bluuebunny/crossref_metadata_2025_split huggingface dataset:
Merchant Energy Trading in a Network
Authors: Nadarajah Selvaprabu , Secomandi Nicola 
Published: August 2018

We formulate the merchant trading of energy in a network of storage and transport assets as a Markov decision process with uncertain energy prices, generalizing known models. Because of the intractability of our model, we develop heuristics and both lower and dual (upper) bounds on the optimal policy value estimated within Monte Carlo simulation. We achieve tractability using linear optimization, extending near optimal approximate dynamic programming techniques for the case of a single storage asset, versions of two of which are commercially available. We propose (i) a generalization of a deterministic reoptimization heuristic, (ii) an iterative version of the least squares Monte Carlo approach, and (iii) a perfect information dual bound. We apply our methods to a set of realistic natural gas instances. The combination of our reoptimization heuristic and dual bound emerges as a practical approach to nearly optimally solve our model. Our iterative least squares Monte Carlo heuristic is also close to optimal. Compared to our other heuristic, it exhibits slightly larger optimality gaps and requires some tuning, but is faster to execute in some cases. Our methods could enhance single energy storage asset software and have potential relevance beyond our specific application.The e-companion is available at https://doi.org/10.1287/opre.2018.1732 .
ETİK KODLARIN VEKÂLET MALİYETLERİ ÜZERİNDEKİ ETKİSİ İLE İLGİLİ BİR ARAŞTIRMA
Authors: KARAOĞLU Ahmet Oğuz , SARUHAN Şadi Can 
Published: August 2018

Son 25-30 yıldır,
siyasetten bilime, iş dünyasından medya dünyasına kadar hemen her alanda ahlaki
davranış sorunları yaygınlaşmış, bu konu ile ilgili görüşler dile getirilmeye
başlanmıştır.Bunun bir sonucu olarak işletme yönetiminde sorumluluk sahibi
olan, işletmenin sahipleri adına yönetimi üstlenen yöneticilere,
karşılaşacakları ahlaki seçimler içeren problemlerde yol gösterebilecek
davranış standartlarının her birinin, kodlar halinde belirtilip paydaşlarıa
açıklanmasına yönelik çalışmalar dikkat çekmeye başlamıştır. Bu çalışmalar ile
her meslekte etik kodlar oluşturma ihtiyacı doğmuş ve bu yöndeki çabalar
artmıştır. Katlanılan vekâlet maliyetlerine
rağmen, giderek daha büyük skandalların ortaya çıkması ve yönetim kademelerince
zaman zaman tercih edilen etik dışı karar seçeneklerinin yol açtığı zararların
önlenmesinde çeşitli önlemler ortaya atılmaktadır. Bu konu ile bağlantılı
olarak, kurucu ailenin şirket anayasası doğrultusunda işletme içerisinde ilke
haline getirme çabası içerisinde olduğu
ve eğitimler, kurallar, yönergeler ortaya koyarak oluşturmaya çalıştığı,
sonrasında ise tüm paydaşlarına açıklayarak uymayı taahhüt ettiği etik
kodların, bu yönde etkili olup olamayacağı düşünülür ve tartışılır hale
gelmiştir.
Physical activity and physical fitness as protective factors of adolescent health
Authors: Lukács Andrea , Sasvári Péter , Kiss-Tóth Emőke 
Published: August 2018

Abstract

Objective
This quantitative correlational design study aimed to examine the variation in adolescent health and lifestyle characteristics across self-reported physical activity (PA) and physical fitness (PF) levels.

Methods
Data were collected from 422 students (50.2% males) (16.33 SD = 1.66 y/o) attending a high school. An online questionnaire was used to gather data on the following characteristics: self-reported well-being, overall life satisfaction, depression (including self-harm and suicidal ideation), perceived health status, eating disorders, sleepiness, substance use (alcohol, tobacco and illicit drug use), body mass index, PA participation and PF levels.

Results
Of the participants, 42.4% reported at least 5 days of PA a week for 60 min per day. These high active individuals had significantly better well-being, health status, life satisfaction, PF and consumed fewer alcohol beverages. High PA and better PF inversely correlated with depression.

Conclusions
It seems that high PA and better PF have a positive impact on adolescent perceived health, health-risk behaviors and mental health. Increased levels of PA can play a vital role in the primary care, prevention of health risks and in adolescent health promotion. Accordingly, educational institutions are an excellent setting to promote and provide sport facilities and encourage students to be more physically active.
Natural colloid mobilization and leaching in wettable and water repellent soil under saturated condition
Authors: Sepehrnia Nasrollah , Fishkis Olga , Huwe Bernd , Bachmann Jörg 
Published: August 2018

AbstractThe coupled transport of pollutants that are adsorbed to colloidal particles has always been a major topic for environmental sciences due to many unfavorable effects on soils and groundwater. This laboratory column study was conducted under saturated moisture conditions to compare the hydrophobic character of the suspended and mobilized colloids in the percolates released from a wettable subsoil and a water repellent topsoil. Both soils with different organic matter content were analyzed for wettability changes before and after leaching using sessile drop contact angles as well as water and ethanol sorptivity curves, summarized as repellency index. Hydrophobicity of the effluent suspensions was assessed using the C18 adsorption method. Water repellency level of the repellent soil decreased after leaching but remained on a lower level of water repellency, while, the wettable soil remained wettable. The leached colloids from the repellent soil were predominantly hydrophilic and the percentage of the hydrophobic colloid fraction in the effluent did not systematically changed with time. Total colloid release depended on soil carbon stock but not on soil wettability. Our results suggest that due to the respective character of transported colloids a similar co-transport mechanism for pollutants may occur which does not depend explicitly on soil wettability of the releasing horizon, but could be more affected by total SOM content. Further studies with a wider range of soils are necessary to determine if the dominant hydrophilic character of leached colloids is typical. Due to the mostly hydrophilic colloid character we conclude also that changes in wettability status, i.e. of wettable subsoil horizons due to the leachate, may not necessarily occur very fast, even when the overlaying topsoil is a repellent soil horizon with a high organic matter content.
Electron Work Functions of (H K L)-Surfaces of W, Re, and Cu Crystals
Authors: Surma S.A. , Brona J. , Ciszewski A. 
Published: August 2018

AbstractWork function (WF) and some physicochemical data for several most prominent crystal planes of three metals of typical structures are calculated within the linear approximation employing the surface dipole and 2D gas models. “Composite” crystal of a homogeneous bulk phase and a thick surface composed of eight (h k l)-oriented facets with different unsaturated bonds is treated as a nine-phase nine-component system with two degrees of freedom. It contains the two-dimensional metal-lattice plasma of free electrons and the immobile atom-core network. For twenty four (h k l) surfaces, the WF and dipole barrier term, chemical and electrostatic potential levels, electron charge densities, surface dipole fields, and other parameters are calculated and tabularized. WF values obtained from the thermodynamics based formula are compared to the ones obtained from the quantum mechanics based formula, which shows good agreement with experiment and also reveals a specific deviation in the case of field emission method for the most packed plane. A set of accurate face dependent data can be of interest to electronics and materials science workers
Field Permeability Tests: Importance of Calibration and Synchronous Monitoring for Barometric Pressure Sensors
Authors: Zhang Lu , Chapuis Robert P. , Marefat Vahid 
Published: August 2018

Abstract
Pressure transducers (PTs) and an atmospheric pressure transducer (APT) were used to register test data during two types of permeability tests, which were performed in 14 wells monitoring a confined aquifer installed in the lab, and a field rising-head test in clay. The constant-head tests were performed using a peristaltic pump and thus functioned as constant flow rate tests until stabilization of the water level in the well riser pipe. The rising-head tests were started by the sudden removal of a slug of water. This article presents, first, the method used to calibrate the transducers to assess their systematic calibration error (offset) values. Then, it quantifies the influence of synchronized monitoring for the (PT-APT) pair on short- and long-term test data, which had never been done before. The results indicate that the pair calibration cannot be neglected and that the synchronized monitoring is important for all tests, except maybe for a short-duration variable-head test. For most tests, however, the barometric fluctuation with time plays a significant role.
Lithium Extraction to Determine Ammonium in the Exchange Complex of Bentonite
Authors: Setz Melissa C. , Benson Craig H. , Bradshaw Sabrina L. , Tian Kuo 
Published: August 2018

AbstractASTM D7503, Standard Test Method for Measuring the Exchange Complex and Cation Exchange Capacity of Inorganic Fine-Grained Soils, is used to determine soluble and bound cation concentrations as well as the cation exchange capacity of fine-grained soils used in barrier systems for waste containment, including bentonite in geosynthetic clay liners (GCLs). ASTM D7503 prescribes the use of 1 M ammonium acetate (NH4OAc) as an extraction liquid for bound cations, which masks ammonium (NH4+) that may be in the exchange complex in bentonite in contact with municipal solid waste (MSW) leachate. A 1 M lithium bromide (LiBr) extraction liquid is proposed as an alternative to the 1 M NH4OAc in ASTM D7503 so that NH4+ in the exchange complex can be quantified without interfering with measurement of other bound cations of interest for waste containment. Nearly the same distribution of bound major cations was obtained using the method in ASTM D7503 and the proposed alternative using 1 M LiBr for two bentonites from two new GCLs (not permeated). Using the 1 M LiBr method revealed substantial NH4+ bound to eight bentonites obtained from GCLs that had been permeated with different MSW leachates. The bound NH4+ concentration varied directly with NH4+ concentration in the leachates, and this variance explained a charge imbalance obtained from tests conducted on the bentonites using the standard method in ASTM D7503.
Brexit, MiFIR und MiFID II: Grenzüberschreitende Wertpapierdienstleistungen durch Drittlandfirmen und die anwendbaren Organisations- und Wohlverhaltenspflichten
Authors: Schuster Gunnar , Pitz Sebastian , Matzen Friedrich-Asmus 
Published: August 2018

Zusammenfassung
Anlässlich des bevorstehenden Brexits und einer Reihe aktueller Rechtsänderungen verschafft der vorliegende Beitrag dem Leser einen Überblick über die Möglichkeiten von Wertpapierdienstleitungsunternehmen aus Drittstaaten („Drittlandfirmen“), gegenüber in Deutschland ansässigen Kunden Wertpapierdienstleistungen zu erbringen. Der Beitrag setzt sich dabei schwerpunkmäßig mit den anwendbaren Organisations- und Wohlverhaltenspflichten des deutschen Wertpapierhandelsgesetzes (WpHG) auseinander.
Determination of antimicrobial activity of some 1,2,4-triazole derivatives
Authors: Alrawashdeh M. S. M. 
Published: August 2018

We carried out MIC of the derivatives of 1,2,4-triazole II (4-((5-nitrofuran-2-yl)methyleneamino)-1-propyl-4H-1,2,4-triazolium bromide) and I (N-((5-nitrofuran-2-yl)methylene)-4H-4-amino-1,2,4-triazolidium chloride) against Escherichia coli ATCC 3912/4 and E. coli k88ad, Staphylococcus aureus ATCC 25923 and S. aureus k99, Klebsiella pneumonia k56 and Salmonella typhimurium 144, S. enteritidis. All test cultures were sensitive to compound II at concentrations of 1,25–0,039 μg/ml. Similar MIC (0,039 μg/ml) of compounds II and I were set for E. coli k88a and S. aureus k99 test cultures – 0,156 μg/ml. Only S. aureus ATCC 25923 and K. pneumonia k56 had sensitivity to ceftriaxone (MIC = 0,097 μg/ml). Antiviral activity of Trifuzol (piperidine 2-[5-(furan-2-il)-4-phenil-1,2,4-triazol-3-ilthio]acetate) and avistim (morpholines 3-(4-pyridyl)-1,2,4-triazolil-5-thioacetate) against the chicken infectious bronchitis virus (VIB) strain 4/91 was characterized by a decrease in mortality and pathological changes of chicken embryos (CE) which were induced by the virus. Death of infected CE provoked by the strain 4/91 of VIB in dilution 10–3 occurred at 57.1%. The reduction in the percentage of deaths of CE infected by the virus in dilution 10–3 in the presence of Avistim was 28.6%, and with Trifuzol 14.3%. The use of avistim and Trifuzol compounds reduced VIB infectious activity when it was cultivated in CE, reducing the titre of the virus (strain 4/91) by 3 lg EID 50 cm–3.
The effect of third-generation aromatase inhibitors on aromatase avtivity in visceral adipose tissue
Authors: Lytkin D. V. , Zagayko A. L. , Briukhanova T. O. 
Published: August 2018

Pathogenesis and clinical manifestations of metabolic syndrome (and other conditions characterized by the growth of fat mass and decreased adiponectin content) is associated with an imbalance of sex hormones, which develops under the influence of increased aromatase activity in adipose tissue. Drugs of the aromatase inhibitors therapeutic group are able to suppress the course of the aromatase reaction in the central and peripheral organs and tissues. The aim of our study was to establish the relationship between levels of serum adiponectin and adipose tissue aromatase avtivity in Syrian hamsters of different ages and gender with experimental metabolic syndrome and study the effect of aromatase inhibitors on these indicators. Experimental metabolic syndrome in animals was induced by a high-fat and fructose diet. The drugs were administered during the 21-st day in doses of 3.086 (exemestane), 0.309 (letrozole) and 0.126 mg/kg (anastrozole). The aromatase activity of the visceral adipose tissue was determined by the modified kinetic method based on the amount of the reaction product estradiol converted from testosterone. The content of estradiol in adipose tissue homogenate and serum adiponectin levels were measured by the immune enzyme method. The results showed a high inverse correlation between serum adiponectin and adipose tissue aromatase activity in hamsters. Aromatase inhibitors caused a decrease in the adipose tissue aromatase activity and increase in serum adiponectin levels. Letrazol demonstrated the greatest effect, it reduced aromatase activity in adipose tissue by 72–84% and increased serum adiponectin content by 1.6–1.8 times. At the same time, intra-group correlation of the studied parameters was significant. The results show the relationship between adiponectin level and adipose tissue aromatase activity and ability to change these rates by the way of aromatase inhibitors, which may be useful in clinical practice. Third-generation aromatase inhibitors are promising drugs for metabolic syndrome treatment and require further study in clinical trials.
Schuster, Sven y Hernández, Óscar Daniel, eds. Imaginando América Latina. Historia y cultura visual, siglos XIX-XXI. Bogotá: Universidad del Rosario, 2017.
Authors: Vargas Alvarez Sebastián 
Published: August 2018

Como su título lo sugiere, el volumen colectivo aquí reseñado examina la importancia de las imágenes en la historia moderna y contemporánea de América Latina, a la vez que plantea una relexión sobre las posibilidades documentales y analíticas que estas ofrecen para el estudio de nuestro pasado. El libro es un ejemplo de cómo el campo de los estudios visuales ha impactado de manera positiva la historiografía, lo cual ha permitido la aparición de diversas investigaciones que abordan la relación entre cultura visual e historia2 . Como nos recuerda Peter Burke en la introducción de su libro Visto y no visto, cada vez son más los historiadores que se atreven a trabajar con imágenes, empleándolas no como meras ilustraciones, sino como documentos históricos3 . Para ir más lejos, podríamos añadir que son cada vez más los historiadores que usan las imágenes no solo como fuentes, sino como parte central de sus propuestas narrativas y explicativas4 . Los textos reunidos en Imaginando América Latina son casos de estudio en donde «la historia se escribe a partir de imágenes», y se plantea todo el tiempo la pregunta por el lugar de la imagen en el oicio de historiador, en un contexto de «hipervisualidad contemporánea», caracterizado por la amplia producción, circulación y consumo de imágenes en diversos medios, principalmente en el internet (p. 2).
O cogito revisitado
Authors: Leite Nina Virgínia de Araújo 
Published: August 2018

The present paper aims at discussing the questions related to Linguistics and Cognition from the psychoanalytical perspective, focusing on the notion of a subject of modern science. The strategy for doing this centres on re-visiting the cartesian cogito and demonstrating the linguistic nature of the subjective experience implied in the inauguration of the so called modern science. It demonstrates how the freudian discoveries can be taken as necessary to build a notion of subjectivity compatible to the scientific status of Linguistics.
Characteristics of Australian urban residential water users: implications for water demand management and whole of the system water accounting framework
Authors: Barrett Greg , Wallace Margaret 
Published: August 2018

Data from the Australian Bureau of Statistics, Household Expenditure Survey for 1998/99, are used to investigate the characteristics of households with a high per capita water use in Canberra, Australia's capital city. The results indicate that higher per capita water use is a function of household size (with large households achieving economies of size by sharing water consuming resources) and household income (with wealthy individuals using more water per capita).
Linking these findings to Australian Bureau of Statistics projections of shrinking household size, the authors conclude that the resultant decline in household efficiency will drive up the demand for water, unless offset by demand management policies that focus not just on consumer behaviour (e.g. water restrictions) but also on the water efficiency of housing and domestic water-using appliances.
Pengaruh jaminan kesehatan terhadap pemanfaatan pelayanan kesehatan primer di perkotaan Indonesia: adilkah bagi masyarakat miskin?
Authors: Djunawan Achmad 
Published: August 2018

Tujuan: Studi ini memberikan gambaran pengaruh jaminan kesehatan terhadap pemanfaatan pelayanan kesehatan primer perkotaan di Indonesia. Metode: Penelitian ini menganalisis data (IFLS 5) dengan rancangan penelitian cross sectional menggunakan uji regresi logistik. Sampel penelitian adalah penduduk kota di 13 provinsi Indonesia yang berusia 15 tahun ke atas. Hasil: Total responden yang didapat sebesar 2.563 responden, 35% responden menggunakan pelayanan kesehatan pemerintah. 39,72% responden belum memiliki jaminan kesehatan. Jaminan kesehtatan mempunyai pengaruh terhadap pemanfaatan pelayanan kesehatan (p<0,05). Simpulan: Perlu adanya kebijakan untuk meningkatkan pemanfaatan pelayanan kesehatan milik pemerintah sebagai fasilitas kesehatan propoor dan meningkatkan cakupan jaminan kesehatan yang berkeadilan ke seluruh masyarakat khususnya masyarakat miskin.
The trend of consumption pattern among college students in Malang city
Authors: Adelina Rany 
Published: August 2018

This study was conducted to know the trend of consumption pattern of the college student in Malang city. This case-case study with 397 participants was recruited voluntarily. Participants were given the FFQ (Food Frequency Questionnaire) questionnaire containing 10 categories including staple foods, vegetables, fruits, meat, fast food, fish, beans, dairy products, drinks, and supplements. There were six frequencies assessed in this study such as' more than 1 times a day ',' 1 times a day ',' 4-6 times a week ',' 1-3 times a week ',' 1-3 times a month ',' never '. Statistical analysis was used in the form of descriptive frequency. This study found that the staple food category showed the highest consumption of white rice more than 1 times a day (80.4%). Fast food category showed the most consumption in instant noodles 1-3 times a week (35.9%). The meat category showed s the highest consumption in chickens 4-6 times a week (27.2%). Category of fish showed the most consumption in fresh fish 1-3 times a week (28%). Nuts category showed the highest consumption of 4-6 times a week in Tempe (34.3%) and tofu (33%). Vegetable category showed the most consumption for 1-3 times a week in spinach and watercress respectively by 35%. The category of fruits showed the highest consumption of oranges (34.8%) 1-3 times a month. Dairy product category showed the highest consumption for 1-3 times a month on ice cream (40.1%). Drink category showed the most consumption of fruit juice 1-3 times a week (32.2%). Finally, as many as 78.3% never consume supplements, but the most consumption of honey (19.9%) for 1-3 times a month. This study concludes that instant noodle consumption is relatively high while vegetables and fruits are not consumed daily. Then, chicken is more often consumed than fresh fish by college students in Malang city.
Analisis permasalahan penggunaan dana alokasi khusus (DAK) non fisik bidang kesehatan program jampersal di kota Depok tahun 2016
Authors: Kurniawati Ayu 
Published: August 2018

Angka kematian dan kesakitan ibu hamil, bersalin dan nifas merupakan masalah yang kompleks. Akses masyarakat terhadap persalinan merupakan salah satu faktor penting untuk menurunkan AKI dan AKB. Salah satu strategi yang dapat dilakukan adalah melalui program Jaminan Persalinan (Jampersal). Jampersal merupakan perluasan program jaminan kesehatan masyarakat (Jamkesmas) yang bertujuan meningkatkan akses terhadap pelayanan kehamilan, persalinan, nifas, bayi baru lahir dan KB pasca persalinan yang dilakukan oleh tenaga kesehatan yang kompeten dan berwenang di fasilitas kesehatan dalam rangka menurunkan AKI dan AKB (Kemenkes RI, 2012). Berdasarkan data Laporan e-Renggar yang dikumpulkan oleh Biro Perencanaan dan Anggaran Kementerian Kesehatan (Kementerian Kesehatan, 2017), diketahui bahwa beberapa kabupaten/ kota tidak dapat melakukan penyerapan anggaran DAK nonfisik program jampersal, salah satunya adalah kota Depok. Tujuan penelitian ini adalah untuk mengetahui secara mendalam potret penggunaan DAK non fisik bidang kesehatan program Jampersal di Kota Depok tahun 2016. Penelitian ini dilakukan dengan pendekatan kualitatif dengan melakukan wawancara mendalam. Informan yang diwawancarai adalah pembuat kebijakan di Pusat, penanggung jawab program di Dinas Kesehatan serta pelaksana program di Puskesmas. Instrumen yang digunakan adalah panduan wawancara mendalam dan dilengkapi dengan alat perekam suara. Hasil dan kesimpulan yang didapat adalah informasi kendala/masalah dalam pemanfaatan dana DAK Non Fisik program Jampersal di Kota Depok pada tahun 2016 yaitu proses penerbitan juknis cukup terlambat, kurang fleksibel dan kurang disosialisasikan, perencanaan dan penganggaran dilakukan secara Top Down tanpa melibatkan daerah, SDM pelaksana program Jampersal di kota Depok sudah cukup berkualitas namun jumlahnya masih kurang memadai, dan implementasi Juknis belum mampu mengakomodir kebutuhan di daerah akibatnya penyerapan dana DAK Non Fisik program Jampersal tidak dapat terserap dengan maksimal.