bluuebunny/crossref_metadata_2025_split huggingface dataset:
Design and Performance of an Experimental Cooled Perch System for Heat Stress Relief of Laying Hens
Authors: Xiong Yijie , Gates Richard S. , Hu Jiaying , Hester Patricia Y. , Cheng Heng-wei 
Published: August 2020

This article summarizes the design and performance of a cooled perch system for laying hens during heat stress.Water flow rates, perch loop water temperatures, and system net heat gain are provided.The average daily net heat absorption data, useful for sizing thermal water storage and chiller capacity in future applications, is 256 W m-1 perch length, or 43.2 W per hen housed.This analysis provides a baseline for future cooled perch system design in other application settings.Abstract. This article summarizes the engineering design and performance of a cooled perch system used in a multi-year collaborative study to evaluate cooled perch effects on hen production, health, and welfare during heat stress. The cooled perch system consisted of two replicates (CP-1 and CP-2) of three-tier cage units with galvanized perch pipes forming a complete loop in each tier (top, middle, bottom) in which chilled water circulated. A total of 324 White Leghorns at 17 weeks of age were randomly assigned to 36 cages (76 cm × 52 cm × 48 cm) in six banks placed in the same room. Flow for each loop was provided by loop pumps that drew chilled water from an open thermal storage manifold and returned it to the same manifold. Each thermal storage was cooled by continuously circulating water through a water chiller. Each loop pump was thermostatically controlled based on the cage air temperature. The water inlet and outlet temperatures, cage air temperatures, and loop water flow rates during stable system operation were measured for performance evaluation. Mean water flow rates in 2015 were 5.19 and 5.45 kg min-1 for CP-1 and CP-2, respectively, but significantly declined to 3.91 and 4.03 kg min-1 in 2016. The mean loop water temperature rise was about 2°C for both replicates. The mean loop net heat gain of CP-1 and CP-2 ranged from 690 to 850 W and from 551 to 1,298 W, respectively, with a significant difference between CP-2 loops (p &lt; 0.0001), indicating a discrepancy between the manufacturer’s pump curve and field performance. There was a correlation between room air temperature and net heat gain for all loops of CP-1 and the top loop of CP-2 (p &lt; 0.0001), suggesting that natural convection and radiation from the room to the pipe were the major contributors to loop heat gain. The average daily net heat gain was approximately 2,334 W per replicate, 256 W m-1 perch length, or 43.2 W per hen housed. This analysis provides a baseline for future cooled perch system design in other application settings. An example is provided for sizing the thermal water storage and chiller capacity. In addition, a closed water system with a properly sized expansion tank is recommended for future energy-efficient cooled perch applications. Keywords: Alternative cooling, Heat stress, Heat transfer, Poultry.
Endoscopic Ultrasound-Guided Drainage of Intramural Duodenal Abscess Caused by Foreign Body Ingestion
Authors: Ricardo Juan , Alkayali Talal , Wojtkowski Antoni , Busari Kafayat , Okanobo Heitor , Kucera Stephen 
Published: August 2020

ABSTRACT
A 63-year-old man presented with fever and generalized weakness for 2 days. Computed tomography scan showed an intramural duodenal abscess and a linear radiolucent foreign body penetrating the duodenal wall. Endoscopic drainage was performed. Endoscopic ultrasound showed fluid collection in the second portion of the duodenum. The duodenal lumen was punctured with the creation of stoma using a lumen-apposing metal stent and electrocautery system. The stent was deployed, and the drainage of purulent fluid followed. The foreign body was suspected to be a wire brush bristle. The patient received intravenous antibiotics for 14 days. Follow-up images showed the resolution of the abscess.
Diversity of social, economic and production implications of maize systems in Mexico
Authors: Ibarrola-Rivas Maria Jose , Castillo Guillermo , González Jorge 
Published: August 2020

En México coexiste una diversidad de sistemas de producción agrícolas, desde campesinos basados en auto-subsistencia, hasta agronegocios industriales. Esto implica una heterogeneidad de características socioculturales, tecnológicas y económicas. Este artículo analiza tres sistemas de producción de maíz: pequeño (< 2 ha por productor), mediano (5-10 ha), y de gran escala (>50 ha). Con base en los microdatos de la Encuesta Nacional Agropecuaria 2014 y mediante la agregación de información a nivel nacional y estatal, se analizaron tendencias y diferencias entre estos tres sistemas en relación con tres ejes: (1) Características socioeconómicas (uso para venta y subsistencia, tenencia de la tierra, tipo de semilla y trabajo familiar); (2) Tecnología agrícola (rendimientos, irrigación, agroquímicos y tipo mano de obra); (3) Características económicas (programas gubernamentales, seguros, créditos y costos de producción). Los resultados demuestran que algunas de estas características son intrínsecas a cierto tipo de sistema de producción, pero, también, que algunas otras difieren de los patrones descritos en estudios previos. Particularmente destacan dos procesos. (1) El porcentaje del área que usa agroquímicos para los tres sistemas es muy similar, y se esperaba que los grandes productores tuvieran más uso de agroquímicos. (2) Una proporción relativamente grande de los sistemas de gran escala (22%) tienen tenencia social de la tierra (ejidos), aunque estos productores también se relacionan claramente con tenencias de la tierra privada. Asimismo, estas tendencias tienen desviaciones a nivel regional. Los resultados sustentan la necesidad de enfoques interdisciplinarios y multiescalares para diseñar políticas estratégicas destinadas a los sistemas agropecuarios.
Retraction
Authors: International ASTM 
Published: August 2020

Abstract
Original Article Title: Existence of k-People Stable Alliance in n-Player Cooperative Games
Authors: Zheng Tao,1 Yuanwei Hu,2 Ziyi Pan,2 Junyi Zhao,2 and Dongao Xing2
This article has been retracted upon request from the authors due to errors they found in the conclusions.
ASTM International
February 2022
Isolation, Screening and Identification of Plant Growth-Promoting Endophytic Bacteria from Theobroma cacao
Authors: Simarmata Rumella , Widowati Tiwit , Dewi Tirta Kumala , Lekatompessy Sylvia J. R. , Antonius Sarjiya 
Published: August 2020

Cacao (Theobrama cacao) is one of the main plantation commodities in Indonesia which has an important role for the national economy. The low productivity of cacao plants in Indonesia is due to the condition of old plants, pests and diseases attacks which affect the quality of the fruit and decrease the plant’s productivity. The objective of this study was to isolate and identify of endophytic bacteria from stem, flower, leaf and fruit of T. cacao by using 16S rRNA gene as genetic marker. Twenty seven endophytic bacterial isolates were collected from local plantation in Yogyakarta area. From this study, 8 endophytic bacterial strains exhibited the higher PGP traits. The isolates produced Indole Acetic Acid level by 0.3 to 5.21 ppm/hour. All of isolates had nitrogen fixation activity but have not phosphate solubilization activity. Among them, isolates CSDT 4 and CGKBH 4 showed promising potential as PGP bacteria. Based on the 16S rRNA gene sequences, those bacterial strains were identified as Brevibacillus brevis (CSDT 4) and Pantoea sp. (CGKBH 4). We propose that the B. brevis and Pantoea sp. which is reported for the first time for their PGP potential in cacao, exerts its beneficial effects on cacao crop through combined of activities. The potential PGP bacteria from the Cacao plant was used to make a specific bio-fertilizer formula for the Cacao plant, because of the different needs and condition that every plant requires.
Plant Species Diversity and Degree of Homogeneity after the 2010 Eruption of Mount Merapi, Indonesia
Authors: Afrianto Whisnu Febry , Hikmat Agus , Widyatmoko Didik 
Published: August 2020

The eruption in 2010 of Merapi Mount changed the diversity of plant species. The objective of this research was to investigate the diversity of plant species on Mount Merapi National Park (MMNP). The sampling area was divided into three different levels of damage (heavy, medium, and mirror). The research was conducted by using line-transect and quadrat method. We were conducted using line-transect and quadrat method. The research showed that Acacia decurrens has the highest Important Value Index (IVI) at the heavy damage area of Cangkringan Resort (CR) and Kemalang Resort (KR) as well as in mirror damage area of Selo Resort (SR). The most important species at medium damage area of Dukun Resort (DR) were Albizia lopantha and Pinus merkusii. The pioneer species at Non-Cover Area (NCA) among others were Trema cannabina, Pityrogramma calomelanos, Imperata cylindrical, Buddleja asiatica, Anaphalis javanica. Eupatorium riparium were the most important species of herb in all four locations based on SIMPER, but it was not dominant in NCA. The homogeneity of plant in Cangkringan Resort and Selo Resort (C < D < E) were normally distributed, whereas NCA, DR, and KR (E ≥ D) were homogeneous. Analysis of non-metric multidimensional scaling and value of ANOSIM (RANOSIM =0.69; p = 0.0001) demonstrated that all site locations have significance differences. This research was not only focusing on survey of vegetation diversity, but also frequency class distribution. Through this study of frequency of species provides a database for conservation biodiversity and restoration program.
La filosofía de la liberación como filosofía del pueblo. La experiencia del grupo argentino: la línea Kusch, Cullen, Scannone
Authors: Fresia Iván Ariel 
Published: August 2020

La filosofía latinoamericana de la liberación en sus orígenes consideró la importancia del pueblo, lo popular, la cultura y los pobres. Aun con discusiones y divergencias en el interior del movimiento -a raíz de las diferentes concepciones filosóficas y políticas- pueblo-clase, pueblo-nación, pueblo-sectores populares estuvo presente en la producción de muchos de sus autores. Todos asumieron la cuestión del pueblo, pero ninguno apostó en denominar tal filosofía de la liberación como “filosofía del pueblo”. Cuestión que no dudaron en asumir, en cambio, cuando la producción teológica latinoamericana producida en Argentina fue denominada como “teología del pueblo”, primero despectivamente y posteriormente como nombre propio y nota característica. Es más, Scannone incluso consideró que era adecuado nombrar como “ético cultural” a la corriente filosófica inspirada en la sabiduría popular por él representada, pero difícilmente hubiera admitido que se denominara su filosofía inculturada de la liberación como “del pueblo”.
Recombinational Repair of Nuclease-Generated Mitotic Double-Strand Breaks with Different End Structures in Yeast
Authors: Gamble Dionna , Shaltz Samantha , Jinks-Robertson Sue 
Published: August 2020

AbstractMitotic recombination is the predominant mechanism for repairing double-strand breaks in Saccharomyces cerevisiae. Current recombination models are largely based on studies utilizing the enzyme I-SceI or HO to create a site-specific break, each of which generates broken ends with 3′ overhangs. In this study sequence-diverged ectopic substrates were used to assess whether the frequent Pol δ-mediated removal of a mismatch 8 nucleotides from a 3′ end affects recombination outcomes and whether the presence of a 3′ vs. 5′ overhang at the break site alters outcomes. Recombination outcomes monitored were the distributions of recombination products into crossovers vs. noncrossovers, and the position/length of transferred sequence (heteroduplex DNA) in noncrossover products. A terminal mismatch that was 22 nucleotides from the 3′ end was rarely removed and the greater distance from the end did not affect recombination outcomes. To determine whether the recombinational repair of breaks with 3′ vs. 5′ overhangs differs, we compared the well-studied 3′ overhang created by I-SceI to a 5′ overhang created by a ZFN (Zinc Finger Nuclease). Initiation with the ZFN yielded more recombinants, consistent with more efficient cleavage and potentially faster repair rate relative to I-SceI. While there were proportionally more COs among ZFN- than I-SceI-initiated events, NCOs in the two systems were indistinguishable in terms of the extent of strand transfer. These data demonstrate that the method of DSB induction and the resulting differences in end polarity have little effect on mitotic recombination outcomes despite potential differences in repair rate.
Detecting and Quantifying Natural Selection at Two Linked Loci from Time Series Data of Allele Frequencies with Forward-in-Time Simulations
Authors: He Zhangyi , Dai Xiaoyang , Beaumont Mark , Yu Feng 
Published: August 2020

Abstract
Recent advances in DNA sequencing techniques have made it possible to monitor genomes in great detail over time. This improvement provides an opportunity for us to study natural selection based on time serial samples of genomes while accounting for genetic recombination effect and local linkage information. Such time series genomic data allow for more accurate estimation of population genetic parameters and hypothesis testing on the recent action of natural selection. In this work, we develop a novel Bayesian statistical framework for inferring natural selection at a pair of linked loci by capitalising on the temporal aspect of DNA data with the additional flexibility of modeling the sampled chromosomes that contain unknown alleles. Our approach is built on a hidden Markov model where the underlying process is a two-locus Wright-Fisher diffusion with selection, which enables us to explicitly model genetic recombination and local linkage. The posterior probability distribution for selection coefficients is computed by applying the particle marginal Metropolis-Hastings algorithm, which allows us to efficiently calculate the likelihood. We evaluate the performance of our Bayesian inference procedure through extensive simulations, showing that our approach can deliver accurate estimates of selection coefficients, and the addition of genetic recombination and local linkage brings about significant improvement in the inference of natural selection. We also illustrate the utility of our method on real data with an application to ancient DNA data associated with white spotting patterns in horses.
Experimental study of phase entrainment in copper solvent extraction
Authors: Navarro Donoso Patricio , Vargas Riquelme Cristian , Castillo Jonathan , Sepúlveda Rossana 
Published: August 2020

The entrainment of the organic phase in the aqueous applied to typical solutions in a solvent extraction of copper process was studied. The organic phase used is composed of the commercial extractant LIX 984-N diluted in Shellsol 2046 AR. The aqueous phase contains 6 g/L of Cu2+, at pH 2 and 20 ºC. The variables studied were: mixing speed of 400 to 1000 rpm; mixing time of 3 to 30 minutes; initial pH of the electrolyte 2, 3, and 4; percentage of extractant in the organic phase 10 to 30% v/v; and copper concentration in the aqueous phase 1 to 6 g/L. It was determined that the entrainment of the organic phase in the aqueous is determined by the physical properties of the phases in equilibrium and by the system’s hydrodynamics, and it is a phenomenon that involves the advancing speed of the interphase (or dispersion band) and the displacement speed of the organic drops.
Major Factors Associated with Congenital Malformations in the Agadir Region of Morocco
Authors: EL MADIDI SAID 
Published: August 2020

Introduction: Congenital malformations are a global health problem around the world. MCs is one of the main causes of death and disability of newborns worldwide, but the majority of its risk factors are still poorly understood.
Objective: The aim of this study is to determine the main causes that are related to the incidence of congenital malformations (CMs) in the region of Agadir in Morocco.
Material and Methods: A prospective cases-control study at regional level was conducted in the pediatrics and neonatology department of Hassan II hospital in Agadir from April 2016 to April 2018. Data on child and maternal variables were recorded for 3701 newborns. The types of congenital malformations have been classified according to the codes of the International Classification of Diseases. Univariate analyzes were performed to identify the variables associated with the etiology of the malformations. Multiple logistic regression was used to characterize the associations between the MC and the determining explanatory variables taken into account simultaneously.
Results: The results of these studies showed that there is a significant association between the incidence of the Congenital anomalies and the level of the consanguinity of the child, the prematurity of childbirth, the family history of CMs, the body mass index of the mother and the presence of major trauma during pregnancy.
Conclusion: our results have made it possible to highlight the existence of an association between a certain number of risk factors and the occurrence of congenital malformations. Additional studies are needed to confirm and clarify the role of these risk factors.
Some remarks on the midrange crossing constant
Authors: Czabarka Éva , Singgih Inne , Székely Laszlό , Wang Zhiyu 
Published: August 2020

AbstractWe verify an upper bound of Pach and Tóth from 1997 on the midrange crossing constant. Details of their upper bound have not been available. Our verification is different from their method and hinges on a result of Moon from 1965. As Moon’s result is optimal, we raise the question whether the midrange crossing constant is .
Refutation of a claim made by Fejes Tóth on the accuracy of surface meshes
Authors: Vegter Gert , Wintraecken Mathijs 
Published: August 2020

AbstractFejes Tóth [3] studied approximations of smooth surfaces in three-space by piecewise flat triangular meshes with a given number of vertices on the surface that are optimal with respect to Hausdorff distance. He proves that this Hausdorff distance decreases inversely proportional with the number of vertices of the approximating mesh if the surface is convex. He also claims that this Hausdorff distance is inversely proportional to the square of the number of vertices for a specific non-convex surface, namely a one-sheeted hyperboloid of revolution bounded by two congruent circles. We refute this claim, and show that the asymptotic behavior of the Hausdorff distance is linear, that is the same as for convex surfaces.
Zeros of the Riemann zeta-function in the discrete universality of the Hurwitz zeta-function
Authors: Laurinčikas Antanas 
Published: August 2020

AbstractLet 0 < γ1 < γ2 < ··· ⩽ ··· be the imaginary parts of non-trivial zeros of the Riemann zeta-function. In the paper, we consider the approximation of analytic functions by shifts of the Hurwitz zeta-function ζ(s + iγkh, α), h > 0, with parameter α such that the set {log(m + α): m ∈ } is linearly independent over the field of rational numbers. For this, a weak form of the Montgomery conjecture on the pair correlation of {γk} is applied.
Determination of acrylamide in foods by automatic accelerated solvent extraction and gas chromatography-mass spectrometry
Authors: Kang Cuicui , Ma Haijian , Li Yuan , Zhang Chizhong , Hong Yueqin , Shao Minghua 
Published: August 2020

AbstractThe aim of the experiment is to establish a method for the determination of acrylamide in food by automatic accelerated solvent extraction-gas chromatography-mass spectrometry. D3-acrylamide was used as isotope internal standard, crushed samples were extracted and purified by automatic accelerated solvent, acrylamide was derivatized into 2,3-dibromopropanamide by potassium bromide and potassium bromate under acidic conditions, and then the derivative was extracted by ethyl acetate and detected by gas chromatography-mass spectrometry. The method had a good linear relationship in the concentration range of 10–2000 ng/mL, and the coefficient of determination (R2) was 0.9997. The detection limit of the method was 3 μg/kg. The quantification limit of the method was 10 μg/kg. The standard addition recovery of acrylamide was between 105 and 120%, and the relative standard deviation of the recovery of acrylamide was less than 3.0%. The experimental result showed that the method was simple, sensitive, efficient and accurate, and could be used for the determination of acrylamide in food.
Evaluation of the automated cartridge-based ARIES SARS-CoV-2 Assay (RUO) against automated Cepheid Xpert Xpress SARS-CoV-2 PCR as gold standard
Authors: Tanida Konstantin , Koste Lars , Koenig Christian , Wenzel Werner , Fritsch Andreas , Frickmann Hagen 
Published: August 2020

AbstractIntroductionTo evaluate the automated cartridge-based PCR approach ARIES SARS-CoV-2 Assay targeting the ORF-sequence and the N-gene of SARS-CoV-2.MethodsIn line with the suggestions by Rabenau and colleagues, the automated ARIES SARS-CoV-2 Assay was challenged with strongly positive samples, weakly positive samples and negative samples. Further, intra-assay and inter-assay precision as well as the limit-of-detection (lod) were defined with quantified target RNA and DNA. The Cepheid Xpert Xpress SARS-Cov-2 Assay was used as gold standard.ResultsConcordance between the ARIES assay and the Cepheid assay was 100% for strongly positive samples and for negative samples, respectively. For weakly positive samples as confirmed applying the Cepheid assay, a relevant minority of 4 out of 15 samples (26.7%) went undetected by the ARIES assay. Intra- and inter-assay precision were satisfactory, while the lod was in the 103 DNA copies/reaction-range, in the 103 virus copies/reaction-range, or in the 103–104 free RNA copies/reaction-range in our hands.ConclusionsThe automated ARIES assay shows comparable test characteristics as the Cepheid assay focusing on strongly positive and negative samples but a slightly reduced sensitivity with weakly positive samples. Decisions on diagnostic use should include considerations on the lod.
The prospective effect of purpose in life on gambling disorder and psychological flourishing among university students
Authors: Zhang Meng Xuan , Yang Hong Mian , Tong Kwok-Kit , Wu Anise M. S. 
Published: August 2020

AbstractBackground and aimsGambling disorder (GD) is a mental disorder with a relatively higher prevalence in university students compared to adolescents and adults. Its reciprocity with mental being indicators, such as psychological flourishing, would be expected, but prior to this study had not yet been empirically examined. In addition, the predictive value of purpose in life (PIL) on university students' GD and psychological flourishing also remained unknown. This 1-year longitudinal study was the first to test the potential bidirectional relationships among PIL, self-reported GD symptoms, and psychological flourishing.MethodsIn this study, a total of 283 university students (39.6% females; age = 18–27 years, M = 20.47, SD = 1.15) completed an anonymous questionnaire at both baseline and a year later in a follow-up study.ResultsThe results of our cross-lagged analysis did not show the hypothesized reciprocity between GD symptoms and psychological flourishing (P > 0.05). However, PIL significantly predicted fewer GD symptoms (β = −0.23, P < 0.001) and higher levels of psychological flourishing (β = 0.30, P < 0.001) in the follow-up study. Moreover, psychological flourishing predicted PIL a year later.ConclusionThe findings demonstrate the potential efficacy of purpose/meaning oriented interventions in gambling prevention and in well-being promotion programs.