bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chalcones as Analytical Reagents of Aluminum: Stability, Thermodynamic and Kinetic Study
Authors: Muñoz Vanesa A. , Kretek Carolina G. , Montaña M. Paulina , Pappano Nora  B. , Debattista Nora  B. , Ferrari Gabriela V. 
Published: December 2014

Abstract
Chalcones, a group of polyphenolic compounds, has been studied for
a long time due to their biological properties and their ability as
analytical reagents. In this work the stability and thermodynamic
parameters concerning the fotmation in ethanolic medium of two
chalcone–aluminium complexes
(2′,3-dihydroxychalcone-Al(III) and
2′,4′,3-trihydroxychalcone-Al(III)) were
studied and a kinetic study of the formation reaction was aslo
performed. Both systems showed 1:1 L : M stoichiometry and
stability constants at four temperatures were
determined. Thermodynamic parameters indicate that both formation
reactions are endothermic and driving force is entropic. Kinetic study
revealed that
2′,4′,3-trihydroxychalcone-Al(III)
formation is faster than
2′,3-dihydroxyclacone-Al(III), a factor which can be
interesting when proposing new analytical reagents.
A Framework Model for Assessing Sustainability Strategies for Tourism Green Supply Chain Management
Authors: Chu Chih-Peng , Chung Kuo-Cheng 
Published: December 2014

Abstract
Environmental awareness is growing worldwide. Building green supply-chain management has become a major challenge for corporations as they strive to contribute to sustainable societies. Meanwhile, supply chain management has recently become a new research topic in tourism studies. This study proposed integrating the balanced score card (BSC), a widely used strategic tool, with the analytic network process (ANP) model to develop tourism green supply chain management (TGSCM) indicators. The results indicated that current market dynamics and growth potential can be understood through the TGSCM. Selecting key factors using the BSC can help identify the balance point between a company’s revenues and its responsibility for environmental protection, thus enabling a unique tourism operations model by which companies can profit while protecting the environment.
Segregation of a Spontaneous Klrd1 (CD94) Mutation in DBA/2 Mouse Substrains
Authors: Shin Dai-Lun , Pandey Ashutosh K , Ziebarth Jesse Dylan , Mulligan Megan K , Williams Robert W , Geffers Robert , Hatesuer Bastian , Schughart Klaus , Wilk Esther 
Published: December 2014

Abstract
Current model DBA/2J (D2J) mice lack CD94 expression due to a deletion spanning the last coding exon of the Klrd1 gene that occurred in the mid- to late 1980s. In contrast, DBA/2JRj (D2Rj) mice, crosses derived from DBA/2J before 1984, and C57BL/6J (B6) mice lack the deletion and have normal CD94 expression. For example, BXD lines (BXD1–32) generated in the 1970s by crossing B6 and D2J do not segregate for the exonic deletion and have high expression, whereas BXD lines 33 and greater were generated after 1990 are segregating for the deletion and have highly variable Klrd1 expression. We performed quantitative trait locus analysis of Klrd1 expression by using BXD lines with different generation times and found that the expression difference in Klrd1 in the later BXD set is driven by a strong cis-acting expression quantitative trait locus. Although the Klrd1/CD94 locus is essential for mousepox resistance, the genetic variation among D2 substrains and the later set of BXD strains is not associated with susceptibility to the Influenza A virus PR8 strain. Substrains with nearly identical genetic backgrounds that are segregating functional variants such as the Klrd1 deletion are useful genetic tools to investigate biological function.
Axiology on the Integration of Knowledge, Islam and Science
Authors: Zein Mas’ud 
Published: December 2014

The integration of Islamic and science was done through integration-interconnected, referring to ontological, epistemological dan axiological perspectives. This paper will focus on the integration of Islam and science from axiological perspective. In the view of axiology, science is seen as neutral and value-free; the value of science is given by its users. This condition motivates Muslim scholars to reintegrate science and religion. The first attempt made is my giving ideas on the Islamization of science. The attempt to Islamize the science in the Islamic world is dilemmatic, whether to wrap western science with the label of Islam or Islamic, or transforming religious norms based the Qur’an and the Hadith to fit empirical data. Both strategies are difficult if the effort is not based on the critic of epistemology.
Optimizing Reduced Graphene Oxide with Metallic Nanoparticles for Increasing the Efficiency of Proton Exchange Membrane Fuel Cells
Authors: Isseroff Rebecca , Chen Arthur , Blackburn Lee , Lish Justin , Han Long Tao , Li Hongfei , Rafailovich Miriam 
Published: December 2014

ABSTRACTThe oxidation of CO to CO2 is necessary in the operation of Proton Exchange Membrane Fuel Cells (PEMFCs) since even a small amount of CO that is formed when the PEMFC is operated under ambient conditions is sufficient to poison the Pt catalyst in the electrodes and degrade the performance. Operation using higher loads of Pt catalysts or increasing the purity of the H2 input gas significantly adds to the cost, adversely impacting the commercial development of PEMFCs. We combined graphene oxide (GO) with metallic salts and partially reduced the mixture with sodium borohydride, yielding a metallized form of partially reduced graphene oxide (prGO) platelets that remained in solution. When these platelets were coated on the Nafion membrane of a PEMFC, a 72% increase in the power output was observed, whereas a 62% increase was observed when the membrane was coated with partially reduced graphene oxide without the metallic salts. Results will be presented for AuGO/prGO, PtGO/prGO, and AuPtGO/prGO combinations.
Enhanced Human Bone Marrow Mesenchymal Stem Cell Chondrogenic Differentiation on Cold Atmospheric Plasma Modified Cartilage Scaffold
Authors: Zhu Wei , Keidar Michael , Zhang Lijie Grace 
Published: December 2014

ABSTRACTArticular cartilage is prone to degeneration and possesses extremely poor self-healing capacity due to its low cell density and absence of blood vessels. It has extensively reported tissue engineered scaffold can be a promising approach for cartilage repair. However, there still remains an inherent lack of desirable scaffolds that stimulate cartilage regrowth with appropriate functional properties. Therefore, in this study, we develop a biomimetic cartilage substitute comprising of electrospun polycaprolactone (PCL) with cold atmospheric plasma (CAP) modified cell favorable surface and sustained bioactive factor (bovine serum albumin (BSA) or transforming growth factor beta 1 (TGF-β1)) incorporated microspheres inside for improving stem cell chondrogenesis and cartilage regeneration. Scanning electron microscopy (SEM) analysis showed the drug delivery spheres homogeneously distribution in the fibrous scaffold. Furthermore, CAP treatment renders the scaffold’s surface more hydrophilic and results in more specific vitronectin adsorption as illustrated by contact angle and ELISA testing. Our results showed that the CAP treated scaffold can greatly improve growth and chondrogenic differentiation (such as increased glycosaminoglycan (GAG) synthesis) of human bone marrow-derived mesenchymal stem cells (MSCs).
Development of a Novel 3D Bioprinted In Vitro Nano Bone Model for Breast Cancer Bone Metastasis Study
Authors: Holmes Benjamin , Zhu Wei , Zhang Lijie Grace 
Published: December 2014

ABSTRACTBreast cancer (BrCa) is the second commonest cause of cancer-related deaths in women. The metastatic breast cancer exhibits a high affinity to bone, leading to debilitating skeletal complications associated with significant morbidity and poor prognosis. Traditional in vitro and in vivo BrCa bone metastasis models contain many inherent limitations with regards to controllability, reproducibility, and flexibility of design. Thus, the objective of this research is to use a 3D bioprinting system and nanomaterials to recreate a biomimetic and tunable bone model suitable for the effective simulation and study of metastatic BrCa invading and colonizing a bone environment. For this purpose, we designed and 3D printed a series of scaffolds, comprised of a bone microstructure and nano hydroxyapatites (nHA, inorganic nano components in bone). The size and geometry of the bone microstructure was varied with 250 and 150 µm pores, in repeating square and hexagon patterns, for a total of four different pore geometries. 3D bioprinted scaffolds were subsequently conjugated with nHA, using an acetylation chemical functionalization process and then characterized by scanning electron microscope (SEM). SEM imaging showed that our designed microfeatures were printable with the predesigned resolutions described above. Imaging further confirmed that acetylation effectively attached nHA to the surface of scaffolds and induced a nanoroughness. Metastatic BrCa cell 4 h adhesion and 1, 3 and 5 day proliferation were investigated in the bone model in vitro. The cell adhesion and proliferation results showed that all scaffolds are cytocompatible for BrCa cell growth; in particular the nHA scaffolds with small hexagonal pores had the highest cell density. Given this data, it can be stipulated that our 3D printed nHA scaffolds may make effective biomimetic environments for studying BrCa bone metastasis.
Health Outcomes for HIV-Infected Persons Released From the New York City Jail System With a Transitional Care-Coordination Plan
Authors: Teixeira Paul A. , Jordan Alison O. , Zaller Nicolas , Shah Dipal , Venters Homer 
Published: December 2014

Objectives. We sought to assess 6-month outcomes for HIV-infected people released from New York City jails with a transitional care plan. Methods. Jail detainees in New York City living with HIV who accepted a transitional care plan during incarceration were asked to participate in a multi-site evaluation aimed at improving linkages to community-based care. The evaluation included a 6-month follow-up; HIV surveillance data were used to assess outcomes for those considered lost to follow-up. Results. Participants (n = 434) completed baseline surveys during incarceration in a jail in New York City. Of those seen at 6 months (n = 243), a greater number were taking antiretroviral medications (92.6% vs 55.6%), had improved antiretroviral therapy adherence (93.2% vs 80.7%), and reported significant reductions in emergency department visits (0.20 vs 0.60 visits), unstable housing (4.15% vs 22.4%), and food insecurity (1.67% vs 20.7%) compared with baseline. Conclusions. Transitional care coordination services facilitate continuity of care and improved health outcomes for HIV-positive people released from jail.
Macroeconomic Consequences of Accounting: The Effect of Accounting Conservatism on Macroeconomic Indicators and the Money Supply
Authors: Crawley Michael J. 
Published: December 2014

ABSTRACT
This study investigates the macroeconomic consequences of firm-level accounting conservatism. Consistent with conditional conservatism extending to the aggregate level, I demonstrate that annual estimates of aggregate corporate profits and gross domestic product compiled by the U.S. Bureau of Economic Analysis are more sensitive to negative aggregate news than to positive aggregate news. Next, I estimate the dollar value impact of conservatism on measurements of macroeconomic fundamentals. Finally, I show that incorporating the dollar value impact of conservatism increases the explanatory power of a monetary policy reaction function that describes U.S. Federal Reserve interest rate decision behavior. These results suggest that accounting can impact social welfare by altering the measurement attributes of key macroeconomic indicators and by shaping monetary policy decisions that regulate the money supply.
JEL Classifications: M41; E43; E52.
The Association between Extensions in XBRL Disclosures and Financial Information Environment
Authors: Li Shiyou , Nwaeze Emeka T. 
Published: December 2014

ABSTRACT
This study examines the association between XBRL extensions and financial information environments of firms, where “financial information environment” refers to the degree to which a firm's financial information is reflected in the information held/used by investors. An XBRL extension is a customized definition of a financial concept or reporting situation that is not available in the U.S. GAAP Financial Reporting Taxonomy. In 2009, the U.S. Securities and Exchange Commission (SEC) allowed firms to begin to use extensions to add new concepts in their financial disclosures. Critics express concerns that the reporting discretion permitted under the XBRL mandate will reduce comparability of financial disclosures and complicate financial analysis. Proponents contend that XBRL extensions will provide users with new and relevant information. To evaluate the competing views, we employ several proxies for financial information environment and perform analyses for early and later phases of XBRL adoption. We find that XBRL extensions are negatively (positively) associated with financial information environments of firms at the early (later) phases of XBRL adoption. The results for later periods of XBRL adoption provide support for the SEC's policy that allows registrants to use XBRL extensions to increase users' understanding of the information in financial statements.
Progression of Diabetes Retinal Status Within Community Screening Programs and Potential Implications for Screening Intervals
Authors: Leese Graham P. , Stratton Irene M. , Land Martin , Bachmann Max O. , Jones Colin , Scanlon Peter , Looker Helen C. , Ferguson Brian 
Published: December 2014

OBJECTIVE
This study aimed to follow the natural progression of retinal changes in patients with diabetes. Such information should inform decisions with regard to the screening intervals for such patients.

RESEARCH DESIGN AND METHODS
An observational study was undertaken linking the data from seven diabetes retinal screening programs across the U.K. for retinal grading results between 2005 and 2012. Patients with absent or background retinopathy were followed up for progression to the end points referable retinopathy and treatable retinopathy (proliferative retinopathy).

RESULTS
In total, 354,549 patients were observed for up to 4 years during which 16,196 patients progressed to referable retinopathy. Of patients with no retinopathy in either eye for two successive screening episodes at least 12 months apart, the conditions of between 0.3% (95% CI 0.3–0.8%) and 1.3% (1.0–1.6%) of patients progressed to referable retinopathy, and rates of treatable eye disease were &lt;0.3% at 2 years. The corresponding progression rates for patients with bilateral background retinopathy in successive screening episodes were 13–29% and up to 4%, respectively, in the different programs.

CONCLUSIONS
It may be possible to stratify patients for risk, according to baseline retinal criteria, into groups with low and high risk of their conditions progressing to proliferative retinopathy. Screening intervals for such diverse groups of patients could safely be modified according to their risk.
The Nature of Mining-Induced Horizontal Displacement of Surface on the Example of Several Coal Mines
Authors: Tajduś Krzysztof 
Published: December 2014

Abstract
The paper presents the analysis of the phenomenon of horizontal displacement of surface induced by underground mining exploitation. In the initial part, the basic theories describing horizontal displacement are discussed, followed by three illustrative examples of underground exploitation in varied mining conditions. It is argued that center of gravity (COG) method presented in the paper, hypothesis of Awierszyn and model studies carried out in Strata Mechanics Research Institute of the Polish Academy of Sciences indicate the proportionality between vectors of horizontal displacement and the vector of surface slope. The differences practically relate to the value of proportionality coefficient B, whose estimated values in currently realized design projects for mining industry range between 0.23r to 0.42r for deep exploitations, whereas in the present article the values of 0.33r and 0.47r were obtained for two instances of shallow exploitation. Furthermore, observations on changes of horizontal displacement vectors with face advancement indicated the possibility of existence of COG zones above the mined-out field, which proved the conclusions of hitherto carried out research studies (Tajduś 2013).
Investigations on the structural, morphological, optical and electrical properties of undoped and nanosized Zn-doped CdS thin films prepared by a simplified spray technique
Authors: Anbarasi M. , Nagarethinam V. , Balu A. 
Published: December 2014

Abstract
CdS and Zn-doped CdS (CdS:Zn) thin films have been deposited on glass substrates by spray pyrolysis technique using a perfume atomizer. The influence of Zn incorporation on the structural, morphological, optical and electrical properties of the films has been studied. All the films exhibit hexagonal phase with (0 0 2) as preferential orientation. A shift of the (0 0 2) diffraction peak towards higher diffraction angle is observed with increased Zn doping. The optical studies confirmed that the transparency increases as Zn doping level increases and the film coated with 2 at.% Zn doping has the maximum transmittance of about 90 %. The sheet resistance (Rsh) decreases as the Zn-doping level increases and a minimum value of 1.113 × 103 Ω/sq is obtained for the film coated with 8 at.% Zn dopant. The CdS film coated with 8 at.% Zn dopant has the best structural, morphological and electrical properties.
Thermoluminescent characteristics of nano-structure hydroxyapatite:Dy
Authors: Ziaie F. , Moein N. Farhadi , Shafaei M. 
Published: December 2014

Abstract
The thermoluminescence response of Dysprosium doped hydroxyapatite samples with different mol percentage of 0.5, 1 and 2 were studied and compared with the pure hydroxyapatite. The samples were objected to 60Co gamma rays irradiation with doses of 100 mGy to 10 Gy. The main peak in the sample glow curves were obtained at 310 °C. The sensitivity of the 1 mol% Dy doped hydroxyapatite samples show the highest thermoluminescence response. Fading behavior of the irradiated samples was also studied. The experimental results show that the synthetic Dy-doped hydroxyapatite obtained by the hydrolysis method may be used in gamma radiation dosimetry.
Promising new borehole liquids for ice-core drilling on the East Antarctic high plateau
Authors: Sheldon Simon G. , Popp Trevor J. , Hansen Steffen B. , Steffensen Jørgen P. 
Published: December 2014

AbstractA drill liquid is essential for the purpose of recovering good-quality scientifically useful ice cores at intermediate to deep depths, i.e. >∼100 m. The pressure produced by the liquid helps to eliminate the detrimental effects of the abrupt release of isostatic pressure in the ice during the drilling process, prevents consequential fractures within the ice core, and is essential to produce an even distribution of hydrostatic pressure to balance the ice isostatic pressure and so minimize borehole deformation. To perform these tasks, while minimizing risks to health and the environment, the liquid needs to exhibit specific physical, chemical and biological characteristics. Here we report on two promising candidate drill liquids, ESTISOL™ 140 and ESTISOL™ 165, for use in the extreme conditions found within the ice sheets of Greenland and Antarctica, where the temperature can range from close to 0°C to below −57°C and pressures can exceed 40 MPa. From both the manufacturer’s data and our laboratory tests and observations we report on the physical, chemical and biological characteristics that both liquids exhibit. We also report on how one of the candidates was field-tested on the Greenland ice sheet and the East Antarctic high plateau.
Technical innovations and optimizations for intermediate ice-core drilling operations
Authors: Triest Jack , Mulvaney Robert , Alemany Olivier 
Published: December 2014

AbstractThe British Antarctic Survey, in collaboration with Laboratoire de Glaciologie et Géophysique de l’Environnement, has in recent years successfully drilled to bedrock on three remote sites around the Antarctic Peninsula. Based on the experience from the multi-season project at Berkner Island (948m depth, 2002–05) we optimized the drill set-up to better suit two subsequent single-season projects at James Ross Island (363m depth, 2008) and Fletcher Promontory (654m depth, 2012). The adaptations, as well as the reasons for them, are discussed in detail and include a drill tent set-up without a trench; drilling without a borehole casing with a relatively low fluid column height; and using a shorter drill. These optimizations were aimed at reducing cargo loads and installation time while maintaining good core quality, productivity and a safe working environment. In addition, we introduce a number of innovations, ranging from a new lightweight cable tensioning device and drill-head design to core storage and protection trays. To minimize the environmental impact, all the drill fluid was successfully recovered at both sites and we describe and evaluate this operation.
Risk Factor Outcome Comparison Between Exercise-Based Cardiac Rehabilitation, Traditional Care, and an Educational Workshop
Authors: Adams Jenny L. , Nuss Terri , Banks Carolyn , Hartman Julie , Segrest Wendy , Spears Joanne , Yount Phyllis , Bryant Lona 
Published: December 2014

Background:
This study examined risk factor outcomes among patients who attended cardiac rehabilitation sessions, those who received traditional care, and those who attended Leap for Life® workshops.

Methods:
A non-equivalent, three-group design was used in this observational study. Baseline and 12-month measurements were collected for 217 participants. Analysis of covariance was performed to determine differences between groups on outcome variables.

Results:

The only significant finding was in participants with an initial high-density lipoprotein value of less than 40. High-density lipoprotein levels increased more in the cardiac rehabilitation group than in the traditional care group (30.54 to 37.48 versus 30.17 to 33.67 [
F
= 4.577,
p
= .035]).

Conclusions:
Based on these findings, a strong case can be made for the transition to more individually intense and focused risk factor modification strategies for patients in cardiac rehabilitation programs.
Video Content Search System for Better Students Engagement in the Learning Process
Authors: Alotaibi Alanoud , Fayyoumi Ayham 
Published: December 2014

As a component of the e-learning educational process, content plays an essential role. Increasingly, the video-recorded lectures in e-learning systems are becoming more important to learners. In most cases, a single video-recorded lecture contains more than one topic or sub-topic. Therefore, to enable learners to find the desired topic and reduce learning time, e-learning systems need to provide a search capability for searching within the video content. This can be accomplished by enabling learners to identify the video or portion that contains a keyword they are looking for.
This research aims to develop Video Content Search system to facilitate searching in educational videos and its contents. Preliminary results of an experimentation were conducted on a selected university course. All students needed a system to avoid time-wasting problem of watching long videos with no significant benefit. The statistics showed that the number of learners increased during the experiment. Future work will include studying impact of VCS system on students’ performance and satisfaction.