bluuebunny/crossref_metadata_2025_split huggingface dataset:
Bowel Obstruction and Hydronephrosis Due to an Over-the-Scope Clip
Authors: Tung William , Shultz John R. , Schirmer Bruce D. , Copland Andrew C. , Wang Andrew Y. 
Published: December 2019

ABSTRACT
An over-the-scope clip is a type of endoscopically placed clip used to treat gastrointestinal perforation, bleeding, or fistula. After the defect heals, the clip usually passes uneventfully through the gastrointestinal tract. An uncommon complication of over-the-scope clip placement is intestinal obstruction caused by luminal stenosis at the site of clip placement. Intestinal obstruction can rarely cause other downstream complications such as hydronephrosis from extrinsic compression of the urinary tract. We report a rare case of bilateral hydronephrosis caused by bowel obstruction from a migrated endoscopically placed clip.
SABANAS CULTIVADAS COMO SUMIDEROS DE CARBONO EN UN SUELO ÁCIDO-ARENOSO DE BAJA FERTILIDAD NATURAL
Authors: OJEDA FALCÓN A. D. , LÓPEZ HERNÁNDEZ D, 
Published: December 2019

Un Arenic Paleustults de sabana fue cultivado con especies adaptadas y fertilizado con dosis únicas de 1,0 y 0,3 Mg ha -1 de roca fosfórica (RF) y NPK, respectivamente. Un muestreo aleatorio de suelo, en los tratamientos, sabana natural (SN) y sabana cultivada (SC), a las profundidades de 0-3,0; 3,1-6,0 y 6,1-10,0 cm, permitió las determinaciones de textura, COS, fracción ligera de la materia orgánica del suelo (FL MOS), pHagua, pH KCl , densidad aparente (Da), contenidos totales de nitrógeno (N) y fósforo (P), P-disponible y bases intercambiables. Los análisis estadísticos incluyeron: ANOVA, ACP y un análisis de ruta, que generó modelos estadísticos multicausales. La SC mostró cambios significativos al acumular 2.970 kg ha -1 de COS y presentar una densidad de carga neta coloidal (DCNC) 50% más electronegativa, que se relacionó con la FL MOS, el COS y la Da, en contraste con la SN, cuyos factores de variación fueron de naturaleza inorgánicas.
PRODUCTIVIDAD Y COBERTURA DE CULTIVARES DE ALFALFA (Medicago sativa L.) DE DIFERENTES GRADOS DE REPOSO INVERNAL BAJO DOS FRECUENCIAS DE CORTE
Authors: ORDOÑEZ V. N. , NESCIER I. De los M. , DOVIS V. L. , GIECO J. O. , BONVIN C. , RIBERO G. G. , WALKER G. A. 
Published: December 2019

El objetivo de este trabajo fue evaluar la producción de forraje y porcentaje de cobertura de 3 cultivares de alfalfa con distinto grado de reposo invernal (GRI), sometidas a dos frecuencias de corte durante un año. Se utilizaron tres cultivares (GR6-Verzy), (GR9-Mecha) y (GR10-Ruano). El diseño experimental fue de parcelas divididas con cuatro repeticiones. Se establecieron 2 tratamientos definidos por los intervalos entre cortes: T1: 25 días y T2: 35 días. Estos fueron precisados para las estaciones de primavera, verano y otoño. En invierno el intervalo fue de 45 y 55 días en T1 y T2, respectivamente. Las variables evaluadas fueron: rendimiento de forraje por corte, relación hoja/tallo (H/T), relación (hoja+tallo)/raíz (H+T)/R y el porcentaje de cobertura bajo las frecuencias planteadas. La producción de materia seca (MS) anual para T1 se incrementó. Los valores de productividad no mostraron diferencias significativas entre cultivares y entre tratamientos. Se hallaron diferencias significativas entre tratamientos para la relación H/T. Se observó interacción entre cultivares y tratamientos en la cobertura de la pastura.
Accumulation of α-2,6-sialyoglycoproteins in the muscle sarcoplasm due to Trichinella sp. invasion
Authors: Milcheva Rositsa , Janega Pavol , Celec Peter , Petkova Svetlozara , Hurniková Zuzana , Izrael-Vlková Barbora , Todorova Katerina , Babál Pavel 
Published: December 2019

AbstractThe sialylation of the glycoproteins in skeletal muscle tissue is not well investigated, even though the essential role of the sialic acids for the proper muscular function has been proven by many researchers. The invasion of the parasitic nematodeTrichinella spiralisin the muscles with subsequent formation of Nurse cell-parasite complex initiates increased accumulation of sialylated glycoproteins within the affected area of the muscle fiber. The aim of this study is to describe some details of the α-2,6-sialylation in invaded muscle cells. Asynchronous invasion with infectiousT. spiralislarvae was experimentally induced in mice. The areas of the occupied sarcoplasm were reactive towards α-2,6-sialic acid specificSambucus nigraagglutinin during the whole process of transformation to a Nurse cell.The cytoplasm of the developing Nurse cell reacted withHelix pomatiaagglutinin,Arachis hypogeaagglutinin andVicia villosalectin-B4 after neuraminidase pretreatment.Up-regulation of the enzyme ST6GalNAc1 and down-regulation of the enzyme ST6GalNAc3 were detected throughout the course of this study. The results from our study assumed accumulation of sialyl-Tn-Ag, 6`-sialyl lactosamine, SiA-α-2,6-Gal-β-1,3-GalNAc-α-Ser/Thr and Gal-β-1,3-GalNAc(SiA-α-2,6-)-α-1-Ser/Thr oligosaccharide structures into the occupied sarcoplasm. Further investigations in this domain will develop the understanding about the amazing adaptive capabilities of skeletal muscle tissue.
The effect of size of black cherry stumps on the composition of fungal communities colonising stumps
Authors: Robert Korzeniewicz , Baranowska Marlena , Behnke-Borowczyk Jolanta 
Published: December 2019

Abstract
We investigated fungal communities colonising black cherry stumps. We tested the hypothesis that black cherry stumps of greater diameter should be characterised by more diverse fungal communities than stumps of smaller diameter. The material for analyses came from Podanin Forest District. DNA was extracted using a Plant Genomic DNA purification kit. The results were subjected to bioinformatic analysis and statistical analysis. The OTU sequences were compared using the BLAST algorithm with reference sequences from the UNITE database. In total, 8192 raw sequences were obtained from samples of black cherry stumps applying the Illumina sequencing technique. The results of the statistical analysis indicate a trend towards increased diversity in bigger black cherry stumps. The dominant share of fungi associated with wood decomposition indicates the progressing process of decomposition in stumps. Identification of the role and functions of the individual components of fungal communities colonising stumps may provide insight into the overall ecology of these organisms and provide a basis for improved plant protection, with a view to limiting the occurrence of black cherries in the future in undesirable locations outside their natural range.
Adsorption of copper ions on Magnolia officinalis residues after solid-phase fermentation with Phanerochaete chrysosporium
Authors: Tao Fengyun , Liu Yangping , Chen Junliang , Wang Peng , Huo Qing 
Published: December 2019

AbstractThe disposal of residues while manufacturing Chinese medicine has always been an issue that concerns pharmaceutical factories. Phanerochaete chrysosporium was inoculated into the residues of Magnolia officinalis for solid-phase fermentation to enzymatically hydrolyze the lignin in the residues and thus to improve the efficiency of removal of the copper ions from residues for the utilization of residues from Chinese medicine. With the increase in activities of lignin-degrading enzymes, especially during the fermentation days 6 to 9, the removal rate of copper ions using M. officinalis residues increased dramatically. The rate of removal reached the maximum on the 14th day and was 3.15 times higher than the initial value. The rate of adsorption of copper ions on the fermentation-modified M. officinalis residues followed the pseudo-second-order kinetics. The adsorption isotherms were consistent with the Freundlich models. The adsorption enthalpy was positive, indicating that it was endothermic and elevation in temperature was favorable to this adsorption process. The adsorption free energy was negative, implying the spontaneity of the process. The copper ions adsorbed could be effectively recovered using 0.2 M hydrochloric acid solution. After five successive cycles of adsorption-regeneration, the fermentation-modified M. officinalis residues exhibited a stable adsorption capacity and greater reusability. The M. officinalis residues fermented with P. chrysosporium are low-cost and environmentally friendly copper ions adsorbent, and this preparation technique realizes the optimum utilization of Chinese medicine residues.
Capacity, quasi-local mass, and singular fill-ins
Authors: Mantoulidis Christos , Miao Pengzi , Tam Luen-Fai 
Published: December 2019

Abstract
We derive new inequalities between the boundary capacity of an asymptotically flat 3-manifold with nonnegative scalar curvature and boundary quantities that relate to quasi-local mass; one relates to Brown–York mass and the other is new. We argue by recasting the setup to the study of mean-convex fill-ins with nonnegative scalar curvature and, in the process, we consider fill-ins with singular metrics, which may have independent interest. Among other things, our work yields new variational characterizations of Riemannian Schwarzschild manifolds and new comparison results for surfaces in them.
The Jensen–Pólya program for various L-functions
Authors: Wagner Ian 
Published: December 2019

Abstract
Pólya proved in 1927 that the Riemann hypothesis is equivalent to the hyperbolicity of all of the Jensen polynomials of degree d and shift n for the Riemann Xi-function. Recently, Griffin, Ono, Rolen, and Zagier [M. Griffin, K. Ono, L. Rolen and D. Zagier,
Jensen polynomials for the Riemann zeta function and other sequences,
Proc. Natl. Acad. Sci. USA 116 2019, 23, 11103–11110] proved that for each degree

d
≥
1

{d\geq 1}

all of the Jensen polynomials for the Riemann Xi-function are hyperbolic except for possibly finitely many n. Here we extend their work by showing that the same statement is true for suitable L-functions. This offers evidence for the generalized Riemann hypothesis.
Congruences in Hermitian Jacobi and Hermitian modular forms
Authors: Meher Jaban , Singh Sujeet Kumar 
Published: December 2019

Abstract
In this paper, we first prove an isomorphism between certain spaces of Jacobi forms.
Using this isomorphism, we study the mod p theory of Hermitian Jacobi forms over

ℚ
⁢

(
i
)

{\mathbb{Q}(i)}

.
We then apply the mod p theory of Hermitian Jacobi forms to characterize

U
⁢

(
p
)

{U(p)}

congruences and to study Ramanujan-type congruences for Hermitian Jacobi forms and Hermitian modular forms of degree 2 over

ℚ
⁢

(
i
)

{\mathbb{Q}(i)}

.
Assessment of the hydrocarbon potentiality of the Late Jurassic formations of NW Iraq: A case study based on TOC and Rock-Eval pyrolysis in selected oil-wells
Authors: J. Al-Atroshi Swar , H. Sherwani Govand , F. Al-Naqshbandi Srood 
Published: December 2019

AbstractThe Late Jurassic Naokelekan and Barsarin formations of northwestern Iraq have been investigated in three wells to assess their potentiality for hydrocarbon generation.The results of Total Organic Carbon content (TOC) and Rock-Eval Pyrolysis reveal fair to excellent content of hydrocarbon and suggest that the depositional conditions were suitable for the production and preservation of organic matter. The Thermal Maturity Proxy indicates that the studied formations were mature stage of hydrocarbon generation, with an exception of three samples from the Naokelekan Formation in Shaikhan-8 well, and two samples from the Barsarin Formation in Atrush-1 and Shaikhan-8 wells were at an immature stage.The S1and TOC relationship shows that all the samples are indigenous in nature. Most of samples from the Naokelekan Formation belong to kerogen Type II/III, and that in the Barsarin Formation belongs to kerogen Type II is dominant.The Pr/Ph, Pr/n-C17and Ph/n-C18ratios for the extracted bitumen of both the formations indicate that they were originated from marine organic matter under reducing conditions. Theδ13CSatandδ13CArorange from −28.7 to −27.7‰ and −28.8 to −27.7‰ respectively. These biomarkers show high contribution of marine organic matters preserved under relatively anoxic conditions in the studied formations.
Anthonotha macrophylla P. Beauv (Caesalpiniaceae) aqueous extract exhibits antiestrogenic effects in vitro and in vivo
Authors: Gueyo Telesphore Nanbo , Mvondo Marie Alfrede , Zingue Stéphane , Sipping Marius Trésor Kemegne , Kenmogne Larissa Vanelle , Ndinteh Derek Tantoh , Njamen Dieudonné 
Published: December 2019

Abstract

Background
Phytoestrogens are natural compounds known as natural selective estrogen receptor modulators used as alternatives against estrogen-dependent cancers. This study aims to evaluate the antiestrogenic effects of Anthonotha macrophylla, a plant used to treat cancer in Cameroon.

Methods
The estrogenic/antiestrogenic activities of A. macrophylla aqueous extract were evaluated in vitro using MCF-7 cell proliferation assay. Moreover, a classical uterotrophic test was carried out to evaluate the antiestrogenic effects of A. macrophylla in rats. Changes in the uterus, vagina, and mammary glands were used as endpoints of estrogenicity.

Results

Anthonotha macrophylla induced antiestrogenic effects in vitro at all the tested concentrations by inhibiting estradiol-induced MCF-7 cell proliferation (p < 0.001). In vivo, a coadministration of estradiol with A. macrophylla extract led to the decrease of uterine [150 (p < 0.05) and 300 (p < 0.01) mg/kg body weight (BW)] and vaginal [75 (p < 0.01) and 300 (p < 0.05) mg/kg BW] epithelial thickness. In addition, a reduction in the mammary gland acini lumen’s diameter was also observed at 75 and 150 mg/kg. Gas chromatography-time-of-flight-mass spectrometry analysis showed that phenolic acid derivatives are present in A. macrophylla extract, which are well known to be endowed with estrogenic/antiestrogenic properties. The LD50 of A. macrophylla was estimated to be less than 2000 mg/kg.

Conclusions

Anthonotha macrophylla aqueous extract has antiestrogenic properties. This could promote more studies to explore its ability to prevent estrogen-dependent cancers.
Some generalized characters associated to a transitive permutation group
Authors: Knapp Wolfgang , Schmid Peter 
Published: December 2019

Abstract
Let G be a finite transitive permutation group of degree n, with point stabilizer

H
≠
1

{H\neq 1}

and permutation character π.
For every positive integer t, we consider the generalized character

ψ
t

=

ρ
G

-

t
⁢

(

π
-

1
G

)

{\psi_{t}=\rho_{G}-t(\pi-1_{G})}

, where

ρ
G

{\rho_{G}}

is the regular character of G and

1
G

{1_{G}}

the 1-character.
We give necessary and sufficient conditions on t (and G) which guarantee that

ψ
t

{\psi_{t}}

is a character of G.
A necessary condition is that

t
≤

min
⁡

{

n
-
1

,

|
H
|

}

{t\leq\min\{n-1,\lvert H\rvert\}}

, and it turns out that

ψ
t

{\psi_{t}}

is a character of G for

t
=

n
-
1

{t=n-1}

resp.

t
=

|
H
|

{t=\lvert H\rvert}

precisely when G is 2-transitive resp. a Frobenius group.
Temperature-dependent negative Poisson’s ratio of monolayer graphene: Prediction from molecular dynamics simulations
Authors: Fan Yin , Xiang Yang , Shen Hui-Shen 
Published: December 2019

Abstract
A temperature-dependent intrinsic property of monolayer graphene, the negative Poisson’s ratio (NPR), is investigated in the present study. The classical molecular dynamics (MD) method is employed and the Erhart-Albe hybrid potential, i.e. the combination of the reactive empirical bond order (REBO) and the Tersoff potentials, is used for the graphene sheet in the numerical simulation. In the simulation process, the graphene sheet is assumed to be free standing with in-plane periodical boundary condition and under an ambient temperature up to 1000 K. Our study shows that the graphene NPR is decreased with the increase of temperature. Besides, we also perform the simulation of the graphene negative temperature expansion coefficient (NTEC) as an indirect validation of the present MD model. The characteristics of the nonlinear variations for both the NPR and the NTEC of a pristine graphene sheet are investigated. Our MD results at low temperature (0.1 K) further prove the intrinsic and anisotropic property of NPR for graphene.
Application of bio-based solvents for biocatalysed synthesis of amides with
Pseudomonas stutzeri
lipase (PSL)
Authors: Paggiola Giulia , Derrien Nolwenn , Moseley Jonathan D. , Green Anthony , Flitsch Sabine L. , Clark James H. , McElroy Con Robert , Hunt Andrew J. 
Published: December 2019

Abstract
Bio-based solvents were investigated for the biocatalysed amidation reactions of various ester-amine combinations by Pseudomonas stutzeri lipase (PSL). Reactions were undertaken in a range of green and potentially bio-based solvents including terpinolene, p-cymene, limonene, 2-methyl THF, ɣ-valerolactone, propylene carbonate, dimethyl isosorbide, glycerol triacetate and water. Solvent screenings demonstrated the importance and potential of using non-polar bio-based solvents for favouring aminolysis over hydrolysis; whilst substrate screenings highlighted the unfavourable impact of reactants bearing bulky para- or 4-substituents. Renewable terpene-based solvents (terpinolene, p-cymene, D-limonene) were demonstrated to be suitable bio-based media for PSL amidation reactions. Such solvents could provide a greener and more sustainable alternative to traditional petrochemical derived non-polar solvents. Importantly, once the enzyme (either PSL or CALB) binds with a bulky para-substituted substrate, only small reagents are able to access the active site. This therefore limits the possibility for aminolysis to take place, thereby promoting the hydrolysis. This mechanism of binding supports the widely accepted ‘Ping Pong – Bi Bi’ mechanism used to describe enzyme kinetics. The work highlights the need to further investigate enzyme activity in relation to para- or 4-substituted substrates. A priority in PSL chemistry remains a methodology to tackle the competing hydrolysis reaction.
Tracking In-Match Movement Demands Using Local Positioning System in World-Class Men's Ice Hockey
Authors: Douglas Adam S. , Kennedy Cory R. 
Published: December 2019

Abstract
Douglas, AS and Kennedy, CR. Tracking in-match movement demands using local positioning system in world-class men's ice hockey. J Strength Cond Res 34(3): 639–646, 2020—While the global positioning system has been used in field sports for a decade, local positioning systems are newly available in indoor sports for the tracking of velocity and distance during competition. World-class male ice hockey players (n = 20) were monitored during 5 international matches. Speed and distance outputs were analyzed to determine the differences between positions, periods, and in-shift demands. Defense had a difference between forwards at distances covered at very slow (p < 0.001), slow (p < 0.001), and moderate (p < 0.001) speed. Forwards were found to cover a greater distance at very fast speed (p = 0.001) and sprint speed (p < 0.001). Defense had a decrease in skating distance at very fast (p < 0.001) and sprint skating speeds (p = 0.02). Forwards had an increase in very slow skating (p = 0.02) and a decrease in sprint skating distance (p = 0.02). Game situational differences were found for defense and forwards in average speeds for defense (p < 0.001) and forwards (p < 0.001). Local positioning systems data have the potential to accurately inform coaches of the position-specific demands of game situations and the training needs by position. Specifically, forwards performed more high-intensity skating than defensemen, whereas powerplay and penalty kill situations offered specific demands for the 2 positional groups. Finally, the intensity of skating was reduced in the third period for both defensemen and forwards. Further research can evaluate whether this is related to tactical decisions, or the metabolic cost of ice hockey.
Effects of pH of Testing Liquid on the Degradation of Rocks
Authors: Ozdogan Mehmet Volkan 
Published: December 2019

Abstract
Weathering of rocks causes strength loss in rock masses, which induces unexpected failures in rock structures. For a sloped area, weathering of rocks has to be considered for a stable slope design. Slake durability test is the most common method used for determining the weathering of rocks. Although tap water has been used as a slaking fluid in the standard test procedure, rocks are often exposed to groundwater with various pH. This study aims to investigate the effects of pH of testing liquid for slake durability testing and relations between the mineral constituents. To investigate the effect of pH of the test liquid, nine rock samples were subjected to slake durability tests using testing liquid with different pH levels. Additionally, chemical and X-ray diffraction analyses were performed to determine the mineral composition of test samples. The test results show that the mineralogical composition has a great influence on the slake durability of rocks in both acidic and alkali environments.
Antioxidant CoQ10 Restores Fertility by Rescuing Bisphenol A-Induced Oxidative DNA Damage in theCaenorhabditis elegansGermline
Authors: Hornos Carneiro Maria Fernanda , Shin Nara , Karthikraj Rajendiran , Barbosa Fernando , Kannan Kurunthachalam , Colaiácovo Monica P 
Published: December 2019

AbstractStudies have shown an association between female infertility and exposure to endocrine-disrupting chemicals (EDCs), yet strategies for neutralizing such effects are lacking. Bisphenol A (BPA) is a prevalent EDC that affects...Endocrine-disrupting chemicals are ubiquitously present in our environment, but the mechanisms by which they adversely affect human reproductive health and strategies to circumvent their effects remain largely unknown. Here, we show in Caenorhabditis elegans that supplementation with the antioxidant Coenzyme Q10 (CoQ10) rescues the reprotoxicity induced by the widely used plasticizer and endocrine disruptor bisphenol A (BPA), in part by neutralizing DNA damage resulting from oxidative stress. CoQ10 significantly reduces BPA-induced elevated levels of germ cell apoptosis, phosphorylated checkpoint kinase 1 (CHK-1), double-strand breaks (DSBs), and chromosome defects in diakinesis oocytes. BPA-induced oxidative stress, mitochondrial dysfunction, and increased gene expression of antioxidant enzymes in the germline are counteracted by CoQ10. Finally, CoQ10 treatment also reduced the levels of aneuploid embryos and BPA-induced defects observed in early embryonic divisions. We propose that CoQ10 may counteract BPA-induced reprotoxicity through the scavenging of reactive oxygen species and free radicals, and that this natural antioxidant could constitute a low-risk and low-cost strategy to attenuate the impact on fertility by BPA.
Azerbaijan Democratic Party: Ups and Downs (1945-1946)
Authors: Soleimani Amiri Mohammad 
Published: December 2019

Democratic Party of Azerbaijan's movement is one of the most important events in the history of Iran and the world. It was for the first time in the history of Iran that a political party seriously stressed the issue of autonomy. In addition, this movement as liberation movement prioritized several decisive and fundamental reform. Most important of all, Iran's complaints of the Soviet Union in the Security Council and the confrontation of superpowers led to the Cold War. This study attempts to analyze this issue using several Persian, English, Russian and Turkish resources. The present paper concludes that the emergence of the Democratic Party movement was the result of internal and external in addition, objective and subjective factors.