bluuebunny/crossref_metadata_2025_split huggingface dataset:
Upper Caraş River (Danube watershed) fish populations fragmentation – technical rehabilitation proposal
Authors: Voicu Răzvan , Bănăduc Doru , Baumgartner Lee Jason , Voicu Liliana , Curtean-Bănăduc Angela 
Published: November 2017

Abstract
We propose a technical solution for fish movement based on the flow of water over a spill threshold. Such barriers are common in the Danube system. The proposed system has a range of operating components which are easily detachable from the spill threshold, are resistant to corrosion and will not harm the fish. In fact, if designed to complement swimming abilities of target fish, it should provide adequate passage for both adults and juveniles. If implemented correctly, the design may offer a solution to help displaced fish recolonize upstream habitats.
Explaining alienability contrasts in adpossessive constructions: Predictability vs. iconicity
Authors: Haspelmath Martin 
Published: November 2017

Abstract
This paper argues that alienability contrasts in adnominal possessive constructions should not be explained
by iconicity of distance, but by predictability due to the higher relative frequency of possessed occurrences of
inalienable nouns. While it is true that when there is an alienability split, the alienable construction typically has
an additional marker which often separates the possessor from the possessed noun, the broader generalization
is that additional marking is found when the possessive relationship is less predictable. This generalization also
extends to cases of antipossessive marking and impossessibility. The diachronic mechanisms responsible for
the development of alienability contrasts are differential reduction and differential inhibition of a new construction.
A Mn(II) coordination polymer from a polycarboxylate-containing ligand: synthesis, structural characterization, and properties
Authors: Zhu Xiao-Hong , Cheng Xiao-Chun , Qian Yun-Hua 
Published: November 2017

Abstract
The neutral, four-fold protonated pyridine-3,5-dicarbox(3,5-dicarboxylatoanilide) (H4L) reacts with Mn(II) salts under hydrothermal conditions to yield a new complex: [Mn2(L)(H2O)2]·H2O (1), which has been characterized by single crystal X-ray diffraction, infrared spectroscopy, and elemental and thermogravimetric analyses. Complex 1 exhibits a binodal (4,8)-connected 3D framework with flu (412.612.84)(46)2 topology. The magnetic properties of 1 were investigated.
Weighing the Social and Ethical Considerations of Maternal-Fetal Surgery
Authors: Antiel Ryan M. , Flake Alan W. , Collura Christopher A. , Johnson Mark P. , Rintoul Natalie E. , Lantos John D. , Curlin Farr A. , Tilburt Jon C. , Brown Stephen D. , Feudtner Chris 
Published: November 2017

OBJECTIVES:
The ethics of maternal-fetal surgery involves weighing the importance of potential benefits, risks, and other consequences involving the pregnant woman, fetus, and other family members. We assessed clinicians’ ratings of the importance of 9 considerations relevant to maternal-fetal surgery.

METHODS:
This study was a discrete choice experiment contained within a 2015 national mail-based survey of 1200 neonatologists, pediatric surgeons, and maternal-fetal medicine physicians, with latent class analysis subsequently used to identify groups of physicians with similar ratings.

RESULTS:
Of 1176 eligible participants, 660 (56%) completed the discrete choice experiment. The highest-ranked consideration was of neonatal benefits, which was followed by consideration of the risk of maternal complications. By using latent class analysis, we identified 4 attitudinal groups with similar patterns of prioritization: “fetocentric” (n = 232), risk-sensitive (n = 197), maternal autonomy (n = 167), and family impact and social support (n = 64). Neonatologists were more likely to be in the fetocentric group, whereas surgeons were more likely to be in the risk-sensitive group, and maternal-fetal medicine physicians made up the largest percentage of the family impact and social support group.

CONCLUSIONS:
Physicians vary in how they weigh the importance of social and ethical considerations regarding maternal-fetal surgery. Understanding these differences may help prevent or mitigate disagreements or tensions that may arise in the management of these patients.
Reproduzierbarkeit und Variabilität der Thyroxin messung bei drei deutschen veterinärmedizinischen Laboren
Authors: Klinger Christoph , Classen Janine , Udraite Laura , Linek Monika , Mueller Ralf , Böhm Teresa 
Published: November 2017

ZusammenfassungZiel: Untersuchung der Reproduzierbarkeit von Serumtests auf Gesamtthyroxin (T4) in drei deutschen veterinärmedizinischen Laboren. Material und Methoden: Serumproben von 53 Hunden mit klinischem Verdacht auf Schilddrüsenunterfunktion wurden in fünf Aliquots aufgeteilt. Drei dieser Serumproben wurden mit unterschiedlichen Namen versehen und an jeweils ein Labor gesandt (davon zwei Proben zeitgleich und die dritte weitere 1–3 Tage später), jeweils eine weitere Serumprobe an zwei andere Labore. In Labor 1 erfolgte die T4-Messung mit einem Enzymimmunoassay, in Labor 2 und 3 mit einem Chemilumineszenz-Immunassay. Die Übereinstimmung der Werte zwischen den drei Laboren (im oder unter dem jeweiligen Referenzbereich) wurde evaluiert. Die Intra- und Inter-Assay-Variabilität wurde berechnet und die Übereinstimmung zwischen den Laboren und zwischen den an ein Labor geschickten Teilproben eines Patienten mit dem Cohens Kappa-Test überprüft. Ergebnisse: Bei 23/41 Hunden lagen die Werte bei allen Laboren einheitlich unter-, inner- oder oberhalb des jeweiligen Referenzbereichs. Der Cohens Kappa-Wert betrug bei Labor 2 für die Intra- und Inter-Assay-Übereinstimmung jeweils 1,0 (n = 15, vollständige Übereinstimmung), bei Labor 1 jeweils 0,33 (n = 16) und bei Labor 3 0,37 (Intra-Assay-) und 0,19 (Inter-AssayÜbereinstimmung) (n = 16; schwache Übereinstimmung). Die Übereinstimmung zwischen Labor 1 und 2 sowie Labor 1 und 3 war gering (κ = 0,30 bzw. 0,25), zwischen Labor 2 und 3 bestand eine hohe Übereinstimmung (κ = 0,68). Die Intra-Assay-Variabilität der Labore 1, 2 und 3 wurde mit 13,6%, 5,0% bzw. 10,4% ermittelt, die Inter-Assay-Variabilität mit 17,2%, 5,1% bzw. 17,4%. Schlussfolgerung und klinische Relevanz: Die variable Übereinstimmung der Auswertung von Thyroxinkonzentrationen derselben Serumprobe durch verschiedene Labore bzw. Bewertungszeitpunkte betont die hohe Relevanz der Interpretation solcher Werte im Kontext mit der vorliegenden Symptomatik und weiteren Laborwerten wie TSH-Konzentration.
Correlation between the FCEAI and diagnostic para meters in chronic enteropathies in 147 cats (2006–2012)
Authors: Moser Katharina , Teske Erik , Bomhard Wolf , Stockhaus Christian , Mitze Stefanie 
Published: November 2017

SummaryObjective: The Feline Chronic Enteropathy Activity Index (FCEAI) has been established as a quantitative index for disease activity in chronic enteropathies in cats. A definite diagnosis is aimed at histology with initial exclusion of extraintestinal causes by laboratory examinations, diagnostic imaging and endoscopy. The study aimed to examine diagnostic parameters and FCEAI in chronic gastroenteropathies. Materials and methods: A retrospective case review of 147 cats with chronic enteropathies was performed. In all patients, the FCEAI was established and endoscopy performed including biopsies and duodenal cytology. Histopathologic reports were reviewed for the diagnosis of lymphoma and architectural changes (epithelial integrity, villi/ gland atrophy, intestinal crypt atrophy, lymphangiectasia, epitheliotropism/infiltration of intraepithelial lymphocytes). A cytopathologic score (CS) and histopathologic score (HS) regarding lymphocytic intestinal infiltration were assigned. Statistical dependency analysis was used to determine correlations between the FCEAI, lymphoma, architectural changes, CS, HS, serum concentrations of cobalamin, folate and albumin. Results: The 147 cats consisted of predominately European Shorthair cats (n = 126), were mostly castrated (n = 127) and had a mean age of 9.8 (1–17) years. For the proven lymphoma group (12.2%; n = 18) and the non-lymphoma group a mean FCEAI of 7.3 (4–17) and 6.6 (2–13), respectively, was established. The FCEAI showed a low correlation with the CS (p = 0.010; R = 0.22) and intestinal villous atrophy (n = 121; p = 0.035; R = 0.19). Cats with a CS of 0 had a significant lower FCEAI score (p = 0.015) than cats with all other CSs. The histo- and cytopathologic scores were highly related (p < 0.001; R = 0.43). The gastric intraepithelial lymphocytic infiltration (n = 131) was significantly correlated to serum folate (p = 0.014; R = –0.56) and albumin (p = 0,048; R = –0.20). Conclusion: The FCEAI showed only a few correlations. Not only the grade of inflammation, but also the histologic architectural changes are of importance.
A new subgenus of <i>Heterotrigona</i> from New Guinea (Hymenoptera: Apidae)
Authors: Engel Michael S. , Rasmussen Claus 
Published: November 2017

A new subgenus is established within the Indomalayan stingless bee genus Heterotrigona Schwarz (Meliponini). Sahulotrigona Engel & Rasmussen, new subgenus, is distinguished from amongst other Heterotrigona, particularly the subgenus Platytrigona Moure, within which one of the two included species was previously placed. The subgenus presently includes two species from New Guinea: Heterotrigona (Sahulotrigona) paradisaea Engel & Rasmussen, new species, and H. (S.) atricornis (Smith), new combination. A key to the subgenera of Heterotrigona is provided and the species are tabulated, resulting in the following new combinations: Heterotrigona (Platytrigona) flaviventris (Friese), H. (P.) hobbyi (Schwarz), H. (P.) keyensis (Friese), H. (P.) lamingtonia (Cockerell), H. (P.) planifrons (Smith), H. (Sundatrigona) lieftincki (Sakagami & Inoue), and H. (Su.) moorei (Schwarz). The stingless bees of Papuasia are briefly summarized, and a key is presented to the genera and subgenera of Paupasian Meliponini.
Análisis comparativo entre el impuesto a las ventas en colombia y el impuesto al valor añadido en España
Authors: AJARDO-CALDERÓN CONSTANZA LORETH F , SUÁREZ AMAYA DORA CECILIA , SANTA FAJARDO LAURA MICHEL 
Published: November 2017

El estudio realizado sobre el Derecho Tributario comparado ha permitido abordar análisis desde el sistema tributario colombiano con otros países. En este proceso investigativo se conoce el marco histórico de los impuestos en Colombia; se comprenden los sistemas tributarios; se establece el estado del arte de los impuestos de carácter nacional; se construye un análisis comparativo de diferencias y similitudes en cuanto a los impuestos de carácter nacional, se complementa con el análisis del sistema de retención en la fuente y los convenios para evitar la doble imposición para prevenir la evasión fiscal en materia de impuestos.
El presente artículo da cuenta de uno de los objetivos propuestos, en donde se logra analizar los elementos básicos del impuesto a las ventas en Colombia con el impuesto al valor añadido en España. Con este análisis comparativo se sintetiza y se da a conocer una breve reseña histórica del impuesto a las ventas en Colombia hasta presentar el desarrollo de las normas vigentes que lo regulan, las características principales, los elementos tributarios, las formas de operar en ambos países y las obligaciones fiscales que genera no solo en Colombia sino también para España.
Lo anterior es de interés para la comunidad académica y profesional, para quienes puedan abordar los hechos económicos y fiscales en un ambiente competitivo que exige el mundo actual.
Gestión del conocimiento y principales aportes de la revista Criterio Libre
Authors: Ortiz Bojacá José Joaquín 
Published: November 2017

La gestión del conocimiento se ha convertido en un poderoso instrumentopara auscultar y desarrollar parámetros en la producción de conocimiento, locual es vital para el sector educativo y para nuestro caso, el correspondientea la educación superior en los procesos investigativos y sus relaciones conla docencia y la proyección social. Por tal motivo en el presente artículo nosproponemos desarrollar un esquema integrador de la aplicación de esteimportante concepto, a la difusión y divulgación del conocimiento generadoen la investigación y la reflexión que se plasma en las revistas científicas,enfocándonos en el caso de la Revista CRITERIO LIBRE y específicamenteen el análisis de los contenidos y aportes al conocimiento emanados de laedición anterior (No. 20), como un modelo que se desarrollará continuamentea partir de ese número. La metodología utilizada es de tipo mixto, en dondelo cualitativo se fundamenta en los enfoques hermenéutico-interpretativo ylo cuantitativo en el enfoque bibliométrico. Se llega a la construcción de unmodelo que se propone a la comunidad de editores de revistas en nuestromedio, como un mecanismo que facilita la utilización productiva de este importante instrumento de difusión y divulgación del conocimiento como loson las revistas científicas.
Realidades Ambientales de los Cuerpos de Agua del departamento del Atlántico, Colombia
Authors: Oyaga Martínez Rafael Fernando 
Published: November 2017

Se reporta el trabajo de investigación desarrollado durante cuatro años en el departamento del Atlántico, Colombia, mediante el uso de indicadores biológicos con el fin de establecer la calidad ambiental de los cuerpos de agua naturales del Departamento, teniendo en cuenta que la mayor parte de ellos son reportados con calidad dudosa.
PERANCANGAN DAN PEMBUATAN SISTEM KOMPETISI SEPAK BOLA BERBASIS WEB
Authors: Yudhanto Yudho , Putra Andesta 
Published: November 2017

<p>Football is one of the most famous sport in the world. In Indonesia, this sport has become a favored game that people of all ages. However, from the various tournaments that have been held, there are some drawbacks one of which is the lack of statistical data regarding the schedule and complete pertadingan that can be known quickly by football fans, football observers, club officials and players themselves. Therefore, the need for a system to simplify the process of delivering all the information about the competition of football going to the actors of football.</p><p>Implementation of the creation of a system of web-based football competition using PHP and MySQL that can provide information on the match statistics from the competition is complete and can be accessed quickly by the actors of football. </p>
HUBUNGAN ANTARA PERNIKAHAN USIA REMAJA DENGAN KETAHANAN KELUARGA
Authors: Lestari Rahayu Puji 
Published: November 2017

Penelitian bertujuan untuk mengetahui dan menganalisis hubungan antara pernikahan usia remaja dengan ketahanan keluarga. Penelitian dilakukan di wilayah Desa Lubang Buaya, Kecamatan Setu, Kabupaten Bekasi, Bekasi, selama bulan Juni 2015 hingga Juli

2015. Metode penelitian menggunakan metode survei dengan pendekatan kuantitatif

korelasional. Populasi penelitian ini adalah pasangan suami/istri yang menikah pada usia remaja yaitu usi 12-21 tahun di wilayah Desa Lubang Buaya, Kecamatan Setu, Kabupaten Bekasi dan masih dalam ikatan pernikahan yang menikah pada bulan januari hingga bulan juni 2011. Sampel penelitian berjumlah 68 responden. Hasil uji normalitas data berdistribusi normal. Hasil uji hipotesis yaitu uji signifikasn koefisien kolerasi adalah signifikan. Koefisien korelasi dengan menggunakan rumus korelas ional Lamda (la) menghasilkan = 0,2. Hasil hipotesis pada penelitian dan uji mengenai hubungan diperoleh bahwa terdapat hubungan antara pernikahan usia remaja dengan ketahanan keluarga di wilayah Desa Lubang Buaya, Kecamatan Setu, Kabupaten Bekasi. Koefisien determinasi yang diperoleh sebesar 4%. Hasil ini menunjukkan bahwa pernikahan usia remaja 4% mempengaruhi hasil ketahanan keluarga. Kemudian sisanya 96% ditentukan oleh variabel lain.
PENGARUH SUMBER BELAJAR DALAM KELUARGA TERHADAP HASIL BELAJAR SISWA
Authors: Siregar Septi Mulyanti , Tarma Tarma , Doriza Shinta 
Published: November 2017

Tujuan dari penelitian ini adalah untuk mengetahui pengaruh sumber belajar dalam keluarga terhadap hasil belajar mata pelajaran prakarya pada siswa kelas VIII di SMP Negeri 2 Bogor. Penelitian ini dilakukan di SMP Negeri 2 Bogor pada bulan Maret - Mei 2015 menggunakan metode survei dengan pendekatan korelasi. Adapun jumlah sampel sebanyak 177 orang yang terbagi dalam lima kelas dengan menggunakan teknik simple random sampling. Variabel independen penelitian ini yaitu sumber belajar dalam keluarga dan variabel dependen yaitu hasil belajar prakarya. Data hasil belajar didapat dari dokumentasi hasil rata-rata ulangan harian siswa yang merupakan data sekunder. Data sumber belajar dalam keluarga didapat melalui kuesioner yang diisi oleh respon den. Data tersebut kemudian diuji validitas dan realibilitas, lalu di analisis melalui teknik regresi sederhana. Hipotesis diuji dengan signifikan pada 0,05 margin of error menggunakan t-test dan analisis varians (ANOVA). Maka hasil penelitian menunjukkan adanya pengaruh yang signifikan antara sumber belajar dalam keluarga terhadap hasil belajar dengan persamaan regresi Y = 50,736 + 0,291X. Ini berarti bahwa ada pengaruh yang signifikan sumber belajar dalam keluarga terhadap hasil belajar.
Flow Assurance Analysis on a Subsea Network Offshore Peru: Lobitos Asset - Case Study
Authors: Buitrago J. H. , Cardenas C. Y. , Saldana A. Agurto , Russo G. A. 
Published: November 2017

Abstract
Producing from shallow waters offshore Peru, Lobitos is a mature Light Oil asset operated by SAVIA Peru S.A. The operator undertook the task of building a network model that included production platforms, pipelines and processing facilities. Given the operating conditions and produced fluids composition, paraffin formation was identified as a primary flow assurance issue in the system. This paper describes the flow assurance analysis on the transfer lines, and discusses the findings and recommendations.
The production system comprises twenty offshore platforms interconnected via four subsea pipeline networks: high pressure gas-lift gas, low pressure gas, liquids, and sales gas. Compression occurs at selected key platforms. The twenty platforms and the four pipeline networks are combined into a single complex model able to reproduce the hydraulic behavior and the flow trajectories under any conditions imposed on the system. The model enables the operator to predict the onset of hydrates, wax, and asphalthenes. With the help of specialized software, a pressure-temperature (P-T) diagram, along with solid-liquid phase envelopes, were plotted for each of the liquid transfer lines.
Analysis of the system revealed that among the organic scales, paraffin was creating an observable impairment to flow. Given the volume of liquids transported and the fluid composition, the sea-shore transfer lines were identified as critical points for paraffin deposition. With wax content as low as 0.6 % m/m, the line connecting the CC-ZZ-PRIMAVERA facilities is the most paraffin-affected pipe, given that wax will precipitate at temperatures as high as 105° F (41° C). The hottest point in the line only reaches 77° F (25° C). The pipe connecting the LO10-PRIMAVERA facility is also subject to paraffin precipitation. In this case, the paraffin would become unstable at 90° F (32° C), but given that the fluids only reach 63° F (17° C) and the line transports about 40% of the produced liquids, it was identified as another critical point in the system. The line from the H-PRIMAVERA facility is the least affected, given that all fluid comes from shallow, warmer waters, and the volume transported is only 1% of the production.
Because the infrastructure is old, pigging operations are ruled out; however, since most of the wells are gas lifted, it is recommended that hot gas be injected wherever possible to increase the wellhead temperatures. Additionally, two extra-points of paraffin solvents have been implemented.
The use of an integrated model that rigorously accounted for mass and heat transfer phenomena along with proper fluid characterization and a specialized flow assurance algorithm enabled the accurate prediction of paraffin deposition and identification of key points for implementing remedial measures.
Stress Dependent Capillary Dominated Flow in Matrix Around Hydraulic Fractures in Shale Reservoirs and its Impact on Well Deliverability
Authors: Moghaddam Rasoul Nazari , Foroozesh Jalal 
Published: November 2017

AbstractUnderstanding the mechanisms of fluid flow in unconventional shale reservoirs is of great interest as these mechanisms have significant impacts on long term economic development of such reservoirs. In shale rocks, the average size of pore/throat is much smaller than the average pore size in conventional rocks which results in higher capillary pressures. Such high capillary pressures can strongly influence the two-phase flow specifically around the wellbore by preventing the fluid flow from matrix to hydraulic fractures and resulting in liquid holdup. In addition, the pronounced poroelastic properties of shale matrix make the flow properties to be extremely sensitive to the effective stress. As a result, the production rate and well deliverability of shale reservoirs can be severely affected by stress dependent capillary pressure around the wellbore area while this impact has not been investigated yet. In this study, a numerical approach was adapted to solve the analytical formulation of two-phase flow considering the capillary and viscous forces in matrix around hydraulic fractures. To evaluate the integrity of the simulation results, the predicted liquid saturation profiles were compared with some experimental data reported in the literature where liquid saturation profiles were measured by CT scanner under both viscous and capillary dominated flow conditions. Then, the two phase flow in tight formations were simulated and the obtained liquid saturation profiles were used to estimate the equivalent relative permeability curves at different stress conditions. The results showed that the liquid holdup in the matrix around the hydraulic fractures can be accumulated even up to a meter that significantly reduces the relative permeability values in this zone. This liquid holdup (or capillary end effects) depends on several parameters including effective stress applied to the formations. In addition, the effects of viscous forces on liquid holdup were investigated in terms of fluid velocity. It is found that, a higher fluid velocity(or flow rate) which can be achieved by increasing drawdown pressure (reduction of bottom hole pressure) can cause a significant damage to the matrix permeability around the hydraulic fractures. This damage also adversely affects flow and can promote the capillary dominated flow. The results of this study improve our understanding of flow mechanisms in unconventional reservoir rocks. This knowledge is required for shale reservoir simulation and cost effective production from hydraulic fractured wells in shale reservoirs.