bluuebunny/crossref_metadata_2025_split huggingface dataset:
Strategi Adaptasi Orang Laut di Batam
Authors: Hutagaol Novita Mandasari 
Published: November 2019

Artikel ini mengkaji tentang strategi adaptasi Orang Laut di Batam. Pembangunan di Batam yang berkembang ke arah modernisasi berdampak kepada kehidupan Orang Laut sebagai etnik lokal. Pembangunan di tahun 1970-an di Batam mengakibatkan Orang Laut direlokasi ke darat oleh pemerintah pada masa Orde Baru. Pada akhirnya Orang Laut mengikuti peraturan pemerintah untuk tinggal dan menetap di darat dan melakukan aktivitas sosial seperti masyarakat pada umumnya. Terdapat beberapa bentuk strategi adaptasi yang dijalankan, yakni tetap melakukan aktivitas penangkapan ikan dengan membuat modifikasi alat tangkap dan menjalankan kehidupan sehari-hari dengan tinggal di rumah apung.Kata kunci: Strategi adaptasi, Orang Laut, Batam.
Analisis Implementasi Model Quantum Teaching dalam Pembelajaran
Authors: Lubis Hasrita 
Published: November 2019

Analisis kajian metode untuk dijadikan model pembelajaran perlu dilakukan agar para pebelajar dapat mendesaian rancangan pembelajarannya yang mengacu secara holistik membangun kepribadian siswa memiliki kompetensi tujuan Pendidikan Nasional. Kajian ini menganalisis indikator perilaku pembelajaran implementasi metode Quntum Teaching berasakan tujuan Pendidikan Nasional dalam Undang-Undang Nomor 20 Tahun 2003. Proses pembelajaran dengan mengamalkan indikator metode Quantum Teaching dalam aktivitas pembelajaran yang dilaksanakannya memberdayakan kompetensi tujuan Pendidikan Nasional mengalami proses internalisasi di dalam kepribadian siswa secara berkelanjutan.Kata kunci: Quantum Teaching, pembelajaran, pendidikan nasional.
Meningkatkan Minat Belajar Siswa pada Kompetensi Dasar Politik Luar Negeri Mata Pelajaran PKN melalui Penggunaan Model Pembelajaran Kooperatif Tipe Tari Bambu Kelas VIB SD Negeri 060930 Medan Johor
Authors: Sembiring Sorita Br 
Published: November 2019

Penelitian ini bertujuan untuk mengetahui apakah dengan menggunakan model pembelajaran kooperatif tipe tari bambu dapat meningkatkan minat belajar siswa pada mata pelajaran PKn di Kelas VIB SD Negeri 060930 Medan Johor T.A 2014/2015. Jenis penelitian ini adalah “Penelitian Tindakan Kelas”, dengan menggunakan model pembelajaran kooperatif tipe tari bambu. Penelitian ini bertujuan untuk mengetahui bahwa dengan menggunakan model pembelajaran kooperatif tipe tari bambu dapat meningkatkan minat belajar siswa pada pokok bahasan politik luar negeri di Kelas VIB SD Negeri 060930 Medan Johor. Penelitian ini terdiri dari 2 siklus, siklus I dan siklus II masing-masing memiliki 2 pertemuan. Pada setiap pertemuan peneliti melakkukan observasi belajar terhadap siswa, untuk mengetahui tingkat minat belajar siswa. Berdasarkan hasil observasi yang dilakukan penulis dengan guru Kelas VIB SD Negeri 060930 Medan Johor yang dilakukan terhadap 30 orang siswa terdapat 24 orang siswa (80%) yang memiliki minat belajar yang kurang dan 6 orang siswa (20%) yang memiliki minat yang cukup. Kemudian pada siklus I memiliki nilai rata-rata 44 (55%), sedangkan pada siklus II yaitu sebesar 69 (87%). Berdasarkan hasil penelitian dari tes siklus I dengan siklus II terjadi peningkatan yang signifikan, dengan demikian dapat disimpulkan bahwa dengan menerapkan model pembelajaran kooperatif tipe tari bambu dapat meningkatkan minat belajar siswa pada mata pelajaran PKn pokok bahasan politik luar negeri di Kelas VIB SD Negeri 060930 Medan Johor. Tahun Ajaran 2014/2015.Kata Kunci: Minat Belajar, Pembelajaran Kooperatif.
Large solutions of elliptic equations involving critical exponents
Authors: Atkinson F.V. , Peletier L.A. 
Published: November 2019

We consider positive radial solutions of the equation −Δu=λuq+u(N+2)/(N−2) 1≤q<(N+2)/(N−2) in the unit ball B in RN, which vanish on the boundary. For c>0, let λ(c) and u(·,c) as denote the eigenvalue and eigenfunction with the property that u(0,c)=c. In this paper we obtain precise estimates for λ(c) and u(·,c) as c tends to infinity.
Approximation of solutions of y″=ϕ(x,ε)y with several transition points and moving singularities
Authors: Gingold H. 
Published: November 2019

Given a second-order linear differential equation y″=ϕ(x,ε)y. Let ϕ(x,ε) be a meromorphic real-valued function of two independent variables x and ε. x is allowed to vary on an interval [a,b] and ε varies on (0,ε0]. The approximation of its solutions, as well as of their derivatives as ε→0+ are provided for the entire interval [a,b] in the presence of several-coalescing transition points. Approximations on closed subintervals of [a,b] are provided. The end points of those subintervals are allowed to coincide with turning points. The approximations given could replace a nonrigorous analysis in the literature which had similar goals and in which an error was found. The formulas could prove to be useful for numerical implementation in problems of wave propagation in inhomogeneous medium. Our methods avoid analytic continuation, Langer transformations and special functions.
On the existence of eigenvalues of a divergence-form operator A+λB in a gap of σ(A)
Authors: Alama S. , Avellaneda M. , Deift P.A. , Hempel R. 
Published: November 2019

We consider uniformly elliptic divergence type operators A=−Σ∂jaij(x)∂i with bounded, Lipschitz continuous coefficients, acting in the Hilbert space L2(Rν). It is easy to see that such an operator cannot have discrete eigenvalues below the infimum of the essential spectrum. In order to produce eigenvalues with exponentially decaying eigenfunctions we study the family of operators A+λB=−Σ∂j(aij(x)+λbij(x))∂i, λ≥0, where A is supposed to have a spectral gap, while (bij)≥0 and bij(x)→0, as x→∞. One of our main results assures that discrete eigenvalues of A+λB move into the gap, as λ increases, if the support of the matrix function (bij) is large enough. In addition, we analyze the connection between decay properties of the coefficient matrix (bij) and the asymptotics of the associated eigenvalue counting function; these results are modeled on our earlier work in the Schrödinger case.
On passing to the limit for non-convex variational problems
Authors: Amar Micol , Cellina Arrigo 
Published: November 2019

In this paper, we consider a sequence of integral functionals Fn:X→(−∞,+∞], where X is the set of those functions u belonging to W1,p(0, T), p > 1, satisfying: u(0) = A, u(T) = B. For every n∈N,Fn is represented by the sum of two integrands, where the first one is T-periodic in time and non-convex with respect to u′ and the second one depends only on u. We give a necessary and sufficient condition in order to obtain the existence of an integral functional F∞:X→(−∞,+∞] such that, for every minimizing sequence (un) converging to u∞, the lower limit of the corresponding sequence Fn(un) coincides with F∞(u∞). The integrand function in F∞ does not depend on time and, in general, it is non-convex with respect to u′.
Necking deformation in non-linear elasticity
Authors: Mascolo E. , Migliaccio L. 
Published: November 2019

We study the asymptotic behaviour of the minimizers of the variational problem: min {∫a−a[ε2(u′)2(x)+W(u(x))]dx:u∈L1(−a,a),u≥0,∫a−au(x)dx=m,u(−a)=u(a)=c}, where m/2a∈(α,β) and W is a non-negative, continuous and non-convex function, with W(u) = 0 iff u∈{α,β}. We prove that the presence of the necking is related to the value c; more precisely, we have a “neck” if c<α and a “buldge” if c>β.
Asymptotics of variational eigenvalues of non-linear Sturm-Liouville problems with two parameters on general level sets
Authors: Shibata Tetsutaro 
Published: November 2019

We consider the non-linear Sturm-Liouville problem with two parameters on general level set Nα: [Formula: see text] where p>1, μ,λ∈R are parameters and [Formula: see text] We establish an asymptotic formula of n-th variational eigenvalue λ=λn(α) of (1) as α→−∞: λn(α)=Cμ(−α)(1−p)/2+o((−α)(1−p)/2). Furthermore, we give an asymptotic formula of Cμ as μ→∞.
Effet d'Aharonov-Bohm sur un état borné de l'opérateur de Dirac
Authors: Parisse B. 
Published: November 2019

On s'intéresse ici à l'étude lorsque h→0 (en limite semi-classique) de l'opérateur de Dirac défini sur C∞(R3;C4) par: (1) Dt(h)=Σ3j=1αj(hDj+tAj)+α4+V(x).I4, en présence d'un champ magnétique B = rot A nul en-dehors d'un cylindre (ici les αj désignent des matrices 4 × 4 qui anticommutent). Dans le cas de l'opérateur de Schrödinger en dimension 2, si le champ magnétique est nul en-dehors d'un disque, B. Helffer a montré qu'il peut apparaître un effet de flux qui décale les valeurs propres de l'opérateur sans champ magnétique, cet effet de flux est nommé effet d'Aharonov-Bohm. On montre ici qu'il en est de même pour l'opérateur de Dirac et on verra qu'en limite non-relativiste l'effet d'Aharonov-Bohm provoque un découplage des valeurs propres (qui sont de multiplicité paire en l'absence de champ magnétique).
Comportement asymptotique de solutions d'équations elliptiques semi-linéares dans un cylindre
Authors: Brada A. 
Published: November 2019

Cet article a pour but l'étude du comportement asymptotique de la solution d'équations d'évolution du second ordre, de la forme: [Formula: see text] Ω étant, soit un ouvert borné de RN (partie I et II), soit RN (partie III), et β une fonction continue, monotone, sur R. De nombreux résultats ont été obtenus ces dernières années sur de tels sujets, notamment par H. Bérestycki et L. Nirenberg dans [4], puis par V.A. Kondratiev et O.A. Oleinik (voir [11] et [12]). Dans [4], H. Bérestycki et L. Niremberg étudient, entre autres, des équations du type [Formula: see text] où S={x=(x1,x2,…,xn); y=(x2,…,xn)∈Ω}, Ω étant un domaine borné de Rn−1. Dénotant par [Formula: see text] (avec g(y,0)=0), et désignant par λ1 la première valeur propre de l'opérateur (−Δ+a(y)) dans Ω, avec condition de Dirichlet sur ∂Ω, ces auteurs montrent que pour β=0, et sous l'hypothèse λ1>0 (et fonction propre correspondante ϕ>0), il existe une constante positive α telle que la solution u de (2) avec condition de Dirichlet u=0 sur ∂S, vérifie: [Formula: see text] lorsque x1→+∞. Des résultats analogues sont aussi prouvés lorsque des conditions de Riemann sont imposées sur ∂S. Les résultats que nous proposons ici sont, pour certains, antérieurs aux travaux cités ci-dessus (voir [5]): ils font suite à ceux obtenus par L. Véron et P. Baras dans [2], et L. Véron et A. Gmira dans [9] et [10], pour l'équation parabolique: [Formula: see text] Ce travail comporte trois parties: 1. Comportement asymptotique de la solution u de (1) dans un ouvert borné avec condition de Neumann au bord. Plus particulièrement, pour $\beta{:}\ r\mapsto r|r|^{p-1},p>1$ , et u0∈L1(Ω), on obtient: [Formula: see text] uniformément sur $\overline{\Omega}$ . On peut, en outre, préciser ce qui se passe si l=0: il existe un entier k>0 telle que $\mathrm{e}^{\sqrt{\lambda_{k}}t}u(t,\cdot)$ converge, pour t→+∞, vers un élément non nul ψk(·)∈ker(Δ+λk id) (λk étant une valeur propre de −Δ dans Ω). 2. Comportement pour des conditions de Dirichlet au bord. Pour u0∈L2(Ω), et en désignant par λ1 la première valeur propre de −Δ dans Ω, on montre que [Formula: see text] Cette limite est donc de la forme αh0, h0 étant un générateur du sous-espace propre: on étudiera alors quelques propriétés de l'application $u_{0}\mapsto \alpha$ . En particulier, pour β(r)=r|r|p−1 et α=0, il existe une valeur propre λk de −Δ dans Ω, telle que [Formula: see text] 3. Comportement asymptotique dans RN. Ici aussi, il dépend essentiellement du signe de p−(N+2)/N et de la décroissance de u0. On aura: [Formula: see text] pour u0≥0 et [Formula: see text] Pour u0∈L1(RN) et p≥(N+2)/N, on obtient: [Formula: see text] uniformément sur les ensembles de la forme {x∈RN: |x|≤ct}. En outre, si p=(N+2)/N, C=0.
Effective fluid flow in a porous medium containing a thin fissure
Authors: Bourgeat Alain , Marušić-Paloka Eduard , Mikelić Andro 
Published: November 2019

We consider the behavior of the solution to Stokes system in porous medium, with characteristic size of the pores ε and containing a thin fissure {0≤xn≤η}, of width η. The limit when ε and η tend to zero gives the effective (or homogenized) behavior for the flow. Depending on the comparison between ε and η we obtain three possible limits: – When η<κε2/3 the fissure is not giving any contribution, i.e., the effective fluid flow is governed by the Darcy law. – When η~κε2/3 the coupling effect appears and the effective flow behaves like Darcy flow in the porous medium coupled with the tangential flow on the surface {xn = 0}. Compared to the previous case η<ε2/3, the effective velocity has now an additional tangential component concentrated on {xn = 0}. – When η>κε2/3 the fissure is dominant and the tangential flow at {xn = 0} is dominant. Meanwhile in the other part of the porous medium the effective velocity is equal to zero.
Designing Hospital Key Performance Indicators for Academic Centers: Measuring the Average Length of Stay
Authors: Ayoub Omar A. , AlAma Mohamed N. , AlGhalayini Kamal M. , Alhejily Wesam A. , Abdulwahab Mohammed S. , Fallatah Hind I. , Jawa Hani A. , Qari Yousef A. , Bazarah Salem M. , Al Johaney Ahmed A. , Wali Siraj O. , Sanosi Ayman K. , Alshareef Aysha A. , Alshehri Abdulraheem M. , Almekhlafi Mohammed A. , Alkhayyat Shadi S. , AbuSanad Atal M. , Fathaldin Omar A. , Alhozali Amani M. , Mosli Hala M. , Ghamri Kholoud A. , Binhasher Nawal N. , Alhozali Hanadi M. , Nabalawi Rana A. , Al Beladi Fatma I. , Basheikh Mohammed A. , Al Aama Tareef A. , Al Zaben Faten N. , Bajunaid Nisreen F. , Jali Ibtisam M. , Kaki Reham M. , Alsulami Fahad , AlKaaki Aroub , Khoja Mohamed I. 
Published: November 2019

Background: Length of stay is an important performance indicator for hospital management and a key measure of health care efficiency. This paper aims to determine the average length of stay in our center and the factors that influence it. We also investigate whether our hospital's length of stay is a key performance measure that can be used to design quality improvement initiatives.
Methods: We performed a retrospective analysis of hospitalizations at the Multi-disciplinary Internal Medicine Department of King Abdulaziz University Hospital, Jeddah between 2010 and 2013. We collected data including demographics, admitting diagnosis, admitting unit, treatments administered, and history of transfer from the Intensive Care Unit.
Results: The mean length of stay was 5.9 (6.8) days. Patients admitted through the Emergency Department were more likely to have a longer hospital stay compared with those admitted through Day Care or the Outpatient Department (P < 0.001). Expatriates (P < 0.001), bedridden patients (P = 0.02), and those who received prophylaxis for deep venous thrombosis (P < 0.001) were more likely to have a longer length of stay than the rest of the sample. Furthermore, patients admitted in the morning hours had a significantly shorter length of stay than those admitted in the evening hours (P < 0.001).
Conclusion: The length of stay among patients at our department is affected by hospital- or patient-specific factors. Health care can be improved by identifying and monitoring the length of stay in high-risk patients.
Perception and Reality - A Study of Public Knowledge and Perceptions about Irritable Bowel Syndrome
Authors: Qari Yousef A. 
Published: November 2019

Objective: This study aims to assess the publications knowledge base and attitudes toward irritable bowel syndrome.
Methods: This cross-sectional survey was conducted from February 1 through May 1, 2015, at public venues in Jeddah. A self-administered questionnaire was designed to assess the participants' knowledge of irritable bowel syndrome. Questions were categorized as high- or low-impact based on the relevance of the question to explore more serious underlying disease. An independent t-test was used to compare group means, assuming normal distribution.
Results: We recruited 376 participants; women accounted for 79.8% of the sample. Participants had fair knowledge about irritable bowel syndrome: the average frequency of correct answers on all 16 questions was 8.9 ± 2.0 (range, 3-14). One hundred sixty-one (42.8%) participants responded correctly to at least half of the questions that assessed knowledge of irritable bowel syndrome causes. Three hundred forty-four (91.5%) participants responded correctly to at least half of the questions that assessed knowledge of symptoms. Females were more knowledgeable on irritable bowel syndrome symptoms (p = 0.003). Respondents who had attended university were also more knowledgeable about irritable bowel syndrome symptoms (p = 0.032) and performed better on high-impact questions (4.3 ± 1.6 versus 3.8 ± 1.6 for respondents who had not attended university; p = 0.006).
Conclusion: Participants had a poor understanding of the causes and complications of irritable bowel syndrome, suggesting that there is room for appropriate programs to educate the population about this common condition.
Correlation Between the Frequency of Painful Crises in Sickle Cell Anemia and the Biomarkers of Inflammation, Endothelial Dysfunction, Coagulation Activation and Bone Metabolism
Authors: Barnawi Amnah I. , Qari Mohamad H. , Abulnaja Khalid O. , Mousa Shaker A. 
Published: November 2019

Objective: Sickle cell anemia is a widespread inherited hemolytic anemia, characterized by chronic hemolysis, infections, recurrent occlusion of the microcirculation and painful crises. In this cross-sectional study, we investigated the correlation between biomarkers of inflammation, endothelial dysfunction, coagulation activation and bone metabolism, with the frequency of painful crisis in sickle cell anemia adult patients, to understand the potential role of these biomarkers in the management of sickle cell anemia.
Methods: Sixty-three sickle cell anemia patients were enrolled in this study. They were divided into three groups based on the frequency of pain crises to mildly, moderately, and severely affected. Twenty-five healthy volunteers were enrolled as controls. Plasma levels of different biomarkers were tested, including tumor necrosis factor alpha, soluble intercellular adhesion molecule-1, D-dimer, sclerostin, and nitric oxide.
Results: Tumor necrosis factor alpha, soluble intercellular adhesion molecule-1, and D-Dimer plasma levels were significantly higher in sickle cell anemia patients when compared to the controls, while nitric oxide levels were notably lower in the patients' group. Sickle cell anemia patients with severe pain showed higher tumor necrosis factor alpha, soluble intercellular adhesion molecule-1 and D-dimer levels than those mildly and moderately affected with painful crisis. Positive correlations were observed between all measured biomarkers and the frequency of the painful crisis, except for nitric oxide, which showed a negative correlation.
Conclusion: Tumor necrosis factor alpha, soluble intercellular adhesion molecule-1, nitric oxide, and D-dimer can be used to assess sickle cell anemia severity and prognosis, and thus may affect determining appropriate management strategies.
Survey of Drug-Resistant Tuberculosis Patients in a University Tertiary Hospital in Saudi Arabia
Authors: Kaki Reham M. , Al-Abdullah Nabeela A. , Abulkalam Mahdi M. , Ashgan Nawaf T. , Aldini Mohammed A. , Dafterdar Abdulrahman M. 
Published: November 2019

Objective: Drug-resistant tuberculosis is a major health problem worldwide. In Saudi Arabia, 16.4% of tuberculosis cases were found to be resistant to at least one first-line drug. This study aims to assess and determine patterns of tuberculosis drug resistance among patients with culture-positive tuberculosis in order to develop an appropriate treatment strategy.
Methods: Data for 51 patients with culture-proven drug-resistant tuberculosis from January 2006 to January 2017 seeking treatment at the King Abdulaziz University Hospital were retrospectively analyzed. World Health Organization criteria were used to classify cases according to type of resistance: monoresistant, polyresistant, and multidrug resistant.
Results: Of the 299 tuberculosis positive cases there were 51 cases of drug-resistant tuberculosis, of which 60.8% were monoresistant (isoniazid, 17.6%; rifampin, 5.88%; pyrazinamide, 11.76%; ethambutol, 3.92%; streptomycin, 21.57%), 25.49% were multidrug-resistant tuberculosis, and 13.73% were polyresistant. Moreover, 18% involved children, 37% adolescents, 17.6% early adults, 17.6% late adults, and 11.76% elderly. Two-thirds of the patients were non-Saudi (76.46%). We found that 5.8% of the patients were HIV positive and 50% of these patients demonstrated monoresistant tuberculosis. Moreover, 47.05% of patients had type 2 diabetes. A total of 45 (88%) patients had primary resistance and 6 had secondary resistance. Radiologically, 60.78% of the patients had cavitary tuberculosis and 64% had bilateral pulmonary disease.
Conclusions: Our results show that the pattern of tuberculosis drug resistance observed within King Abdulaziz University Hospital is similar to that observed globally.
Constitutional lawmaking on the protection of the rights of national minorities in the West Ukrainian People’s Republic
Authors: Myshchak I. М. 
Published: November 2019

Проблема захисту прав національних меншин з плином часу не втрачає своєї актуальності. Для європейського континенту ця проблема актуалізується потужними міграційними процесами, у тому числі й напливом значної кількості нелегальних мігрантів, які з часом отримують у країні перебування визначений правовий статус та апелюють до захисту своїх національних прав. Для України ця проблема актуалізується агресивними діями Російської Федерації, яка анексію частини суверенної території України намагається видати за захист прав російськомовної національної меншини. Характерно, що подібна ситуація мала місце і сто років тому, коли на руїнах Російської й Австро-Угорської імперій утворювалися нові держави, зокрема й Українська. Тому тогочасний досвід пошуку правових моделей забезпечення міжнаціональної злагоди і захисту прав громадян різних національностей на території багатонаціональної держави є цікавим і в нинішніх політико-правових реаліях.
Метою статті є аналіз норм щодо захисту прав національних меншин у конституційних актах ЗУНР.
Наукова новизна полягає в аналізі проектів конституційних актів ЗУНР, як багатонаціональної держави, з точки зору забезпечення прав національних менших та налагодження мирного співіснування представників різних національностей в одній державі.Висновки. Державне будівництво на західноукраїнських землях під час Української революції 1917–1921 років супроводжувалося розробленням конституційних актів та інших базових законів, які мали урегулювати як основні засади державного ладу, так і права та свободи громадян. Конституційні акти та проекти Основного Закону ЗУНР, розроблені С. Дністрянським, надавали широкі права національним меншинам. Вони включали не лише право послуговуватися рідною мовою в побуті та навчати нею дітей, а й право користуватися рідною мовою в державних установах, зокрема судах, у зв’язку з чим державні службовці були зобов’язані володіти трьома мовами – українською, німецькою та польською, а також право на національну автономію та власне національне представництво в парламенті.Показовим є те, що ряд норм, запропонованих С. Дністрянським, уже після Другої світової війни були включені до Загальної декларації прав людини, проголошеної Генеральною Асамблеєю Організації Об’єднаних Націй 10 грудня 1948 року, та інших міжнародних актів ООН щодо захисту прав людини і національних меншин. Відповідні положення щодо захисту прав національних менших сьогодні гарантуються чинною Конституцією України та розвинуті в інших національних законах.