bluuebunny/crossref_metadata_2025_split huggingface dataset:
Adaptive signatures in thermal performance of the temperate coral Astrangia poculata
Authors: Aichelman Hannah E. , Zimmerman Richard C. , Barshis Daniel J. 
Published: February 2019

ABSTRACT
Variation in environmental characteristics and divergent selection pressures can drive adaptive differentiation across a species' range. Astrangia poculata is a temperate scleractinian coral that provides unique opportunities to understand the roles of phenotypic plasticity and evolutionary adaptation in coral physiological tolerance limits. This species inhabits hard-bottom ecosystems from the northwestern Atlantic to the Gulf of Mexico and withstands an annual temperature range of up to 20°C. Additionally, A. poculata is facultatively symbiotic and co-occurs in both symbiotic (‘brown’) and aposymbiotic (‘white’) states. Here, brown and white A. poculata were collected from Virginia (VA) and Rhode Island (RI), USA, and exposed to heat (18–32°C) and cold (18–6°C) stress, during which respiration of the coral host along with photosynthesis and photochemical efficiency (Fv/Fm) of Breviolum psygmophilum photosymbionts were measured. Thermal performance curves (TPCs) of respiration revealed a pattern of countergradient variation with RI corals exhibiting higher respiration rates overall, and specifically at 6, 15, 18, 22 and 26°C. Additionally, thermal optimum (Topt) analyses show a 3.8°C (brown) and 6.9°C (white) higher Topt in the VA population, corresponding to the warmer in situ thermal environment in VA. In contrast to respiration, no origin effect was detected in photosynthesis rates or Fv/Fm, suggesting a possible host-only signature of adaptation. This study is the first to consider A. poculata’s response to both heat and cold stress across symbiotic states and geography, and provides insight into the potential evolutionary mechanisms behind the success of this species along the East Coast of the USA.
Vasopressin–aquaporin-2 pathway: recent advances in understanding water balance disorders
Authors: Ranieri Marianna , Di Mise Annarita , Tamma Grazia , Valenti Giovanna 
Published: February 2019

The alteration of water balance and related disorders has emerged as being strictly linked to the state of activation of the vasopressin–aquaporin-2 (vasopressin–AQP2) pathway. The lack of responsiveness of the kidney to the vasopressin action impairs its ability to concentrate the urine, resulting in polyuria, polydipsia, and risk of severe dehydration for patients. Conversely, non-osmotic release of vasopressin is associated with an increase in water permeability in the renal collecting duct, producing water retention and increasing the circulatory blood volume. This review highlights some of the new insights and recent advances in therapeutic intervention targeting the dysfunctions in the vasopressin–AQP2 pathway causing diseases characterized by water balance disorders such as congenital nephrogenic diabetes insipidus, syndrome of inappropriate antidiuretic hormone secretion, nephrogenic syndrome of inappropriate antidiuresis, and autosomal dominant polycystic kidney disease. The recent clinical data suggest that targeting the vasopressin–AQP2 axis can provide therapeutic benefits in patients with water balance disorders.
Effects of exercise on heart rate variability by time-domain, frequency-domain and non-linear analyses in equine athletes
Authors: Li Ka Hou Christien , Lai Rachel Wing Chuen , Du Yimei , Ly Vivian , Li David Chun Yin , Lam Michael Huen Sum , Roever Leonardo , Fitzgerald-Smith Sophia , Li Guangping , Liu Tong , Tse Gary , Dong Mei ,   International Health Informatics Study (IHIS) Network
Published: February 2019

Background: Heart rate variability (HRV) is an intrinsic property that reflects autonomic balance and has been shown to be predictive of all-cause and cardiovascular mortality. It can be altered by physiological states such as exercise or pathological conditions. However, there are only a handful of studies on HRV in horses. The aim of this study is to compare HRV parameters before and during exercise in horses. Methods: Time-domain, frequency-domain and non-linear analyses were applied to quantify time series data on RR intervals before and during exercise in horses (n=7). Results: Exercise increased heart rate from 44±8 to 113±17 bpm (ANOVA, P<0.05) and decreased standard deviation (SD) from 7±2 to 4±2 bpm, coefficient of variation (CoV) from 16±4% to 3±2% and root mean square of successive RR interval differences (RMSSD) from 89.4±91.5 to 6.5±3.7 ms. Contrastingly, no difference in low-frequency (0.10±0.03 vs. 0.09±0.03 Hz) and high-frequency (0.19±0.03 vs. 0.18±0.03 Hz) peaks, nor in their percentage powers (2±1 vs. 4±5%; 59±9 vs. 64±20%; 39±10 vs. 32±19%) were observed but very low-frequency, low-frequency, and high-frequency powers (ms2) were reduced from 29±17 to 2±5, 1138±372 to 22±22 and 860±564 to 9±6, respectively, as was total power (in logarithms) (7.52±0.52 to 3.25±0.73). Poincaré plots of RRn+1 against RRn revealed similar ellipsoid shapes before and after exercise. The SD along the line-of-identity (SD2) and SD perpendicular to the line-of-identity (SD1) were decreased by exercise (62±17 vs. 9±5 and 63±65 vs. 5±3), corresponding to increased SD2/SD1 ratio from 1.33±0.45 to 2.19±0.72. No change in approximate and sample entropy was detected (0.97±0.23 vs. 0.82±0.22 and 1.14±0.43 vs. 1.37±0.49). Detrended fluctuation analysis revealed unaltered short-term fluctuation slopes (0.76±0.27 vs. 1.18±0.55) but increased long-term fluctuation slopes (0.16±0.11 vs. 0.50±0.16) after exercise. Conclusion: Exercise leads to a decrease in HRV but did not affect signal entropy in horses.
La Transnacionalización de la Resistencia a la Minería en Tambogrande y Pascua Lama
Authors: Paredes Maritza 
Published: February 2019

El artículo explora diferentes combinaciones estratégicas de escalamiento global de los conflictos de resistencia a la minería. Se responde a la pregunta ¿cómo los actores locales toman decisiones respectos a cambios de escala a nivel internacional al mismo tiempo que contemplan las opciones institucionales disponibles a nivel nacional? A partir de dos casos de resistencia a la minería de oro, Tambogrande en Perú y Pascua Lama en Chile, este estudio explica como las características de la institucionalidad ambiental nacional condiciona diferentes combinaciones de escalamiento global y nacional que llevan a cada caso a alcanzar sus objetivos.
Enseñar la ciudad como territorio de memorias y relatos en disputa sobre la trágica inundación ocurrida el 2 de abril de 2013 en la localidad de La Plata. Una experiencia pedagógica en formación inicial
Authors: Linare Cecilia Elizabet , Tarquini María Soledad 
Published: February 2019

En este trabajo presentamos una experiencia de enseñanza-aprendizaje que desarrollamos como docentes de formación inicial con jóvenes estudiantes que cursan el segundo año del Profesorado de Geografía en el ISFD N° 96 de La Plata, en 2016. Desde la materia Perspectiva Pedagógica Didáctica II abordamos el espacio urbano como objeto de estudio, a través de algunas categorías analíticas tales como marcas territoriales y sitios de memoria, para luego transformarlo en objeto de enseñanza a partir de los aportes de la Didáctica Específica en Ciencias Sociales y Geografía. Seleccionamos y analizamos una producción realizada por estudiantes sobre el Parque Castelli y sus alrededores, lugares en los que se encuentran diversas marcas territoriales tales como un monumento y murales que denuncian la inundación ocurrida el 2 de abril de 2013 en la ciudad y conmemora a sus víctimas. La experiencia nos permitió reflexionar sobre la enseñanza de la ciudad desde los tópicos y enfoques propuestos, cuestionar concepciones espaciales e imaginarios geográficos construidos y reconocernos como ciudadanos productores de espacio con derecho a habitar la ciudad.
El pensamiento histórico de los estudiantes que ingresan a la formación docente de Educación Primaria: una aproximación a su estudio desde un enfoque epistémico de la escritura
Authors: Rodríguez Nélida Beatriz 
Published: February 2019

Existe un consenso extendido en el ámbito de la educación acerca de la relevancia que asume el desarrollo del pensamiento histórico (en adelante PH) en general y particularmente en quienes tendrán la tarea de formar a niños y jóvenes. Si bien no hay acuerdo respecto de la definición de la noción de PH, los especialistas coinciden en que resulta de un proceso de construcción y por ello es objeto de enseñanza. Se considera que la escritura, concebida como herramienta epistémica, es un elemento fundamental para potenciar ese proceso a la vez que ofrece un soporte material privilegiado para retroalimentar la construcción del PH. En esa línea se ha elaborado la tesis “El pensamiento histórico de los estudiantes que ingresan a la formación docente de Educación Primaria: una aproximación a su estudio desde un enfoque epistémico de la escritura” en el marco de la Maestría de Didácticas Específicas de la UNL, Argentina. El trabajo aborda los resultados de la investigación realizada y considera la relevancia que asume el estudio de la relación PH y escritura en referencia a los debates que atraviesan las Didácticas Específicas y la Formación Docente en la región.
UFRS 17 SİGORTA SÖZLEŞMELERİ KAPSAMINDA ÖNGÖRÜLEN ÖLÇÜM YAKLAŞIMLARINDAN GENEL MODEL YAKLAŞIMI VE BİR UYGULAMA
Authors: OĞUZ Mustafa 
Published: February 2019

Sigorta muhasebesi, sigorta sektöründe faaliyet gösteren şirketlerin muhasebe uygulamalarını ve finansal raporlamalarını içeren sektörel bir muhasebe sistemini yansıtmaktadır. Bir ihtisas muhasebesi olarak sigorta muhasebesi, uzmanlık isteyen ve sigortacılık sektörünün iyi bir şekilde anlaşılmasını gerektiren özellikli bir muhasebe dalıdır. Türkiye’de sigorta muhasebesine yön veren çeşitli düzenlemeler bulunmaktadır. Bunların başında Hazine Müsteşarlığı tarafından yayımlanan düzenlemeler gelmektedir. Bu düzenlemeler haricinde muhasebenin temel kavramları, genel kabul görmüş muhasebe ilkeleri, Maliye Bakanlığı tarafından uygulanması öngörülen düzenlemeler, Sermaye Piyasası Kanunu kapsamında uygulanması öngörülen düzenlemeler gibi düzenlemeler de bulunmaktadır. Ancak zaman içerisinde gelişen ve ülkemizde de sigorta şirketleri tarafından uygulanması zorunlu olan Uluslararası Muhasebe ve Finansal Raporlama Standartları (UMS ve UFRS’ler), sigorta muhasebesine yön veren düzenlemeler içerisinde ayrı bir öneme sahiptir. Uluslararası Muhasebe Standartları Kurulu tarafından yayımlanan UMS ve UFRS’lerden biri de UFRS 17 Sigorta Sözleşmeleri Standardı’dır. UFRS 17, sigorta sözleşmelerinin muhasebeleştirilmesi ve raporlanmasına yönelik alışılagelmiş uygulamaları kökten değiştirecek yeni birtakım özellikler içermektedir. Bunlardan biri de sigorta sözleşmelerinin muhasebeleştirilmesi ve raporlanmasında esas alınması gereken ölçüm yaklaşımlarıdır. Bu çalışmada söz konusu ölçüm yaklaşımlarından Genel Model Yaklaşımı tanıtılacak olup, bu yaklaşıma ilişkin örnek bir uygulamaya yer verilecektir.
MARKA PERFORMANSININ REKABET GÜCÜNE ETKİSİ:ULUSAL VE ULUSLARARASI BİRLEŞME VE SATIN ALMALAR AÇISINDAN BİR DEĞERLENDİRME
Authors: ERDİL Tayyip Sabri , AYDOĞAN Sibel , AYAR Bahadır , GÜVENDIK Özge 
Published: February 2019

Bu çalışmanın temel amacı, ulusal ve uluslararası birleşme ve satın almalar bağlamında marka performansının rekabet gücü üzerine etkisinin araştırılmasıdır. Çalışmada, 2010–2017 yılları arasında ulusal ve uluslararası birleşme ve satın alma yapmış 1208 işletmenin 243 tanesinden veri toplanmıştır. Araştırmada marka performansının rekabet gücü üzerinde etkili olduğu tespit edilmiştir. Birleşme ve satın alma yapma sebeplerinden birinin de rekabet gücünü artırmak olduğu söylenebilir. İşletmelerin güçlü bir itibar ve marka imajı oluşturmasında aynı zamanda ürün güvenilirliğinde birleşme ve satın almaların katkısı olduğu görülmektedir. Marka performansı, ürün rekabet gücü ve operasyonel rekabet güçleri kıyaslandığında ulusal ve uluslararası birleşme ve satın alma işlemi gerçekleştiren işletmeler arasında herhangi bir farklılık olmadığı saptanmıştır. Fakat bu birleşme ve satın alma işlemlerinin rekabet boyutları üzerinde farklı derecede etkileri olduğu belirlenmiştir. İşletmelerin, ulusal boyuttan daha çok uluslararası boyutta birleşme ve satın alma işlemi gerçekleştirdiği tespit edilmiştir. Analiz sonucunda elde edilen bulgular ışığında, marka performansı ve rekabet gücü ile ilgili mevcut durumun değerlendirmesi yapılmış ve geleceğe ilişkin öneriler sunulmuştur.
Thinking together with material representations: Joint epistemic actions in creative problem solving
Authors: Bjørndahl Johanne Stege , Fusaroli Riccardo , Østergaard Svend , Tylén Kristian 
Published: January 2019

Abstract
How do material representations such as models, diagrams, and drawings come to shape and aid collective, epistemic processes? This study investigated how groups of participants spontaneously recruited material objects (in this case, LEGO blocks) to support collective creative processes in the context of an experiment. Qualitative microanalyses of the group interactions motivate a taxonomy of different roles that the material representations play in the joint epistemic processes: illustration, elaboration, and exploration. Firstly, the LEGO blocks were used to illustrate already well-formed ideas in support of communication and epistemic alignment. Furthermore, the material concretization of otherwise abstract ideas in LEGO blocks gave rise to elaboration: discussions, requests for clarification, and discovery of unnoticed conceptual disagreements. Lastly, the LEGO blocks were used for exploration. That is, the material representations were experimented on and physical attributes were explored resulting in discoveries of new meaning potentials and creative solutions. We discuss these different ways in which material representations do their work in collective reasoning processes in relation to ideas about top-down and bottom-up cognitive processes and division of cognitive labor.
Regularity of one-sided multilinear fractional maximal functions
Authors: Liu Feng , Xu Lei 
Published: January 2019

AbstractIn this paper we introduce and investigate the regularity properties of one-sided multilinear fractional maximal operators, both in continuous case and in discrete case. In the continuous setting, we prove that the one-sided multilinear fractional maximal operators$\mathfrak{M}_\beta^{+}\; \text{and}\, \mathfrak{M}_\beta^{-}$map W1,p1 (ℝ)×· · ·×W1,pm (ℝ) into W1,q(ℝ) with 1 < p1, … , pm < ∞, 1 ≤ q < ∞ and $1/q= \sum_{i=1}^m1/p_i-\beta$, boundedly and continuously. In the discrete setting, we show that the discrete one-sided multilinear fractional maximal operators are bounded and continuous from ℓ1(ℤ)×· · ·×ℓ1(ℤ) to BV(ℤ). Here BV(ℤ) denotes the set of functions of bounded variation defined on ℤ. Our main results represent significant and natural extensions of what was known previously.
Synthesis, crystal structure and magnetic properties of an octanuclear cerium(III) complex of pyridine-2,6-dicarboxylate
Authors: Sharif Shahzad , Khan Islam Ullah , Sahin Onur , Jabeen Nadia , Ahmad Saeed , Khan Bushra 
Published: January 2019

AbstractAn octanuclear compound of cerium(III), [Ce8(Pydc)10(HPydc)4.22H2O].11H2O (1) (Pydc=pyridine-2,6-dicarboxylate anion) was prepared under mild solvothermal conditions and its crystal structure was determined by single-crystal X-ray diffraction. Three kinds of coordination environments are observed, which include: [Ce(Pydc)3], [Ce(Pydc)(H2O)4(O,O)], and [Ce(H2O)7(O,O)]. Each cerium atom in1is nine-coordinated but two different geometries are found. The Ce1 and Ce2 atoms exhibit a nearly tricapped trigonal prismatic CeN3O6geometry, while Ce3 and Ce4 possess CeNO8and CeO9coordination polyhedra, which approximate to slightly distorted mono-capped square antiprisms having 12 triangular faces. The Pydc ligands adopt tri-, tetra-, and penta-coordination modes through tridentate chelating and,μ2andμ3-bridging modes, respectively. The clusters are joined by O–H···O hydrogen bonds to generate 3D supramolecular network. Magnetic susceptibility measurements for1indicate that theχmvalues obey the Curie-Weiss law. The overall magnetic behavior is typical for the presence of antiferromagnetic exchange coupling interactions between the cerium(III) ions.
Current Approaches on Warming up for Sports Performance: A Critical Review
Authors: Gil Maria Helena , Neiva Henrique P. , Sousa António C. , Marques Mário C. , Marinho Daniel A. 
Published: February 2019

ABSTRACT
WARM-UP PROCEDURES HAVE BECOME RELEVANT FOR COACHES, RESEARCHERS, AND SPORTS PROFESSIONALS IN RECENT YEARS. SEVERAL STUDIES HAVE BEEN CONDUCTED TO VERIFY THE EFFECTS OF DIFFERENT PREACTIVITIES, REGARDING DIFFERING VOLUME, INTENSITY, REST, AND SPECIFICITY, AND THE WARM-UP IS NOW WIDELY ACCEPTED AS AN ESSENTIAL PRACTICE TO IMPROVE PERFORMANCE. RESEARCH IS NOW FOCUSING ON THE EFFECTS OF STATIC AND DYNAMIC STRETCHES, POSTACTIVATION POTENTIATION PHENOMENON, AND OPTIMIZATION OF WAITING PERIODS WITH PASSIVE WARM-UP APPROACHES. IN THIS BRIEF REVIEW, WE CRITICALLY ANALYZE THE EMERGING METHODS AND STRATEGIES OF WARM-UP THAT HAVE BEEN INVESTIGATED AND USED BEFORE COMPETITIVE EVENTS.
A Cellular Mechanism Underlying Enhanced Capability for Complex Olfactory Discrimination Learning
Authors: Chandra Naveen , Awasthi Richa , Ozdogan Togba , Johenning Friedrich W. , Imbrosci Barbara , Morris Genela , Schmitz Dietmar , Barkai Edi 
Published: January 2019

AbstractThe biological mechanisms underlying complex forms of learning requiring the understanding of rules based on previous experience are not yet known. Previous studies have raised the intriguing possibility that improvement in complex learning tasks requires the long-term modulation of intrinsic neuronal excitability, induced by reducing the conductance of the slow calcium-dependent potassium current (sIAHP) simultaneously in most neurons in the relevant neuronal networks in several key brain areas. Such sIAHPreduction is expressed in attenuation of the postburst afterhyperpolarization (AHP) potential, and thus in enhanced repetitive action potential firing. Using complex olfactory discrimination (OD) learning as a model for complex learning, we show that brief activation of the GluK2 subtype glutamate receptor results in long-lasting enhancement of neuronal excitability in neurons from controls, but not from trained rats. Such an effect can be obtained by a brief tetanic synaptic stimulation or by direct application of kainate, both of which reduce the postburst AHP in pyramidal neurons. Induction of long-lasting enhancement of neuronal excitability is mediated via a metabotropic process that requires PKC and ERK activation. Intrinsic neuronal excitability cannot be modulated by synaptic activation in neurons from GluK2 knock-out mice. Accordingly, these mice are incapable of learning the complex OD task. Moreover, viral-induced overexpression of Gluk2 in piriform cortex pyramidal neurons results in remarkable enhancement of complex OD learning. Thus, signaling via kainate receptors has a central functional role in higher cognitive abilities.
Glutamate Within the Marmoset Anterior Hippocampus Interacts with Area 25 to Regulate the Behavioral and Cardiovascular Correlates of High-Trait Anxiety
Authors: Zeredo Jorge L. , Quah Shaun K.L. , Wallis Chloe U. , Alexander Laith , Cockcroft Gemma J. , Santangelo Andrea M. , Xia Jing , Shiba Yoshiro , Dalley Jeffrey W. , Cardinal Rudolf N. , Roberts Angela C. , Clarke Hannah F. 
Published: February 2019

High-trait anxiety is a risk factor for the development of affective disorders and has been associated with decreased cardiovascular and behavioral responsivity to acute stressors in humans that may increase the risk of developing cardiovascular disease. Although human neuroimaging studies of high-trait anxiety reveals dysregulation in primate cingulate areas 25 and 32 and the anterior hippocampus (aHipp) and rodent studies reveal the importance of aHipp glutamatergic hypofunction, the causal involvement of aHipp glutamate and its interaction with these areas in the primate brain is unknown. Accordingly, we correlated marmoset trait anxiety scores to their postmortem aHipp glutamate levels and showed that low glutamate in the right aHipp is associated with high-trait anxiety in marmosets. Moreover, pharmacologically increasing aHipp glutamate reduced anxiety levels in highly anxious marmosets in two uncertainty-based tests of anxiety: exposure to a human intruder with uncertain intent and unpredictable loud noise. In the human intruder test, increasing aHipp glutamate decreased anxiety by increasing approach to the intruder. In the unpredictable threat test, animals showed blunted behavioral and cardiovascular responsivity after control infusions, which was normalized by increasing aHipp glutamate. However, this aHipp-mediated anxiolytic effect was blocked by simultaneous pharmacological inactivation of area 25, but not area 32, areas which when inactivated independently reduced and had no effect on anxiety, respectively. These findings provide causal evidence in male and female primates that aHipp glutamatergic hypofunction and its regulation by area 25 contribute to the behavioral and cardiovascular symptoms of endogenous high-trait anxiety.SIGNIFICANCE STATEMENTHigh-trait anxiety predisposes sufferers to the development of anxiety and depression. Although neuroimaging of these disorders and rodent modeling implicate dysregulation in hippocampal glutamate and the subgenual/perigenual cingulate cortices (areas 25/32), the causal involvement of these structures in endogenous high-trait anxiety and their interaction are unknown. Here, we demonstrate that increased trait anxiety in marmoset monkeys correlates with reduced hippocampal glutamate and that increasing hippocampal glutamate release in high-trait-anxious monkeys normalizes the aberrant behavioral and cardiovascular responsivity to potential threats. This normalization was blocked by simultaneous inactivation of area 25, but not area 32. These findings provide casual evidence in primates that hippocampal glutamatergic hypofunction regulates endogenous high-trait anxiety and the hippocampal–area 25 circuit is a potential therapeutic target.
Research into efficiency of pasterization of boiled sausage products in order to improve their storage term
Authors: Pasichnyi Vasil , Ukrainets Anatoliy , Khrapachov Oleg , Marynin Andriy , Svyatnenko Roman , Moroz Olena 
Published: January 2019

We present a study into bacteriostatic effects achieved by re­pasteurization at a temperature of 85–90 °C for 20 minutes in the presence of an oxygen absorber. The applied treatment method makes it possible, on day 94 of storage, to obtain the level of contamination of microorganisms, comparable to the background microbiological contamination of sausages, for the sausages produced without pasteurization.The study confirmed the effectiveness of protective barrier properties of multilayer polymeric materials manufactured by LLC Sirius Extruzhen (Ukraine) for the storage of boiled sausages for up to 26 days. We established the possibility of storing sausages for 35 days based on the obtained data on the stability of microbiological indicators and compliance with the requirements to organoleptic indicators.The study presented ways to achieve the shelf life of cooked sausages twice longer than the typical, recommended for sausages with re­pasteurization. We obtained the results for sausages exposed to re­pasteurization at a temperature of 85–90 °C for 15–20 minutes. We packaged the examined samples at the thermoforming lines “Multivac” (Germany) and “Webomatic” (Germany). We performed the pasteurization of products at the “Fessman” (Germany) universal heat chamber.We confirmed the possibility of combination of protein stabilizers and animal proteins based on pig skin, dairy products, and spices in the formulations of samples of pasteurized sausages made from beef, pork, poultry meat, in particular, poultry meat of mechanical boning. In the study, we established that the grade of boiled sausages does not produce a significant effect on the shelf life of sausages when applying re­pasteurization together with an oxygen absorber