bluuebunny/crossref_metadata_2025 huggingface dataset:
Variable Slip Ratio Rolling Contact Fatigue Tester
Authors: Zahui Marcellin , Deshmukh Satyam , Subedi Subodh
Published: December 2017

Rolling contact fatigue in bearings, gears, and railway tracks is a common problem experienced in many industrial applications. Given the stochastic nature of fatigue failures, design predictions are generally complex and difficult. Thus, engineers rely on extensive testing to establish design baselines and empirical analysis-equations. The objective of the work presented here is to provide detailed information in the design and validation of a variable slip ratio rolling contact fatigue (VSR-RCF) tester. The tester has three major components: (1) a mechanical system, (2) a control system, and (3) a data acquisition system. All the components are designed and intergraded to provide a fairly reasonable testing time and dry to submerged lubrication testing conditions. The major characteristics of the VSR-RCF tester are the variable slip ratio and the ability to accommodate different sizes and types of specimens. A mandrel and live center are used to hold the specimen while two hydraulic rollers apply the load. Failure is detected with an eddy currents crack-detection system. Preliminary tests on a common gear material (AISI 8620 steel) were performed to assess the mechanical limits as well as the control system software performance. Detailed development and validation of the tester are discussed along with servo drives and electronic gear ratios (EGR).
ФОРМУВАННЯ ІНВЕСТИЦІЙНОГО ПОТЕНЦІАЛУ ЗАБЕЗПЕЧЕННЯ ЕНЕРГОЗБЕРІГАЮЧИХ ЗАХОДІВ У СОЦІАЛЬНІЙ СФЕРІ УКРАЇНИ
Authors: Stavnycha N.I.
Published: December 2017

Стаття присвячена пошукам джерел інвестування заходів з енергозбереження в соціальній сфері. Метою статті є визначення можливих ресурсів для залучення їх до реалізації енергоощадних заходів у бюджетних установах держави. Для реалізації поставленої мети використані наступні методи дослідження: теоретичного узагальнення, абстрактно-логічний аналіз, порівняння. Результатами досліджень є: виокремлення проблем з точки зору енергоефективності, які мають місце у бюджетних установах; заходи з реалізації потенціалу енергозбереження; запропоновані джерела пошуку інвестицій таких заходів. Наукову новизну визначають інструменти, які можуть стати джерелами інвестицій. Практичне значення отриманих результатів полягає в тому, що запропоновані джерела інвестицій можуть бути впроваджені у практичну діяльність керівниками бюджетних установ при реалізації енергозберігаючих заходів.
ЦІННІСТЬ ПРОЕКТУ: ІСТОРИЧНИЙ ТА ЗМІСТОВНИЙ КОНТЕКСТ
Authors: Liezina A.V.
Published: December 2017

В статті розглянуто історичні етапи розвитку категорії “цінність” в різних науках, зокрема в управлінні проектами. Розроблена хронологія еволюційних змін та запозичення терміну “цінність” в різних науках. Проаналізовані існуючі підходи до визначення цінності в управлінні проектами. Подано авторське тлумачення цінності проектів. Подано авторське бачення “залізного” трикутника критеріїв управління проекту на основі трансформації класичного підходу. Розкрито змістовне наповнення цінності проектів, в тому числі, з урахуванням інтересів всіх стейкхолдерів, з точки зору їх ціннісного очікування.
ОБЛІКОВЕ ЗАБЕЗПЕЧЕННЯМ СИСТЕМИ УПРАВЛІННЯ ЕКОНОМІЧНОЮ БЕЗПЕКОЮ ПІДПРИЄМСТВА
Authors: Melnyk N. B.
Published: December 2017

У статті розкрито важливість облікового забезпечення системи управління економічною безпекою підприємства, незалежно від функцій, які виконує бухгалтер (інформаційну чи інформаційно-аналітичну). Визначено мету та основне значення даних обліку (фінансового) для керівництва окремо кожною із функціональних складових економічної безпеки підприємства: внутрішньовиробничими (фінансова, політична, правова, інтелектуальна, кадрова, технічна, технологічна, інформаційна, екологічна, соціальна, силова, інноваційна) і позавиробничими (ринкова, інтерфейсна).
Análisis espacial de susceptibilidad de erosión en una cuenca hidrográfica del trópico húmedo de Costa Rica
Authors: Pérez-Rubio Iván , Mende Andreas
Published: December 2017

El objetivo del presente estudio consiste en evaluar el estado de conservación de una cuenca hidrográfica en el trópico húmedo de Costa Rica en términos de su capacidad de proveer el servicio ecosistémico control de erosión. Mediante la interpretación de fotografías aéreas del proyecto CARTA (2005) se realizó primeramente un inventario espacial de los procesos erosivos observables en el área de estudio. Se parte del supuesto de que su distribución espacial no es aleatoria sino que depende de la interacción compleja de factores naturales y antrópicos. Para evaluar cuantitativamente dicha relación espacial se planteó un análisis de susceptibilidad de erosión. Se aplicaron dos métodos comparativos: 1) regresión logística binaria y 2) probabilidad condicional conjunta mediante el teorema de Bayes. Ambas alternativas se combinaron con un análisis estadístico bivariado basado en el cálculo de las ponderaciones de evidencia (weights of evidence) de todas las clases de los factores condicionantes incorporados en el modelo: el uso del suelo, la pendiente, la geomorfología y la distancia a la red de drenaje. Los resultados de los cálculos de las ponderaciones de evidencia y la interpretación de los coeficientes de la ecuación de regresión logística demostraron la relevancia relativa dominante del factor uso del suelo sobre la geomorfología. Los mapas de susceptibilidad resultantes fueron evaluados mediante dos procedimientos de verificación, en primer lugar, la curva del ratio de acierto (success rate) y la función ROC (Receiver Operating Characteristic); en ambos casos el método de probabilidad conjunta mostró un mayor nivel de precisión que el de regresión logística.
LYGINAMASIS INTERESŲ GRUPIŲ TYRIMAS
Authors: Šarkutė Ligita
Published: December 2017

...
Maternal Smoking and Attention-Deficit/Hyperactivity Disorder in Offspring: A Meta-analysis
Authors: Huang Lan , Wang Yan , Zhang Li , Zheng Zhen , Zhu Tingting , Qu Yi , Mu Dezhi
Published: December 2017

CONTEXT:

Attention-deficit/hyperactivity disorder (ADHD) is a common neurodevelopmental disorder in childhood. Exploring the risk factors for ADHD is helpful in preventing ADHD.

OBJECTIVE:

To explore the association between maternal smoking during pregnancy and the occurrence of ADHD in offspring.

DATA SOURCES:

PubMed, Embase, and Cochrane Library were searched from inception to May 2017 for studies.

STUDY SELECTION:

Cohort or case-control studies in which the association between maternal smoking and ADHD in offspring were investigated were eligible if they included odds ratios (ORs), hazard ratios, or risk ratios and 95% confidence intervals (CIs).

DATA EXTRACTION:

Two investigators independently extracted data on definition of exposure and outcome, number of cases and total sample population, and potential confounders adjusted. Any dose-relationship data for smoking and ADHD risk were also extracted.

RESULTS:

Fifteen cohort studies and 5 case-control studies with 50 044 cases and 2 998 059 participants were included. Smoking during pregnancy increased the risk of offspring ADHD (OR: 1.60; 95% CI: 1.45–1.76). The risk of ADHD was greater for children whose mothers were heavy smokers (OR: 1.75; 95% CI: 1.51–2.02) than for those mothers were light smokers (OR: 1.54; 95% CI: 1.40–1.70).

LIMITATIONS:

The limitations of our study included different assessment tools of ADHD and a lack of objective biological measures for maternal smoking.

CONCLUSIONS:

With our meta-analysis, we provide evidence for an association between maternal smoking and offspring ADHD but do not solve the causality issues concerning potential confounding by other risk factors. More high-quality studies are needed to establish whether the association with smoking is causal.
Yvonne Picard e a fenomenologia entre Husserl e Heidegger
Authors: De Castro Fabio Caprio Leite
Published: December 2017

Este artigo tem por objetivo apresentar e avaliar o pensamento da filósofa Yvonne Picard, a partir do único texto por ela publicado, Le temps chez Husserl et chez Heidegger. Por ser uma filósofa pouco conhecida no Brasil, será feita uma breve contextualização do seu escrito, que se insere em um momento decisivo para a recepção da fenomenologia na França, ao final dos anos 1930 e início dos anos 1940. Depois disso, mostraremos em diferentes etapas como ela procurou confrontar a filosofia de Heidegger à de Husserl através da fenomenologia da consciência do tempo. Pretendemos mostrar, ao final, como a sua solução retorna a Husserl com base em uma perspectiva dialética.
A nem alkoholos zsírmáj mint a metabolikus szindróma komponense és kauzális kapcsolatai egyéb kórképekkel
Authors: Halmos Tamás , Suba Ilona
Published: December 2017

Abstract:

Non-alcoholic fatty liver disease is the most common non-infectious chronic liver-disease in our age, and is a spectrum of all the diseases associated with increased fat accumulation in the hepatocytes. Its development is promoted by sedentary life-style, over-feeding, and certain genetic predisposition. Prevalence in the adult population, even in Hungary is ~30%. In a part of cases, this disease may pass into non-alcoholic steatohepatitis, later into fibrosis, rarely into primary hepatocellular cancer. Fatty liver is closely and bidirectionally related to the metabolic syndrome and type 2 diabetes, and nowadays there is a general consensus that fatty liver is the hepatic manifestation of the metabolic sycndrome. The importance of the fatty liver has been highly emphasized recently. In addition to the progression into steatohepatitis, its causal relationship with numerous extrahepatic disorders has been discovered. In our overview, we deal with the epidemiology, pathomechanism of the disease, discuss the possibilities of diagnosis, its relationship with the intestinal microbiota, its recently recognized correlations with bile acids and their receptors, and its supposed correlations with the circadian CLOCK system. Hereinafter, we overview those extrahepatic disorders, which have been shown to be causal link with the non-alcoholic fatty liver disease. Among these, we emphasize the metabolic syndrome/type 2 diabetes, cardiovascular disorders, chronic kidney disease, sleep apnea/hypoventilation syndrome, inflammatory bowel disease, Alzheimer’s disease, osteoporosis, and psoriasis, as well. Based on the above, it can be stated, that high risk individuals with non-alcoholic fatty liver disease need systemic care, and require the detection of other components of this systemic pathological condition. While currently specific therapy for the disease is not yet known, life-style changes, adequate use of available medicines can prevent disease progression. Promising research is under way, including drugs, manipulation of the intestinal flora or the possibility of therapeutic use of bile acid receptors, and also bariatric surgery. Orv Hetil. 2017; 158(52): 2051–2061.
KANDUNGAN FUKOSANTIN DAN FENOLIK TOTAL PADA RUMPUT LAUT COKELAT Padina australis YANG DIKERINGKAN DENGAN SINAR MATAHARI
Authors: Nursid Muhammad , Novienderi Dedi
Published: December 2017

Rumput laut cokelat Padina australis dikenal memiliki kandungan fukosantin dan fenolik total yang tinggi. Penelitian ini bertujuan untuk mengetahui kandungan fukosantin dan fenolik total serta aktivitas antioksidan P. australis yang dikeringkan dengan sinar matahari. Rumput laut cokelat diambil dari Pantai Binuangeun, Lebak, Banten, Indonesia lalu dikeringkan selama 0, 1, 2, 3 dan 4 hari.  Kandungan fukosantin dianalisis dengan kromatografi cair kinerja tinggi (KCKT) sedangkan kandungan fenolik total diukur dengan menggunakan  metode Folin-Ciocalteau. Uji antioksidan dilakukan dengan metode 1,1-diphenyl-2-picrylhydrazyl (DPPH). Hasil penelitian memperlihatkan bahwa kandungan fukosantin pada rumput laut P. australis semakin menurun seiring dengan bertambahnya waktu pengeringan sedangkan kandungan fenolik total pada hari ke 1, 2 dan 3 tidak menunjukkan perbedaan tetapi pada hari ke 4 kandungannya menurun tajam. Kandungan fukosantin dan fenolik total tersebut jauh di bawah kandungan fukosantin dan fenolik yang berasal dari rumput laut segar. Hasil uji DPPH memperlihatkan bahwa aktivitas antioksidan ekstrak rumput laut semakin menurun dengan bertambahnya waktu pengeringan. Hasil penelitian ini membuktikan bahwa fukosantin dan fenolik merupakan faktor yang menentukan aktivitas antioksidan.
Phase transformation surfaces around a crack tip for a shape memory alloys
Authors: Lexcellent Christian
Published: December 2017

Depending of the shape of the crack tip e.g. with or without curvature, the size of the phase transformation surface between a mother phase A (austenite) and a producted phase M (martensite) is different. The presentation is focussed to the modes I and II (opening and shearing modes). The elastic stress field around the crack tip without curvature is known in the litterature and the use of Linear Elastic Mechanical Theory is consistent with the deformations amplitude associated the beginning of the phase transformation (A \(\Rightarrow\) M). In order to take into account the curvature at the crack tip, one uses the approximated expressions of Creager and Paris (1967). A special attention is devoted to take into account the asymmetry between tension and compression behavior in the surfaces prediction.
Phase equilibria in the Tl2MoO4–R2(MoO4)3–Zr(MoO4)2 (R = Al, Cr) systems: synthesis, structure and properties of new triple molybdates Tl5RZr(MoO4)6 and TlRZr0.5(MoO4)3
Authors: Grossman V. G. , Bazarov B. G. , Bazarova Zh. G.
Published: December 2017

The Tl2MoO4–R2(MoO4)3–Zr(MoO4)2 (R = Al, Cr) systems were studied in the subsolidus region using X-ray powder diffraction and differential scanning calorimetric (DSC) analysis. Quasi-binary joins were revealed, and triangulation was carried out. New ternary molybdates: Tl5RZr(MoO4)6 (5:1:2) and TlRZr0.5(MoO4)3 (1:1:1) (R = Al, Cr) were prepared. The unit cell parameters for the new compounds were calculated.
Weird Times
Authors: Serpell C. Namwali
Published: December 2017

Recently, some literary critics have proposed that we might relate to texts in a different way than we're used to. Instead of plunging into critique, plumbing a text's depths, or coolly analyzing its symptoms, instead of “digging down and standing back,” as Rita Felski puts it, critics might adopt a less skeptical, less paranoid— less critical—stance. We might attend to a text's surfaces, in Stephen Best and Sharon Marcus's terms. We might get “close but not deep,” as Heather Love suggests. We might practice a new formalism, neither naive nor nostalgic but keyed to the aesthetic and the political.
Saúde: Direito ou Privilégio?
Authors: Zufelatto Aline Cristina de Andrade Alves , Alves Renato Periard
Published: December 2017

O presente artigo apresenta uma reflexão crítica acerca da saúde como direito de todos e privilégio de alguns, considerando aspectos legais, sociais e políticos onde se verifica a importância do conceito da saúde e o respeito aos preceitos legais aplicáveis visando garantir sua promoção à população de forma igualitária e efetiva.
Understanding Capabilities, Functionings and Travel in High and Low Income Neighbourhoods in Manila
Authors: Hickman Robin , Cao Mengqiu , Mella Lira Beatriz , Fillone Alexis , Bienvenido Biona Jose
Published: December 2017

Transport plays an important role in helping people to access activities and participate in life. The availability of transport networks, the modes available, new infrastructure proposals, and the type of urban development can all impact on and change activity participation, and hence contribute to social equity in the city. This article uses surveys in low and high income neighbourhoods in Manila, the Philippines, to assess the social equity implications of differential access to transport. The analysis demonstrates how the theoretical framework of the Capability Approach (Nussbaum, 2003; Sen, 1985, 1999, 2009) can be used to assess what individuals might be able to access (capabilities) versus their actual travel (functionings). The spatial patterns of travel and access to activities are assessed, demonstrating significant differences by gender, age, income and neighbourhood, in terms of travel mode and cost of travel; health, physical and mental integrity; senses, imagination and thoughts; reasoning and planning; social interaction; natural environment; sustainable modes; and information. This approach to assessing the transport dimensions of social equity offers much potential, based not only on access to resources or consumption of mobility, but also in the opportunities that people have in relation to their activity participation. The case study context is also informative, with Manila providing an example of an Asian city with high levels of private car usage, high levels of congestion, and large spatial and income differentials in travel and associated social equity.
Navigating Urban Life in Lisbon: A Study of Migrants’ Mobilities and Use of Space
Authors: Buhr Franz , McGarrigle Jennifer
Published: December 2017

Besides a more general concern over transport infrastructure, its quality and availability, mobility is also a pre-condition for city dwellers to access urban resources, facilities, employment, local services and leisure. Moreover, mobility allows urban inhabitants to uncover a city’s potentialities and to fully participate in urban life. Migrants, nevertheless, face the issue of learning to do mobility in a new environment together with the urgency for settlement, finding work, making personal connections and attending to the mundane needs of everyday life that require one to move about. This article looks at migrants’ urban mobilities in Lisbon, Portugal, from two perspectives. First, we look at migrants’ urban knowledge and skills and at how they employ their abilities to use Lisbon’s urban resources. Second, we address some of the ways place-specific urban resources of a religious nature sustain and are sustained by various (im)mobility practices. More specifically, we look to a suburban mosque run by Guinean migrants and to a Sikh Gurdwara. This mobile/place-based contrast points to the variegated (and often overlooked) forms of mobility (or lack of) that are put to practice by migrants and to how they shape the everyday of migration journeys and their capacities to enjoy city-living.
The development of the «emotion dysregulation» questionnaire
Authors: Polskaya N.A. , Razvaliaeva A.Y.
Published: December 2017

We present the “Emotion Dysregulation” questionnaire aimed at assessing the types of emotion dysregulation. The theoretic model of the questionnaire is based on two dimensions of emotion dysregulation: impulsivity/rigidity of affective reactions and cognitive distortions/deficits. The questionnaire consists of three scales: rumination, avoidance, and mentalization difficulties. The three-factor structure of the questionnaire was supported by confirmatory factor analysis. The research sample (N=210) consisted of high school students and working adults aged 15—45, 108 of the female and 102 male. The scales have adequate internal consistency, test-retest reliability, and convergent and divergent validity. The questionnaire can be used for research purposes.
Psychotherapy of everydya life (phenomenological study of dialogue)
Authors: Kopyev A.F. , Topolskaja T.A.
Published: December 2017

This article is devoted to the phenomenon of dialogue in everyday psychotherapy. The results of phenomenological research are illustrated by fragments of the interviews. Dialogue (as the occurrence оf life, a genesis event according to M.M. Bakhtin) is characterized by the following features: personal nature of communication that is not role-based; naturalness of speech; expressed purpose of supporting the “client”; the counselor’s authority in the eyes of the “client”; the novelty of the content; substantial changes in the state of the client. We distinguish between two basic types of dialogues: a dialogue with a predominant activity of a “client” and a dialogue with a predominant activity of a “counselor”. We note that within the framework of the dialogical approach it is possible to speak about a particular isomorphism of the phenomena of professional and everyday psychotherapy; we analyze the possibilities of considering the dialogue as a kind of a “connective tissue” of professional and everyday psychotherapy.
Landscape analytics: theoretical bases and psychotechnics
Authors: Belorusets A.S. , Konopeltseva Y.V.
Published: December 2017

We present an analysis of the Landscape Analytics (LA), a specific way of group psychotherapy suggested by S. Berezin and D. Isaev. Methodological bases, specific techniques and the source of the therapeutic effect are discussed. The method is regarded through the concepts of general personology, transactional analysis, analytical psychology, developmental approach and the psychological theory of activity. We point out the following aspects of LA effect: a participant’s involvement into an active exploration of the different spaces of life, activation of all ego-states simultaneously, stimulating Transcendent Function, creating a multilevel image of the world, assistance in seeing developmental tasks in connection with the super-objective. All these points can be discussed as components of generalized effect aimed at providing conditions that help participants widen and integrate their orientation.
A comparative study of central corneal thickness, mean keratometry and astigmatism in persons with and without refractive errors in Taif
Authors: Alqurashi Afnan H. , Afifi Omayma K. , Jabr Hatim F. , Aljuaid Hanan A.
Published: December 2017

Background: Corneal topography is an important parameter in the evaluation of corneal disease, but there is no average value of normal corneal geometry in Saudi individuals is known. So, this study aimed to establish a standard normal value for central corneal thickness (CCT), mean keratometry (km), and astigmatism in Saudi individuals to be used as a reference value, and to compare these results with the same parameters in patients who have refractive errors. Methods: This study was performed from January 2016 to July 2017 at King Faisal Hospital in Taif, KSA, and included a current group of 105 eyes without refractive errors, and 250 eyes with refractor errors. Results: The mean CCT value was 551.681 µm, km value was 43.426 D, and astigmatism was 0.784 D for all eyes with normal visual acuity. However, these values are the statistically significant difference between different ages, but no significant differences according to sex. Regarding the eyes with refractive error, it was found that the mean CCT was 509.66 µm, km was 46.79 D, and for astigmatism was 3.97 D. When the results of two groups were compared, there was a significant difference between them except for km in the group a; (12-20 years). Conclusions: The standard value of central corneal thickness, mean keratometry, and astigmatism in Saudi individuals is differing according to the age but it is the same in both genders. These values are differing statistically in patients with refractor error.
Morocco protest movements in the post-constitutional reform
Authors: Burdah Ibnu
Published: December 2017

dth: 0px; "> The research describes and explains the wave of protest movement in theKingdom of Morocco, one of the Muslim countries in the Western Arab, in the post-2011 constitutional referendum. The constitutional reform was carried out as a response to the large and massive people protest. Unlike the cases in other neighboring states where “Arab Spring” took place, the Moroccan movement receded without neither the fall of the regime nor massive casualties. However, intense protest kept taking place, especially in Muhammad V Street leading to the Parliament Building. Some interesting questions arise, including what the nature of the current protest is and why people still protest after the vast popular agreement toward the constitutional referendum. Based on library research and intense observation for forty days, and interviews, this study found that, to some extent, the Morocco protest has the same nature as that of the Arab Spring. The protest has “hidden agendas” although there are evidences that they dissembled in “smaller and partial issues because of some reasons”. The author holds that Morocco is an important lesson for political reform in the current turbulent Arab world and, to abroader context, in the Muslim world. 0px; "> Penelitian ini mendeskripsikan dan menjelaskan gerakan protest di KerajaanMaroko, salah satu negara Muslim di Arab Barat, paska referendum konstitusitahun 2011. Reformasi konstitusional di Maroko telah dilaksanakan sebagai respon terhadap protes rakyat dalam skala luas dan massif. Berbeda dengan yang terjadi di negara-negara “Musim Semi Arab” yang lain, gerakan protes itu surut tanpa disertai jatuhnya rezim dan jatuhnya korban dalam jumlah yang besar. Namun, Maroko masih diwarnai gerakan protes yang cukup intensif hampir setiap hari (kendati skalanya lebih kecil) khususnya di Jalan Muhammad V sampai depan gedung parlemen. Pertanyaannya adalah apa sesungguhnya karakter dari protes-protes yang masih berlangsung bahkan hingga saat ini? Mengapa mereka masih melakukan protes pasca persetujuan secara luas rakyat Maroko terhadap reformasi konstitusi? Penelitian yang dilakukan dengan cara studi kepustakaan yang didukung oleh observasi di lapangan sekitar 40 hari, berkesimpulan bahwa karakter protes itu adalah “Arab Springs” (mengarah pada penjatuhan rezim) kendati itu tak dinyatakan secara terbuka. Mereka memiliki agenda terselubung itu dan tidak mengemukakannya dengan berbagai alasan. Penulis berpendapat, Maroko adalah pelajaran penting bagi reformasi politik di dunia Arab yang sedang bergolak saat ini, bahkan mungkin pula untuk dunia Islam.
IMPLICATIONS OF SOCIAL MEDIA NETWORKS TECHNOLOGY IN INTERPERSONAL SKILLS AND ACADEMIC PERFORMANCES
Authors: El Khatib Mohamad , Rahman Khan M. Firdouse
Published: December 2017

Purpose
Social media has transformed and influenced communication, research and education in general through the vast variety of online tools which are available for communication.The objectives of the research study is to examine and analyze the influence of Social Media on the academic Performance of students and their social interpersonal skills.
Design/methodology/approach
195 samples were collected from full-time undergraduate students studying in the University from different faculties including business, engineering, law, English Studies and Language Studies. The descriptive statistics analysis was used to analyze the demographic data while inferential statistics was used in testing the research hypotheses. The results obtained from the analyses were used to interpret the outcomes.
Findings
The empirical results reveal that the students get to learn through social media differently enabling them new information and are also able to communicate easily with others. The communication exchanged is irrelevant to studies and does not help them in any manner to improve their learning. It is confirmed that the Social Media effects do not support the Learning of the students and most of the students are addicted to social media.
Practical Implications
The study confirms that it is good means to approach the students through social media whichmight boost the education in an easier way.
Originality/value
The research work is of its first kind as it focuses on the impact of social media on the academic performances of the students studying in Higher Educational Institutions.
Prekariat na polskim rynku pracy. Próba identyfikacji zjawiska
Authors: Niewiadomska Anna
Published: December 2017

Przyjmuje się, że pojawienie się prekariatu na współczesnych rynkach pracy wiąże się z nasileniem procesu globalizacji, zmian technologicznych oraz umocnieniem neoliberalnych strategii akcentujących w sposób szczególny potrzebę podnoszenia innowacyjności i konkurencyjności gospodarek. W konsekwencji przybiera na sile zjawisko zatrudnienia prekaryjnego utożsamianego z zatrudnieniem niepewnym, bez zabezpieczeń i perspektyw, głównie tymczasowego, często nisko opłacanego. Celem artykułu jest identyfikacja przyczyn i skali prekariatu na polskim rynku pracy. Wykorzystano w tym celu dostępne dane statystyczne GUS, Eurostatu oraz te pochodzące z Diagnozy Społecznej.
Análise do uso do solo no Parque Estadual da Lagoa do Açu, Campos dos Goytacazes/RJ
Authors: Costa Maxoel Barros , Oliveira Vicente De Paulo Santos
Published: December 2017

A vegetação de restinga da região Norte Fluminense teve grande parte de sua extensão eliminada a partir da colonização, que substituiu a vegetação nativa pelo cultivo canavieiro seguido de expansão agropecuária. O Parque Estadual da Lagoa do Açu (PELAG) foi criado com o objetivo de preservar parte do ecossistema de restinga remanescente, assim como campos úmidos, banhados e lagoas costeiras, reminiscentes dos ecossistemas que compunham a região antes de sua degradação. De modo a ter uma melhor caracterização da área delimitada para a sua implantação, o presente trabalho tem como objetivo o mapeamento do uso do solo no parque. A classificação foi realizada mediante classificação supervisionada com interpretação visual pixel a pixel e aplicando a máxima verossimilhança. Foram consideradas as seguintes categorias: água, solos úmidos, vegetação, solos expostos e pastos. Os resultados obtidos foram condizentes com a realidade observada em campo. Observou-se que a maior porcentagem de cobertura do solo é composta por pastagens (27,8%), seguida de áreas alagadas (25,74%) e úmidas (22,22%). Aproximadamente 15,97% da área do parque é coberta por vegetação, caracterizada principalmente por restinga. Grande parte da área do parque encontra-se desprovida de cobertura vegetal, sendo necessária a sua recomposição, principalmente a das áreas de preservação permanente.
Análises de monitoramento físico-químico e microbiológico da laguna de Iquipari
Authors: Justino Rafael Batista , Dos Santos Maria Alice Manhães , Longo Isadora Mérida Aguiar , Almeida Mariana Rodrigues , Luz Raiany De Abreu Tinoco , Oliveira Vicente de Paulo Santos de
Published: December 2017

O Estado do Rio de Janeiro possui diversas lagoas costeiras que abrigam uma vasta biodiversidade. As lagunas são consideradas produtivas e ao mesmo tempo indefesas devido ao uso antrópico, podendo ser grandes fontes econômicas, assim como uma localidade ideal de lazer e recreação. Visando a avaliar a qualidade de água da laguna de Iquipari, localizada no município de São João da Barra/RJ, o presente trabalho tem como objetivo demonstrar os resultados dos parâmetros físico-químicos e microbiológicos, e discutir os resultados oriundos das análises. Foi possível observar que os parâmetros como coliformes termotolerantes, pH e Turbidez (UNT) apresentaram valores elevados estabelecidos pela CONAMA n. 357/05. Contudo é necessário ter uma atenção à educação ambiental na localidade, assim como incentivar a preservação do meio natural em que a laguna se encontra.
The Comparison of Bay Leaf and Celery Leaf Infusion Effect on Decreasing LDL Level in Dyslipidemic Wistar Rats Model
Authors: Retnaninggalih Anjani Putri , Efendi Erfan , Hairrudin Hairrudin
Published: December 2017

Coronary heart disease (CHD) is the cause of 7,3 million death globally in 2008. The main pathophysiology process that leads to CHD is atherosclerosis which is caused by high LDL cholesterol level. The aim of this study was to explore bay leaf and celery leaf infusion effect on reducing LDL cholesterol level in dyslipidemic rat model. The type of this study was true experimental research using wistar rat (Rattus novergicus) as the sample. The rats were induced by high fat diet and PTU for two weeks then each of the group were given either bay leaf infusion, celery leaf infusion, simvastatin (positive control), or aquadest (negative control) for a week. The measurement of LDL level used Friedewald formulation. Data was analyzed using paired sample t test and one way ANOVA. As the result there was a significance reduction on LDL level after treatment with bay leaf (p=0,013) and celery leaf infusion (p=0,035) but there was no significance difference between groups (p=0,293). It was concluded that bay leaf and celery leaf infusion could reduce the LDL level in dyslipidemic wistar rat but there was no difference on the capability of the two different leafs on reducing LDL level. Keywords: dyslipidemia, LDL, bay leaf, celery leaf, wistar rats
Analysis of Risk Factors for Obesity in Urban Children in Some Elementary School in Jember Regency
Authors: Fachrunnisa Jasmine , Abrori Cholis , Rachmawati Dwita Aryadina
Published: December 2017

The prevalence of obesity in children has steadily increased, not only in the world but also in Indonesia. Urban area as a central of economic led the higher prevalence of childhood obesity than in rural areas. The objective of this study was to analyze the risk factors associated with obesity among urban elementary school childrens in Jember. A cross sectional study was conducted with a total sample of 176 pupils. Anthropometric status determined using body mass index for age and obesity stated if z-score exceed >+2SD based on WHO 2007. The questionnaire about risk factors was filled with interview. Analysis data performed with univariate, bivarate, and multivariate analysis. This study showed the prevalence of obesity was 17%. Overall, our result showed that in non modifiable risk factors, the prevalence of obesity was significantly higher in children who had obese parent when compared to children who hadn't. Children who had obese parent had the more risk of obesity by 6 times. In modifiable risk factors, children who had meal more than 3 times per day had the more risk of obesity by 2 times. Drinking milk frequently according to Dietary Guideline for American 2015 has a protective factors against obesity.Keywords: childhood obesity, urban, risk factor
The Morphological Changes of Staphylococcus Aureus Caused by Ethanol extracts of Cocoa Beans (Theobama Cacao) through In Vitro
Authors: Diyantika Dafista , Mufida Diana Chusna , Misnawi Misnawi
Published: December 2017

Staphylococcus aureus (S. aureus) is positive gram bacteria which often infect humans. The use of antibiotic for therapy is the factor of resistance. S. aureus resistant towards some biotic like tetracycline, streptomycin, chloramphenicol, ampicilin, eritromisin and penicillin. The increase of the resistance demands more findings on new drugs. Ethanol extracts of cocoa beans has a block capacity towards the growth of S. aureus via in vitro. The effect of antibacterial of ethanol extracts has already been proved. However, its morphology changes on S. aureus after given ethanol extracts of cocoa beans is not found yet. This research is aimed at studying the morphological changes on S. aureus after given ethanol extracts of cocoa beans. The research design is Quasi Experimental with Posttest Only Control Group Design. The sample used is S. aureus whereas the material tests is ethanol extracts of cocoa beans in concentration of 31.2 mg/mL; 15.6 mg/mL and 7.8 mg/mL. The negative control is sterile aquades and the positive control is cephalexin suspension 4 ug/mL. The method for observing the S. aureus morphology change is scanning electronic microscope. The research result shows that there is a morphology change. Given ethanol extracts of cacao seed at 7,8 mg/mL and 15,6 mg/mL, there is enlargement of wall cell and the unity of septum. And at 31,25 mg/mL, there is protrusion at the wall cell and enlargement of wall cell.Keywords: Antimikrobial, Cacao, SEM, Staphylococcus aureus.
The Effectivity of Extracts Soybean on Increasing Concentration of RBP (Retinol binding protein) in White Rat (Rattus norvegicus) Kwashiorkor Model
Authors: Danesty Rizsa Aulia , Fatmawati Heni , Raharjo Angga Mardro
Published: December 2017

Kwashiorkor is a disease caused by a deficiency of protein in terms of both quality and quantity. Kwashiorkor cause dysfunction in various organ systems. The purpose of this study was to determine the role of soy in increasing serum RBP levels in rat models of kwashiorkor. The liver is a vital organ for protein synthesis, one RBP. The liver is particularly vulnerable to the effects of kwashiorkor. The method used is the mice given low-protein diet for 30 days and then given extract of soybean meal for 30 days subsequent serum RBP levels were evaluated using ELISA method. The results showed that the soy extract can increase the levels of RBP in mice models of kwashiorkor. Keywords: RBP, soybean extracts and kwashiorkor
The effect of Kefir on The Immune Response of Healthy Volunteers In Vitro
Authors: Wisudanti Desie Dwi
Published: December 2017

Kefir is a functional foodstuff of probiotics, made from fermented milk with kefir grains containing various types of beneficial bacteria and yeast. There have been many studies on the effects of oral kefir on the immune system, but few studies have shown the effect of bioactive components from kefir (peptides and exopolysaccharides/ kefiran), on immune responses. The purpose of this study was to prove the effect of kefir supernatant from milk goat on healthy immune volunteer response in vitro. The study was conducted on 15 healthy volunteers, then isolated PBMC from whole blood, then divided into 5 groups (K-, P1, P2, P3 and P4) before culture was done for 4 days. The harvested cells from culture were examined for the percentage of CD4+ T cells, CD8+ T cells, IFN-γ, IL-4 using flowsitometry and IL-2 levels, IL-10 using the ELISA method. The results obtained that kefir do not affect the percentage of CD4+ T cells and CD8+ T cells. The higher the concentration of kefir given, the higher levels of secreted IFN- γ and IL-4, but a decrease in IL-2 levels. Significant enhancement occurred at levels of IL-10 culture PBMC given kefir with various concentrations (p <0.01), especially at concentrations of 1%. These results also show the important effects of kefir bioactive components on immune responses. The conclusion of this study is that kefir can improve the immune response, through stimulation of IL-10 secretion in vitro.
Effect of Leg Length Discrepancy to the Hip Function on Post Hemiarthroplasty Patients in Jember
Authors: Kurniawan Yosalfa Adhista , Hasan Muhammad , Normasari Rena
Published: December 2017

Hip fractures in elderly patient are often treated with hemiarthroplasty. Hemiarthroplasty can cause various complications, one of which is leg legth descrepancy (LLD). The function of the hip joint is reduced due to these complications. Previous studies have shown contradictive results regarding the relationship of LLD to the function of the hip joint in post-arthroplasty patient's. This type of research is observational with retrospective study. The population in this study came from 2 hospitals in Jember was 53 patients and the sample was 30 people. LLD is measured by true leg length and apparent leg length, whereas hip joint function is measured by Oxford Hip Score (OHS). The data were tested by using Spearman correlation test. In conclusion, there was a moderate relationship between LLD true leg length to the function of the hip joint. This study does not support the implications of the LLD to the hip function because of weak relationship between LLD true leg to the hip function and moderate relasionship between LLD apparent leg length to the hip function.
The effect of Education Level on the use of Additive Substance in Food at Mastrip, Kalimantan and Jawa Street, Jember
Authors: Dewi Eva Rosita
Published: December 2017

Background: Additive Substance or that recognized with Indirect material substance is indirect material at food that is added to add flavour at food, in order to food drawing appearance, durable, and easy to transport and distribute. This Research is conducted to know formal influence of education level cloister trader to the usage of additive substance at food all the way Mastrip, Street of Kalimantan and Street of Java, Jember in 2016. This is the analytic survey research with cross sectional approach using sample cloister trader all the way Mastrip, Street of Kalimantan and Street of Java that sell food by using total technique sampling of 104 respondents. Analysis that is used is linear regression. After conducting interview by questionnaire it was obtained the following primary data 10 traders (9,6 %) by level of College education, 49 samples (47,1%) finish high school, 23 traders (22,1 %) finish junior high school, 19 traders (18,3) finish basic school and 3 traders (2,9 %) not finish basic school. From research result got influence that have a meaning of from variable formal education level 19%. Conclusion that got from this research result, after conducted linear analysis of regression test with a = 0,05 then got probability value from formal education level is 0,000. This condition indicates that there is formal influence of education level cloister trader to the usage of additive substance at food.Key Words : education level, additive substance, cloister trader
Hubungan Pendapatan, Total Pengeluaran, Proporsi Pengeluaran Pangan dengan Status Ketahanan Rumah Tangga Petani Gurem (Studi di Desa Nogosari Kecamatan Rambipuji Kabupaten Jember)
Authors: Amalia Isma Nur , Mahmudiono Trias
Published: December 2017

Background: The realization of household food security is one of the indicators of national development. Efforts to improve food security by the fulfillment of food people on poverty dominated by smallholders.Objectives: of this research is to analyze the level of household food security according to income, expenditure and proportion of food of smallholder farmers. Methods: This study used cross sectional design with 51 sample households taken through propotional sampling method which has represented 7 farmer groups. Then the data analysis used by spearman and chi-square statistic test. Result: This result showed relation between income p-value = 0.001 (p < 0.05), household food expenditure p = 0.001 (p < 0.05) and proportion of household food expenditure p = 0.001 (p < 0.05) and household food security status. Conclusion: All variable are income, expenditure and proportion of food related to the level of food security of smallholder households.ABSTRAK Latar belakang: Terwujudnya ketahanan pangan rumah tangga menjadi salah satu indikator pembangunan nasional. Upaya untuk meningkatkan ketahanan pangan dengan pemenuhan pangan masyarakat di bawah kemiskinan yang didominasi oleh petani gurem.Tujuan: penelitian adalah  menganalisis tingkat ketahanan pangan rumah tangga menurut akses ekonomi yang terdiri dari pendapatan, total pengeluaran, proporsi pengeluaran pangan.Metode: Penelitian menggunakan desain cross sectional dengan besar sample sebesar 51 rumah tangga yang diambil melalui metode propotional sampling yang telah mewakili 7 kelompok tani. Analisis data menggunakan uji statistik spearman dan chi-square.Hasil: terdapat hubungan pendapatan (p-value= <0,001), total pengeluaran (p-value= 0,001) dan proporsi pengeluaran pangan (p-value= 0,001) dengan status ketahanan pangan rumah tangga petani gurem.Kesimpulan: Semua variabel yakni pendapatan, total pengeluaran dan proporsi pangan berhubungan dengan tingkat ketahanan pangan rumah tangga petani gurem.
Efektivitas Buku Edukatif Berbasis Games Terhadap Perubahan Pengetahuan Serta Sikap Tentang Sayur Dan Buah
Authors: Ferwanda Anja Farahyani , Muniroh Lailatul
Published: December 2017

Background: school-age children is a child’s growth and development period so that the optimal nutrient intake is needed both in quality and quantity. Low intake of vegetables and fruits as a source of micronutrients is one of the dietary deviation problems in school-age children. Objective: The purpose of this research was to analyze the effect of nutrition education by a game-based educational book to the changes of knowledge and attitude of fruit and vegetable consumption in the fifth-grade student. Methods: this research was a quantitative used pre-experiment research design of one group pre-post test. The samples were 34 students of fifth grade from the Elementary School of Suko 1 Sidoarjo, selected by simple random sampling. This research conducted for a month, consisted of 4 sessions of the lesson, each session hold for about 60 minutes. Data were collected by questionnaires and game-based educational book media. The bivariate data were analyzed by paired t-test. Result: the result showed that there was a significant different of knowledge (p=0.000) and attitude (p = 0.038) after nutrition education by game-based educational book about vegetables and fruit consumption. Conclusion: the conclusion of this study is nutrition education by a game-based educational book can improve the knowledge and changes in attitude of consumption of vegetables and fruit in elementary school students.ABSTRAK Latar Belakang: Usia anak sekolah merupakan masa tumbuh kembang anak sehingga dibutuhkan asupan zat gizi secara optimal baik dari segi kualitas maupun kuantitas. Rendahnya asupan sayur dan buah sebagai sumber zat gizi mikro merupakan salah satu kesalahan pola makan pada anak usia sekolah adalah.Tujuan: penelitian ini bertujuan untuk menganalisis perubahan pengetahuan serta sikap konsumsi sayur dan buah siswa kelas 5 SDN Suko1 Sidoarjo setelah diberi pendidikan gizi melalui media buku edukatif berbasis games.Metode: Penelitian ini merupakan penelitian kuantitatif dengan desain penelitian pra-experiment with one group pre-post test. Sampel penelitian sebesar 34 siswa kelas 5 SDN Suko 1 Sidoarjo yang dipilih secara simple random sampling. Penelitian ini dilakukan selama satu bulan dengan penyampaian materi sebanyak 4 kali selama kurang lebih 60 menit untuk tiap pertemuan.  Instrumen penelitian yang digunakan dalam proses pengumpulan data meliputi kuesioner dan buku edukatif berbasis games. Analisis data bivariat yang digunakan pada penelitian ini adalah uji paired t-test.Hasil: Hasil penelitian menunjukkan bahwa terdapat perbedaan pengetahuan (p=0,000) dan sikap (p=0,038) yang signifikan antara sebelum dan setelah diberi pendidikan gizi.Kesimpulan: pendidikan gizi melalui media buku edukatif berbasis games mampu meningkatkan pengetahuan dan sikap siswa tentang sayur dan buah.