal of hydrology 2021 v.598 pp. 125754
ISSN:
0022-1694
Subject:
spring,   etc   ; boron; earthquakes; geophysics; hydrogeochemistry; Italy;     Show all 6 Subjects
Abstract:
... Hydrogeochemical changes before Mw ≥ ∼5.0 earthquakes are hoped to be applicable as seismic precursors. It is now necessary to pass from single experiences to structured networks, systematically monitoring large seismic areas for long periods. Our aim is to provide a pilot methodological experience for how such networks could be realized and the types of results they could deliver. We present the ...
DOI:
10.1016/j.jhydrol.2020.125754

7. Lessons from the 1656 Neapolitan Plague: Something to learn for the current coronavirus Pandemic?

Author:
Bifulco, Maurizio; Pisanti, Simona; Fusco, Idamaria
Source:
Vaccine 2021 v.39 no.27 pp. 3641-3643
ISSN:
0264-410X
Subject:
spring,   etc   ; COVID-19 infection; pandemic; plague; vaccines;     Show all 5 Subjects
Abstract:
... In the spring of 1656, an epidemic of bubonic plague suddenly fell on Naples, the capital of the Kingdom of the Two Sicilies. The epidemic had put a strain on the government authorities, forcing them to take sometimes drastic measures but, in most cases, scarcely decisive. The current health emergency caused by Covid-19 disease has many similarities with the epidemics of the past. Here we report t ...
DOI:
10.1016/j.vaccine.2021.05.046

8. A new synonym of Polygonatum in China, based on morphological and molecular evidence

Author:
Xia, Maoqin; Liu, Ying; Liu, Jingjing; Chen, Donghong; Shi, Yan; Bai, Zhicong; Xiao, Yu; Peng, Chen; Si, Jinping; Li, Pan; Qiu, Yingxiong
Source:
PhytoKeys 2021 v.175 pp. 137-149
ISSN:
1314-2003
Subject:
spring,   etc   ; Polygonatum; autumn; perianth; phylogeny; China;     Show all 6 Subjects
Abstract:
... PolygonatumkingianumCollett et Hemsl.var.grandifolium D.M. Liu & W.Z. Zeng (1981), which sprouts twice a year, once in spring and once in autumn, differs from Polygonatum kingianum in leaves, bracts, perianth and filaments. Morphological comparison and molecular phylogeny indicate that it is identical to the newly-published Polygonatum hunanense H.H. Liu & B.Z. Wang (2021). Hence, we propose that ...
DOI:
10.3897/phytokeys.175.63383

9. WaterbalANce, a WebApp for Thornthwaite–Mather Water Balance Computation: Comparison of Applications in Two European Watersheds

Author:
Mammoliti, Elisa; Fronzi, Davide; Mancini, Adriano; Valigi, Daniela; Tazioli, Alberto
Source:
Hydrology 2021 v.8 no.1
ISSN:
2306-5338
Subject:
springs (water),   etc   ; hydrologic cycle; streams; water management;     Show all 4 Subjects
Abstract:
... Nowadays, the balance between incoming precipitation and stream or spring discharge is a challenging aspect in many scientific disciplines related to water management. In this regard, although advances in the methodologies for water balance calculation concerning each component of the water cycle have been achieved, the Thornthwaite–Mather method remains one of the most used, especially for hydrog ...
DOI:
10.3390/hydrology8010034

10. Three-Dimensional Characterization of a Coastal Mode-Water Eddy from Multiplatform Observations and a Data Reconstruction Method

Author:
Manso-Narvarte, Ivan; Rubio, Anna; Jordà, Gabriel; Carpenter, Jeffrey; Merckelbach, Lucas; Caballero, Ainhoa
Source:
Remote Sensing 2021 v.13 no.4
ISSN:
2072-4292
Subject:
spring,   etc   ; radar; satellites; Bay of Biscay;     Show all 4 Subjects
Abstract:
... Coastal mesoscale eddies are important oceanic structures partially responsible for regulating ocean-shelf exchanges. However, their description and characterization are challenging; observations are often too scarce for studying their physical properties and environmental impacts at the required spatio-temporal resolution. Therefore, models and data extrapolation methods are key tools for this pu ...
DOI:
10.3390/rs13040674

11. Long-Term Variations of Plasmaspheric Total Electron Content from Topside GPS Observations on LEO Satellites

Author:
Jin, Shuanggen; Gao, Chao; Yuan, Liangliang; Guo, Peng; Calabia, Andres; Ruan, Haibing; Luo, Peng
Source:
Remote Sensing 2021 v.13 no.4
ISSN:
2072-4292
Subject:
spring,   etc   ; climate; latitude; magnetism; meteorology; summer;     Show all 6 Subjects
Abstract:
... The plasmasphere is located above the ionosphere with low-energy plasma, which is an important component of the solar-terrestrial space environment. As the link between the ionosphere and the magnetosphere, the plasmasphere plays an important role in the coupling process. Therefore, it is of great significance to study the electron content variation of the plasmasphere for the solar-terrestrial sp ...
DOI:
10.3390/rs13040545

12. Tensile-strength-controlling factors in unidirectional carbon fiber reinforced plastic composites

Author:
Yamamoto, Go; Koizumi, Keita; Nakamura, Takahiro; Hirano, Noriyuki; Okabe, Tomonaga
Source:
Composites 2021 v.140 pp. 106140
ISSN:
1359-835X
Subject:
spring,   etc   ; carbon fibers; epoxides; tensile strength;     Show all 4 Subjects
Abstract:
... Factors governing the tensile strength of unidirectional carbon fiber reinforced plastic (CFRP) composites were experimentally investigated by focusing on the mechanical characteristics of the epoxy matrix. Correlation analysis was conducted to reveal the mechanical characteristics of the matrix that affect the surface stress concentration of an intact fiber caused by a fracture site in an adjacen ...
DOI:
10.1016/j.compositesa.2020.106140

13. Prediction of spring flows using nonlinear autoregressive exogenous (NARX) neural network models

Author:
Di Nunno, Fabio; Granata, Francesco; Gargano, Rudy; de Marinis, Giovanni
Source:
Environmental monitoring and assessment 2021 v.193 no.6 pp. 350
ISSN:
0167-6369
Subject:
spring; springs (water),   etc   ; carbonates; climate; groundwater; karsts; prediction; sustainable development; Italy; Mediterranean region;     Show all 10 Subjects
Abstract:
... In the Mediterranean area, climate changes have led to long and frequent droughts with a drop in groundwater resources. An accurate prediction of the spring discharge is an essential task for the proper management of the groundwater resources and for the sustainable development of large areas of the Mediterranean basin. This study shows an unprecedented application of non-linear AutoRegressive wit ...
DOI:
10.1007/s10661-021-09135-6

14. Spatial coherency of the spring flood signal among major river basins of eastern boreal Canada inferred from flood rings

Author:
Nolin, A.F.; Tardif, J.C.; Conciatori, F.; Bergeron, Y.
Source:
Journal of hydrology 2021 v.596 pp. 126084
ISSN:
0022-1694
Subject:
spring; springs (water),   etc   ; climate change; dams (hydrology); earlywood; hydrologic data; lakes; rivers; Canada;     Show all 9 Subjects
Abstract:
... In eastern boreal Canada, long-term perspective in water resources and hydroelectric dam management is currently limited by the lack of long-term hydrological records. The research for new paleohydrological proxies would help fill this hydrological data gap and provide regional hydroclimatic predictive trajectories in the context of climate change. The development of long annually resolved series ...
DOI:
10.1016/j.jhydrol.2021.126084

15. Magnesium as Environmental Tracer for Karst Spring Baseflow/Overflow Assessment—A Case Study of the Pertuso Karst Spring (Latium Region, Italy)

Author:
Filippi, Francesco Maria De; Iacurto, Silvia; Grelle, Gerardo; Sappa, Giuseppe
Source:
Water 2021 v.13 no.1
ISSN:
2073-4441
Subject:
spring; springs (water),   etc   ; aquifers; base flow; case studies; groundwater; karsts; magnesium; mineralization; rain; rivers; Italy;     Show all 12 Subjects
Abstract:
... Following a previous research carried out on the same site, this paper presents the update of the Mg²⁺ based method for the estimation of Pertuso Spring discharge, located in Central Italy. New collected data confirmed the validity of the proposed model and the conservative behaviour of Mg²⁺ for groundwater related to the Pertuso Spring aquifer. Further analysis allowed to obtain a local linear re ...
DOI:
10.3390/w13010093

16. Seasonal to Decadal Variability in Focused Groundwater and Contaminant Discharge along a Channelized Stream

Author:
Tripathi, Ganesh N.; Fryar, Alan E.; Hampson, Steven K.; Mukherjee, Abhijit
Source:
Ground water monitoring & remediation 2021 v.41 no.1 pp. 32-45
ISSN:
1069-3629
Subject:
spring; springs (water),   etc   ; base flow; dyes; groundwater; hyporheic zone; remediation; seasonal variation; stream channels; summer; winter;     Show all 11 Subjects
Abstract:
... Focused groundwater discharge to streams is problematic at contaminated sites because high fluxes can limit natural attenuation in the hyporheic zone. However, information on location, spatial evolution, and temporal persistence of springs in unlithified sediments over multiyear time scales is limited. We examine discharge at point (~1‐m) to reach (~300‐m) scales along a stream that intercepts tri ...
DOI:
10.1111/gwmr.12422

17. Effect of Row Spacing and Seeding Rate on Russian Thistle (Salsola tragus) in Spring Barley and Spring Wheat

Author:
Barroso, Judit; Genna, Nicholas G.
Source:
Plants 2021 v.10 no.1
ISSN:
2223-7747
Subject:
spring; spring barley; spring wheat,   etc   ; Oregon; Salsola tragus; administrative management; crop yield; crops; farmers; mortality; phytomass; planting; pressure; rain; row spacing; weeds;     Show all 16 Subjects
Abstract:
... Russian thistle (Salsola tragus L.) is a persistent post-harvest issue in the Pacific Northwest (PNW). Farmers need more integrated management strategies to control it. Russian thistle emergence, mortality, plant biomass, seed production, and crop yield were evaluated in spring wheat and spring barley planted in 18- or 36-cm row spacing and seeded at 73 or 140 kg ha⁻¹ in Pendleton and Moro, Oregon ...
DOI:
10.3390/plants10010126

18. Houstonia micrantha in Georgia: Ecological and morphological observations

Author:
Wyatt, Robert; Stoneburner, Ann
Source:
TheJournal of the Torrey Botanical Society 2020 v.147 no.4 pp. 381-388
ISSN:
1940-0616
Subject:
spring,   etc   ; Houstonia; Georgia;     Show all 3 Subjects
Abstract:
... The geographical range of the species now known as Houstonia micrantha has been uncertain, in part because of taxonomic confusion with its sister species, Houstonia pusilla. Previously believed to be restricted to two counties in eastern and central Georgia, it is now apparent that this homostylous winter annual is much more widespread. In fact, its recent spread and its enormous potential to mult ...
DOI:
10.3159/TORREY-D-20-00022.1

19. Steel work design and analysis of a 40-ton constant temperature hydraulic press

Author:
Okolie, Paul Chukwulozie; Obika, Echezona Nnaemeka; Oluwadare, Benjamin Segun; Ezenwa, Obiora Nnaemeka; Udensi, Chinedu Stanley
Source:
Heliyon 2020 v.6 no.9 pp. e04783
ISSN:
2405-8440
Subject:
spring,   etc   ; steel; temperature;     Show all 3 Subjects
Abstract:
... This study presented the analyses of the design and construction of a motorized 40-ton constant temperature hydraulic press, for constant temperature compression purposes of fibre matrices. Standard design considerations and calculations were done to ensure the selection of effective and efficient components for the development of the machine. The construction of the machine involved standard manu ...
DOI:
10.1016/j.heliyon.2020.e04783

20. Seasonal response of night-breaking on floral bud formation in red pitaya (Hylocereus sp.) in a noninductive period

Author:
Jiang, Yi-Lu
Source:
Scientia horticulturae 2020 v.270 pp. 109420
ISSN:
0304-4238
Subject:
spring,   etc   ; Hylocereus; autumn;     Show all 3 Subjects
Abstract:
... Off-season flowering in red pitaya (Hylocereus sp.) can be achieved by night-breaking (NB) with artificial light in a noninductive season. To ensure abundant flowering, 4–6 h of NB is applied and often resulted in over flowering. This study compared the effects of four NB durations (4 h [2200–0200HR], 2 h [2300–0100HR], 1 h [2330–0030HR], and 0.5 h [2345–0015HR]) on floral bud formation in late au ...
DOI:
10.1016/j.scienta.2020.109420