bluuebunny/crossref_metadata_2025_split huggingface dataset:
Two-sided Estimates of Thermal Conductivity Coefficient of a Porous Body Skeleton
Authors: Zarubin V. S. , Novozhilova O. V. , Sergeeva E. S. 
Published: August 2018

Porous composite materials are widely used in engineering as structural and heat-insulating materials. The presence of pores in such materials is due to both the technology of their manufacture and the operating conditions.One of the most important factors in the process of designing products from a porous composite is the complex of thermophysical characteristics of the material. This characteristic determines the application area of the material.Among the thermophysical properties the leading role is played by the coefficient of thermal conductivity. This coefficient for some porous materials can be determined experimentally, however, in order to reduce the time and resources needed, a theoretical study of this characteristic is more relevant.Theoretical investigation of the thermal conductivity coefficient of a porous composite allows us to predict its possible values depending on the composition of the material and its porosity. Such information about the composite is necessary at various stages of working with the material from its preparation to the construction of a structure from it.There are many works devoted to approaches to the theoretical evaluation of the coefficient of thermal conductivity of a porous material. However, due to a significant spread of its values, an actual task is to construct guaranteed two-sided estimates of the possible values of this material characteristic.As is well known, there are some difficulties in constructing lower estimates of the properties of a porous material. In this paper, to overcome this difficulty, a modification of the structural model of the porous body was used in conjunction with the dual formulation of the stationary heat conduction problem in an inhomogeneous solid.The modification of the structural model of a porous body in this paper is as follows: a hollow spherical particle is replaced by a solid sphere with an equal external radius. The solid sphere in turn is represented by a composite ball consisting of an inner ball of some conventional material and an outer spherical layer of the carcass material of the porous body. The equivalent thermal conductivity of the material of the inner ball is to be determined.The modification of the structural model of the porous body proposed in the work allowed to obtain two-sided estimates of the possible value of this coefficient. Also, the obtained estimates were compared with unimprovable upper bound for this characteristic.The obtained results will allow us to predict two-sided estimates of the thermal conductivity coefficient of perspective heat-insulating and structural porous materials.
Madelung’s disease: case series and literature review
Authors: Pedan H , Behanova E , Calkovsky V , Hajtman A 
Published: August 2018

Abstract
Madelung’s disease also called benign symmetric lipomatosis is a rare disorder of unknown etiology. The disease affects almost exclusively middle-aged men with a history of multi-year alcohol abuse. The major symptom is presence of non-encapsulated benign fat masses, especially in the area of the head and neck. Limited head and neck movement, dysphagia, and dyspnea may appear as well.
The diagnosis is clinical and is supported by imaging methods, often elevated hepatic enzymes in blood serum, and histological examination with finding of mature adipose tissue without signs of proliferation. Therapeutic methods involve liposuction or excision which is a method of choice nowadays.
In this article the authors review current knowledge, research state, and present five cases of the Madelung’s disease occurring within the last 10 years at the Clinic of Otorhinolaryngology and Head and Neck Surgery in Martin, Slovakia.
السياحة الشرعية في رياو وفرص تعليم اللغة العربية فيها
Authors: Muhammad Saproni 
Published: August 2018

إن اللغة العربية ليست لغة دينية فحسب بل هي لغة دولية تستخدمها الأمم المتحدة كلغة رسمية. ولذلك، فإن أهمية تعلم اللغة العربية ليس فقط أغراض دينية، ولكن تتمثل في أغراض أخرى مثل مثل السياحة والاقتصاد والحج وغيرها. لقد عزمت وزارة السياحة والثقافة بمكتب رياو إلى أن تنال السياحة اهتماما خاصا على أساس الثقافة الملايو، وفي الوقت نفسه، سيتم تنفيذ رسالة Sapta Pesona والسياحة الشريعة. فهذا البحث يهدف إلى تعريف ما يسمى بالسياحة الشريعة، وما هي الفرص التجارية التي تقدمها السياحة الشريعة في رياو، وما فعلته الحكومة في رياو لجذب السياح، وخاصة السياح العرب، وكيفية تدريس اللغة العربية في رياو، وتكييفها إلى فرص السياحة الشريعة في رياو. ويفيد هذا البحث ما يلي: أ) المساهمة الفكرية في تطوير السياحة الشريعة في رياو. ب) المساهمة في توفير المعلومات للجمهور الذي يحتوي على تدريس اللغة العربية وفرص العمل في مجال السياحة الشريعة في رياو. ج) المساهمة الفكرية للناشطين التربويين في مجال تدريس اللغة العربية في تصميم المناهج الدراسية التي تهدف إلى إعداد الخريجين ذوي الكفاءة في مجال السياحة الشرعية.
Manajemen Kualitas Data dan Informasi Berbantuan Sistem Informasi untuk Meningkatkan Kinerja Operasional Pabrik PT. Sari Aditya Loka 2
Authors: Karami Ahmad Fahmi 
Published: August 2018

Performa sebuah organisasi bergantung kepada keputusan strategis yang diambil oleh pemangku kepentingan pada organisasi tersebut. Keputusan strategis dari pemangku kepentingan bergantung terhadap kualitas data dan informasi yang ada pada organisasi. Manajemen kualitas data dan informasi berbantuan sistem informasi menjadi salah satu perkembangan teknologi pada sektor industri yang dapat membawa dampak positif terkait performa or-ganisasi. Kualitas data dan informasi yang baik adalah data dan informasi yang memiliki kriteria yang sesuai dengan keinginan penggunanya, dimana kriteria pengguna tidak bersifat universal antar organisasi. Penelitian ini dilakukan pada pabrik PT. SAL 2 yang menggunakan data dan informasi untuk pengambilan keputusan sebagai upaya menghilangkan breakdown pabrik. Hasil penelitian menunjukkan adanya penurunan breakdown antara sebelum dan sesudah implementasi.
A VARIANT OF RSA CRYPTOSYSTEM ON THE ENDOMORPHISM RING End(Z_n×Z_(n^k ))
Authors: Long Trần Đình 
Published: August 2018

<p><em>Based on the arithmetic of the endomorphisms ring </em><em>End(</em> <em>, the paper constructs an exponent type encryption and decryption cryptosystem. Althought involving m</em><em>ore</em><em> operations in encryption and decryption p</em><em>hases </em><em> than that of original RSA one, the cryptosystem has some advantages in avoiding lattice and chosen plaintext attack</em><em>s</em><em> compared to original RSA cryptosystem.</em></p>
Proactividad: una respuesta a la pregunta ¿Cómo superar la Ley de Parkinson en las actividades laborales?
Authors: García Caicedo Jennifer 
Published: August 2018

Éste documento presenta el efecto que tiene la ley de Parkinson en la productividad, ley que denota, la expansión de la realización de una tarea hasta la ocupación de todo el tiempo disponible. Inicialmente se muestra una caracterización en relación con el efecto en el desempeño laboral de un individuo y seguidamente se vincula a los fundamentos de la proactividad y la gestión del tiempo como herramientas de ayuda para la mitigación de los efectos de dicha ley y la consecución de los
objetivos de la organización, entre ellos la productividad. De este análisis se concluye que el tiempo destinado para la elaboración de una tarea no garantiza que el resultado obtenido sea el esperado, más la gestión del tiempo, en conjunto con la proactividad de los individuos, si garantiza el posible aumento de la productividad.
A TENTATIVE SEARCH FOR CONFLATION IN THE EPISTLE TO GALATIANS (2:5; 4:14)
Authors: Dyatlik T. 
Published: August 2018

The article presents a tentative search for conflation in the Epistle to Galatians (2:5; 4:14). The purpose of this article is paving the methodological way for further research into conflation by the tentative search for candidates for conflation in the Epistle to Galatians. The variant «οις ουδε» is not a conflation of «οις» and «ουδε», since it is the primary reading from which the two other variants originated. Nevertheless, taking into consideration probable scribal and patristic grammatical impovements or doctrinal alterations, the history of the transmission seems to exhibit the transmissional phenomenon of difflation. The variant «μου τον» is not a conflation of «μου» and «τον». In the tentative conclusion there have been indicated several factors to be considered on which the variant «υμων τον» can be supposed to be a conflation of the primary reading «υμων» and the variant «τον». Key words: conflation, Epistle to Galatians, New Testament, Corpus Paulinum manuscript.
Pengaruh Pengawasan Mutu Terhadap Pengambilan Keputusan Konsumen Menggunakan Layanan Jasa Servis Komputer Pada Cv. Eltech Gresik
Authors: Muhajir Ali 
Published: August 2018

Penelitian ini mengambil judul “Pengaruh Pengawasan Mutu Terhadap Pengambilan Keputusan Konsumen menggunakan Layanan Jasa Servis Komputer Pada CV. Eltech Gresik” Penelitian ini bertujuan untuk mengetahui pelaksanaan pengawasan mutu dan juga untuk mengetahui pengaruh pengawasan mutu terhadap pengambilan keputusan konsumen atas layanan jasa pada CV. Eltech Gresik. Tahapan pengujian melalui persiapan, pengawasan selama proses dan tahap pemeriksaan akhir. Pengujian juga dilakukan melalui metode kuesioner terhadap 75 orang responden atau pengguna jasa servis komputer CV. Eltech Gresik, yang diperoleh dengan menggunakan teknik Simple Random Sampling. Analisis yang dilakukan adalah analisis regresi linier berganda dengan bantuan perangkat komputer program SPSS. Dari hasil analisis disimpulkan bahwa, pertama, CV. Eltech telah melakukan tahapan demi tahapan servis sesuai dengan keinginan konsumen, kedua, hasil perhitungan koefisien korelasi (R) sebesar 0,725. Hal ini menunjukan bahwavariabel pengawasan mutu yang terdiri dari produk (X1), Harga (X2), Tempat (X3), dan Promosi (X4) memiliki hubungan kuat terhadap variabel keputusan konsumen (Y). Sedangkan nilai koefisien determinasi (R2) sebesar 0,525 menunjukan bahwasecara simultan variabel Produk (X1), Harga(X2), Tempat(X3), dan Promosi(X4) memberi konstribusi terhadap keputusan konsumen. Kata Kunci : Pengawasan Mutu, Keputusan konsumen, pelayanan.
Upper Pliocene to Lower Pleistocene Plant Microfossils from The Basal Part of the Lukundol Formation (Southern Kathmandu Valley) and Their Climatic Implications
Authors: Maharjan Maria , Humagain Sima , Paudayal Khum N. 
Published: August 2018

The Late Pliocene to Lower Pleistocene fluvio-lacustrine sediments of the Lukundol Formation distributed in the southern part of the Kathmandu Basin, consists of various fossils of flora and fauna which are very useful proxies to reconstruct the past climate. Twenty seven samples were collected for palynological study from different beds of the Lukundol Formation exposed in the Pharsidol area due to recent road cut. The exposure is about 100 m thick. The study revealed the dominance of gymnosperms over angiosperm plants. On the basis of the pollen assemblage, the Lukundol Formation could be divided into three different pollen zones namely PD-I, PD-II and PD-III. The variation in the climate observed in these three zones indicates that the climate of the Kathmandu valley during the deposition of the Lukundol Formation was not uniform. The climate had been warmer in the lower and upper zones while colder in the middle zone than today. Bulletin of Department of Geology, vol. 20-21, 2018, pp: 71-81
CHLOROPHYLL CONTENT AND ITS RELATION TO PRODUCTIVITY OF CROPS AND WEEDS IN A TROPICAL AGROECOSYSTEM AT GUJAR LAKE MARGIN, INDIA
Authors: Singh Mayank , Singh Mahendra Pratap 
Published: August 2018

The paper deals with evaluation of magnitude of changes in chlorophyll concentration, chlorophyll density and relationship of chlorophyll density with net primary productivity of mixed winter crop (wheat and mustard) community at Gujar lake margin in the district Jaunpur (U.P.). The chlorophyll concentration of each component of crops, dominant weed Cynodon dactylon (Linn.) Pers. and ‘other weeds’ have shown increasing trend in the beginning and reached their peak values at the same time (75-90 days). Thereafter, chlorophyll concentration have declined sharply. Maximum chlorophyll density value of total crop (wheat and mustard) was 2015.77 mg m-2 and for total weeds was 810.08 mg m-2, both at the age of 90 days of crop. There was a significant positive correlation between productivity and chlorophyll density of total crop (r = 0.903, p = 0.002) and total weeds (r = 0.580, p = 0.131).ECOPRINT 23: 39-44, 2016
Rancang Bangun Aplikasi Chatting Berbasis Web Menggunakan Docker
Authors: Adinta Firlya 
Published: August 2018

Perkembangan teknologi informasi diiringi oleh perkembangan perangkat – perangkat pendukungnya memudahkan pengguna teknologi untuk membantu pekerjaannya sehari-hari dan dapat saling berkomunikasi satu sama lain. Aplikasi chatting berbasis web merupakan salah satu alternatif yang dapat digunakan jika pengguna tidak ingin melakukan instalasi terhadap aplikasi chatting di ponselnya atau didesktop. Dalam pembuatan aplikasi chatting ini menggunakan teknologi virtual mesin yang digunakan untuk menjalankan suatu aplikasi. Teknik kontainerisasi (virtualisasi berbasis container) hadir sebagai solusi dari peningkatan jumlah aplikasi web yang harus dihosting harus diikuti dengan peningkatan kualitas ataupun kuantitas sumber daya. Docker adalah salah satu software yang mengadopsi teknik kontainerisasi dan semakin banyak diterapkan di dalam lingkungan pengembangan aplikasi. Penelitian ini mencoba untuk melakukan rancang bangun aplikasai chatting berbasis web menggunakan teknologi docker dalam pembuatan apliakasi chatting.
Authors: Irawan Agus , Risa Mey , Noor Tajuddin 
Published: August 2018

Smartphone merupakan alat komunikasi yang sering digunakan sebagai sarana mengakses informasi. Sekarang ini banyak smartphone yang bisa digunakan untuk merekam suara, mengambil gambar dan membuat video dengan kualitas yang baik. Pada Smartphone ini terdapat berbagai macam sistem operasi diantaranya Symbian, Blackberry, iOS dan Android.
Android adalah sistem operasi berbasis Linux perangkat selular yang open source. Android juga memiliki
banyak versi seperti Gingerbread, ICS, Jelly Bean, KitKat, Lollipop, Marshmallow, Nougat dan yang terbaru Oreo. Tidak semua samrtphone bekerja secara maksimal oleh sebab itu dibuatlah costum rom untuk memaksimalkan kemampuan smartphone tersebut.
Remastering adalah suatu teknik mengubah, menambah, menghapus paket aplikasi yang berada pada suatu
sistem operasi. Remastering bertujuan untuk membuat baru android yang telah dioptimalkan. Sistem operasi android untuk multimedia dapat menyediakan fungsionalitas untuk pengguna terutama pada Lenovo A6000 PLUS dalam meningkatkan performa.
Model of Education Program Value Increase
Authors: Garmonova A. V. , Ryakhina N. A. , Sokolova E. E. 
Published: August 2018

The article describes the experience of the private further professional education establishment in integration with private medical organizations as a hi-tech clinic base. The purpose of the experience was to work out an education program of professional retraining which enables medical organization to extend the range of its services. The demand for such programs investment stems from the gap between the professional level of medical workers training at universities and the needs of hi-tech segment of cosmetology service which requires highly qualified specialists.The gap between the increasingly changing market demands and the existing higher education offer may be bridged through involvement of practicing professionals in education process.The authors consider the best Russian and foreign practices of interaction between private medical establishments and private education establishments aimed at creation Centers of Excellence on the example of Neo Clinic Tuymen. The presented model shows the competitive advantages of a professional retraining education program characterized by a big concentration of resources per student and a high value of education service. The article may be useful for the university management in Russia in developing and updating strategies and programs of practice-oriented education that will meet the requirements of regional labour markets, concrete organizations and employers and contribute to graduates’ adaptation to actual production process.
Patterns of Regional Cerebral Blood Flow as a Function of Age Throughout the Lifespan
Authors: Amen Daniel G. , Egan Sachit , Meysami Somayeh , Raji Cyrus A. , George Noble 
Published: August 2018

Background: Understanding the influence of aging on the brain remains a challenge in determining its role as a risk factor for Alzheimer’s disease. Objective: To identify patterns of aging in a large neuroimaging cohort. Methods: A large psychiatric cohort of 31,227 individuals received brain SPECT at rest and during a concentration task for a total of 62,454 scans. ANOVA was done to identify the mean age trends over the course of the age range in this group, 0–105 years. A regression model in which brain SPECT regions of interest was used to predict chronological age (CA) was then utilized to derive brain estimated age (BEA). The difference between CA and BEA was calculated to determine increased brain aging in common disorders in our sample such as depression, dementia, substance use, and anxiety. Results: Throughout the lifespan, variations in perfusion were observed in childhood, adolescence, and late life. Increased brain aging was seen in alcohol use, cannabis use, anxiety, bipolar, schizophrenia, attention-deficit/hyperactivity disorder, and in men. Conclusion: Brain SPECT can predict chronological age and this feature varies as a function of common psychiatric disorders.
Mastication and Oral Motor Function in McArdle Disease: Patient Reported Complaints
Authors: Kouwenberg C.V. , Voermans N.C. , Quinlivan R. , van den Engel-Hoek L. 
Published: August 2018

Background: Exertional myalgia and cramps of the limb and trunk muscles are typical in McArdle disease, but mastication and oral motor limitations have not been systematically investigated before. Objective: Determine the reported prevalence and characteristics of limitations on oral motor activities, mastication, swallowing, and other oral motor activities in patients with McArdle disease. Methods: An observational study was carried out in 28 patients using a standardised questionnaire on mastication and oral motor function. Results: 57% of the participants reported difficulties with mastication. Muscle cramps during mastication occurred in 57% of the patients. A feeling that food remains in the throat occurred in 32%. Adaptations during mastication were needed in 42% of the patients. Mastication difficulties, muscle cramps during mastication and mastication adjustments were inversely correlated with age (r2 = – 0.445, p < 0.05; r2 = – 0.509, p < 0.01; r2 = – 0.456, p < 0.05). Feeling of food remaining in throat, cramps during mastication and during other oral motor muscle activities, were correlated with disease severity (r2 = 0.476, p < 0.01; r2 = 0.463, p < 0.01; r2 = 0.461, p < 0.01; r2 = 0.432, p < 0.05). Conclusions: In short, reported mastication difficulties are prevalent in people with McArdle disease, most frequently in younger people. Therefore, awareness of mastication and oral motor problems is required.
Effect of fluctuation of oxygenation and time spent in the target range on retinopathy of prematurity in extremely low birth weight infants
Authors: Das A. , Mhanna M. , Sears J. , Houdek J.W. , Kumar N. , Gunzler D. , Einstadter D. , Collin M. 
Published: August 2018

BACKGROUND: The association between saturation of peripheral oxygenation (SpO2) fluctuation and severity of retinopathy of prematurity (ROP) is well elucidated in extremely low birth weight (ELBW) infants. Time spent in the Target range of SpO2 is also associated with the severity of ROP. METHODS: In a prospective observational study, the SpO2 of all ELBW infants admitted to our unit were monitored for the first four weeks of life, and averaged every minute for analysis. The percent time spent at SpO2 <90%, 90–95%, and >95% and weekly SpO2 fluctuations [as SpO2 coefficient of variation (CoV)] were calculated. RESULTS: During the study period 21 infants had moderate to severe ROP and 35 infants served as controls. Infants with moderate to severe ROP were smaller and younger than their controls [676±124 grams vs. 796±148 grams ( p < 0.001); and 24.0±1.0 weeks vs. 25.0±1.7 weeks ( p < 0.001) respectively]. There were no significant differences in time spent in the 90–95% range between groups ( p = 0.66). However there was a significant increase in weekly SpO2 CoV in infants with moderate to severe ROP vs. controls ( p = 0.007). CONCLUSION: In ELBW infants, there was an association between SpO2 fluctuation during the first four weeks of life and severity of ROP, although, no association was established with time spent in the target range of SpO2.
Diamond-based superhard composites: new synthesis approaches and application prospects
Authors: Filonenko V P , Zibrov I P , Anokhin A S , Kukueva E V 
Published: August 2018

Abstract
We discuss experimental results on high-pressure and high-temperature (HPHT) synthesis of diamond-like cubic boron nitride (cBN) and diamond with a high concentration of point defects. The presence of active fluids allows obtaining cBN with a carbon content up to 10%. The concentration of boron in the diamond lattice is about 2%, and that of vacancies is two times higher. The concentration and positions of substitution atoms were determined by the Rietveld refinement method. Diamond micropowder reactive sintering with fluid phases was used to synthesize new superhard composites. The microstructure and grain boundaries were investigated by transmission and scanning electron microscopy. Tests of the wear resistance of the new diamond–cBN composites demonstrated that these materials offer good prospects for various applications.
On regularities in the spontaneous formation of structural hierarchies in chiral systems of nonliving and living matter
Authors: Tverdislov V A , Malyshko E V 
Published: August 2018

Abstract
We review a general regularity concerned with the spontaneous formation of alternating-sign L–D hierarchies of chiral structures that are initially nonequilibrium due to homochirality. Mechanical, hydrodynamic, macromolecular, and liquid-crystal systems, as well as proteins and nucleic acids, are considered. Biomacromolecule chirality is related to the presence of an asymmetric carbon atom and, further, to the formation of helical and superhelical intra- and supramolecular structures. Chirality is a physical vehicle that generates stratification and folding in biological macromolecular systems. The hierarchies of alternating-sign chiral structures underlie the formation of a periodic molecular-biological system of cells.