bluuebunny/crossref_metadata_2025_split huggingface dataset:
Prioritizing Conservation of Coastal Ponds for Wintering Redheads
Authors: Ballard Bart M. , Lange Corey J. , James J. Dale , Wilson Barry C. , Collins Daniel P. , Vonbank Jay A. 
Published: April 2021

ABSTRACTThe Laguna Madres of Texas, USA, and Tamaulipas, Mexico, are the most important wintering areas for redheads (Aythya americana) as most of the continental population winters in these lagoons. Redheads forage in the saline waters of the Laguna Madre and make daily flights to coastal freshwater ponds on the adjacent mainland to drink. The abundance and spatial distribution of coastal ponds varies depending on precipitation and can influence the foraging pressure on adjacent seagrass meadows. We conducted weekly aerial surveys to monitor coastal pond use by wintering redheads from mid‐October through mid‐March along the entire length of the Laguna Madre of Texas, during 2000–2003 and in 2012–2014. We developed 3 parameters to provide a measure of biological value of each coastal pond to redheads: amount of foraging habitat within 10 km of each pond, water permanence of the pond, and the potential to distribute redheads if inundated. During 101 aerial surveys across 5 years of study, we identified 140 coastal ponds that were used by redheads. We developed a prioritization scheme to identify wetlands that remain inundated in all years and targeted them for conservation protection. We identified those coastal ponds that, if enhanced through increasing their water permanence, would provide additional drinking sites during dry years and help distribute redheads on more foraging habitat, thereby reducing potential overgrazing on seagrass meadows. We identified 3,624 ha of foraging habitat (21.5% of all foraging habitat) in the lower Laguna Madre that had no coastal ponds within a 10‐km radius and, thus, was proximal to potential areas for coastal pond creation. Our results provide guidance for resource managers to protect, enhance, or create coastal ponds to reduce foraging pressure on seagrass meadows in the Laguna Madre and help sustain future populations of wintering redheads. © 2021 The Wildlife Society.
Analysis of sediment accessibility and availability concepts based on sediment connectivity throughout a watershed
Authors: Najafi Saeed , Sadeghi Seyed Hamidreza , Heckmann Tobias 
Published: April 2021

AbstractThe identification of the degree of linkage between sediment source and sink areas and also the channel network allows for prioritizing areas for sediment control measures at the watershed scale. The present study was therefore planned to investigate sediment connectivity based on structural and functional aspects. To that end, the index of connectivity (IC) and sediment delivery ratio (SDR), respectively, were calculated based on the approaches of Borselli, Cassi, & Torri (2008) and a sediment contribution area (SCA) representing structural and functional sediment indices of connectivity. Results showed that high structural connectivity in an area does not necessarily result in high transportation of sediment, since structural connectivity only reflects the potential for sediment transfer between specific source and sink areas. We name this potential movement as sediment accessibility. Meanwhile, high functional sediment connectivity occurs only where soil erosion processes are actively eroding sediment, and consequently we name this condition as sediment availability. Therefore, four sediment connectivity states can occur: (a) sediment availability and sediment accessibility (SASA); (b) sediment availability and sediment inaccessibility (SASIA); (c) sediment unavailability and sediment accessibility (SUASA); and (d) sediment unavailability and sediment inaccessibility (SUASIA). From the application of this concept in the Taham representative watershed in Zanjan Province, Iran, there was a consistency between both structural and functional connectivity in seven subwatersheds within the study area, with one exception with higher sediment availability than sediment accessibility. Such information in combination with a sediment fingerprinting approach assists managers to plan appropriate approaches for achieving the desired sediment (dis)connectivity.
Historical review of faba bean improvement in western Canada
Authors: Khazaei Hamid , Hawkins Glen , Vandenberg Albert 
Published: April 2021

AbstractFaba bean (Vicia faba L.) was considered a minor crop in the Canadian prairies until recently, but its potential for cultivation is increasing due to its positive environmental impact and economic value. This review provides a historical summary of faba bean improvement in western Canada. Although traditional breeding methods have proved useful, in the last decade, faba bean improvement has benefited from advances in genetics, biochemistry and molecular breeding tools. The overall breeding goal is to develop high yielding germplasm with improved agronomic characteristics that will be of economic value to the emerging faba bean sectors, including the plant protein industry. To maximize value and acceptance by producers, processors and the food industry as a source of protein and dietary fibre, future faba bean varieties need to be high‐yielding, have diverse seed size classes, disease resistance, genetically low vicine–convicine concentration, and have wider adaptation to different agro‐ecological zones of Canada. The experiences over the last 40 years of faba bean improvement in western Canada may be useful to other breeding programmes globally located in regions with similar agroecology. In the past 10–15 years, faba bean genetic development in Canada has benefited greatly from research and development interactions with most of the faba bean research programmes in northern Europe.
Clinical heterogeneity and intrafamilial variability of Joubert syndrome in two siblings with CPLANE1 variants
Authors: Zhang Xiujuan , Shen Yue , Li Ping , Cai Ruikun , Lu Chao , Li Qian , Chen Cuixia , Yu Yufei , Cheng Tingting , Wang Xian , Luo Minna , Cao Muqing , Cao Zongfu , Ma Xu 
Published: April 2021

AbstractBackgroundJoubert syndrome (JBTS) is a rare genetic disorder that is characterized by midbrain‐hindbrain malformations. Multiple variants in genes that affect ciliary function contribute to the genetic and clinical heterogeneity of JBTS and its subtypes. However, the correlation between genotype and phenotype has not been elucidated due to the limited number of patients available.MethodsIn this study, we observed different clinical features in two siblings from the same family. The older sibling was classified as a pure JBTS patient, whereas her younger sibling displayed oral‐facial‐digital defects and was therefore classified as an oral‐facial‐digital syndrome type VI (OFD VI) patient. Next, we performed human genetic tests to identify the potential pathogenic variants in the two siblings.ResultsGenetic sequencing indicated that both siblings harbored compound heterozygous variants of a missense variant (c.1067C>T, p.S356F) and a frameshift variant (c.8377_8378del, p.E2793Lfs*24) in CPLANE1 (NM_023073.3).ConclusionThis study reports that two novel CPLANE1 variants are associated with the occurrence of JBTS and OFD VI. These results help elucidate the intrafamilial phenotypic variability associated with CPLANE1 variants.
Long‐term behavioral effects observed in mice chronically exposed to static ultra‐high magnetic fields
Authors: Tkáč Ivan , Benneyworth Michael A. , Nichols‐Meade Tessa , Steuer Elizabeth L. , Larson Sarah N. , Metzger Gregory J. , Uğurbil Kâmil 
Published: April 2021

PurposeThe primary goal of this study was to investigate whether chronic exposures to ultra‐high B0 fields can induce long‐term cognitive, behavioral, or biological changes in C57BL/6 mice.MethodsC57BL/6 mice were chronically exposed to 10.5‐T or 16.4‐T magnetic fields (3‐h exposures, two exposure sessions per week, 4 or 8 weeks of exposure). In vivo single‐voxel 1H magnetic resonance spectroscopy was used to investigate possible neurochemical changes in the hippocampus. In addition, a battery of behavioral tests, including the Morris water‐maze, balance‐beam, rotarod, and fear‐conditioning tests, were used to examine long‐term changes induced by B0 exposures.ResultsHippocampal neurochemical profile, cognitive, and basic motor functions were not impaired by chronic magnetic field exposures. However, the balance‐beam–walking test and the Morris water‐maze testing revealed B0‐induced changes in motor coordination and balance. The tight‐circling locomotor behavior during Morris water‐maze tests was found as the most sensitive factor indexing B0‐induced changes. Long‐term behavioral changes were observed days or even weeks subsequent to the last B0 exposure at 16.4 T but not at 10.5 T. Fast motion of mice in and out of the 16.4‐T magnet was not sufficient to induce such changes.ConclusionObserved results suggest that the chronic exposure to a magnetic field as high as 16.4 T may result in long‐term impairment of the vestibular system in mice. Although observation of mice may not directly translate to humans, nevertheless, they indicate that studies focused on human safety at very high magnetic fields are necessary.
Multidisciplinary effort to improve the diagnosis of malnutrition in hospitalized patients
Authors: Quartarolo Jennifer , Dolopo Analyn , Richard Byron 
Published: April 2021

AbstractMalnutrition has been increasingly demonstrated to be common and underrecognized in hospitalized patients. Rates have been demonstrated as high as 55%, but the diagnosis of malnutrition has historically been made in only a minority of inpatients. Laboratory studies, including serum prealbumin level, have been shown to have poor predictive value of malnutrition. In 2014, our institution embarked on a system‐wide effort to improve diagnosis of malnutrition in hospitalized patients. We adopted the Academy of Nutrition and Dietetics/American Society for Parenteral and Enteral Nutrition (AND/ASPEN) Clinical Characteristics and implemented the Nutrition‐Focused Physical Exam/Assessment into clinical practice. Dietitians recorded malnutrition diagnoses in a flow sheet in the electronic medical record (EMR) and alerted the primary team when a patient met criteria for malnutrition. An editable link to malnutrition diagnosis was created in the discharge summary templates in the EMR. Over 4 years, these efforts led to an increase in our rate of diagnosis of malnutrition from 6% to 12%, which was sustained over the last 2 years. We also found that the percentage of inpatients having serum prealbumin levels checked decreased from 13% to 8% over the study period. We found that a system‐wide, stepwise approach to improving our diagnosis of inpatients with malnutrition was effective and appears sustainable over the period studied. We noted a behavior change for providers in both documenting the condition and decreasing their utilization of laboratory studies as part of their clinical diagnostic workup, thus avoiding unnecessary laboratory draws and leading to potential cost saving.
A meta‐analysis on predictors of turnover intention of hospital nurses in South Korea (2000–2020)
Authors: Kim Hyeoneui , Kim Eun Gyung 
Published: April 2021

AbstractAimsTo identify the predictors of Registered Nurses’ turnover intention and analyse the effect sizes.DesignA systematic review and meta‐analysis of previous research, conducted to comprehensively identify the predictors of turnover intention.MethodsIn total, 417 studies from 1 January 2000 to 30 April 2020 that investigated predictors of turnover intention of South Korean nurses were reviewed. The data were analysed using the R statistical package. Network graphs were used to analyse the relationships among turnover predictors, and meta‐analysis was performed to determine the effect sizes of the correlations.ResultsThis review analysed common predictors identified in previous studies. Burnout (0.541), emotional exhaustion (0.511), job stress (0.390) and career plateau (0.386) showed positive effect sizes, while organizational commitment (−0.540), person−organizational fit (−0.521), career commitment (−0.508), work engagement (−0.503), job satisfaction (−0.491) and job embeddedness (−0.483) showed negative effect sizes.
Methodological considerations for the design and implementation of a fully longitudinal mixed methods study
Authors: Schumacher Karen L. , Plano Clark Vicki L. , Eilers June , Kigondu Naomi , Geary Carol , Kupzyk Kevin , Lydiatt William M. , Lackner Rudy P. , Ly Quan 
Published: April 2021

AbstractGrowing interest is evident in longitudinal mixed methods research, particularly fully longitudinal mixed methods designs in which both quantitative and qualitative data are collected concurrently for the duration of the study. Fully longitudinal mixed methods designs are particularly relevant for research on dynamic phenomena because of their ability to illuminate both quantitative and qualitative dimensions of change in real time as the phenomenon of interest changes. However, these are complex research designs and their data‐intense nature makes them potentially burdensome for study participants, challenging for research teams, and costly for funding agencies. Despite growing use, the methodological literature on fully longitudinal mixed methods research is sparse and little guidance is available for researchers considering this approach. We address this gap by describing our experience with the design and implementation of a fully longitudinal mixed methods study of a dynamic phenomenon, namely, family caregiving during cancer treatment. We describe important questions and key decisions confronted while developing the research proposal, proactive strategies for study implementation, and implementation realities encountered while the study was in progress. On the basis of insights gained through real‐world experience, we offer three guiding principles for researchers undertaking such a study. First, align the study design with the nature of the dynamics in the phenomenon of interest. Second, plan from the start when and how the integration of the longitudinal quantitative and qualitative data will occur. Third, employ implementation strategies that take into account the practical aspects of repeated contacts with study participants for an extended period.
There's no place like home: Exploring sexual and gender diverse youth's outcomes related to urban/nonurban settings, opted consent procedure, and social support
Authors: Kiperman Sarah , Saint Jo 
Published: April 2021

AbstractThis study uses the minority stress model to examine the relationship between sexual and gender diverse youth's (SGDY's) emotional and peer problem outcomes with their school setting (i.e., attending school in an urban or nonurban setting) and consent type (i.e., parental/guardian or waived consent). The study also explores how social support can alter these relationships as a protective factor. The instruments used to collect data were self‐report and included the Child and Adolescent Social Support Scale and the Strengths and Difficulties Questionnaire. Results indicated that more youth in nonurban settings experienced emotional and peer problems compared to those in urban settings, and youth who opted for waived consent endorsed fewer emotional and peer problems compared to youth who opted for parental/guardian consent. When controlling for social support, the consent procedure and school setting variables lost significance. Implications for school psychologists are reviewed.
Teacher empathy and students with problem behaviors: Examining teachers' perceptions, responses, relationships, and burnout
Authors: Wink Mackenzie N. , LaRusso Maria D. , Smith Rhiannon L. 
Published: April 2021

AbstractManaging students' problem behaviors in the classroom is a difficult challenge for many teachers. A teacher's ability to empathize with students' perspectives and life experiences could impact their approach to the student's problem behaviors; however, few previous studies examine teacher empathy. This study adapted an existing empathy measure to assess educators' cognitive and affective empathy for students. Participants were elementary school teachers (N = 178) who reported on their levels of empathy and completed measures of teacher‐student relationships, student behaviors, and approaches to handling behaviors for their self‐reported most challenging student. Results indicated the adapted measure reliably assessed teachers' cognitive empathy and an affective form of empathy characterized as empathic distress (experiencing personal distress from others' distress). Teachers higher in cognitive empathy reported more positive mindsets about student behavior, greater competence in handling problem behaviors, increased use of effective problem‐solving strategies, greater relationship closeness, and lower levels of job burnout. Teachers high in empathic distress showed largely opposite findings, with more negative misbehavior mindsets, greater relationship conflict, less competence, fewer problem‐solving strategies, and higher job burnout. These findings have implications for supporting teachers to effectively intervene and build positive relationships with behaviorally challenging students.
Water stress assessment on grapevines by using classification and regression trees
Authors: Sánchez‐Ortiz Antoni , Mateo‐Sanz Josep M. , Nadal Montserrat , Lampreave Míriam 
Published: April 2021

AbstractMultiple factors, such as the vineyard environment and winemaking practices, are known to affect the development of vines as well as the final composition of grapes. Water stress promotes the synthesis of phenols and is associated with grape quality as long as it does not inhibit production. To identify the key parameters for managing water stress and grape quality, multivariate statistical analysis is essential. Classification and regression trees are methods for constructing prediction models from data, especially when data are complex and when constructing a single global model is difficult and models are challenging to interpret. The models were obtained by recursively partitioning the data space and fitting a simple prediction model within each partition. The partitioning can be represented graphically as a decision tree. This approach permitted the most decisive variables for predicting the most vulnerable vineyards and wine quality parameters associated with water stress. In Priorat AOC, Carignan grapevines had the highest water potential and abscisic acid concentration in the early growth plant stages and permitted vineyards to be classified by mesoclimate. This information is useful for identifying which measurements could most easily differentiate between early and late‐ripening vineyards. LWP and Ts during an early physiological stage (pea size) permitted warm and cold areas to be differentiated.
Estimating the stability and reactivity of novel bicyclic germylenes at density functional theory
Authors: Abedini Nastaran , Kassaee Mohamad Z. 
Published: April 2021

AbstractThe effects of nitrogen substituent on stability (ΔΕs–t) of novel germylenes with one, two, and three germylene centers are compared and contrasted at B3LYP/6‐311++G** level of theory. These singlet and triplet germylenes (1s–18s and 1t–18t, respectively) appear as minimum on its energy surface, and the order of their stability estimated by singlet (s)–triplet (t) energy difference (ΔEs–t = Et − Es) is 16 > 6 > 1 > 15 > 17 > 2 > 8 > 3 > 9 > 11 > 7 > 10 > 12 > 14 > 5 > 4 > 18 > 13. Hence, every singlet germylene shows more stability than its corresponding triplet. Germylene 13 with the lowest stability (ΔEs–t = 4.31 kcal/mol) has the highest nucleophilicity (4.47 eV).Applying suitable isodesmic reactions, we show that the σ‐acceptor nitrogen substituents stabilize not only the singlet but also the triplet states with their positive ΔE. The aim of the present work is to recognize the influence of nitrogen and germylene centers on the stability and band gap (ΔΕHOMO–LUMO), electrophilicity (ω), nucleophilicity (N), and etc. They can be used as accumulated multidentate ligands.
Oligo(ethylene imine)‐grafted glycidyl methacrylate linear and star homopolymers: Odd–even correlated transfection efficiency
Authors: Pafiti Kyriaki S. , Kepola Eleni J. , Vlasiou Manolis C. , Yamasaki Edna N. , Patrickios Costas S. , Mastroyiannopoulos Nikolaos P. , Phylactou Leonidas A. , Théato Patrick 
Published: April 2021

AbstractThe present study aims to investigate an odd–even effect of the number of ethylene imine units in the side‐groups of totally abiotic synthetic polymers on their efficiency in DNA transfection. A library of fifteen polymers was fabricated. Two star homopolymers and one linear homopolymer based on glycidyl methacrylate were synthesized and used as precursors to which five linear oligo(ethylene imine)s (OEI) were grafted. The number of ethylene imine groups of the OEIs was varied. Specifically, ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, and pentaethylene hexamine were used. Each of these fifteen OEI‐grafted polymers was evaluated in terms of their efficiency to transfer plasmid DNA encoding firefly luciferase in C2C12 mouse myoblast cells. The transfection efficiency displayed an odd‐even pattern, with all OEI‐grafted polymers with an odd number of ethylene imine repeating units exhibiting higher transfection efficiency compared with those possessing an even number of ethylene imine repeating units. The odd–even effect was more pronounced for the star polymers with longer arms (degree of polymerization, DP = 100), while in case of the linear polymers, the odd–even effect was only observed for the lowest polymer loading. The cytotoxicity of the OEI‐grafted polymers also followed an odd–even pattern, with the OEI‐grafted star polymers with an arm DP of 100 and the linear polymers clearly presenting an odd‐even effect, while the cytotoxicity of the OEI‐grafted star polymers with an arm DP of 20 slightly increased with the number of ethylene imine repeating units.
Airflow dispersion during common neonatal resuscitation procedures: A simulation study
Authors: Kwok T'ng Chang , Swaby Rabbi , Sharkey Don 
Published: April 2021

AbstractBackgroundAerosol generating medical procedures (AGMPs) are common during newborn resuscitation. Neonates with respiratory viruses such as severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) infection may pose a risk to healthcare workers. International guidelines differ on methods to minimize the risk due to limited data.ObjectiveWe examined the expiratory airflow dispersion during common neonatal resuscitation AGMPs using infant simulators.MethodsExpiratory airflow dispersion in term and preterm manikins was simulated (n = 288) using fine particle smoke at tidal volumes of 5 ml/kg. Using ImageJ, we quantified dispersion during common airway procedures including endotracheal tube (ETT) and T‐piece ventilation.ResultsMaximal expiratory dispersion distances for the unsupported airway and disconnected uncuffed ETT scenarios were 30.2 and 22.7 cm (term); 22.1 and 17.2 cm (preterm), respectively. Applying T‐piece positive end expiratory pressure (PEEP) via an ETT (ETTPEEP) generated no expiratory dispersion but increased tube leak during term simulation, while ventilation breaths (ETTVENT) caused significant expiratory dispersion and leak. There was no measurable dispersion during face mask ventilation. For term uncuffed ETT ventilation, the particle filter eliminated expiratory dispersion but increased leak. No expiratory dispersion and negligible leak were observed when combining a cuffed ETT and filter. Angulated T‐pieces generated the greatest median dispersion distances of 35.8 cm (ETTPEEP) and 23.3 cm (ETTVENT).ConclusionsAirflow dispersion during neonatal AGMPs is greater than previously postulated and potentially could contaminate healthcare providers during resuscitation of infants infected with contagious viruses such as SARS‐CoV‐2. It is possible to mitigate this risk using particle filters and cuffed ETTs. Applicability in the clinical setting requires further evaluation.