bluuebunny/crossref_metadata_2025_split huggingface dataset:
Boundary Value Problems of Bending of A Plate for an Infinite Doubly-Connected Domain Bounded by Broken Lines
Authors: Kapanadze G. 
Published: May 2019

Abstract
A problem of bending of a plate is considered for an infinite doubly-connected domain bounded by two convex broken lines when the plate boundary is hinge-supported and normally bending moments are applied to the points at infinity. A similar reasoning is used to study a problem of bending of a plate for an infinite domain bounded by a convex polygon and a rectilinear cut or for an infinite domain with two rectilinear cuts.
On the (C, –1 < α < 0)-Summability of Series with Respect to Block-Orthonormal Systems
Authors: Nadibaidze G. 
Published: May 2019

Abstract
Statements connected with the (C, α) (–1 < α < 0)-summability almost everywhere of series with respect to block-orthonormal systems are given. In particular, it is stated that if , then the condition guarantees the (C, α)-summability almost everywhere of the series with respect to an {ϕ

n
} – (Nk
, Nk

+1]-orthonormal system.
The Morse Formula for Curves Which are not Locally Simple
Authors: Abdulaev R. 
Published: May 2019

Abstract
Let be an interior mapping of the unit disk, continuous in D2
and such that the restriction of f to the unit circle S
1 is a locally simple curve γ. Suppose that f(a) ≠ a on S
1 and denote by n(a) the number of solutions of the equation f(z) = a in D2
, by μ(f) the sum of multiplicities of the critical points of f in , by q(a) the angular order of γ with respect to a, and by τ(γ) the angular order of γ. It is proved that the Morse formula
2n(a) – μ(f) – 2q(a) + τ(γ) – 1 = 0
remains correct for a piecewise smooth curve which is not locally simple.
Singular Integral Equations in Special Weighted Spaces
Authors: Duduchava R. , Speck F.-O. 
Published: May 2019

Abstract
We prove the boundedness of the Cauchy singular integral operator in special weighted Sobolev and Hölder-Zygmund spaces for large values of the smoothness parameter, which is an integer m ≥ 0, when the underlying contour is piecewise-smooth with angular points and even with cusps. We obtain Fredholm criteria and an index formula for singular integral equations with piecewise-continuous coefficients and complex conjugation in the spaces and provided that the underlying contour has only angular points but no cusps. The Fredholm property and the index turn out to be independent of the smoothness parameter m.
Second Order Boundary Value Problems with Nonlinear Two-Point Boundary Conditions
Authors: Kelevedjiev P. , Popivanov N. 
Published: May 2019

Abstract
The existence results obtained for the Dirichlet and mixed BVPs for the equation x ″ = f (t, x, x′) are extended to BVPs with full nonlinear conditions. The proofs are based on the theorem of Granas, Guenther and Lee, while barrier strips are used to obtain a priori bounds for solutions.
Mechanistic role of plant-based bitter principles and bitterness prediction for natural product studies II: prediction tools and case studies
Authors: Ntie-Kang Fidele 
Published: May 2019

Abstract
The first part of this chapter provides an overview of computer-based tools (algorithms, web servers, and software) for the prediction of bitterness in compounds. These tools all implement machine learning (ML) methods and are all freely accessible. For each tool, a brief description of the implemented method is provided, along with the training sets and the benchmarking results. In the second part, an attempt has been made to explain at the mechanistic level why some medicinal plants are bitter and how plants use bitter natural compounds, obtained through the biosynthetic process as important ingredients for adapting to the environment. A further exploration is made on the role of bitter natural products in the defense mechanism of plants against insect pest, herbivores, and other invaders. Case studies have focused on alkaloids, terpenoids, cyanogenic glucosides and phenolic derivatives.
Wie beeinflussen Kinder das Eingehen neuer Partnerschaften? Ein Vergleich zwischen Alleinerziehenden und Kinderlosen
Authors: Rapp Ingmar , Sari Elif 
Published: May 2019

Zusammenfassung
Der Beitrag untersucht, wie sich das Zusammenleben mit Kindern aus früheren Beziehungen auf die Wahrscheinlichkeit einer Wiederverpartnerung und auf den Zusammenzug mit einer neuen Partnerin bzw. mit einem neuen Partner auswirken. Datengrundlage ist das Sozio-oekonomische Panel (SOEP) mit den Wellen von 1992 bis 2014. Die Ergebnisse zeigen, dass das Zusammenleben mit Kindern den Beginn einer neuen Partnerschaft sowohl für Frauen als auch für Männer unwahrscheinlicher macht. Weitere Ergebnisse legen nahe, dass dies nicht in erster Linie auf schlechtere Partnermarktgelegenheiten von Eltern zurückzuführen ist, sondern darauf, dass Mütter und Väter auf dem Partnermarkt als weniger attraktiv wahrgenommen werden als Kinderlose. Wenn jedoch eine neue Partnerschaft eingegangen wurde, wird der Zusammenzug mit dem neuen Partner bzw. mit der neuen Partnerin durch Kinder nicht verzögert.
Serum retinol-binding protein 4 levels in polycystic ovary syndrome
Authors: Lingaiah Shilpa , Morin-Papunen Laure , Piltonen Terhi , Sundström-Poromaa Inger , Stener-Victorin Elisabet , Tapanainen Juha S 
Published: May 2019

Objective
Serum levels of retinol-binding protein 4 (RBP4), an adipokine thought to affect systemic insulin sensitivity, were compared between women with polycystic ovary syndrome (PCOS) and non-PCOS controls to evaluate the association of RBP4 with clinical, hormonal and metabolic parameters of PCOS.

Subjects and methods
Serum RBP4 levels were analysed in 278 women with PCOS (age range 18–57 years) and 191 non-PCOS controls (age 20–53 years) by enzyme-linked immunosorbent assay.

Results
Serum levels of RBP4 were increased in women with PCOS compared with control women in the whole population (45.1 ± 24.0 (s.d.) vs 33.5 ± 18.3 mg/L, P < 0.001). Age-stratified analysis showed that serum RBP4 levels were increased in women with PCOS aged ≤30 years compared with controls (47.7 ± 23.5 vs 27.1 ± 10.4 mg/L, P < 0.001), whereas no significant differences were seen in the other age groups. No significant correlations of RBP4 were seen with either steroids or indices of insulin resistance.

Conclusions
Although serum RBP4 levels were increased in younger women with PCOS compared with age-matched non-PCOS controls, RBP4 does not seem to be a good marker of insulin resistance or other metabolic derangements in women with PCOS.
Exophthalmos and multinodular goitre, an unusual combination
Authors: Okolie Kingsley , Chen Daniel , Ghabrial Raf , Schmidli Robert 
Published: May 2019

Summary
Multinodular goitre is not associated with eye disease, unless in a rare case of Marine–Lenhart syndrome where it coexists with Grave’s disease. Therefore, other causes of exophthalmos need to be ruled out when the eye disease is seen in a patient with multinodular goitre. Confusion can arise in patients with features suggestive of Graves’ ophthalmopathy in the absence of thyroid-stimulating hormone receptor autoantibodies and no evidence of other causes of exophthalmos. We present a case of multinodular goitre in a patient with exophthalmos which flared up after iodine contrast-based study. A 61-year-old Australian presented with a pre-syncopal attack and was diagnosed with toxic multinodular goitre. At the same time of investigations, to diagnose the possible cause of the pre-syncopal attack, computerised tomographic (CT) coronary artery angiogram was requested by a cardiologist. A few days after the iodine contrast-based imaging test was performed, he developed severe eye symptoms, with signs suggestive of Graves’ orbitopathy. MRI of the orbit revealed features of the disease. Although he had pre-existing eye symptoms, they were not classical of thyroid eye disease. He eventually had orbital decompressive surgery. This case poses a diagnostic dilemma of a possible Graves’ orbitopathy in a patient with multinodular goitre.

Learning points:

Graves’ orbitopathy can occur in a patient with normal autothyroid antibodies. The absence of the thyroid antibodies does not rule out the disease in all cases.

Graves’ orbitopathy can coexist with multinodular goitre.

Iodine-based compounds, in any form, can trigger severe symptoms, on the background of Graves’ eye disease.
Spectrum of imaging findings in trans-gastric migration of accidently ingested metallic foreign bodies
Authors: Parry Arshed Hussain , Dar Mohammad Saleem , Wani Abdul Haseeb , Gojwari Tariq Ahmad , Robbani Irfan 
Published: May 2019

Background: An accidently ingested foreign body may get lodged within the lumen of gastrointestinal tract, pass uneventfully with feces or may migrate extraluminally into the surrounding tissues in which case it may lead to suppurative or vascular complications. The aim of the endeavor was to study the spectrum of imaging findings in patients with accidental ingestion of foreign bodies with trans-gastric migration of metallic foreign bodies.Methods: Total 33 patients with history of accidental ingestion of foreign bodies were subjected to preliminary radiograph of neck, chest and abdomen followed by upper gastrointestinal endoscopy. Failure to retrieve/ localize foreign body endoscopically from upper gastrointestinal tract with check radiograph reiterating the presence of foreign body in upper abdomen were subjected to computed tomography of abdomen.Results: A total of 33 patients comprising of 27 females and 6 males with mean age of 23.76 years with history of foreign body ingestion were studied. Ingested foreign bodies were lodged in pharynx (n=7), esophagus (n=3), stomach (n=13) or duodenum (n=3). In 7 patients in whom endoscopy failed to locate and/or retrieve foreign body, computed tomography confirmed the presence of trans-gastrically migrated foreign body in the surrounding structures. The location of migrated foreign bodies was in lesser sac (n = 2), greater omentum (n = 3), lesser omentum (n = 1) and transmural (n = 1). Two patients had evidence of collection formation around the migrated foreign bodies.Conclusions: Sharp or pointed metallic foreign bodies may migrate trans-luminally with various implications. Though radiography is the preliminary workhorse for the confirmation of ingested foreign bodies, computed tomography owing to its volumetric data acquisition helps in exact localization of migrated foreign bodies and should precede any therapeutic intervention for retrieval of migrated foreign bodies.
Prevención y atención del abandono y la exclusión escolar. Yo me apunto
Authors: Franceschi-Sojo Katia 
Published: May 2019

En Costa Rica, el abandono y la exclusión escolar en los centros de educación secundaria se pueden prevenir y atender con la aplicación de buenas prácticas educativas, pensadas y ejecutadas por los docentes y administrativos para la permanencia, la reintegración y el éxito escolar. Así, se desarrollan diversas actividades extracurriculares, que fomentan valores y actitudes que hacen crecer al alumno personal y académicamente, teniendo una mejor interacción con sus pares y con su entorno escolar.
La Agenda de Cooperación Universidades Gobierno une a las Universidades Públicas con el Ministerio de Educación Pública, para promover estas buenas prácticas en todo el territorio nacional.
Designing Robust, Cost‐Effective Field Measurement Sets using Universal Multiple Linear Regression
Authors: Clutter Melissa , Ferré Ty P.A. 
Published: May 2019

Core Ideas
Computationally inexpensive, objective method for recommending sensor type/depth.
Comprehensive information about potential measurement networks.
Network design for user‐defined uncertainties before sensor installation.
Limited monitoring budgets restrict the type and number of sensors that can be installed for field‐based studies. Therefore, sensor selection should be both informative and efficient. We propose a method to optimize sensor network design, prior to data collection, by combining multiple linear regression (MLR) and robust decision‐making (RDM). Multiple linear regression inherently considers the strength of the relationship between observations and predictions of interest and correlations among proposed observations. In our approach, we use universal Multiple Linear Regression (uMLR) to quantify the explanatory power of all possible combinations of model‐simulated candidate observations (of different sensor types and locations). A model‐ensemble approach allows for network design in the context of user‐defined uncertainties, including expected measurement error and parameter and structural uncertainty. Application of uMLR with RDM produces a comprehensive assessment of the likely value of many observation sets. These results can be used to design sensor networks to address specific experimental objectives and to balance the cost and effort of installing sensors to the expected value of the data for model testing and decision support.
Antioxidant Effect of Flavonoids Present in Euterpe oleracea Martius and Neurodegenerative Diseases: A Literature Review
Authors: de Oliveira Nayana Keyla Seabra , Almeida Marcos Rafael Silva , Pontes Franco Márcio Maciel , Barcelos Mariana Pegrucci , de Paula da Silva Carlos Henrique Tomich , Rosa Joaquín María Campos , Cruz Rodrigo Alves Soares , da Silva Hage-Melim Lorane Izabel 
Published: May 2019

Introduction:Neurodegenerative diseases (NDDs) are progressive, directly affecting the central nervous system (CNS), the most common and recurrent are Alzheimer's disease (AD) and Parkinson's disease (PD). One factor frequently mentioned in the etiology of NDDs is the generation of free radicals and oxidative stress, producing cellular damages. Studies have shown that the consumption of foods rich in polyphenols, especially those of the flavonoid class, has been related to the low risk in the development of several diseases. Due to the antioxidant properties present in the food, a fruit that has been gaining prominence among these foods is the Euterpe oleracea Mart. (açaí), because it presents in its composition significant amounts of a subclass of the flavonoids, the anthocyanins.Methods:In the case review, the authors receive a basic background on the most common NDDs, oxidative stress and antioxidants. In addition, revisiting the various studies related to NDDs, including flavonoids and consumption of açaí.Results:Detailed analysis of the recently reported case studies reveal that dietary consumption of flavonoid-rich foods, such as açaí fruits, suggests the efficacy to attenuate neurodegeneration and prevent or reverse the age-dependent deterioration of cognitive function.Conclusion:This systematic review points out that flavonoids presenting in açaí have the potential for the treatment of diseases such as PD and AD and are candidates for drugs in future clinical research. However, there is a need for in vitro and in vivo studies with polyphenol that prove and ratify the therapeutic potential of this fruit for several NDDs.
Graph Theory Teaches Us Something About Grammaticality
Authors: Arikawa Koji 
Published: May 2019

Abstract
Graph theory, which quantitatively measures the precise structure and complexity of any network, uncovers an optimal force balance in sentential graphs generated by the computational procedures of human natural language (CHL). It provides an alternative way to evaluate grammaticality by calculating ‘feature potential’ of nodes and ‘feature current’ along edges. An optimal force balance becomes visible by expressing ‘feature current’ through different point sizes of lines. Graph theory provides insights into syntax and contradicts Chomsky’s current proposal to discard tree notations. We propose an error minimization hypothesis for CHL: a good sentential network possesses an error-free self-organized force balance. CHL minimizes errors by (a) converting bottom-up flow (structure building) to top-down flow (parsing), (b) removing head projection edges, (c) preserving edges related to feature checking, (d) deleting DPmovement trajectories headed by an intermediate copy, (e) ensuring that covert wh-movement trajectories have infinitesimally small currents and conserving flow directions, and (f) robustly remedying a gap in wh-loop by using infinitesimally inexpensive wh-internally-merged (wh- IM) edge with the original flow direction. The CHL compels the sensorimotor (SM) interface to ground nodes so that Kirchhoff’s current law (a fundamental balance law) is satisfied. Internal merges are built-in grounding operations at the CHL–SM interface that generate loops and optimal force balance in sentential networks.
Model galat spasial untuk jumlah produksi padi tahun 2014 di jawa barat
Authors: Lumbantoruan Alicia Anggelia , Setiawan Adi , Susanto Bambang 
Published: May 2019

Indonesia merupakan salah satu negara penghasil padi sehingga luas lahan yang ditanami padi merupakan faktor utama yang mempengaruhi produksi padi. Pada studi ini, diusulkan Model Galat Spasial (Spatial Error Model) dalam penerapan untuk jumlah produksi padi dan jumlah produksi padi tetangga. Model ini mengasumsikan bahwa galat (error) dalam model memiliki hubungan spasial antara satu wilayah dan wilayah lain. Data yang digunakan adalah luas lahan produksi padi dan jumlah produksi padi di setiap kabupaten di Jawa Barat pada tahun 2014. Matriks pembobot juga digunakan dalam menggambarkan kedekatan antar wilayah. Hasil yang diperoleh dari model spasial diketahui bahwa konstanta dan juga jumlah total produksi wilayah tetangga tidak berpengaruh terhadap produksi padi suatu wilayah. Regresi sederhana tanpa konstanta adalah model terbaik untuk memodelkan jumlah produksi tanaman padi yang hanya bergantung pada luas lahan produksi sehingga model galat spasial tidak dapat digunakan dalam kasus ini.
Perencanaan Produksi pada Produk Hollow dengan Ukuran 15 mm X 35 mm X 0.30 mm
Authors: Rosyidi Moh Ririn , Zabadi Fitri Fairus 
Published: May 2019

PT Mulcindo is a manufacturing and service industry company works in the production of processed iron. This company produces corrugated steel sheet, iron canal, ceiling hanging guard rail, and partition frame. However, the demand for this company was fluctuating. Due to this fluctuation, PT Mulcindo Steel Industry has some problems such as product shortages or on the other hand product overload (over stock). This company is trying to find better production activities planning to fulfill market demand by using the right production planning. The results of the aggregate planning method in planning hollow production with a size of 15 mm x 35 mm x 0.30 mm in PT Mulcindo Steel Industry using the heuristic method, labor control with total aggregate planning costs of Rp. 674,937,732.2 / year, controlling sub-contracts with total aggregate planning costs of Rp. 822.136,585,3 / year, mix with overtime with total aggregate planning costs of Rp. 208,791,410.5 / year, Use of spreadsheets using regular production with trial and error techniques with total aggregate planning costs of Rp. 408,543,000 / year, the aggregate planning method in production planning obtained the minimum cost of Rp. 208,791,410.5 / year that is by using the heuristic method with mixed method completion techniques with over time. Keywords : Forecasting, Time Series, Aggregate Planning.
Efektivitas Penggunaan Instagram melalui Dua Tahap Analisis pada Zanana dan Oifyoo
Authors: Maharani Anastasya , Ardiansah Irfan , Pujianto Totok 
Published: May 2019

The using of social media for marketing in products and services industry is currently trending, both in small and big enterprises. Zanana and Oifyoo are among the SMEs that already used Instagram to market their products. The purpose of this research is to find the effectiveness of using social media (Instagram) as online marketing on Zanana and Oifyoo. Zanana has a specified marketing team to manage their Instagram account> Meanwhile, Oifyoo's Instagram account is managed by the owner directly. The analysis of Instagram using effectiveness is much needed for increasing marketing, sales, or branding purposes. This research is done with a few steps including data reduction, data serving, conclusion, and verification. There are two data used in this research, primary and secondary data. The primary data is accumulated using in-depth interviews and the secondary data is retrieved on both SMEs Instagram accounts. This research used media and network analyses to analyze the data. The research shows that Zanana is more excelled at the effectiveness of using Instagram in both media and network analyses than Oifyoo. Keywords: effectiveness, Instagram, media analysis, network analysis
ANALISIS FAKTOR PRIORITAS MAHASISWA DALAM MEMILIH JURUSAN DENGAN FUZZY ANALITIC HIERARCHY PROCESS
Authors: Samosir Benny Sofyan , Novitasari Wiwik , Pasaribu Safran Efendi 
Published: May 2019

University is the institution engaged in public service namely education services needs to identify the student candidates on education product, develops educational products and implements marketing activities to attract the attention of the student candidates. The purpose of this study is to determine priority consideration for students in choosing a study program at the College. The method used in this study is Fuzzy Analysis Hierarchy Process (FAHP), with the results of the study, the order's rank criteria factor (Study Program profile, Infrastructure, The Activity of study Program and Rules of Conduct), the rank order of the sub factor infrastructure criteria (Quality of College Building, Library, Sport Facilities, Laboratory), the order of sub-criteria rank factor of study Program profile ( lay out and Accreditation of study program, the length of the Study, Graduates Lecturer), a sequence of sub criteria ranking factors study program of activities (Seminar, Community Service, fieldtrip, Research), and the sequence of sub-criteria rank factor of the order of (Lectures, students number, Clothing, Leaves).
PROFIL KEMAMPUAN BERPIKIR KRITIS MATEMATIS SISWA DALAM PEMECAHAN MASALAH SOAL SPLDV DITINJAU DARI KEMAMPUAN MATEMATIKA
Authors: Asih Fitri Puji 
Published: May 2019

The aim of this research is to describe profile crithical thinking ability of the students in solving problem in Linear Equation System of Two Variables based on the criteria of critical thinking and problem solving ability of the students. This is qualitative research with the subject is the students in the class VIIIA of year 2018/2019 of SMP Negeri 6 Semarang. The data collection used is test and interview. Based on the results of this study it can be seen that the profile of critical thinking skills with the first subject of high math skills (SR) can do all category . Where the subject is moderate mathematics (SS) and the subject is low mathematics (SR) on indicators of critical thinking in problem solving that have not been done by student inference and strategy on subject SS on problems 2 and 3. While subject SR on problems 1,2 and 3.
Mecanismos de patogénesis del melanoma maligno
Authors: Restrepo Catalina , Velásquez Margarita María 
Published: May 2019

El melanoma es una de las neoplasias malignas de la piel más agresivas y peligrosas. Tiene múltiples factores de riesgo, siendo uno de los más importantes la exposición crónica e intermitente al sol. Además, tiene un componente genético que se asocia a los casos familiares, debido principalmente a las mutaciones del gen CDKN2A; sin embargo, la mayoría de los melanomas son esporádicos. En su patogenia se describen mutaciones en la línea germinal y mutaciones somáticas, las cuales modifican la regulación del ciclo celular y permiten un crecimiento no regulado. El sistema inmunitario juega un papel muy importante en la patogénesis porque, a pesar de que este tumor tiene antígenos que son claramente reconocidos, permitiendo que el sistema inmunitario monte una respuesta, las células del melanoma logran evadir la inmunidad innata y la adaptativa, para así invadir y generar metástasis.