bluuebunny/crossref_metadata_2025 huggingface dataset:
Experimental and Numerical Research of the Flow Features Around the Building Pairs with Different Types
Authors: Gölbaşı Deniz , Buyruk Ertan , Karabulut Koray
Published: December 2018

Flow structure on the building is a primary factor in dispersing of air
pollutants into and around of the building. Therefore, it is required to
determine air motions outside of the building. In this study, flow features at
the vicinity of the two building models with rooftop and without rooftop having
same dimensions were investigated experimentally and numerically. In the
experimental part of the study, flow structures around buildings having
dimensions of 5x5x5cm without rooftop and 5x5x5cm with 30o slope and
rooftop were examined firstly by placing one by one and afterwards they were
analysed by leaving a distance of 13.75cm as binary placed (with rooftop,
without rooftop and with and without rooftop) by using Particle Image Velocimetry
(PIV). In the numerical part of the study, experimental works carried out by
placing binary building was researched by using ANSYS Fluent 12.1 software with
k-ε turbulance model as three dimensional, steady and the obtained numerical
results were compared with experimental results. Instantaneous velocity fields
were firstly obtained at the experiments and then stream lines <Ψ> and
vortex peer curves <ω> were plotted by using these datas. Average
equivalent velocity curves distributions in the x and y directions were also
investigated both for building models. The results showed that the vortexes
occurred behind the building for the building without rooftop (model A) were
symmetric with each other whereas they were not symmetric at the building with
rooftop (model B). Also, the lengths of the vortexes at the rear of the model B
increased 7.5% according to model A. The obtained result demonstrated that the
rooftop had an effect on the flow structure. However, it was seen that the
results were confirmed with a deviation of 3% when compared experimental
results with numerical.
Fast Solutions for Lossless Anisotropic Electromagnetic Scattering and Radiation Problems Using the FDTD Method
Authors: Kaburcuk Fatih
Published: December 2018

In this paper, an acceleration technique is
proposed to solve electromagnetic scattering and radiation problems, which
contain lossless anisotropic (Lossless-ANI) materials, based on the
finite-difference time-domain (FDTD) method. This technique provides a
remarkable reduction in the simulation time of Lossless-ANI electromagnetic
problems. A microstrip patch antenna (MPA) with a Lossless-ANI substrate, and
electromagnetic scattering and radiation problems involved a Lossless-ANI
scattering object are analyzed to show the performance of the acceleration
technique. Numerical results show that resonant frequencies of the MPA, the
bistatic radar cross section (RCS) of the scattering problem, and the
directivity pattern of the radiation problem are affected by the anisotropy.
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.
Electrochemical Detection of Epinephrine in The Presence of Ascorbic Acid at Poly (p-Aminobenzene Sulfonic Acid) Modified Sensor
Authors: YAĞCI Şevket Zişan Bilge , KUYUMCU SAVAN Ebru , ERDOĞDU Gamze
Published: December 2018

In this study, a rapid, reliable, selective and sensitive simultaneous voltammetric determination of Epinephrine (EP) in the presence of ascorbic acid at poly (p-aminobenzene sulphonic acid, ABSA) modified sensor was aimed. The glassy carbon electrode was successfully modified with ABSA in 0.1 M KCl solution by the cycling voltammetry technique. The sensor, modified with a polymeric thin film, showed excellent electrocatalytic activity against the oxidation of EP and ascorbic acid (AA). The results showed that the oxidation potential and current responses of EP and AA improved significantly. The modified sensor showed excellent response with limit of detection as 50 nM in the determination of EP at the 5.0 - 53.2 μM concentration range under optimum conditions. In real sample analyzes performed in pharmaceutical preparation and blood serum, recovery values were 77.3%-98.4%. The results obtained show that the modified sensor can be applied to the detection of EP in the presence of AA. The proposed sensor is promising for routine analysis because of its high selectivity, reproducibility, reproducibility and long-term stability characteristics and high recovery values obtained in pharmaceutical and biological samples.
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 & 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.
Synthesis and Spectroscopic Properties of 5-Amino-1,3,4-Thiadiazole Substituted Zinc(II) Phthalocyanine Compound
Authors: YABAŞ Ebru
Published: December 2018

Thiadiazole substituted phthalonitrile 1 was prepared by a nucleophilic
displacement reaction of 4-nitrophthalonitrile with
5-Amino-1,3,4-thiadiazole-2-thiole.
Thiadiazole tetrasubstituted zinc(II) monophthalocyanine 2 was synthesized by tetramerization of compound 1. The new compounds were characterized by 1H-NMR, UV-vis and IR spectra.
Aggregation behavior of compound 2
was investigated both in different solvents (CHCl3, DMF, DMSO) and
in different concentrations. The fluorescence properties of compound 2 were also studied.
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.
La revisión de arcaísmos en el DRAE en la primera mitad del siglo XIX = A review of archaisms in the DRAE (1800-1850).
Authors: Ríos Enrique Jiménez
Published: December 2018

Este artículo aborda la revisión del Diccionario de la Real Academia Española fijando la atención en el léxico arcaico. Se parte de él por la importancia que siempre ha tenido en el diccionario. Para ello se examinan las ediciones de la primera mitad del siglo XIX porque en ellas, como reflejan los prólogos, se produce la mayor adición y supresión de arcaísmos de toda la historia del diccionario. El examen cuantitativo y cualitativo permite conocer la postura de la corporación en el tratamiento de estas voces, la cual responde a la aplicación de criterios de técnica lexicográfica más que a la consideración de estas palabras como testimonio de la evolución y el cambio lingüísticos.The article broaches the revision of the Dictionary of the Spanish Royal Academy, fixing the attention in the archaic lexicon. The editions of the first half of the 19th century are examined; in them happens the greatest addition and abolition of archaisms of all the history of the dictionary. It is concluded that the treatment of these voices responds to the implementation of criterions of lexicographical technique rather than to the verification of linguistic evolution and change.
Innovación y analogía en la creación de los marcadores de reformulación más exactamente y más precisamente = Innovation and analogy in the creation of reformulation markers más exactamente "more exactily" and más precisamente "more precisely"
Authors: Gerhalter Katharina
Published: December 2018

El objetivo de este trabajo es el estudio diacrónico de dos marcadores de reformulación que presentan paralelismos formales (más + adverbio) y semánticos. Sin embargo, la comparación de más exactamente y más precisamente muestra que no surgen paralelamente ni tampoco por los mismos caminos de evolución. Adaptamos el modelo teórico de cooptation para diferenciar entre creación innovadora y analogía. Además, los marcadores prueban la distinción entre reformulación, paráfrasis y corrección.The Spanish reformulation markers más exactamente "more exactly" and más precisamente "more precisely" show parallel formal structure and semantics. Nevertheless, the comparative study demonstrates that they did develop neither in a parallel manner nor through the same diachronic clines. To differentiate between innovative creation and analogy, we adapt the theoretical model of cooptation. Additionally, these markers prove the distinction between reformulation, paraphrase and correction.
V. Gómez Oliver. Retablo de Nueva York, edición bilingüe; versión castellana de Manuel Vázquez López; prólogo de Félix Fanés. Huerga y Fierro Editores, 2017
Authors: Balcells Doménech José María
Published: December 2018

Poesía en edición bilingüe con Nueva York y la tradición de esta ciudad en la literatura española como tema.
Maruxa Duart Herrero, Paila y la luna, Paila y Topito, Paila y Chuchín, Paila en Pedro Antón, Paila en las fiestas de San Bartolo; edición bilingüe español-inglés, versiones a la lengua inglesa a cargo de Pilar Galindo y Ray Mcgillycuddy, ilustraciones de Sandra Palomares López, Sandra Bustamente Palomares, Toni Moret Melió, Carlos Mayo y Mercedes Esteban Cabreros. Diputación de Albacete y Ayuntamiento de Yeste, 2018
Authors: Balcells Doménech José María
Published: December 2018

Colección ambientada en el Valle de Yeste, realizada sobre la creación de una especialista en literatura infantil.
Presentación
Authors: González Pérez Rosario , Herrero Ruiz de Loizaga Francisco Javier
Published: December 2018

Presentación del contenido del Monográfico "Construcción del discurso y pragmá­tica histórica en español (fenómenos, secuencias tex­tuales y tipos de discurso)"
INTERPOLADORES GEOESTATISTICOS APLICADOS NA ESPACIALIZAÇÃO DE ATRIBUTOS QUIMICOS DE UM LATOSSOLO VERMELHO AMARELO
Authors: De Oliveira A. R , Martins R. N. , Lopes Júnior J. G. , Santos J. A. S. , Siqueira W. C. , Abrahão S. A.
Published: December 2018

A agricultura de precisão (AP) destaca-se no gerenciamento a sítio especifico de insumos direcionados a correção da fertilidade do solo, a nutrição de plantas e a redução de impactos ambientais na agricultura convencional. Assim, este trabalho teve como objetivo determinar por meio da krigagem ordinária e cokrigagem, a variabilidade espacial do pH (H2O), P, K, Ca e Mg de um Latossolo Vermelho-Amarelo. O estudo foi conduzido numa área de 0,6 ha em Januária, Minas Gerais. Amostras de solo foram coletadas na profundidade de 0,00-0,20 m, utilizando uma malha regular de 72 pontos (6 x 6m). Outra grade amostral com 40 pontos foi criada para aplicação da técnica de cokrigagem com base na correlação entre os atributos. Os dados foram avaliados por estatística descritiva, análise de correlação e análise de variabilidade espacial, com base no ajuste dos semivariogramas, sendo em seguida gerados os mapas. As melhores correlações foram observadas entre os atributos pH e Ca (0,65) e K e Mg (0,39). De modo geral, com exceção do Mg, os níveis de todos os atributos avaliados apresentam-se como bons conforme classificação de solos para o estado de Minas Gerais e oferecem condições adequadas para o desenvolvimento de culturas agrícolas. Por fim, o uso da cokrigagem possibilitou estimar com boa confiabilidade os valores de Ca e Mg quando utilizados os valores de pH e K como co-variáveis.
EFEITO DA CALAGEM E FERTILIZANTES APLICADOS À TAXA VARIÁVEL NOS ATRIBUTOS QUÍMICOS DO SOLO E CUSTOS DE PRODUÇÃO DE PASTAGEM DE CAPIM TANZÂNIA MANEJADAS INTENSIVAMENTE
Authors: Bernardi A. C. de C. , Bueno J. O. de A. , Laurenti N. , Santos K. E. L. , Alves T. C.
Published: December 2018

O conhecimento da variabilidade espacial das propriedades do solo é útil para o uso racional dos insumos, como na aplicação localizada de calcário e fertilizantes. O manejo intensivo de pastagens integra várias tecnologias como correção do solo e adubação, irrigação e pastejo rotacionado. O uso de calcário e o fertilizante são fatores-chave para a intensificação do manejo de pastagens, a agricultura de precisão (PA) é a ferramenta para melhorar a eficiência do uso destes insumos. O objetivo deste trabalho foi mapear e avaliar a variabilidade espacial das propriedades do solo após calagem e aplicação de fertilizante fosfatado e o custo de produção de uma pastagem manejada intensivamente. O estudo de campo foi realizado em uma área de 1,7 ha de pastagem de capim Tanzânia irrigado em São Carlos, SP. Na safra seguinte, após a correção do solo com calcário e adubação com fósforo e potássio utilizando a tecnologia da taxa variável de aplicação, amostras de solo foram coletadas a 0-0,2 m de profundidade, e cada amostra representou um piquete. A variabilidade espacial das propriedades do solo e das necessidades específicas de calcário e fertilizantes foram modeladas utilizando-se semivariogramas. A variabilidade espacial das propriedades do solo e a necessidade de calagem e adubação foram modeladas por semi-variogramas, e os dados interpolados. Os resultados mostraram que a tecnologia de aplicação em taxa variável de calcário e superfosfato simples proporcionaram aumentos dos valores do pH, P, Ca, Mg e a V%. A tecnologia da aplicação de insumos à taxa variável pode ser utilizada como ferramenta de correção e adubação do solo levando à maior homogeneidade dos atributos químicos do solo, e também na redução do custo de produção.
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.
Az oktatási rendszer kulcsszereplői: pedagógusok Kárpátalján az ukrán válság éveiben
Authors: Ferenc Viktória
Published: December 2018

In spring 2017 a survey was carried out among 338 practicing Transcarpathian Hungarian teachers about their material and professional satisfaction and migration plans. The study highlighted that one of the most crucial problems of the teachers is the low salary. Among those who are contemplating migration the main push factor is material dissatisfaction, followed by family and partnership reasons. However, we cannot speak about professional burn-out in their case. 72% of the respondents, without being satisfied with their situation, still does not think about migration, or is pretty sure about staying at the homeland. 84 persons (25%) belong to an endangered group, in which people embrace the idea of migration. Only 5 persons have done concrete steps in this direction. In these two groups we find mainly youger teachers. The most important destination country is Hungary. Among the respondents there is high number of Hungarian citizenship holders, however it is not an obvious catalyst of migration: people who are willing to go or willing to stay cannot be differentiated according to this aspect.
A felsőoktatási kollégiumok változó világa: Közösségfejlesztés, avagy a PPP konstrukciókhoz igazodó üzemeltetés
Authors: Pataki Gyöngyvér
Published: December 2018

There has been structural change in higher education due to the impact of institutions built or maintained in private public partnership. The aim of the paper is to give a deep insight into how these institutions could accomodate or shape the public higher education sector’s discouses, spaces, procedures. The research used mixed method to approach this complex question from a multidisciplinary perspective (sociology, education). Within this framework two residential halls were chosen and 17 interviews were carreid out with all relevant figure of the management. Due to the analytical tools of Maxqda 12 the qualitative results will be presented giving an insight into the differing discourses and practices of the public vs. private-public management. Based on the analysis of the managerial interviews it is safe to state that the public management struggles to balance a communitarian, democratic discourse and objectives with the requirements of efficiency and accountability. The presence of private-public management unintendedly shapes its public counterpart. The institutional analysis revealed that due to the swiftly changing institutional and policy environment residential halls are forced to be efficient leading to difficulties in managerial legitimacy and questions concepts such as community, conformity, commitment and action. Under the circumstances of increasingly growing institutional service-based dependency and control, academic consumers, institutions and students alike, paradoxically avoid integrating into macro groups. As a consequence, the institution encourage and educate student into a particular type of citizenship based on communication and consumerism rather than consensus.
A felsőoktatási hallgatók civil aktivitása és a lemorzsolódási esélyük összefüggései
Authors: Fényes Hajnalka , Markos Valéria , Pusztai Gabriella
Published: December 2018

Our research question is that volunteering and civil organization membership of higher education students are able to protect against dropping out from higher education or even divert from effective learning and hinder persistence. The positive or negative effect of civil activity of students is measured by quantitative multivariable method, and the question is whether there is there a clear effect of civil activity on persistence, after allowing the effect of other socio-demographic variables. The results show, that civil activity of students neither protect against dropping out nor hinder persistence in our sample. There were several variables which affected civil activity, and the good relationship with parents is protecting the most against dropping out from higher education, but the fact, that civil activity is neither divert from effective learning, and nor hinder persistence means that it is important to improve civil activity of higher education students due to its’ several positive effects.
Violência psicológica contra a mulher
Authors: Clark Lauren Matozinhos , Da Silva Lays Figueiredo Inácio , Andrade Raquel Dully
Published: December 2018

A violência contra a mulher é qualquer tipo de ato violento que tenha por motivação o gênero, resultando em agressão física, sexual, psicológica ou sofrimento para a vítima, incluindo ameaças e insultos. Dentro desse campo está a violência psicológica. Ela é silenciosa e subjetiva, visto que muitas vezes as mulheres não percebem que estão sendo vítimas de tal agressão. Foi definido como violência psicológica, pela Lei 11.340, qualquer conduta que cause dano emocional e diminuição da autoestima ou que prejudique, perturbe o desenvolvimento ou ainda que tencione degradar ou controlar as ações da mulher. Este agravo tornou-se uma questão de saúde pública, defesa dos direitos humanos, e principalmente de fim a uma cultura de relações machistas. O presente estudo tem como objetivo apresentar e discutir os aspectos sociais relacionados a essa temática. Trata-se de um levantamento bibliográfico sobre os aspectos sociais que influenciam a violência psicológica contra a mulher, cujas buscas foram realizadas na Biblioteca da UEMG- Unidade Passos e nos bancos de dados SciELO, Medline, Google Acadêmico, PubMed, NCBI, Sage Journals e sites governamentais. Foram analisados vinte e um artigos e identificado quatro temas: Violência psicológica entre gêneros, violência doméstica, violência psicológica no trabalho e violência psicológica por trás da agressão física, no período de 2012 a 2017. Espera-se a partir desse estudo, trazer uma maior conscientização sobre a importância da denúncia, contribuindo com a construção de políticas públicas e chamando a atenção para um redirecionamento das ações de segurança pública, promoção da saúde e prevenção de agravos.
Sistema de controle de acesso utilizando Arduino e Android
Authors: Silveira Gabriel Morais , Rezende Italo De , Lara Igor Oliveira
Published: December 2018

O uso de chaves em fechaduras por muitas vezes pode se tornar incômodo e inseguro. É de conhecimento geral que uma chave comum é algo que pode ser clonado por diferentes métodos. Além disso, outros dispositivos de segurança, como keypads e cartões magnéticos, podem ser ineficientes, inseguros e caros. Com isso um mecanismo (tendo como base o microcontrolador Arduino) foi desenvolvido para facilitar e proporcionar de forma simples gerenciamento e controle do acesso a ambientes, de forma que o mecanismo trabalhe em conjunto com um smartphone, onde é realizada uma verificação com duas possibilidades, utilizando um mecanismo biométrico de autenticação ou um mecanismo lógico (PIN/senha).
Escalas de dor em pacientes oncológicos pediátricos: Uma revisão de literatura
Authors: Prates Elton Junio Sady , Prates Maria Luiza Sady , Bueno Trycyane Rodrigues , Shimoda Sandra , Souza Camilla Borges Lopes
Published: December 2018

O câncer infantil corresponde a um grupo de várias doenças que têm em comum a proliferação descontrolada de células anormais, no qual o diagnóstico exige o olhar cuidadoso e abrangente da equipe interdisciplinar, principalmente em relação às queixas álgicas. Embora o controle da dor seja um princípio básico para a qualidade de vida, em crianças o tratamento da dor é complexo. Assim, o presente estudo teve como objetivo descrever a atuação do enfermeiro na mensuração e controle da dor em pacientes oncológicos pediátricos através de um estudo bibliográfico. Para a seleção dos estudos realizou-se um levantamento on-line dos artigos publicados nas bases de dados LILACS, MEDLINE e CINAHL, utilizando-se os descritores em inglês “cancer” “children” e “pain” para a busca destes termos no título, abstract ou corpo do artigo. Foram incluídas neste estudo todas as publicações disponíveis na biblioteca on-line filtrando os artigos publicados nas bases de dados no período de 2008 a 2016. Após a avaliação e seleção da amostra constituiu-se de 26 artigos. Dentre as escalas mais utilizadas pelos autores, destaca-se a EVA, por ser tratada como uma escala capaz de facilitar o entendimento em relação à intensidade de dor, além de apresentar fácil utilização. A maioria dos autores utilizaram escalas para mensurar a dor e obtiveram resultados positivos, alguns intercalaram uma escala a outra como forma de validar os resultados obtidos. Entretanto, alguns optaram por não as utilizar, trocando-as por métodos não convencionais, tais como questionários semiestruturados. Considera-se, portanto, que a enfermagem demonstrou grande importância no acompanhamento, bem como nas intervenções para o controle da dor nos pacientes em estudo.
Desenvolvimento da Teoria Histórico-Cultural da Atividade em três gerações: Vygotsky, Leontiev e Engeström
Authors: Cenci Adriane , Damiani Magda Floriana
Published: December 2018

A Teoria Histórico-Cultural da Atividade é uma teoria viva, que vem sendo desenvolvida desde os anos 1920 e 1930, a qual busca entender a formação do humano na atividade social. A Teoria vem se transformando pari passu com as mudanças nos contextos culturais das investigações teóricas e práticas que a utilizam, apresentando, assim, mudanças e continuidade das ideias ao longo de seu desenvolvimento. Nesse sentido, alguns estudiosos definem três gerações da Teoria, cada uma representada por um expoente na área da pesquisa: a primeira por Vygotsky (fundador), a segunda por Leontiev e a terceira por Engeström. O objetivo neste artigo é apresentar as propostas teóricas dos três autores, delineando as relações entre elas e oferecendo um panorama da Teoria Histórico-Cultural da Atividade. O conceito de atividade, que em Vygotsky aparece como atividade mediada (mediada por signos e ferramentas), em Leontiev aparece como atividade coletiva, base da consciência humana, e em Engeström aparece como sistema de atividade em transformação. A produção e a expansão da Teoria podem ser entendidas como atividades históricas e coletivas.
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.
Calcified Chronic Subdural Hematoma: A Case Report and Literature Review
Authors: Xiao Zongyu , Chen Xiaojuan , Li Kunzheng , Zhang Zhengping
Published: December 2018

Calcified chronic subdural hematoma (CCSDH) is a rare disease that accounts for approximately 0.3%–2.7% of all chronic subdural hematomas (CSDHs). The clinical features of CCSDH are very similar to those of noncalcified CSDH and include headache, decreased alertness, weakness, numbness, gait disturbance, seizures, memory impairment, confusion, and unconsciousness. All symptomatic CCSDH should be treated surgically. Majority of these patients recover well following surgery. In this report, we present the case of a patient with CCSDH who developed severe cerebral edema following its removal, necessitating decompressive craniectomy. Although there were no abnormal findings in laboratory blood tests, and no signs of brain herniation or epilepsy was found the following day after surgery, the patient's family refused all treatment and a postoperative brain computed tomography (CT) scan. The patient was discharged and died at home. Cerebral hematoma and normal perfusion pressure breakthrough (NPPB) may cause severe cerebral edema following the total removal of a CCSDH.
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.
Valoración de la finca rústica “La Laguna” en Tierra Blanca, provincia de Cartago: Una Propuesta Integral
Authors: Álvarez-Varela Diana , Gómez-Garita Kevin , Madriz Segura Diana , Méndez Campos Paulo , Murillo Zamora Alexandra
Published: December 2018

Se realizó un análisis de diferentes métodos utilizados en tasación, con el objetivo de encontrar el valor físico de una finca rústica en Tierra Blanca de Cartago, dedicada al cultivo de cebolla, papa y remolacha, y con un área de 6.347,31m2. La investigación estimó el valor de la tierra mediante tres diferentes métodos, el econométrico, el comparativo y el financiero, y para la valoración de la infraestructura localizada en la finca se utilizó el método de costo neto de reposición.

Para el método econométrico se buscaron terrenos en comunidades cercanas, para una muestra total de 17 referencias de precios de terrenos, y se corrió el modelo econométrico, tomando como referencia el tamaño de los terrenos y la distancia al centro de desarrollo, que en este caso, es la ciudad de Cartago.

El método econométrico propuesto estimó un valor de ¢10.911,55/m2, mientras que el método comparativo basado en 6 referencias seleccionadas, estimó el valor de la tierra es ¢9.355,65/ m2. Estos resultados fueron cercanos al obtenido por el método financiero que estimó un valor de ¢8,483,44/m2 para la tierra bajo uso rotacional de papa y cebolla.

El valor final del terreno se obtuvo como promedio de los tres métodos anteriores y resultó ser de ¢9.583,55/m2 para un valor total de la tierra de ¢60.829.762,75.

El costo de edificaciones proporcionó un estado de conservación de 0,9794, una edad de 38 años, una vida útil de 45 años, el valor de desecho es 0 y un valor nuevo de reposición por metro cuadrado de ¢74.440,72 y un valor total de la edificación de ¢2.274.816,58.
Propuesta de un procedimiento general para la capacitación de personal en organizaciones agroempresariales
Authors: Rodríguez Román Cristina
Published: December 2018

Por lo general las agroempresas, que en su mayoría están integradas por micro, pequeñas y medianas empresas, carecen de sistemas de gestión de calidad integrales y si los poseen no incluyen dentro de sus procesos, uno para la gestión de talento humano y menos aún, uno específico para la capacitación o actividades formativas acordes a las necesidades de la organización; a lo sumo lo que existe es la formación aislada y puntual, que suele ser reactiva e ineficiente. Hoy en día, los dueños o gerentes de las empresas consideran que el éxito de la organización depende de las personas, por lo que desean influir en el comportamiento de las mismas para orientarlos a que contribuyan al éxito de la Pyme. Toda empresa agrícola, que en su presupuesto incluya el desarrollo de programas de capacitación y/o formación oportuna, dará a conocer a sus empleados el interés que tiene en ellos como personas, como trabajadores, como parte importante de esa organización con el fin de aumentar la productividad, lograr las metas de la organización, motivar al personal y garantizar controles de calidad.Es por esta misma razón, que esta nota técnica pretende promover la importancia de implementar un proceso de capacitación del personal como una herramienta clave en la gestión del talento humano. Asimismo, propone una guía básica para la estandarización de dicho proceso de manera documental, compuesta por seis registros que faciliten la generación y el procesamiento de la información referente a la capacitación del personal de una agroempresa.