bluuebunny/crossref_metadata_2025 huggingface dataset:
A STEADY PSEUDO-COMPRESSIBILITY APPROACH BASED ON UNSTRUCTURED HYBRID FINITE VOLUME TECHNIQUES APPLIED TO TURBULENT PREMIXED FLAME PROPAGATION
Authors: Dourado W. M. C. , Bruel P. , Azevedo J. L. F.
Published: July 2016

A pseudo-compressibility method for zero Mach number turbulent reactive flows with heat release is combined with an unstructured finite volume hybrid grid scheme. The spatial discretization is based on an overlapped cell vertex approach. An infinite freely planar flame propagating into a turbulent medium of premixed reactants is considered as a test case. The recourse to a flamelet combustion modeling for which the reaction rate is quenched in a continuous way ensures the uniqueness of the turbulent flame propagation velocity. To integrate the final form of discretized governing equations, a three-stage hybrid time-stepping scheme is used and artificial dissipation terms are added to stabilize the convergence path towards the final steady solution. The results obtained with such a numerical procedure prove to be in good agreement with those reported in the literature on the very same flow geometry. Indeed, the flame structure as well as its propagation velocity are accurately predicted thus confirming the validity of the approach followed and demonstrating that such a numerical procedure will be a valuable tool to deal with complex reactive flow geometries.
INCORPORATION OF A TWO-FLUX MODEL FOR RADIATIVE HEAT TRANSFER IN A COMPREHENSIVE FLUIDIZED BED SIMULATOR PART II: NUMERICAL RESULTS AND ASSESSMENT
Authors: Rabi J. A. , De Souza-Santos M. L.
Published: July 2016

As shown in the first part of this paper, equations and considerations for a preliminary attempt to improve the treatment for radiative heat transfer of a previous comprehensive simulation program were presented. For that, the two-flux radiative heat transfer model was applied. In this second part, the new version of that program was tested against steady-state operations of real equipment. Numerical simulations were carried for two different fluidized-bed reactors: a coal-fed boiler and a wood-fed gasifier. Computational results obtained with that new version were compared with those obtained with the previous simulator version. Then, both sets of results were also compared with real operational data. Special attention was paid to the temperature profiles of each particle species present in the bed section  carbonaceous, limestone and inert  as well as to the radiative heat transfer rates between these solids. Effects on the temperature profiles of the gas phases  emulsion and bubbles  and on the equipment performance parameters were also investigated. Improvements related to the incorporation of two-flux model are assessed and discussed. New developments and extensions of this approach are indicated.
OPTIMALLY STAGGERED FINNED CIRCULAR AND ELLIPTIC TUBES IN FORCED CONVECTION
Authors: Matos R. S. , Laursen T. A. , Vargas J. V. C. , Bejan A.
Published: July 2016

This work presents a three-dimensional (3-D) numerical and experimental geometric optimization study to maximize the total heat transfer rate between a bundle of finned tubes in a given volume and a given external flow both for circular and elliptic arrangements, for general staggered configurations. The optimization procedure started by recognizing the design limited space availability as a fixed volume constraint. The experimental results were obtained for circular and elliptic configurations with a fixed number of tubes (12), starting with an equilateral triangle configuration, which fitted uniformly into the fixed volume with a resulting maximum dimensionless tube-to-tube spacing S/2b = 1.5, where S is the actual spacing and b is the smaller ellipse semi-axis. Several experimental configurations were built by reducing the tube-to-tube spacings, identifying the optimal spacing for maximum heat transfer. Similarly, it was possible to investigate the existence of optima with respect to other two geometric degrees of freedom, i.e., tube eccentricity and fin-to-fin spacing. The results are reported for air as the external fluid in the laminar regime, for 125 and 100 Re 2b , where 2b is the ellipses smaller axis length. Circular and elliptic arrangements with the same flow obstruction cross-sectional area were compared on the basis of maximum total heat transfer. This criterion allows one to quantify the heat transfer gain in the most isolated way possible, by studying arrangements with equivalent total pressure drops independently of the tube cross section shape. This paper reports three-dimensional (3- D) numerical optimization results for finned circular and elliptic tubes arrangements, which are validated by direct comparison with experimental measurements with good agreement. Global optima with respect to tube-to-tube spacing, eccentricity and fin-tofin spacing ( 0.5 e 0.5, S/2b and 06 . 0 f for 125 and 100 Re 2b , respectively) were found and reported in general dimensionless variables. A relative heat transfer gain of up to 19% is observed in the optimal elliptic arrangement, as compared to the optimal circular one. The heat transfer gain, combined with the relative material mass reduction of up to 32% observed in the optimal elliptic arrangement in comparison to the circular one, show the elliptical arrangement has the potential for a considerably better overall performance and lower cost than the traditional circular geometry.
NUMERICAL SIMULATION OF FCC RISERS
Authors: Souza J. A. , Vargas J. V. C. , Von Meien O. F. , Martignoni W.
Published: July 2016

The catalytic cracking of hydrocarbons in a FCC riser is a very complex physical and chemical phenomenon, which combines a three-dimensional, three-phase fluid flow with a heterogeneous catalytic cracking kinetics. Several researchers have carried out the modeling of the problem in different ways. Depending on the main objective of the modeling it is possible to find in the literature very simple models while in other cases, when more accurate results are necessary, each equipment is normally treated separately and a set of differential and algebraic equations is written for the problem. The riser reactor is probably the most important equipment in a FCC plant. All cracking reactions and fuel formation occur during the short time (about 4-5s) that the gas oil stays in contact with the catalyst inside the riser. This work presents a simplified model to predict the, temperature and concentrations in a FCC riser reactor. A bi-dimensional fluid flow field combined with a 6 lumps kinetic model and two energy equations (catalyst and gas oil) are used to simulate the gas oil cracking process. Based on the velocity, temperature and concentration fields, it is intended, on a next step, to use the second law of thermodynamic to perform a thermodynamic optimization of the system.
AN OBJECTIVE EXPLICIT FORMULATION BASED ON THE OLDROYD-B CONSTITUTIVE EQUATION
Authors: Mompean G. , Thompson R. L. , Souza Mendes P. R.
Published: July 2016

In the present paper is shown how to obtain an objective explicit algebraic extra-stress model (AESM) based on differential constitutive equations for viscoelastic flows (Oldroyd B, White-Metzner, Phan-Thien-Tanner, etc). The formulation is developed for three-dimensional time-dependent flows. In a previous work, Mompean, 1998 obtained a non-objective algebraic model. This inconsistency is now removed introducing the relative-rate-ofrotation tensor making the model frame-invariant. A new generalized objective time derivative is also introduced, giving flexibility to the model. Calculations are performed with an Oldroyd B based AESM for a 4:1 contraction flow, showing good agreement with the original constitutive differential model. Several results with particular derivatives are obtained and an analysis guided by a flow type classifier is given. This formulation is able to include a prediction, not present in the Oldroyd B model, the viscometric second normal stress difference, N2.
COMPARATIVE ANALYSIS OF THE IAPWS-IF97 FORMULATION PERFORMANCE FOR THERMODYNAMIC PROPERTIES OF WATER ON A RANKINE CYCLE
Authors: Fonseca Jr. J. G. , Schneider P. S.
Published: July 2016

The present paper presents the computational implementation of the industrial formulation of the thermodynamic properties of water at liquid and steam phases, proposed by the International Association for the Properties of Water and Steam, known as IAPWS-IF97. The validity field extends over to temperatures T between 0ºC and 800°C, for pressures p up to 100 MPa. Temperature T, specific volume v, specific enthalpy h, specific entropy s, specific heat at constant pressure cp and constant volume cv, besides saturation pressure ps, are calculated having a pair of known input values (p,T), (p,h) or (p,s). A comparative analysis between the IAPWS-IF97 routines and others, based on foregoing propositions, from an application on Rankine cycle, is made. IAPWS-IF97 has proved to be more precise, mainly because it accounts for the region of compressed liquid, besides requiring less processing time. The development is carried out as FORTRAN90 subroutines and functions and is available for public use according to a General Public License.
SUMÁRIO BILINGUE
Authors: Table of Contents Bilingual
Published: July 2016

SUMÁRIO BILINGUEBilingual Table of Contents
Editorial - Direitos humanos e fundamentais entre o Direito Constitucional Comparado e o Direito Internacional
Authors: Hachem Daniel Wunder
Published: July 2016

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Editorial - O diálogo entre Direito Constitucional e outros ramos jurídicos
Authors: Hachem Daniel Wunder
Published: July 2016

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Impactos da corrupção no direito fundamental a uma prestação jurisdicional conforme a justiça constitucional
Authors: Leal Rogério Gesta
Published: July 2016

O artigo aborda os impactos da corrução sobre o direito fundamental a uma prestação jurisdicional adequada baseando-se na administração da justiça, analisando os direitos das partes envolvidas, a eficiência dos procedimentos e sua efetividade, com base na ideia de processo justo, trazendo suas vertentes conceituais normativas e pragmáticas. Ademais, demonstra a partir da análise de caso as desfuncionalidades cartorárias que ocorrem em serventias judiciais e sua relação com a corrupção, diante dos problemas relativos com a eficiência do sistema de justiça, burocracia e gestão dos tribunais e seus órgãos, evidenciando a necessidade de se fazer o mapeamento dos riscos da corrupção no Poder Judiciário.
Editorial - O Estado sob controle
Authors: Hachem Daniel Wunder
Published: July 2016

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Entre la austeridad y el malestar: discursos sobre consumo y crisis económica en España
Authors: Alonso Benito Luis Enrique , Fernández Rodríguez Carlos Jesús , Ibañez Rojo Rafael
Published: July 2016

La situación de crisis económica que atraviesa España desde hace másde un lustro está infl uyendo en las formas de relación de la ciudadaníacon el consumo, no solo en términos de gasto económico sino de unarefl exión más profunda sobre el propio concepto de consumir. Esteartículo tiene como objetivo explorar los discursos sociales másrecientes sobre el consumo en España, basándose en los resultados deuna investigación empírica de carácter cualitativo. Para ello, se analizany discuten los materiales recogidos a partir de la realización de variosgrupos de discusión durante el primer trimestre de 2014. Los resultadosmuestran no solamente la generalización de prácticas de consumo másausteras, sino una crítica a la idea de que «hemos vivido por encima denuestras posibilidades».
La reconfiguración del empleo doméstico en España impacto de los cambios legislativos en el funcionamiento del sector
Authors: Díaz Gorfinkiel Magdalena
Published: July 2016

El objetivo de este artículo es analizar los recientes cambios legislativosacaecidos en el sector doméstico en España así como indagar sobre elefecto de estos cambios en su funcionamiento. Se debe tener en cuentaque desde el año 2011 han tenido lugar numerosas modifi cacioneslegislativas y que éstas se han producido dentro de un contexto de crisiseconómica que ha repercutido en un desigual desarrollo de la legislación.El artículo presenta los resultados de una investigación centrada enrevisar la legislación y la composición del sector doméstico en España,así como en obtener los discursos de las propias empleadas del hogar enrelación a las modifi caciones acaecidas. El estudio revela la difi cultad deconsolidar cambios en el sector doméstico debido a su particular anclajedentro de la estructura productiva y reproductiva de la sociedad.
Urothelial carcinoma of the bladder in a pediatric patient
Authors: Mau Elke E. , Leonard Michael P.
Published: July 2016

Urothelial carcinoma of the bladder in children and adolescents is rare. The World Health Organization database has recorded approximately 80 patients under age 16 that have been diagnosed with papillary bladder tumour since 1968.1 We are reporting on our case of urothelial carcinoma diagnosed in a 14-year-old male who presented with painless gross hematuria.
28-year late spermatic cord relapse of a testicular non-seminomatous germ cell tumour, managed robotically
Authors: Hayes James R. , Jewett Michael A.S. , Hamilton Robert J.
Published: July 2016

We present a patient who relapsed symptomatically 28 years postorchiectomy, initially followed by active surveillance for clinical stage I non-seminomatous germ cell tumour (CSI NSGCT). His relapse was localized to the pelvis, managed with robotic surgery, and achieved a complete resection with tumour markers normalized. We highlight the current Princess Margaret guidelines for followup of CSI NSGCT and discuss the trade-off between lifelong radiographic surveillance to detect the very small risk of late relapse. We discuss the incidence and presentation of late relapse, treatment options, and outcomes, highlighting that these tumours are typically refractory to chemotherapy and can often be managed with surgery alone.
Female sexual dysfunction in androgenetic alopecia: Case-control study
Authors: Sancak Eyup Burak , Oguz Sevilay , Akbulut Tugba , Uludag Aysegul , Akbas Alpaslan , Kurt Omer , Akbulut Mehmet Fatih
Published: July 2016

Introduction: We sought to evaluate the association of female sexual dysfunction (FSD) with adrogenetic alopecia (AGA) and metabolic syndrome (MetS) in premenopausal women.

Methods: From December 2013 to June 2015, we performed a case-control, prospective study of 115 patients with AGA and 97 age-matched control patients without AGA from among premenopausal
women who visited dermatology clinics of the two reference hospitals. Comprehensive history, anthropometric measurements, and questionnaire administration were performed for each of the total of 212 women. The Female Sexual Function Index (FSFI) was used to assess the key dimensions of female sexual function. AGA was assessed and graded by an experienced dermatologist according to Ludwig’s classification. The MetS assessment was made according to the NCEP-ATP III criteria.

Results: In univariate analysis, age, weight, waist circumference, hip circumference, waist-to-hip ratio, body mass index (BMI), AGA, MetS, cardiovascular event, marital status, hypertension, high fasting plasma glucose, high triglyceride, large waist, total testosterone, and free testosterone were associated with presence of FSD. In logistic regression analysis, age (odds ratio [OR] 1.21, 95% confidence interval [CI] 1.13‒1.30; p<0.001), AGA (OR 3.42, 95% CI 1.31‒8.94; p=0.017), MetS (OR 5.39, 95% CI 1.34‒21.62; p=0.012), and free testosterone (OR 0.18, 95% CI 0.09‒0.37; p<0.001) were independently associated with FSD.

Conclusions: Our study suggests that age, AGA, MetS, and free testosterone may have strong impact on sexual function in premenopausal women. Further studies with population-based and longitudinal design should be conducted to confirm this finding.
Prediction of fragmentation of kidney stones: A statistical approach from NCCT images
Authors: Moorthy Krishna , Krishnan Meenakshy
Published: July 2016

Introduction: We sought to develop a system to predict the fragmentation of stones using non-contrast computed tomography (NCCT) image analysis of patients with renal stone disease.

Methods: The features corresponding to first order statistical (FOS) method were extracted from the region of interest in the NCCT scan image of patients undergoing extracorporeal shockwave lithotripsy (ESWL) treatment and the breakability was predicted using neural network.

 Results: When mean was considered as the feature, the results indicated that the model developed for prediction had sensitivity of 80.7% in true positive (TP) cases. The percent accuracy in identifying correctly the TP and true negative (TN) cases was 90%. TN cases were identified with a specificity of 98.4%.

Conclusions: Application of statistical methods and training the neural network system will enable accurate prediction of the fragmentation and outcome of ESWL treatment.
Aging of the respiratory system
Authors: Lee Seung Hun , Yim Su Jin , Kim Ho Cheol
Published: July 2016

Changes in the respiratory system caused by aging generally include structural changes in the thoracic cage and lung parenchyma, abnormal findings on lung function tests, ventilation and gas exchange abnormalities, decreased exercise capacity, and reduced respiratory muscle strength. Decreased respiratory system compliance caused by reduced elastic recoil of the lung parenchymaand thoracic cage is related to decreased energy expenditure by the respiratory system. Lung function, as measured by 1-second forced expiratory volume and forced vital capacity (FVC), decreases with age, whereas total lung capacity remains unchanged. FVC decreases because of increased residual volume and diffusion capacity also decreases. Increased physiological dead space and ventilation/perfusion imbalance may reduce blood oxygen levels and increase the alveolar-arterial oxygen difference. More than 20% decrease in diaphragmstrength is thought to beassociated withaging-related muscle atrophy. Ventilation per minute remains unchanged, and blood carbon dioxide concentration does not increase with aging. However, responses to hypoxia and hypercapnia are decreased. Exercise capacity also decreases, and maximum oxygen consumption decreases by >1%/year. Consequence of these changes, many respiratory diseases occur with aging. Thus, it is important to recognize these aging-related respiratory system changes.
Quercetin induces cell death by caspase-dependent and p38 MAPK pathway in EGFR mutant lung cancer cells
Authors: Lim Eun Jin , Heo Jeunghoon , Kim Young-Ho
Published: July 2016

Objectives The aim of this study was whether quercetin induces cell death by caspase and MAPK signaling pathway in EGFR mutant lung cancer cells Methods PC-9 cells, EGFR mutant lung cancer cells, were treated various times and concentrations of quercetin and harvested and measured using MTT assay, DNA fragmentation, Western blotting, and FACS analysis. Results Treatment with quercetin in PC-9 cells resulted in inhibition of cell growth through apoptosis. Quercetin-induced apoptosis was associated with caspase-dependent manner. Quercetin also significantly increased levels of phosphor-p38 and decreased levels of phosphor-ERK, indicating that quercetin induces p38 MAPK signaling pathway in PC-9 cells. Quecetin treatment also generated the release of cytochrome c in PC-9 cells; however, pretreatment with rotenone or z-LEHD-fmk, significantly attenuated quercetin-induced apoptosis. Conclusions Our data indicate that quercetin exhibits EGFR mutant lung cancer effects through apoptosis by caspase dependent and mitochondrial pathway.
Endovascular treatment of acute limb ischemia due to thrombotic occlusion of the suprainguinal artery
Authors: Kang Byung Woo , Bae Jun Ho , Nah Deuk Young , Chung Jin Wook , Jo Byeong Joo , Park Jun Gi
Published: July 2016

Acute limb ischemia (ALI) is a serious condition requiring prompt intervention due to a sudden decrease in limb perfusion threatening limb viability. Treatment of ALI depends on the clinical status of the affected limb and patient comorbidities. Surgical therapy has been the historical standard of care for restoring limb perfusion; however, percutaneous endovascular intervention has been shown to be a promising treatment option in selected patients of ALI at high surgical risk. We report on a case of a 75-year-old man with ALI caused by thrombotic occlusion of the suprainguinal artery, successfully treated with endovascular therapy including stent insertion and thrombus aspiration and catheter-directed urokinase infusion in view of the clinical findings and imaging studies.
Metachronous anterior urethral metastasis of prostatic ductal adenocarcinoma
Authors: Oh Jeong Hyun , Kim Taek Sang , Rhew Hyun Yul , Chun Bong Kwon
Published: July 2016

Prostate cancer is increasing in frequency in Korea. Among them, ductal adenocarcinoma (DCP) has a more aggressive and poor prognosis than acinar adenocarcinoma (ACP), despite its low incidence. Patients usually present with symptoms of lower urinary tract symptoms and hematuria due to increasing tumor mass within the lumen of the prostatic urethra, making diagnosis of DCP by the transrectal prostate biopsy difficult. DCP is often metastasized at the time of diagnosis. DCP is transferable to most other organs but the metastasis to the anterior urethra is rare. There is no doubt that localized DCP requires radical prostatectomy (RP) but the guidelines for adjuvant therapy after RP have not yet been established. Methods of the treatment are confounded by individual differences, and arriving at a consensus is challenging due to insufficient data. We report a case of DCP and urethral metastasis after RP, thus aiding in the determination of treatment guidelines.
Identification of streptococcus dysgalactiae subsp. equisimilis from septic knee by 16S rRNA gene sequencing
Authors: Park Ji Sang , Kim Hye Won , Chae Jeong Don , Hur Jin Wuk , Park Yoon Seok , Yoo Min Seok , Yoon Hee
Published: July 2016

Septic arthritis is the infection of a joint by an infectious agent, leading to arthritis. It is therefore important to identify and treat the correct bacteria in septic arthritis. However, accurate identification of bacteria by conventional methods is difficult because of the distinct biochemical characteristics of individual bacteria. This case report aims at assessing septic arthritis caused by Streptococcus dysgalactiaesubsp. equisimilis(SDSE) using nucleotide sequences and discusses the associated treatment. Here, Streptococcus agalactiaewas determined to be the causative bacteria for septic arthritis in a 77 year-old woman using the conventional method of hemolysis pattern interpretation and morphology. However, nucleotide sequence analysis of 16S ribosomal RNA revealed that SDSE was the causative strain. 16S rRNA gene sequencing can correctly identify bacteria strains that are difficult to be identified by traditional method, and this correct identification can provide patients with the opportunity for adequate treatment using the proper antibiotics.
Платонов смисао суштине бивствовања лепог(те)
Authors: Вилић Наташа
Published: July 2016

У овом раду говорићемо о природи и пореклу лепог код Платона са освртом на даљња философска промишљања о овом питању све до нашег времена. Запитаћемо се на самом почетку, управо на трагу самог Платона, зашто и како (не) може бити естетика „наука“ о лепом; Фохт критикује многе естетичаре због таквог одређења естетике. Суштина овог рада јесте да се пропита са платоновске позиције о природи и суштини лепога; те како можемо доспети до смисла суштине бивствовања лепоте.
Xронополитика: Tеорија политичког времена
Authors: Куљанин Бранимир
Published: July 2016

Савремена друштвена и политичка теорија је у питању о простору-времену дала првенствен значај геополитици, у склопу односā насталих након нестанка двополарног свијета и надмоћи Запада у међународним односима: нове геополитичке прерасподјеле и стварања „новог свјетског поретка“ – америчке планетарне империје. Међутим, од насилне геополитике кудикамо је значајнија нова хронополитика, која би савремени свијет из беспућа етничких, вјерских и других сукобā извела у формациони заокрет ка новом, постиндустријском информационом друштву на основи коеволуционе парадигме развоја. Продор из кружног времена понављања и прерасподјеле у линијско вријеме постојаног развоја, производње и стваралаштва треба проширити на цијели свијет, на све друштвене дјелатности и друштвене скупине.
ОНТИЧКИ МОМЕНАТ (У) УМЕТНОСТИ
Authors: Вилић Наташа
Published: July 2016

Онтологија уметности отвара бројна питања у вези са уметношћу, са оним шта уметност чини уметничким, извором дела уметности и уметничког смисла, и сл. Ова и слична питања упућују нас на исцрпну философску потрагу за феноменом бића уметности које се разоткрива кроз и преко уметности. Биће уметности се не појављује само у акту стварања, него и у акту примања. То је један онтички однос, а није доживљај лепоте. Естетски феномен јесте једно онтичко збивање. Свет дела уметности поседује онтолошке карактеристике на темељу којих он постаје један самосталан свет. У свету уметности нарочито је проблематичан феномен уметничке форме. Свет (дела) уметности налази свој извор у самоме уметнику.
УЛОГА НАСТАВЕ ПРИРОДЕ И ДРУШТВА У РАЗВОЈУ КРИТИЧКОГ МИШЉЕЊА УЧЕНИКА
Authors: Јењић Славиша
Published: July 2016

Настава природе и друштва представља за ученике прво организовано сазнавање појава и процеса у природи и друштву. Непосредним и посредним посматрањем, стваралаштвом и практичним радом ученици, између осталог, развијају пажњу, мишљење и закључивање. Сазнања која ученици стичу у овој настави основа су за изучавање многих наука у каснијем школовању и животу. Стога исходи наставе нису репродуктивно понављање ријечи или текста, већ мисаоне активности потребне за живот и продуктивно мишљење. У раду ће бити ријечи о подстицању развоја критичког мишљења у настави природе и друштва. Истовремено, аутор објашњава и стваралаштво и стваралачко мишљење ученика разредне наставе.
ОДНОСИ У ПОРОДИЦИ И МЛАДИ СА ТЕШКОЋАМА У РАЗВОЈУ
Authors: Oбрадовић Савка
Published: July 2016

Основно питање овог емпиријског истраживања односи се на анализу школске успјешности ученика са тешкоћама у развоју. У том смислу је истраживање конципирано не само као анализа показатеља њихових школских резултата, него, прије свега, као компаративна анализа њихове школске успјешности у редовним и специјалним школама. Другим ријечима, рад је конципиран тако да се анализирaју сличности и разлике у школском постигнућу ученика са тешкоћама у развоју који похађају наставу у редовним и оних који похађају наставу у специјалним школама, с једне стране и да се пореде са школским постигнућима ученика који немају тешкоћа у развоју, с друге стране. У том контексту је јасно зашто су за питања школског успјеха ученика мање или више заинтересовани не само ученици, њихови родитељи и наставници, него и други друштвени чиниоци. У најширем смислу, интерес јавности за постигнути успјех ученика у школи, произилази из потреба друштва за образованијим становништвом и потребом правдања уложених средстава која се за те сврхе издвајају, те друштвеном верификацијом активности запослених радника у просвјети.
НЕКА СОЦИО-ДЕМОГРАФСКА ОБИЉЕЖЈА ПУШАЧА И НЕПУШАЧА
Authors: Иванишевић Дијана
Published: July 2016

Циљ овог рада био је испитати релације између неких социо-демографских обиљежја и пушења. Наиме, ријеч је о релацији између пола, пушачког статуса родитеља и блиских пријатеља, те материјалног и здравственог стања, с једне стране, и пушења, као веома распрострањене болести зависности, с друге стране.У истраживању је учествовало укупно 196 испитаника, и то 101 непушач и 95 пушача. Ријеч је о студентима треће и четврте године Наставничког факултета Универзитета у Мостару, који су испунили Упитник о одређеним социо-демографским обиљежјима, који је конструисан за потребе овог истраживања.Резултати су показали да постоји статистички значајна разлика у склоности ка пушењу између дјевојака и младића, те да постоји статистички значајна повезаност између склоности ка пушењу и пушења родитеља, као и значајна повезаност између склоности ка пушењу и пушења блиских пријатеља. Поред тога, утврђено је да се пушачи и непушачи значајно разликују, како с обзиром на материјално стање, тако и с обзиром на њихово здравствено стање.
О ПОТРЕБИ И МОГУЋНОСТИМА ОСТВАРИВАЊА НАЦИОНАЛНИХ И ГЛОБАЛНИХ ВРЕДНОСТИ У ШКОЛИ
Authors: Стојановић Ђорђевић Тамара
Published: July 2016

Аутор у овом раду разматра потребу и могућности унапређивања васпитно-образовног рада кроз неговање националних и глобалних вредности. Циљ емпиријског дела истраживања је да се утврди да ли наставни планови и програми по којима раде основне и средње школе у Србији, као и садржаји дати у уџбеницима, приручницима и другим дидактичким материјалима, представљају сигурну основу за остваривање националних и глобалних вредности. Такође, циљ истраживања је да се изврши испитивање процена испитаника о томе какав приступ имају наставници према изучавању националних и глобалних вредности, али и испитивање знања ученика о националним и глобалним вредностима. Узорак је обухватио 180 наставника основних и средњих школа и 353 ученика (од којих 172 ученика основних и 181 ученика средњих школа). Резултати истраживања показују да наставни планови и програми по којима раде основне и средње школе у Републици Србији не представљају сигурну основу за остваривање националних и глобалних вредности. Наставници немају адекватан однос према тим садржајима што резултира слабим знањима ученика о националним и глобалним вредностима.
KARAKTERISTIKE LIČNOSTI ZAPOSLENIH I ZADOVOLJSTVO POSLOM
Authors: Mirković Biljana , Čekrlija Đorđe
Published: July 2016

Cilj ovog istraživanja je bio: prvo, utvrditi predikitivnu vrijednost Petofaktorskog modela ličnosti za ukupno zadovoljstvo poslom i devet aspekata zadovoljstva poslom mjerenih Skalom zadovoljstva poslom (Job Satisfaction Survey), i drugo, utvrditi da li postoje značajne razlike u ukupnom zadovoljstvu poslom i devet aspekata zadovoljstva poslom zaposlenih koji se razlikuju prema demografskim obilježjima: pol, starost, nivo obrazovanja i dužina radnog staža. Uzorak ispitanika su činili zaposleni u proizvodnji, zdravstvu, prosvjeti, bankarstvu, trgovini i javnoj administraciji u Banja Luci, ukupno njih 332. U obradi podataka je korištena regresiona analiza, multivarijantna analiza varijanse, LSD test i Mann–Whitney U test. Kao značajan prediktor ukupnog zadovoljstva poslom izdvojio se neuroticizam, dok su se kao značajni prediktori zadovoljstva pojedinim aspektima posla izdvojili: ekstraverzija i prijatnost za aspekt saradnici, savjesnost za aspekt priroda posla i neuroticizam za aspekte plata, priroda posla i komunikacija. Pol pravi značajnu razliku u ukupnom zadovoljstvu poslom, zadovoljstvu platom, napredovanjem, beneficijama, nagrađivanjem i komunikacijom. Starost pravi značajnu razliku u ukupnom zadovoljstvu poslom, zadovoljstvu napredovanjem i nagrađivanjem. Nivo obrazovanja pravi značajnu razliku u zadovoljstvu rukovođenjem i prirodom posla. Dužina radnog staža pravi značajnu razliku u zadovoljstvu napredovanjem i nagrađivanjem. Dobijeni rezultati imaju značajne implikacije za selekcijske postupke i praksu upravljanja ljudskim resursima.
ОСВРТ НА ТРЕЋУ МЕДИЕВИСТИЧКУ ЗНАНСТВЕНУ РАДИОНИЦУ У РИЈЕЦИ – РИЈЕКА 2015.
Authors: Смиљанић Аранђел
Published: July 2016

Одсјек за повијест Филозофског факултета у Ријеци у сарадњи са Одсјеком за повијесне знаности Завода за повијесне и друштвене знаности Хрватске академије знаности и умјетности из Загреба организовао је Трећу медиевистичку знанствену радионицу у Ријеци. Скуп је одржан 16. октобра 2015. у просторијама Филозофског факултета у Ријеци. План организатора био је исти као и приликом организовања прве двије Радионице – да се окупе млади истраживачи средњовјековне историје (доценти, магистри, мастери)...
MutSα maintains the mismatch repair capability by inhibiting PCNA unloading
Authors: Kawasoe Yoshitaka , Tsurimoto Toshiki , Nakagawa Takuro , Masukata Hisao , Takahashi Tatsuro S
Published: July 2016

Eukaryotic mismatch repair (MMR) utilizes single-strand breaks as signals to target the strand to be repaired. DNA-bound PCNA is also presumed to direct MMR. The MMR capability must be limited to a post-replicative temporal window during which the signals are available. However, both identity of the signal(s) involved in the retention of this temporal window and the mechanism that maintains the MMR capability after DNA synthesis remain unclear. Using Xenopus egg extracts, we discovered a mechanism that ensures long-term retention of the MMR capability. We show that DNA-bound PCNA induces strand-specific MMR in the absence of strand discontinuities. Strikingly, MutSα inhibited PCNA unloading through its PCNA-interacting motif, thereby extending significantly the temporal window permissive to strand-specific MMR. Our data identify DNA-bound PCNA as the signal that enables strand discrimination after the disappearance of strand discontinuities, and uncover a novel role of MutSα in the retention of the post-replicative MMR capability.
Tunable schottky barrier in blue phosphorus–graphene heterojunction with normal strain
Authors: Zhu Jiaduo , Zhang Jincheng , Hao Yue
Published: July 2016

The graphene–blue phosphorus van deer Waals (vDW) heterojunction was studied by using density functional theory. Our calculations reveal that the intrinsic electronic structure of blue phosphorus and graphene is well preserved and forms an n-type schottky barrier at equilibrium state. With increasing of normal tensile strain, the n-type is well kept. With compressive strain, the Dirac cone of graphene gradually shifts from conduction band minimum to valance band maximum of blue phosphorus, leading a turning of schottky barrier from n-type to p-type, which indicates an effective way to tune the electronic structure of vDW heterojunction.
First-principles study of d0 ferromagnetism in alkali-metal doped GaN
Authors: Zhang Yong
Published: July 2016

The d0 ferromagnetism in GaN has been studied based on density functional theory. Our results show that GaN with sufficient hole become spin-polarized. Alkali-metal doping can introduce holes in GaN. Among them, both of Li- and Na-doping induce ferromagnetism in GaN and Na-doped GaN behaves as half-metallic ferromagnet. Moreover, at a growth temperature of 2000 K under N-rich condition, both concentrations can exceed 18%, which is sufficient to produce detectable macroscopic magnetism in GaN. The Curie temperature of Li- and Na-doped GaN is estimated to be 304 and 740 K, respectively, which are well above room temperature.
Excimer laser annealing for low-voltage power MOSFET
Authors: Chen Yi , Okada Tatsuya , Noguchi Takashi , Mazzamuto Fulvio , Huet Karim
Published: July 2016

Excimer laser annealing of lumped beam was performed to form the P-base junction for high-performance low-voltage-power MOSFET. An equivalent shallow-junction structure for the P-base junction with a uniform impurity distribution is realized by adopting excimer laser annealing (ELA). The impurity distribution in the P-base junction can be controlled precisely by the irradiated pulse energy density and the number of shots of excimer laser. High impurity activation for the shallow junction has been confirmed in the melted phase. The application of the laser annealing technology in the fabrication process of a practical low-voltage trench gate MOSFET was also examined.
Evaluation of valence band top and electron affinity of SiO2 and Si-based semiconductors using X-ray photoelectron spectroscopy
Authors: Fujimura Nobuyuki , Ohta Akio , Makihara Katsunori , Miyazaki Seiichi
Published: July 2016

An evaluation method for the energy level of the valence band (VB) top from the vacuum level (VL) for metals, dielectrics, and semiconductors from the results of X-ray photoelectron spectroscopy (XPS) is presented for the accurate determination of the energy band diagram for materials of interest. In this method, the VB top can be determined by the energy difference between the onset of VB signals and the cut-off energy for secondary photoelectrons by considering the X-ray excitation energy (hν). The energy level of the VB top for three kinds of Si-based materials (H-terminated Si, wet-cleaned 4H-SiC, and thermally grown SiO2) has been investigated by XPS under monochromatized Al Kα radiation (hν = 1486.6 eV). We have also demonstrated the determination of the electron affinity for the samples by this measurement technique in combination with the measured and reported energy bandgaps (E
g).
Easy adjustment structure and method for realizing InP based polarization beam splitter via Pockels effect dependence on crystal orientation
Authors: Watanabe Kei , Nasu Yusuke , Ohiso Yoshitaka , Iga Ryuzo
Published: July 2016

We propose a novel adjustment structure and method for an InP-based polarization beam splitter/combiner by using the characteristic whereby the sign at the front of this term changes depending on the light propagation direction. To confirm the proposed principle of adjustment for our InP-based Mach–Zehnder interferometer polarization beam splitter/combiner, we fabricated a test sample that had an npin high-mesa waveguide structure with InGaAlAs/InAlAs multiple quantum wells. By using the test sample, we demonstrated the easy adjustment of an InP-based polarization beam splitter/combiner with the individual modulation of the TE and TM modes and showed that we can output TE/TM polarization at any port as desired.
External quantum efficiency and photovoltaic performance of silicon cells deposited with aluminum, indium, and silver nanoparticles
Authors: Ho Wen-Jeng , Hu Chia-Hua , Yeh Chien-Wu , Lee Yi-Yu
Published: July 2016

In this study, the plasmonic light scattering of aluminum (Al), indium (In), and sliver (Ag) nanoparticles (NPs) deposited on silicon solar cells was demonstrated. For comparison, the dimensions of all NPs were maintained at 17–25 nm with a coverage of approximately 30–40% through the control of film deposition and thermal annealing conditions. Absorbance and surface plasmon Raman scattering were used to examine the different localized surface plasmon resonances (LSPRs) of the proposed NPs. Optical reflectance, external quantum efficiency (EQE) response, and photovoltaic current density–voltage characteristics under AM 1.5G illumination were used to confirm the contribution of the plasmonic light scattering of the NPs. The conversion efficiencies of the solar cells with Al, In, and Ag NPs increased 1.21-, 1.23-, and 1.17-fold, respectively, compared with that of the reference bare Si solar cell. The EQE response and photovoltaic performance revealed that Al and In NPs produced broadband plasmonic light scattering and increased efficiency, far exceeding the results obtained using Ag NPs.
Family Business Governance: An Economics Interpretation and Research Implications in China
Authors: Li Zengquan , Zhou Guoliang , Guan Feng , Liu Junxia
Published: July 2016

Family businesses are a common organisational form worldwide. Issues such as forms of family business governance, reasons for adopting this specific form of governance, and the governance efficiency of family businesses have attracted extensive attention from economics researchers. After reviewing relevant studies, we find that Western scholars focus primarily on the governance efficiency of family businesses, and offer insufficient empirical evidence explaining the reasons for adopting various forms of governance. By contrast, Chinese scholars have conducted extensive research on listed and unlisted family businesses in China, presenting multi-perspective studies of the economic consequences of family governance for listed companies. Building on the basic ideas of property economics, we develop a theoretical framework for analysing family governance and use it to explore the possible influence of uniquely Chinese institutional variables on family business governance. The results can serve as a reference for future research on Chinese family businesses.
Members of the methanotrophic genusMethylomarinuminhabit inland mud pots
Authors: Fradet Danielle T. , Tavormina Patricia L. , Orphan Victoria J.
Published: July 2016

Proteobacteria capable of converting the greenhouse gas methane to biomass, energy, and carbon dioxide represent a small but important sink in global methane inventories. Currently, 23 genera of methane oxidizing (methanotrophic) proteobacteria have been described, although many are represented by only a single validly described species. Here we describe a new methanotrophic isolate that shares phenotypic characteristics and phylogenetic relatedness with the marine methanotrophMethylomarinum vadi. However, the new isolate derives from a terrestrial saline mud pot at the northern terminus of the Eastern Pacific Rise (EPR). This new cultivar expands our knowledge of the ecology ofMethylomarinum, ultimately towards a fuller understanding of the role of this genus in global methane cycling.
Hierarchical organization of a Sardinian sand dune plant community
Authors: Cusseddu Valentina , Ceccherelli Giulia , Bertness Mark
Published: July 2016

Coastal sand dunes have attracted the attention of plant ecologists for over a century, but they have largely relied on correlations to explain dune plant community organization. We examined long-standing hypotheses experimentally that sand binding, inter-specific interactions, abiotic factors and seedling recruitment are drivers of sand dune plant community structure in Sardinia, Italy. Removing foundation species from the fore-, middle- and back-dune habitats over three years led to erosion and habitat loss on the fore-dune and limited plant recovery that increased with dune elevation. Reciprocal species removals in all zones suggested that inter-specific competition is common, but that dominance is transient, particularly due to sand burial disturbance in the middle-dune. A fully factorial 2-year manipulation of water, nutrient availability and substrate stability revealed no significant proximate response to these physical factors in any dune zone. In the fore- and middle-dune, plant seeds are trapped under adult plants during seed germination, and seedling survivorship and growth generally increase with dune height in spite of increased herbivory in the back-dune. Sand and seed erosion leads to limited seed recruitment on the fore-dune while high summer temperatures and preemption of space lead to competitive dominance of woody plants in the back-dune. Our results suggest that Sardinian sand dune plant communities are organized hierarchically, structured by sand binding foundation species on the fore-dune, sand burial in the middle-dune and increasingly successful seedling recruitment, growth and competitive dominance in the back-dune.
Rapid response of arbuscular mycorrhizal fungal communities to short-term fertilization in an alpine grassland on the Qinghai-Tibet Plateau
Authors: Xiang Xingjia , Gibbons Sean M. , He Jin-Sheng , Wang Chao , He Dan , Li Qian , Ni Yingying , Chu Haiyan
Published: July 2016

Background:The Qinghai-Tibet Plateau (QTP) is home to the vast grassland in China. The QTP grassland ecosystem has been seriously degraded by human land use practices and climate change. Fertilization is used in this region to increase vegetation yields for grazers. The impact of long-term fertilization on plant and microbial communities has been studied extensively. However, the influence of short-term fertilization on arbuscular mycorrhizal fungal (AMF) communities in the QTP is largely unknown, despite their important functional role in grassland ecosystems.

Methods:We investigated AMF community responses to three years of N and/or P addition at an experimental field site on the QTP, using the Illumina MiSeq platform (PE 300).

Results:Fertilization resulted in a dramatic shift in AMF community composition and NP addition significantly increased AMF species richness and phylogenetic diversity. Aboveground biomass, available phosphorus, and NO3−were significantly correlated with changes in AMF community structure. Changes in these factors were driven by fertilization treatments. Thus, fertilization had a large impact on AMF communities, mediated by changes in aboveground productivity and soil chemistry.

Discussion:Prior work has shown how plants often lower their reliance on AMF symbioses following fertilization, leading to decrease AMF abundance and diversity. However, our study reports a rise in AMF diversity with fertilization treatment. Because AMF can provide stress tolerance to their hosts, we suggest that extreme weather on the QTP may help drive a positive relationship between fertilizer amendment and AMF diversity.
Independent catalysis of the short form HisG from Lactococcus lactis
Authors: Livingstone Emma K. , Mittelstädt Gerd , Given Fiona M. , Parker Emily J.
Published: July 2016

ATP‐phosphoribosyltransferase (ATP‐PRT) catalyses the first step of histidine biosynthesis. Two different forms of ATP‐PRT have been described; the homo‐hexameric long form, and the hetero‐octameric short form. Lactococcus lactis possesses the short form ATP‐PRT comprising four subunits of HisGS, the catalytic subunit, and four subunits of HisZ, a histidyl‐tRNA synthetase paralogue. Previous studies have suggested that HisGS requires HisZ for catalysis. Here, we reveal that the dimeric HisGS does display ATP‐PRT activity in the absence of HisZ. This result reflects the evolutionary relationship between the long and short form ATP‐PRT, which acquired allosteric inhibition and enhanced catalysis via two divergent strategies.
Self‐nonself discrimination by the complement system
Authors: Meri Seppo
Published: July 2016

The alternative pathway (AP) of complement can recognize nonself structures by only two molecules, C3b and factor H. The AP deposits C3b covalently on nonself structures via an amplification system. The actual discrimination is performed by factor H, which has binding sites for polyanions (sialic acids, glycosaminoglycans, phospholipids). This robust recognition of ‘self’ protects our own intact viable cells and tissues, while activating structures are recognized by default. Foreign targets are opsonized for phagocytosis or killed. Mutations in factor H predispose to severe diseases. In hemolytic uremic syndrome, they promote complement attack against blood cells and vascular endothelial cells and lead, for example, to kidney and brain damage. Even pathogens can exploit factor H. In fact, the ability to bind factor H discriminates most pathogenic microbes from nonpathogenic ones.