bluuebunny/crossref_metadata_2025_split huggingface dataset:
Different land-use intensities and their susceptibility to soil erosion
Authors: Keller Boglárka , Szabó Judit , Centeri Csaba , Jakab Gergely , Szalai Zoltán 
Published: December 2018

Summary
Adaptation is the most important strategy to reduce the effect of climate change and soil erosion. During this process adequate, rational land use is necessary to ensure climate resilience. Therefore, the main objective in this study was to evaluate the susceptibility of different land use intensities (arable land and grassland) to soil erosion. The rainfall simulation method is a good tool to measure and estimate soil erosion in situ. The comparative measurements were carried out in the field with a Shower Power-02 simulator on 6 m2 plots in Gerézdpuszta, where the slope angles were ~8% and the simulated rainfall events had high intensities (~70-96 mm h−1). The runoff and soil loss were significantly higher from arable land. The runoff-infiltration ratio and runoff coefficient showed lower infiltration capacity in the case of arable land. On average, the suspended sediment loads were tenfold higher under intensive land use. In the case of grassland a moderate increase in infiltration was observed due to higher rainfall intensity, as also reported in the literature. The rainfall simulation method provides good data for soil loss estimations.
Karanfil Yağı, Eugenol ve 2-Phenoxyethanol’ün Yağ Balığı Pseudophoxinus anatolicus (Hankó, 1925)’ da, Anestetik Madde Olarak Etkinliği
Authors: Erbatur İsmail , Yağcı Abdulkadir , Ceylan Mustafa , Apaydın Yağcı Meral , Gökçek Kaya 
Published: December 2018

Bu çalışmada, yetiştiriciliği yapılan yağ balığı, Pseudophoxinus
anatolicus (Hankó, 1925) üzerinde karanfil yağı, 2-phenoxyethanol
(PE) ve
eugenol’ün farklı konsantrasyonlarının etkinliği araştırılmıştır. Bayılma
sürelerine göre, en uygun konsantrasyon karanfil yağı için 125 µl L-1
(187,00 ± 62,33 s), PE için 1250 µl L-1 (174,57 ± 28,87 s) ve
eugenol için 125 µl L-1 (170,00 ± 39,73 s) olarak belirlenmiştir.
Anestetik maddelerin farklı konsantrasyonları, balıkların göstermiş olduğu
fiziksel tepkiler üzerinde direk etkili olmuştur (P&lt;0,05). PE ve eugenol’ün
artan konsantrasyonlarına bağlı olarak bayılma sürelerinde düşüş ölçülse de
aradaki fark istatistik açıdan önemsiz bulunmuştur (P&gt;0,05). En kısa ayılma
süreleri ise, 457,57 ± 56,38 s ile karanfil yağı (125 µl L-1),
338,00 ± 20,49 s ile PE (500 µl L-1) ve 510,17 ± 94,07 s ile eugenol (125 µl L-1)
gruplarında ölçülmüştür. Sonuç olarak, her üç anestetik madde de yağ balığı
yetiştiricilik uygulamalarında verimli bir şekilde kullanılabilir.
SOVEREIGN WOMEN IN A MUSLIM KINGDOM. THE SULTANAHS OF ACEH, 1641 – 1699
Authors: Parani Julianti 
Published: December 2018

Buku berbahasa Inggris ini diterbitkan berdasarkan penelitian Sher Banu A.L. Khan, ilmuwan perempuan muslim, <em>assistant professor Malay Studies NUS</em> untuk meraih gelar doktor dari Queen Mary University of London.
Treatment of Oily Wastewater by Electrocoagulation Process and Optimization of the Experimental Conditions Using Taguchi Method
Authors: Özyonar Fuat 
Published: December 2018

In this study, electrocoagulation process was
used for chemical oxygen demand (COD), total organic carbon (TOC) and turbidity
removal from oily wastewaters and Taguchi experimental method was used to
determine optimum operational conditions. For this purpose, 5 significant
factors (initial pH, current, electrolysis time, air injection flow and
electrode surface area) effective in COD, TOC and turbidity removal from the
wastewaters were optimized. These experimental factors were handled in 4 levels
and experimental conditions were optimized through performing L16 (54)
tests with orthogonal series of Taguchi method. Optimum conditions were
identified as: initial pH of 6 (pHi level 3), current of 1A (I level
2), electrolysis time of 20 min (ECtime level 4), air injection flow
of 2 L/min (air flow level 3) and
electrode surface area of 210 cm2 (electrode surface area level 2).
Under these conditions, experimental and estimated pollutant removal
efficiencies were respectively identified as 92.1-95.6% for COD, as 78.5-80.2%
for TOC and as 96.2-95.7% for turbidity. Closer experimental and estimated
values indicated the available use of Taguchi method for electrocoagulation
process.
Structural, Spectroscopic and Anti-cancer Properties of Hydroxy- and Sulfonamide-Azobenzene Platinum (II) Complexes: DFT and Molecular Docking Studies
Authors: ERKAN Sultan 
Published: December 2018

The three platinum (II) complexes ([Pt(L1)(DMSO)Cl], [Pt(L2)(DMSO)Cl]
and [Pt(L2)2]) bearing the bidentate ligands
sulphonamide-((E)-2-(4-methylphenylsulfonamido)-2′,6′-diﬂuoroazobenzene,
HL1) and hydroxy-azo-2,6-diﬂuorobenzene
((E)-2-((2,6-diﬂuorophenyl)diazenyl)phenol, HL2) were optimized with the optimum
levels of B3LYP/6-31+G(d) and B3LYP/LANL2DZ/6-31+G(d) level. The structural
parameters (bond lengths and ligand angles), IR and 1H, 13C and 19F-NMR
spectra obtained from the optimized structures were compared with the
experimental data and the results were found to be consistent with the
experimental results. Experimental inhibition activities against A2780 and
A2780CP70 cancer cells were compared with quantum chemical parameters such as
HOMO energy (EHOMO), LUMO energy (ELUMO), LUMO-HOMO
energy vacancy (DE), hardness (h), softness (s), electronegativity (c) and chemical potential
(m). The relationship
between the molecular structure with the biological activity was examined and ELUMO
order was found to be compatible with the experimental inhibition efficiency
ranking. Molecular electrostatic potential (MEP) maps were studied of ligands
and complexes exhibiting anti-cancer properties and for ligands and complexes,
regions of attachment to cancer cells were determined. In addition,
electrostatic potential (ESP) charges obtained from MEP maps of ligands and
complexes were ranked according to their ease of binding to the cancer cell.
The obtained ranking was found to be in accordance with the experimental
inhibition efficiency order. For studied ligands and complexes, molecular
docking studies were carried out with the Hex.8.0.0 program. The target
proteins (PDB ID: 4M5W and 5FI4, respectively) corresponding to the A2780 and
A2780CP70 cell lines were selected in the literature. The interaction energies
of 4M5W and 5FI4 target proteins with HL1 and HL2 ligands were calculated to be
-300.02, -240.80 and -336.64, -247.04 kJ/mol, respectively. The binding
energies between the complexes and 4M5W and 5FI4 target proteins were
calculated to be -387.52, -285.44, -364.88 and -399.63, -297.8, -385.323
kJ/mol. According to these results, the experimental and calculated inhibition
efficiency order was found to be compatible.
Gas Chromatography Method Validation Study for Sensitive and Accurate Determination of Volatile Aromatic Hydrocarbons (VAHs) in Water
Authors: GÜZEL Barış , CANLI Oltan , ÖKTEM OLGUN Elmas 
Published: December 2018

A wide range of chemicals comes to exist at the
end of the industrial activities. They could have highly toxic and carcinogenic
effects on the human health and water environment. Therefore, these substances,
which are listed as prohibited chemicals on national and international lists,
must be monitored permanently with regards to environmental and human health
both in the water resources and potential receiving waterbodies. The objective
of this study was to present the method for the sensitive and accurate
determination of some volatile aromatic hydrocarbons (VAHs), including quite dangerous substances such as
benzene, toluene, xylenes, styrene and chlorobenzenes by using gas
chromatography - mass spectrometry (GC-MS) with purge &amp; trap (PT) process in different water samples. The proposed method
was verified with the selectivity,
linearity, limits of detection and quantification (LOD and LOQ), precision studies of the method and instrument. All analytes examined in
the study were trustworthily measured within the maximum performance limits for
PT-GC-MS. The selectivity work was carried out by
duplicate analysis of six blank water samples. There is no finding or
observation within the interval of the retention time of the analytes in the
water samples. The linearity of calibration curves was drawn by
analysis of prepared standard solutions at nine concentration levels. The analytical response linearity in the working range can be assessed as an excellent since the correlation
coefficients higher than 0.9996 for all analytes. The method accuracy was
carried out by doing recovery experiment. Recoveries
of analytes have been changed from 88.4 % to 94.6 % and the relative standard
deviation (RSD) results were found between 3.52 % and 6.35 %. The applicability of developed method was
confirmed by the determination of related analytes in the water samples.
Antidiabetic Potential: Effect of Resorcinol on α-Glycosidase and α-Amylase Enzymes
Authors: TOPAL Fevzi 
Published: December 2018

The vast majority of the carbohydrates in the biomolecule class are
formed by photosynthesis using sunlight. One of the important enzymes in this
class is α-glycosidase. This enzyme converts complex carbohydrates to
monosaccharides. On the other hand, another important enzyme species is the
α-amylase enzyme. Which directly related to starch. Starch is a type of polymer
formed by the oxygen binding of glucose units to each other at the C1 position
with glycosidic bonds. α-Amylase is an enzyme that catalyzes the hydrolysis of
glycosidic bonds in starch, and this enzyme is purified from a wide variety of
animals, plants, and microorganisms. Resorcinol, a phenol derivative, is an
important organic chemical substance in the production of textile, medicine,
hair dye, plastic and agricultural products of many industrial materials.
Resorcinol, a phenol derivative, is present as white crystals, and resorcinol
consists of two hydroxyl molecules attached to the benzene ring, and also was
defined as α-glycosidase and α-amylase inhibitor to detect antidiabetic
properties. Resorcinol was used as 𝛼-glycosidase and 𝛼-amylase inhibitor. Accordingly, IC50 values of α-amylase and
α-glycosidase were calculated as 1.34 μM and 77.00 nM, respectively. On the
other hand, Ki value for α-glycosidase was found as 30.16 nM. It has
been observed that α-amylase and α-glycosidase enzymes can inhibit by
resorcinol compound. It has the properties of inhibiting carbohydrate
absorption by inhibiting α-glycosidase enzymes in the small intestine. For both metabolic
enzymes, resorcinol may be preferred as an inhibitor. In this case, resorcinol
may be used as an inhibitor against to healty problems like Diabetes
mellitus and antiobesity.
Consistent Empirical Physical Formula Construction for Gamma Ray Angular Distribution Coefficients by Layered Feedforward Neural Network
Authors: YILDIZ Nihat , AKKOYUN Serkan , KAYA Hüseyin 
Published: December 2018

Multipolarities of gamma rays and
spins-parities of nuclear states are usually investigated by the angular
distribution of gamma rays emitted from aligned states formed by nuclear
reactions. For different multipolarities of the transitions, the distribution
shows different characteristics. The distribution is obtained by using angular
distribution formula which has literature tabulated coefficients for different
spins and multipolarities. However,
these coefficients involve -fold tensor products and they are highly nonlinear in nature.
Furthermore, as the calculation of these coefficients implicitly involves
highly complicated integral quantities, they are very difficult to handle
explicitly for larger values. In this respect, as
we theoretically proved in a previous paper, universal nonlinear function
approximator layered feedforward neural network (LFNN) can be applied to
construct consistent empirical physical formulas (EPFs) for nonlinear physical
phenomena. In this paper, by concentrating on the integer spins of nuclear
states and dipole and quadrupole type multipolarities of the transitions, we
consistently estimated the coefficients by constructing suitable LFNNs. The
LFNN-EPFs fitted the literature coefficient data very well. Moreover, magnificent
LFNN test set forecastings over previously unseen data confirmed the consistent
LFNN-EPFs for the determination of coefficients. In this sense, we can conclude that the LFNN
consistently infers nonlinear physical laws governing the angular distribution
of gamma rays, which are otherwise difficult to obtain by conventional
coefficient calculation methods.
Análise de Desempenho nos Cursos Superiores de Tecnologia da Informação a Distância no Distrito Federal
Authors: Da Silva Rodrigues Carlo Kleber , Rocha José Gladistone da , Moraes Ricardo Alves 
Published: December 2018

Este artigo analisa a modalidade de educação a distância em instituições de ensino superior de cursos de Tecnologia da Informação na região do Distrito Federal do Brasil. Para consecução deste objetivo, percorrem-se os três passos mencionados a seguir. Inicialmente, discute-se brevemente a legislação de ensino a distância no Brasil; em seguida, realiza-se uma compilação de trabalhos recentes da literatura que tratam do assunto; por fim, faz-se uma pesquisa de campo com discentes de cursos superiores de Ciência da Computação e Sistema de Informações na região do Distrito Federal. As principais contribuições advindas da realização deste trabalho são permitir identificar os problemas enfrentados na realização de cursos ou disciplinas nessa modalidade e, sobretudo, propor soluções de melhorias do processo como um todo. Palavras-chave: Educação a distância; Ensino superior; Aprendizagem. Performance Analysis in Distance-Learning Higher-Education Programs of Information Technology in Federal DistrictAbstractThis article analyzes the modality of distance learning in higher education institutions of Information Technology programs in the region of the Federal District of Brazil. To achieve this goal, the following three steps are covered. Initially, it is briefly discussed the legislation of distance learning in Brazil; a compilation of recent literature works related to this subject matter is then carried out; at last, a field research is taken with students of programs in Computer Science and Information Systems in the region of the Federal District. The contributions arising from this work are to identify the main obstacles faced by students to accomplish programs or even individual courses under this learning modality and, above all, to propose solutions of improvements to the learning process as a whole. Keywords: Distance learning; Higher education; Learning.
Sources and Clinical Applications of Mesenchymal Stem Cells: State-of-the-art review
Authors: Berebichez-Fridman Roberto , Montero-Olvera Pablo R. 
Published: December 2018

First discovered by Friedenstein in 1976, mesenchymal stem cells (MSCs) are adult stem cells found throughout the body that share a fixed set of characteristics. Discovered initially in the bone marrow, this cell source is considered the gold standard for clinical research, although various other sources—including adipose tissue, dental pulp, mobilised peripheral blood and birth-derived tissues—have since been identified. Although similar, MSCs derived from different sources possess distinct characteristics, advantages and disadvantages, including their differentiation potential and proliferation capacity, which influence their applicability. Hence, they may be used for specific clinical applications in the fields of regenerative medicine and tissue engineering. This review article summarises current knowledge regarding the various sources, characteristics and therapeutic applications of MSCs.Keywords: Mesenchymal Stem Cells; Adult Stem Cells; Regenerative Medicine; Cell Differentiation; Tissue Engineering.
Teaching the Role of Health Advocate: Reflections on two cross-cultural collaborative advocacy workshops for medical trainees and instructors in Oman
Authors: Breton Jessica , Francescutti Louis H. , Al-Weshahi Yousef 
Published: December 2018

In March 2014, medical educators from Canada and Oman collaborated to shape the foundation of health advocacy training in Oman. Using existing research and innovative tools, two workshops were developed, representing the first formalised approach to health advocacy for medical trainees in Oman. The development and application of the workshops highlighted many unique challenges and opportunities in advocacy training. This article summarises the process of developing and implementing the workshops as well as feedback from the participants and short-term consequences. Furthermore, this article seeks to explore the complexities of designing a cross-cultural curriculum. In particular, it reflects on how the role of health advocate may be perceived differently in various cultural and societal settings. Understanding and adapting to these influences is paramount to creating a successful health advocacy curriculum that is relevant to learners and responsive to the communities in which they work.Keywords: Patient Advocacy; Medical Education; Social Determinants of Health; Health Promotion; Problem-Based Learning; Cross-Cultural Comparison; Canada; Oman.
Relationship Between Glycated Haemoglobin and Carotid Atherosclerotic Disease Among Patients with Acute Ischaemic Stroke
Authors: Nazish Saima , Shahid Rizwana , Albakr Aishah , Alkhamis Fahd A. , Aljaafari Danah , Alabdali Majed , Alsulaiman Abdullah , Al-Mulla Faisal A. 
Published: December 2018

Objectives: This study aimed to determine the relationship between glycaemic control and carotid atherosclerotic disease among patients with acute ischaemic stroke (AIS). Methods: This retrospective cross-sectional study took place in the Neurology Department of King Fahad Hospital of University, Khobar, Saudi Arabia, from April to October 2017. Data were collected from the medical records of 244 patients with a diagnosis of AIS confirmed by computed tomography. Doppler ultrasounds of the carotid artery were performed to determine the presence of increased carotid intima media thickness (CIMT) and plaques. Results: Significantly higher mean glycated haemoglobin (HbA1c) levels were noted in cases with high CIMT values (P = 0.002), but not in cases with carotid plaques (P = 0.360). In addition, there was a significant association between diabetes mellitus (DM) and high CIMT (P = 0.045), but not with carotid plaques (P = 0.075). Finally, while dyslipidaemia and age were independently correlated with high CIMT values (P = 0.034 and <0.001, respectively) and carotid plaques (P <0.001 each), no independent relationships were noted in terms of gender and other risk factors like DM, hypertension and smoking (P >0.050 each). Conclusion: High HbA1c levels were associated with high CIMT values, but not with carotid plaques. Therefore, HbA1c levels may be useful as an indirect marker of the initial stages of carotid artery atherosclerosis.Keywords: Glycated Hemoglobin A1c; Diabetes Mellitus; Carotid Intima-Media Thickness; Atherosclerotic Plaque; Stroke.
Implementing Lean Management Techniques at a Radiation Oncology Department
Authors: Al-Balushi Mustafa M. , Al-Mandhari Zahid 
Published: December 2018

Objectives: Lean management (LM) principles were first developed by a Japanese manufacturing company to maximise value and minimise waste in the automotive industry. However, these principles can also be applied in the healthcare sector. This study aimed to illustrate the process of implementing LM principles in a radiation oncology department to streamline workflow and identify and reduce waste. Methods: This study took place in the Department of Radiation Oncology, Royal Hospital, Muscat, Oman, in December 2016. A value stream map (VSM) was created for the chain of processes followed in the department. A waste analysis was conducted to determine which processes did not add value for the patient or healthcare provider. Results: Based on the VSM analysis, only six out of 13 steps were found to be of value. Necessary and unnecessary non-value-adding activities were identified. Sources of waste included parking and registration. In addition, variabilities in workload were noted. Conclusion: Overall, LM principles improve workflow, reduce waste and enhance patient and staff satisfaction. In the current study, the application of LM principles helped to improve value in a radiation oncology department.Keywords: Health Services Administration; Healthcare Quality Assurance; Total Quality Management; Organization and Administration; Efficiency; Oman.
Subarachnoid Hemorrhage after Surgery of the Medulla Oblongata Hemangioblastoma: A Case Report
Authors: Yang Xiang , Zhang Yuekang , Liu Xuesong , Chen Maojun 
Published: December 2018

Objectives To discuss the bleeding mechanisms after removing a medulla oblongata hemangioblastoma. Methods A 42-year-old male patient was diagnosed with a medulla oblongata hemangioblastoma. Preoperative cranial magnetic resonance imaging, computed tomography angiography and post-surgery computed tomography were completed during clinical procedure. We also reviewed the related literatures. Results The preoperative computed tomography angiography did not demonstrate any intracranial aneurysm. But, the patient had a fatal subarachnoid hemorrhage with ventricular hemorrhage 4 hours after surgery following the post-surgery computed tomography. Conclusions Subarachnoid hemorrhage after surgery of the medulla oblongata hemangioblastoma is very rare. Delayed postoperative hemorrhage seems the most reasonable explanation of Subarachnoid hemorrhage in our case.
Efecto de la distancia a centro urbano sobre el valor de las tierras rurales: El caso de Guápiles
Authors: Paniagua Molina Javier 
Published: December 2018

Se realizó una investigación para determinar el efecto de la distancia a la ciudad de Guápiles sobre el valor de las tierras rurales periféricas a ella. Se determinó que el valor unitario por cada metro cuadrado decae de forma exponencial conforme aumenta la distancia medida en kilómetros con un coeficiente de regresión de -0,023.
El modelo permitió demostrar que el tamaño de los terrenos y la distancia a centro urbano explicaron el 89% de la variabilidad en el valor unitario de las tierras rurales.
La explosión del desarrollo acelerado de la ciudad de Guápiles ha generado una presión sobre el valor de la tierra, así como expectativas, en ocasiones demasiado elevadas para los propietarios de la tierra.