bluuebunny/crossref_metadata_2025 huggingface dataset:
Pricing of Longevity Derivatives and Cost of Capital
Authors: Zeddouk Fadoua , Devolder Pierre
Published: April 2019

Annuities providers become more and more exposed to longevity risk due to the increase in life expectancy. To hedge this risk, new longevity derivatives have been proposed (longevity bonds, q-forwards, S-swaps…). Although academic researchers, policy makers and practitioners have talked about it for years, longevity-linked securities are not widely traded in financial markets, due in particular to the pricing difficulty. In this paper, we compare different existing pricing methods and propose a Cost of Capital approach. Our method is designed to be more consistent with Solvency II requirement (longevity risk assessment is based on a one year time horizon). The price of longevity risk is determined for a S-forward and a S-swap but can be used to price other longevity-linked securities. We also compare this Cost of capital method with some classical pricing approaches. The Hull and White and CIR extended models are used to represent the evolution of mortality over time. We use data for Belgian population to derive prices for the proposed longevity linked securities based on the different methods.
Simulation of Radiation Damage for Silicon Drift Detector
Authors: Liu Yang , Zhu Tengfei , Yao Jianxi , Ouyang Xiaoping
Published: April 2019

Silicon drift detector with high sensitivity and energy resolution is an advanced detector which is suitable to be used in deep space detection. To study and reveal the radiation damage of the silicon drift detector (SDD) in a deep-space environment, which will degrade the detector performance, in this paper, the SDD radiation damage effects and mechanics, including displacement damage and ionization damage, for irradiations of different energy of neutrons and gammas are investigated using Geant4 simulation. The results indicate the recoil atoms distribution generated by neutrons in SDD is uniform, and recoil atoms’ energy is mainly in the low energy region. For secondary particles produced by neutron irradiation, a large energy loss in inelastic scattering and fission reactions occur, and neutron has a significant nuclear reaction. The energy deposition caused by gammas irradiation is linear with the thickness of SDD; the secondary electron energy distribution produced by gamma irradiation is from several eV to incident particle energy. As the scattering angle of secondary electron increases, the number of secondary electrons decreases. Therefore, a reasonable detector epitaxial thickness should be set in the anti-irradiation design of SDD.
A Novel Energy Harvester for Powering Small UAVs: Performance Analysis, Model Validation and Flight Results
Authors: Citroni Rocco , Di Paolo Franco , Livreri Patrizia
Published: April 2019

The proposed work aims at exploring and developing new strategies to extend mission parameters (measured as travel distance and mission duration (MD)) of a new class of unmanned vehicles, named Micro Air Vehicles (MAVs). In this paper, a new analytical model, identifying all factors, which determine the MAV power consumption, is presented. Starting from the new model, the design of a nanoarray energy harvester, based on plasmonics nano-antenna technology is proposed. The preliminary study was based on a 22,066,058 22,066,058 × 62,800-dipole rectenna array producing an output power level of 84.14 mW, and an energy value of 2572 J under a power density of 100 mW/cm² and a resonant frequency of 350 THz as input conditions. The preliminary analytical results show a possible recharge of an ultra-fast rechargeable battery on board of a MAV and an MD improvement of 16.30 min.
New Trends in the Simulation of Nanosplasmonic Optical D-Type Fiber Sensors
Authors: Guerreiro Ariel , Santos Diego Felipe , Baptista José Manuel
Published: April 2019

This article presents a review of the numerical techniques employed in simulating plasmonic optical sensors based on metal-dielectric nanostructures, including examples, ranging from conventional D-type fiber sensors, to those based on photonic crystal D-type fibers and incorporating metamaterials, nanowires, among other new materials and components, results and applications. We start from the fundamental physical processes, such as optical and plasmonic mode coupling, and discuss the implementation of the numerical model, optical response customization and their impact in sensor performance. Finally, we examine future perspectives.
Enabling Efficient Communications with Resource Constrained Information Endpoints in Smart Homes
Authors: Sánchez-de-Rivera Diego , Bordel Borja , Alcarria Ramón , Robles Tomás
Published: April 2019

Smart Homes are one of the most promising real applications of Internet of Things and Cyber-Physical Systems. Devices and software components are deployed to create enhanced living environments where physical information is captured by sensors, sent to servers and finally transmitted to information endpoints to be consumed after its processing. These systems usually employ resource constrained components in dense architectures supported by massive machine type communications. Components, to adapt to different scenarios, present several configuration options. In machine type communications, these configuration options should be selected dynamically and automatically. Many works have addressed this situation in relation to sensor-server communications but endpoints are still mostly manually configured. Therefore, in this paper it is proposed an automatic and dynamic configuration algorithm, based on the idea of “efficiency,” for information endpoints in the context of Smart Homes. Different costs associated to endpoint-server communications in Smart Homes are identified and mathematically modelled. Using this model and real measurements, the most efficient configuration is selected for each endpoint at each moment, not only guarantying the interoperability of devices but also ensuring an adequate resource usage, for example, modifying the endpoints’ lifecycle or the information compression mechanism. In order to validate the proposed solution, an experimental validation including both real implementation and simulation scenarios is provided.
A GaN-Based Wireless Monitoring System for High-Temperature Applications
Authors: Hassan Ahmad , Ali Mohamed , Trigui Aref , Savaria Yvon , Sawan Mohamad
Published: April 2019

A fully-integrated data transmission system based on gallium nitride (GaN) high-electron-mobility transistor (HEMT) devices is proposed. This system targets high-temperature (HT) applications, especially those involving pressure and temperature sensors for aerospace in which the environmental temperature exceeds 350 °C. The presented system includes a front-end amplifying the sensed signal (gain of 50 V/V), followed by a novel analog-to-digital converter driving a modulator exploiting the load-shift keying technique. An oscillation frequency of 1.5 MHz is used to ensure a robust wireless transmission through metallic-based barriers. To retrieve the data, a new demodulator architecture based on digital circuits is proposed. A 1 V amplitude difference can be detected between a high-amplitude (data-on) and a low-amplitude (data-off) of the received modulated signal. Two high-voltage supply levels (+14 V and −14 V) are required to operate the circuits. The layout of the proposed system was completed in a chip occupying 10.8 mm2. The HT characterization and modeling of integrated GaN devices and passive components are performed to ensure the reliability of simulation results. The performance of the various proposed building blocks, as well as the whole system, have been validated by simulation over the projected wide operating temperature range (25–350 °C).
Electro-Oxidation of CO Saturated in 0.1 M HClO4 on Basal and Stepped Pt Single-Crystal Electrodes at Room Temperature Accompanied by Surface Reconstruction
Authors: Abe Kiyotaka , Uchida Hiroyuki , Inukai Junji
Published: April 2019

The electro-oxidation of CO on Pt surface is not only fundamentally important in electrochemistry, but also practically important in residential fuel cells for avoiding the poisoning of Pt catalysts by CO. We carried out cyclic voltammetry on Pt(111), (110), (100), (10 10 9), (10 9 8), (10 2 1), (432), and (431) single-crystal surfaces using a three compartment cell to understand the activity and durability towards the electro-oxidation of CO saturated in 0.1 M HClO4. During the potential cycles between 0.07 and 0.95 V vs. the reversible hydrogen electrode, the current for the electro-oxidation of CO at potentials lower than 0.5 V disappeared, accompanied by surface reconstruction. Among the electrodes, the Pt(100) electrode showed the lowest onset potential of 0.29 V, but the activity abruptly disappeared after one potential cycle; the active sites were extremely unstable. In order to investigate the processes of the deactivation, potential-step measurements were also conducted on Pt(111) in a CO-saturated solution. Repeated cycles of the formations of Pt oxides at a high potential and Pt carbonyl species at a low potential on the surface were proposed as the deactivation process.
VARIACIÓN EN LAS PROPIEDADES BROMATOLÓGICAS DE TRES TIPOS DE PASTURAS PARA USO GANADERO EN EL DISTRITO DE CONSERVACIÓN SUELOS BARBAS BREMEN
Authors: Reyes Pineda Henry , Guacán-Andrade Rafael , Narváez Felipe , Rengifo Juan Carlos , Cardona Hernández Leidy Carolina , Galvis Marcelino , Manrique Sandra Milena
Published: April 2019

El Municipio de Filandia está ubicado en la vertiente occidental de la Cordillera Central de Colombia, cuenca del Alto Cauca. Su territorio representa el 5.58% de la extensión total del Departamento del Quindío; dicho municipio presenta una gran actividad ganadera la cual ha venido en aumento, siendo la ganadería de doble propósito (leche y carne) como actividad económica más utilizada para el sustento de sus hogares. Se realizó una recolección de muestras de pastos y tierras de propiedades de miembros de asociaciones ganaderas, como parte de la estrategia integradora del departamento que promueve las técnicas menos dañinas para el medio ambiente por la actividad ganadera. Encontramos que los valores nutricionales de las pasturas tienen niveles de proteína media y valores de grasa bajos con relación a los marcos de referencia mínimos. Esto puede ser atribuido a los periodos de altas lluvias que se observan en la región y a los procesos de ganadería no estandarizados y controlados, pues en dichos predios no se realiza rotación, siendo esto último un mecanismo que permite el máximo aprovechamiento del potrero por unidad de ganado.
KORELASI TINGKAT PENGETAHUAN DAN PENDIDIKAN TERHADAP PARTISIPASI POLITIK MASYARAKAT PADA PEMILIHAN GUBERNUR RIAU 2018 DI KECAMATAN RENGAT
Authors: Utami Sabrina
Published: April 2019

Penelitian ini membahas mengenai bagaimana korelasi antara tingkat pengetahuan dan pendidikan terhadap partisipasi politik masyarakat pada pemilihan Gubernur Riau 2018 di Kecamatan Rengat. Indonesia saat ini menggunakan sistem Demokrasi, dimana Demokrasi sendiri dapat diartikan sebagai sebuah sistem pemerintahan yang “berasal dari rakyat, oleh rakyat dan untuk rakyat”, artinya bahwa dalam sistem Demokrasi ini rakyat atau masyarakat memiliki peranan penting dalam mensukseskan jalannya pemerintahan. Salah satu bentuk kontribusi masyarakat dalam pemerintahan yaitu dengan berpartisipasi dalam setiap pemilihan yang diadakan. Terdapat banyak sekali jenis pemilihan umum yang dapat menjadi wadah bagi masyarakat untuk berpartisipasi di dalamnya, salah satunya yaitu Pemilihan Gubernur.

Besar kecilnya partisipasi politik masyarakat dalam setiap pemilihan, salah satunya yaitu dalam Pemilihan Gubernur dapat dipengaruhi oleh beberapa hal, diantaranya yaitu tingkat pengetahuan dan pendidikan yang dimiliki oleh warga masyarakat. Semakin mumpuni tingkat pengetahuan dan pendidikan yang diemban oleh masyarakat, biasanya akan sejalan dengan besarnya partisipasi masyarakat dalam perpolitikan. Hasil dari penelitian ini menunjukkan bahwa tingkat pengetahuan dan pendidikan memiliki pengaruh yang signifikan terhadap partisipasi politik masyarakat pada pemilihan Gubernur Riau 2018 di Kecamatan Rengat.
HUBUNGAN AKTIVITAS FISIK LANSIA DENGAN KEPADATAN TULANG DI POSKESKEL RENGAS PULAU MARELAN MEDAN
Authors: Sembiring Rosalina Imelda
Published: April 2019

Hubungan aktivitas fisik lansia dengan kepadatan tulang di Poskeskel Rengas Pulau Marelan Medan Tahun 2014. Proporsi penduduk lansia Indonesia tahun 2000 adalah 7,18%, tahun 2010 meningkatkan sekitar 9,7%, sedangkan tahun 2020 diperkirakan meningkatkan sekitar 11,34% (BKKBN, 2012). Proses penuaan tidak dapat dihentikan, namun dapat diperlambat. Transisi demografi kearah menua tidak dapat dihentikan, namun dapat diperlambat. Transisi demografi kearah menua akan diikuti oleh transisi epidemiologi kearah penyakit degeneratif yang salah satunya adalah osteoporosis. Prevalensi osteoporosis di Jakarta, Surabaya, Semarang, Bandung dan Medan penderita osteoporosis sudah mencapai 30% (Hans, 2009). Tujuan penelitian ini adalah mengetahui hubungan aktivitas fisik dengan kepadatan tulang lansia.Jenis penelitian adalah survey potong lintang (cross sectional survey). Populasi adalah kelompok lansia di Poskeskel Rengas Pulau Marelan Medan sebanyak 83 orang dibantu dengan menggunakan alat ukur bone densitometry portable (metode ultrasound) yang dibantu tim Anlene. Uji yang digunakan adalah uji Chi-Square dan uji Regresi Logistik Ganda.Hasil penelitian di Poskestel Rengas Pulau Marelan Medan Tahun 2014, lansia yang menderita osteoporosis sebanyak 27,7%. Intensitas latihan berhubungan dengan kepadatan tulang setelah dikontrol oleh usia, kebiasaan merokok, dan kebiasaan minum kopi. Lansia dengan intensitas latihannya kurang lama beresiko terjadi osteoporosis 52 kali dibanding dengan lansia yang intensitas latihannya lama. Bagi Pemerintah memberikan alat Bone Densito Metri Portable di setiap puskesmas kecamatan untuk screening osteoporosis yang dijadikan riset Nasional. Bagi Poskeskel Rengas Pulau Marelan Medan, meningkatkan pelayanan kesehatan dan penyuluhan pada lansia, khususnya penyuluhan tentang aktifitas fisik lansia. Bagi Responden, agar dapat mempertahankan kegiatan sehari-hari dan tetap aktif dalam kegiatan kelompok lansia yang ada di poskeskel Rengas Pulau Marelan Medan, sehingga dapat mempertahankan kualitas kepadatan tulang yang baik dan meningkatkan kualitas kepadatan tulang yang sudah osteoporosis.Kata kunci : Osteoporosis, umur, kebiasaan merokok, kebiasaan minum kopi
PERSEPSI MAHASISWA TERHADAP LAYANAN KEGIATAN MAHASISWA S1 KEPERAWATAN DI FAKULTAS KEPERAWATAN USU
Authors: Syaiful Syaiful
Published: April 2019

Layanan kegiatan mahasiswa yang merupakan salah satu evaluasi internal dalam penyelenggaraan program studi pendidikan tinggi. Hasilnya dapat digunakan untuk mendukung pencapaian kompetensi mahasiswa khususnya untuk pengembangan soft skill. Penelitian deskriptif eksploratif dilakukan untuk mengetahui persepsi mahasiswa terhadap layanan kegiatan mahasiswa S1 Keperawatan di Fakultas Keperawatan Universitas Sumatera Utara. Sampel adalah mahasiswa S1 reguler semester 3, 5 dan 7 dengan menggunakan tehnik cluster sampling. Pengumpulan data menggunakan kuesioner yang melibatkan 80 responden mahasiswa S1 Keperawatan reguler. Hasilnya menunjukan 68,7 %  mempunyai persepsi yang tidak baik terhadap lima layanan yaitu layanan bimbingan dan konseling, layanan minat dan bakat, layanan pembinaan soft skills, layanan beasiswa dan layanan kesehatan. Direkomendasikan untuk meningkatkan layanan kegiatan mahasiswa di Fakultas Keperawatan Universitas Sumatera Utara yang mencakup layanan bimbingan dan konseling, minat dan bakat dan pembinaan soft skills yang saat ini belum ada.Kata Kunci :  Persepsi, Layanan Kegiatan, Mahasiswa S1 Reguler
HUBUNGAN PENGETAHUAN IBU TENTANG GIZI DENGAN GEJALA ANEMIA IBU HAMIL DI RUMAH BERSALIN MARIANI MEDAN
Authors: Nurleli Nurleli
Published: April 2019

Anemia pada kehamilan sering disebabkan oleh poor nutrition, defisiensi zat besi dan infeksi malaria. Sebagaimana diketahui bahwa pada kehamilan kebutuhan zat besi meningkat karena perubahan fisiologis dadn metabolisme. Maka dampak dari anemia padaibu hamil akan menyebabkan rendahnya kemampuan jasmani karena sel-sel tubuh tidak cukup mendapatkan oksigen,meningkatkan frekuensi komplikasi pada kehamilan dan persalinan. Hal ini akan beresiko kematian maternal, angka prematuritas, BBLR dan angka kematian perinatal meningkat.       Tujuan dari penelitian ini adalah untuk mengetahui seberapa jauh hubunganan  pengetahuan ibu tentan gizi dengan gejala anemia ibu hamil. Jenis penelitian yang digunakan dalam penelitian ini adalah deskriptif korelasi dengan menggunakan desain studi cross sectional. Teknik pengambilan sampel pada penelitian ini adalah purposive sampling, jumlah sampelpenelitian ini adalah 40 orang.Hasil penelitian diuji Chi Square dengan uji statistik diperoleh nilai p=0,002 yang berati p< 0,05. Angka korelasi berkisar antara 0 s/d 1. Signifikasi hubungan dua variabel dapat dianalisis dengan ketentuan jika P < 0,05 hubungan signifikan, jika P > 0,05 hubungan tidak signifikan. Selanjutnya ditemukan hubungan pengetahuan ibu tentang gizi dengan gejala anemia ibu hamil hasil uji statistik diperoleh nilai p=0,002 yang berati p< 0,05 maka dapat disimpulkan bahwa ada hubungan pengetahuan ibu tentang gizi dengan gejala anemiaibu hamil di Rumah Bersalin Mariani Medan Tahun 2015. Saran dari peneliti  diharapkan kesadaran dari ibu hamil sendiri untuk mengunjungi petugas kesehatan didaerah tempat tinggalnya guna memperoleh informasi tentang gizi pada ibu hamil agar mencegah terjadinya anemia pada ibu hamilKata kunci : Pengetahuan, Anemia, ibu hamil
STUDI KASUS PEMENUHAN KEBUTUHAN NUTRISI PADA PASIEN PPOK DI RUMAH SAKIT TINGKAT II PUTRI HIJAU MEDAN TAHUN 2017
Authors: Purba Lermiana , Susyanti Deni , Siahaan Lilis Savanna
Published: April 2019

Background of  Chronic Pulmonary Obstruction Disease (COPD) is identified by productive coughing, dyspnea, and obstruction in the respiratory tract. It is the combination of emphysema, chronic bronchiolitis, and asthma. One of the symptom of COPD is the decrease in bodyweight. The research used descriptive method with 2 COPD patients at Putri Hijau Level II Hospital Medan. The result of the analysis on the 2 patients showed that their need for nutrition was fulfilled but in different time, the need for nutrition in patient 1 was fulfilled in the 2nd day while in patient 2 it was fulfilled in the 3nd day due to the difference in their age. The conclusion was that the need for nutrition in COPD patients was different because of the difference in age. It is recommended that COPD patients always pay attention to the program in fulfilling their need for nutrition.Keywords: Nutrition, Chronic Obstruction Pulmonary Desease, Chronic
FAKTOR-FAKTOR PENYEBAB TERJADINYA PENYAKIT OSTEOPOROSIS PADA LANSIA DI UPT PELAYANAN SOSIAL LANJUT USIA DI WILAYAH BINJAI TAHUN 2017
Authors: Suarni Leny
Published: April 2019

Osteoporosis is a disease that attacks the bone where the bone becomes brittle (flagella) and is easily broken and fractured. Many of the factors that cause Osteopororsis are one of them is calcium deficiency, especially in childhood to adolescence. By looking at the conditions above, the writer wants to do a research that aims to find out the Factors Causing Osteoporosis in the Elderly in the 2017 Binjai Elderly Service Unit. This research is descriptive with a cross sectional design carried out for the elderly with 25 people. This data collection is done by questionnaire. The results of this study indicate that the factors that cause osteoporosis are calcium deficiency factors as many as 18 people (72%), drug factors as many as 20 people (80%), smoking factors and consuming alcohol as many as 10 people (40%), factors lack of exercise as many as 19 people (76%), and disease factors as many as 15 people (60%). So, it can be concluded that the most dominant cause of osteoporosis in the elderly in the UPT for Elderly Social Services in the Binjai Region in 2017 is 80% Medicines. Therefore, it is expected that the elderly will consume less drugs that can cause Osteoporosis.Keywords: Osteoporosis, Causes of Osteoporosis, Elderly
THE STUDY OF HEAT TRANSFER IN INTENSIFIED SHELL AND TUBE DEVICE
Authors: Никулин Н. , Nikulin Nikolay
Published: April 2019

The use and prevalence of heat exchangers in Russian heat supply systems are considered. Attention is paid to the improvement of serial heat exchangers with smooth tubes – the increasing of heat transfer coefficient. One of the ways to increase the heat transfer coefficient is considered: it is the turbuliza-tion of the fluid flow on the heat exchange surface. The original design of the heat exchange surface for shell and tube devices of heat supply systems is presented. The dynamics of the heated fluid in the annular space of a shell and tube heat exchanger when flowing around the heat exchange surface with a modified geometry is studied (RF Patent 149737). A feature of the dynamics is a circular edge (element of the surface of heat exchange), which contributes to the creation of turbulence in the flow of the heated liquid on the plate and on the surface of the next edge. Emphasis is placed on heat ex-change processes between the solid surface of the edges and the heated fluid. For a circular cross sec-tion, the equation of thermal conductivity in cylindrical coordinates is compiled, taking into account the stationary heat exchange process, with an internal source of thermal energy. Solution of equation makes possible to determine the change in temperature on the surface and the average temperature of the edge. This value allows determining the Prandtl number to calculate the heat transfer coefficient.
TECHNOLOGY OF OBTAINING MULTILAYER STRUCTURES VARIATIONAL STRUCTURE
Authors: Шорстов Р. , Shorstov R. , Сулейманова Л. , Suleymanova Lyudmila , Кара Карина , Kara Karina
Published: April 2019

The current state of the market for the production of aerated concrete in the Russian Federation and its prospects are considered. Every year, the production of cellular concrete is constantly increasing due to the construction of new plants that produce the most advanced technologies with the use of modernized equipment. However, there are technological and prescription raw materials issues. Therefore, the development of new technologies for the production of cellular concrete products due to the improvement, modernization and development of fundamentally new technological methods is highly important. The technologies for producing multilayer cellular concrete designs with a variational structure are considered. This allows to get products with high performance that meets modern requirements for energy efficiency and durability. The method of layered pouring of a cellular concrete mixture into a form with removable partitions is proposed for creating a single-layer construction of cellular concrete with variable density over the section. The integral principle is shown from small ones at the periphery, to large ones in the middle of the block, taking into account the rheological characteristics of cellular concrete mixtures and the foaming time. They provide the possibility of obtaining a design with a smooth transition of the structural heat-insulating layer to the layer without seams, air gaps and other possible defects arising during the molding of three-layer structures from non-uniform materials.
KEPERCAYAAN DIRI DAN EFIKASI DIRI TERHADAP KEMATANGAN KARIR MAHASISWA DI POLITEKNIK LP3I JAKARTA KAMPUS JAKARTA UTARA
Authors: Rustanto Agung Edi
Published: April 2019

Penelitian ini berjudul “Kepercayaan diri dan efikasi diri terhadap kematanagan karir mahasiswa Politeknik LP3I Jakarta Kampus Jakarta Utara”. Tujuan penelitian ini adalah mengetahui besarnya  pengaruh kepercayaan diri dan efikasi diri terhadap kematangan karir mahasiswa Politeknik LP3I Jakarta Kampus Jakarta Utara. Jenis penelitianyang digunakan dalam penelitin ini yaitu deskriptif kuantitatif. Populasi penelitian ini yaitu seluruh  mahasiswa Politeknik LP3I Jakarta Kampus Jakarta Utara berjumlah 400 dan teknik sampling yang digunakan yaitu dengan simple random sampling yang merujuk pada pendapat Gay dan Diehl (1992)menghasilkan sample sebanyak 40 mahasiswa. Instrument yang digunakan dalam penelitian ini adalah angket dan analisis data yang digunakan yaitu regresi berganda. Hasil penelitian ini yaitu terdapat pengaruh positif dan signifikan  kepercayaan diri terhadap kematangan karir mahasiswa di Politeknik LP3I Jakarta Kampus Jakarta Utara sebesar 57,5%.Terdapat pengaruh positif dan signifikan efikasi diri terhadap kematangan karir mahasiswa di Politeknik LP3I Jakarta Kampus Jakarta Utara sebesar 79,6%.Terdapat pengaruh positif dan signifikan kepercayaan diri dan efikasi diri terhadap kematangan karir mahasiswa di Politeknik LP3I Jakarta Kampus Jakarta Utara sebesar 82,3%.

Kata Kunci : Kepercayaan Diri, Efikasi Diri, Karir Mahasiswa
Вибір показників для оцінювання технічного стану авіаційного ракетного озброєння
Authors: Герасимов С. В. , Баранік О. М.
Published: April 2019

Показано, що переведення авіаційного ракетного озброєння на експлуатацію за технічним станом передбачає посилення ролі операцій з вимірювання та контролю його параметрів іхарактеристик з метою визначення дійсного технічного стану та прийняття обґрунтованих рішень щодо його подальшої експлуатації. Це потребує обґрунтованого вибору показниківдля оцінювання технічного стану. Запропонована система показників ефективності контролю технічного стану авіаційного ракетного озброєння. Показаний взаємозв’язок цих показників на різних рівнях взаємодії.
Науково-методичний апарат обґрунтування основних вимог до аеродинамічних та аеростатичних характеристик прив'язного аеростата мобільного аеростатного радіолокаційного комплексу виявлення маловисотних цілей
Authors: Бєляєв Д. М , Расстригін О. О. , Кісєль П. І. , Семенюк Р. П.
Published: April 2019

Розглянуто вдосконалений науково-методичний апарат розрахунку аеродинамічних та аеростатичних характеристик прив’язного аеростата з метою обґрунтування основних вимог до мобільного аеростатного радіолокаційного комплексу виявлення маловисотних цілей.
Методологічні основи структурного синтезу систем відновлення озброєння та військової техніки угруповання військ
Authors: Шишанов М. О. , Шевцов М. М. , Чеченкова О. Л.
Published: April 2019

Розглянуто основні принципи і задачі, що розв’язуються при організації та управлінні складними організаційно-технічними системами, а також необхідність використання методологіїструктурного синтезу при формалізації задач коригування основних параметрів системи відновлення.
Пропозиції щодо побудови систем траєкторних вимірювань та єдиного часу для мобільного полігонного вимірювально-обчислювального комплексу
Authors: Дзисюк О. В. , Бойко В. М. , Гаврилов А. Б. , Рондін Ю. П. , Коломійцев О. В.
Published: April 2019

Надані пропозиції щодо структур та науковометодичного апарату синтезу перспективних багатопараметричної лазерної інформаційно-вимірювальної системи траєкторних вимірюваньта системи єдиного часу з використанням національного еталона часу і частоти, військових еталонів та волоконно-оптичних ліній зв’язку для полігонного вимірювально-обчислювального комплексу Збройних Сил України.
Проблемні аспекти інтеграції нетрадиційних видів озброєння до складу перспективної системи озброєння збройних сил держави
Authors: Величко О. , Гриб Д. , Демидов Б. , Луханін М.
Published: April 2019

Розглядаються системно-концептуальні основи та методологічні проблемні питання, пов'язані зі створенням та інтеграцією до складу перспективної системи озброєння збройних сил військово-економічно обґрунтованих і технічно (технологічно) прийнятних пріоритетних варіантів нетрадиційних видів озброєння з використанням новітніх технологій оборонного призначення.
Тенденции и перспективы развития реактивных учебно-тренировочных самолетов
Authors: Нор П. І.
Published: April 2019

Проведене дослідження тенденцій розвитку реактивних навчально-тренувальних літаків за останні більш ніж 70 років. Запропонована їхня класифікація на три покоління розвитку та сформульовані характерні ознаки кожного покоління. Коротко розглянуті перспективи розвитку реактивних навчально-тренувальних літаків
Пропозиції щодо порядку використання іноземної елементної компонентної бази в радіоелектронній апаратурі зенітного ракетного озброєння, за яким не здійснюється авторський нагляд
Authors: Ніколаєв І.
Published: April 2019

Обґрунтовуються пропозиції щодо вдосконалення нормативно-правового механізму, що має регламентувати порядок застосування іноземної елементної компонентної бази в системах(комплексах) зенітного ракетного озброєння, за якими не здійснюється авторський нагляд, для підтримки їх в боєготовому стані силами підприємств і установ України без участі їхніх розробників і виробників.
Особливості забезпечення енергетичної ефективності випромінювання гідроакустичних станцій
Authors: Лейко О. , Дерепа А. , Аверічев І. , Кочарян О.
Published: April 2019

Виконані дослідження вхідних електричних опорів та їх активної та реактивної складових кругових циліндричних випромінювачів силової конструкції в складі кругових циліндричних антенз екраном при роботі антени в режимі секторного випромінювання.
Системний підхід до оцінки воєнно-технічних аспектів забезпечення стану воєнної безпеки в умовах нових глобальних політичних та ресурсних змін
Authors: Чепков І. , Зубарєв В. В. , Свергунов О. О.
Published: April 2019

Проведено системний аналіз різних факторів впливу на ефективність воєнно-технічної політики, що виникли останніми роками в умовах нових глобальних політичних, економічних, технологічних та ресурсних змін, та сформульовано методичний підхід до оцінки впливу таких факторів на ефективність воєнно-технічної політики.
Програмно-цільовий метод планування. Застосування програмно-цільового методу в системі оборонного планування США
Authors: Чепков Ігор , Демченко Є. Я. , Москвітін О.
Published: April 2019

Запропоновано огляд функціонування одного з ключових елементів системи підтримки прийняття рішення, а саме, процес планування, програмування, бюджетування та виконання (Planning, Programming, Budgeting and Execution – PPBE), розкрито зміст та механізм його функціонування та розглянутий програмно-цільовий метод планування, що покладений у йогооснову, у системі оборонного планування США. У статті враховані інформаційні матеріали, надані експертами НАТО в ході міжнародної зустрічі 16 лютого 2018 року.
Окремі технологічні аспекти впровадження принципів мережецентричності в перспективні знання-орієнтовані інформаційно-аналітичні системи управління розвитком озброєння та військової техніки
Authors: Holovin O. O. , Stryzhak O. Ye.
Published: April 2019

Запропоновано підвищення ефективності взаємодії міністерств (відомств), структурних підрозділів МО України та ГШ ЗС України при рішенні задач управління розвитком ОВТ здійснити шляхом інтеграції їх мережевих інформаційних ресурсів в єдину інформаційно-аналітичну систему. Показано, що формування відкритого мережентричного середовища доцільно здійснити на основі використання принципів трансдисциплінарних онтологій. Зазначений підхід забезпечить ефективну обробку великих обсягів неструктурованої і просторово-розподіленої інформації у стислі терміни.
Свойства цилиндрических гидроакустических преобразователей с внутренними податливыми экранами
Authors: Derepa A. V. , Averichev I. V. , Leiko O. H. , Kizyma D. M. , Sviatnenko O. O.
Published: April 2019

Приведены аналитические соотношения и на их основе численными методами исследованы свойства механических полей цилиндрических пьезокерамических преобразователей с внутренними акустически мягкими экранами. Установлены в широком диапазоне частот закономерности поведения частотных и угловых зависимостей амплитуд и фаз колебательной скорости от размеров экрана и степени удаления его от центра пьезокерамической оболочки преобразователя.
MicroRNA-510 Plays Oncogenic Roles in Non-Small Cell Lung Cancer by Directly Targeting SRC Kinase Signaling Inhibitor 1
Authors: Wu Wei , He Linyan , Huang Yan , Hou Likun , Zhang Wei , Zhang Liping , Wu Chunyan
Published: April 2019

An increasing number of studies have demonstrated that microRNAs (miRNAs) may play key roles in various cancer carcinogenesis and progression, including non-small cell lung cancer (NSCLC). However, the expressions, roles, and mechanisms of miR-510 in NSCLC have, up to now, been largely
undefined. In vivo assay showed that miR-510 was upregulated in NSCLC tissues compared with that in adjacent nontumor lung tissues. miR-510 expression was significantly correlated with TNM stage and lymph node metastasis. In vitro assay indicated that expressions of miR-510 were also increased
in NSCLC cell lines. Downregulation of miR-510 suppressed NSCLC cell proliferation and invasion in vitro. We identified SRC kinase signaling inhibitor 1 (SRCIN1) as a direct target gene of miR-510 in NSCLC. Expression of SRCIN1 was downregulated in lung cancer cells and negatively correlated
with miR-510 expression in tumor tissues. Downregulation of SRCIN1, leading to inhibition of miR-510 expression, reversed cell proliferation and invasion in NSCLC cells. These results showed that miR-510 acted as an oncogenic miRNA in NSCLC, partly by targeting SRCIN1, suggesting that miR-510
can be a potential approach for the treatment of patients with malignant lung cancer.
СХОДИМОСТЬ И УСТОЙЧИВОСТЬ РАЗНОСТНЫХ СХЕМ ДЛЯ РЕШЕНИЯ НЕЛИНЕЙНЫХ ЭВОЛЮЦИОННЫХ УРАВНЕНИЙ
Authors: Ivanauskas F. F.
Published: April 2019

„Сходимость и устойчивость разностных схем для решения нелинейных эволюционных уравнений" Mathematical Modelling Analysis, 1(1), p. 28-31
ВЫЧИСЛЕНИЕ ИНТЕГРАЛА, СВЯЗАННОГО С ИССЛЕДОВАНИЕМ ЭЛЕКТРОПРОВОДНОСТИ АНИЗОТРОПНО ПРОВОДЯЩИХ СРЕД
Authors: Kleiza I.
Published: April 2019

„Вычисление интеграла, связанного с исследованием электропроводности анизотропно проводящих сред" Mathematical Modelling Analysis, 1(1), p. 37-41
СИЛЬНО ВЫРОЖДАЮЩЕЙСЯ ЭЛЛИПТИЧЕСКИЕ УРАВНЕНИЯ В КОМПЛЕКСНОЙ ОБЛАСТИ
Authors: Kviadaras B.
Published: April 2019

„Сильно вырождающейся эллиптические уравнения в комплексной области" Mathematical Modelling Analysis, 1(1), p. 37-41
К ПОСТРОЕНИЮ КЛАССА УСРЕДНЯЕМЫХ РЕШЕНИЙ СИСТЕМ ДИФФЕРЕНЦИАЛЬНЫХ УРАВНЕНИЙ С ЧАСТНЫМИ ПРОИЗВОДНЫМИ
Authors: Krilov A. V.
Published: April 2019

„К построению класса усредняемых решений систем дифференциальных уравнений с частными производными" Mathematical Modelling Analysis, 1(1), p. 51-52
О ПРИНЦИПЕ ЭКСТРЕМУМА ДЛЯ СИСТЕМЫ ЭЛЛИПТИЧЕСКИХ УРАВНЕНИЙ ВТОРОГО ПОРЯДКА С НЕОТРИЦАТЕЛЬНОЙ ХАРАКТЕРИСТИЧЕСКОЙ ФОРМОЙ
Authors: Rutkauskas S.
Published: April 2019

„О принципе экстремума для системы эллиптических уравнений второго порядка с неотрицательной характеристической формой" Mathematical Modelling Analysis, 1(1), p. 56-57
THE EVOLUTION OF THE PANMICTION” POPULATION TAKING INTO ACCOUNT DESTRUCTION OF THE FOETUS
Authors: Skakauskas V.
Published: April 2019

„The evolution of the panmiction” population taking into account destruction of the foetus" Mathematical Modelling Analysis, 1(1), p. 67-75
THE MATHEMATICAL SIMULATION OF THE LIQUID TRANSPORT IN A MULTILAYERED NONWOVEN
Authors: Čiegis Raimondas , Zemitis Aivars
Published: April 2019

In this report we treat an optimization task, which should make the choice of nonwovens for making diapers faster. A mathematical model for the liquid transport in nonwoven is developed. Finite‐difference schemes are proposed for numerical solving of the differential problem. Parallel algorithms are considered and results of numerical experiments are given.
ON GENERAL REPRESENTATION OF THE MEROMORPHIC SOLUTIONS OF HIGHER ANALOGUES OF THE SECOND PAINLEVE EQUATION
Authors: Gromak V. I. , Stepanova T. S.
Published: April 2019

„On general representation of the meromorphic solutions of higher analogues of the second painleve equation" Mathematical Modelling Analysis, 2(1), p.61-65
THE CONVERGENCE AND STABILITY OF EXPLICIT DIFFERENCE SCHEMES FOR NONLINEAR SCHRODINGER EQUATION
Authors: Ivanauskas F. , Radžiūnas M.
Published: April 2019

„The convergence and stability of explicit difference schemes for nonlinear schrodinger equation" Mathematical Modelling Analysis, 2(1), p. 66-74
DECOUPLING OF IMPULSIVE DIFFERENTIAL EQUATIONS
Authors: Reinfelds Andrejs
Published: April 2019

„Decoupling of impulsive differential equations" Mathematical Modelling Analysis, 2(1), p. 130-137
SECTORAL ANALYSIS OF THE EFFECTIVENESS OF BANK RISK CAPITAL IN THE VISEGRAD GROUP COUNTRIES
Authors: Nocoń Aleksandra , Pyka Irena
Published: April 2019

Bank risk capital (capital at risk) is identified with the value of banks’ own funds maintaining to absorb potential losses and protect against insolvency. It is calculated for the capital adequacy ratios, recommended by the Basel Committee on Banking Supervision. On other words, it is a kind of banks’ capital that financing securing the negative effects of risk occurring. A comparative analysis of effectiveness of bank risk capital in the Visegrad Group countries, constituting the main objective of the study, results from the needs indicated in the already conducted preliminary research. In the article, statistical and econometric methods were used, based on linear regression models. The conducted research were aimed to verify the research hypothesis stating that in the analyzed banking sectors of the Visegrad Group countries there is a positive correlation between banks' profitability and a level of their bank risk capital. The study indicated that net profit of the analyzed banking sectors increases with a growth of total own funds, while profitability is diversified in individual countries. Declining operational efficiency results from the growing cost of obtaining and maintaining risk capital.
Response to Early-onset Pamidronate Treatment in Chronic Nonbacterial Osteomyelitis: A Retrospective Single-center Study
Authors: Andreasen Caroline Marie , Jurik Anne Grethe , Glerup Mia B. , Høst Christian , Mahler Birgitte T. , Hauge Ellen-Margrethe , Herlin Troels
Published: April 2019

Objectives.

Chronic nonbacterial osteomyelitis (CNO) is a sterile inflammatory bone disorder with an unpredictable disease course. The objective was to assess clinical and radiological disease activity in children with CNO including response to early-onset pamidronate treatment.

Methods.

A single-center retrospective study was conducted of children fulfilling the Bristol Criteria for CNO. At the time of diagnosis, whole-body magnetic resonance imaging (WB-MRI) or local MRI was performed to assess radiological disease activity. Children with multifocal or spinal bone inflammation and clinical disease activity not responding to nonsteroidal antiinflammatory drugs were categorized as having extended CNO. Clinical disease activity was assessed annually.

Results.

Fifty-one children were included. Median followup time was 4 years (interquartile range 3–7). Children categorized with extended CNO (n = 32) were treated in an early-onset 2-year pamidronate regimen. In extended CNO, WB-MRI was performed at time of diagnosis, and at years 1 and 2 in 88%, 84%, and 91% of cases, respectively. During the first year, the total number of radiologically active lesions and number of spinal lesions per patient declined (p = 0.01). Clinically inactive disease was recorded in 12/32 children (38%). However, 8/12 children (67%) experienced clinical relapse. In limited CNO (n = 19), 10/19 children (53%) presented with clinically inactive disease after 1 year and did not experience clinical relapse.

Conclusion.

Pamidronate might contribute to improvement in clinical and radiological disease activity in extended CNO, especially after 1 year of treatment. However, children with continuously active disease after 2 years of pamidronate treatment were seen.
Long-term Outcomes of a New Surgical Technique for Corneal Remodeling in Corneal Ectasia
Authors: Carriazo César , Cosentino María José
Published: April 2019

PURPOSE:

To analyze the outcomes of a new technique (corneal remodeling) to treat corneal ectasia.

METHODS:

Sixty-nine cases that underwent corneal remodeling were analyzed. Anesthetic drops were instilled and a femtosecond laser platform was used to perform an 8-mm diameter keratectomy (180°, 270°, or 360°). Once ablation was completed, the edges of the resection were sutured with 8 to 12 interrupted stitches.

RESULTS:

Three-year follow-up data are presented. The age of the population was 30.83 ± 12.65 years (range: 16 to 48 years). At 36 months postoperatively, 57.2% presented with uncorrected distance visual acuity (UDVA) of 20/100 or worse and 42.8% achieved between 20/80 and 20/40. After performing photorefractive keratectomy in 3 cases, 14.3% presented with UDVA of 20/100 or worse, 57.2% achieved between 20/80 and 20/40, and 28.5% achieved 20/30 or better in 180° arc length keratectomy. Most parameters compared were moderately to statistically significant (
P
< .05 to < .0000001).

CONCLUSIONS:

Corneal remodeling is a safe technique that produces corneal flattening, reduction of anterior chamber depth, and decreased optical aberrations. It also offers a possibility to perform complementary refractive procedures.

[
J Refract Surg
. 2019;35(4):261–267.]
Standard Clinical Outcomes With a New Low Addition Trifocal Intraocular Lens
Authors: Fernández Joaquín , Rodríguez-Vallejo Manuel , Martínez Javier , Tauste Ana , Piñero David P.
Published: April 2019

PURPOSE:

To evaluate the standard clinical outcomes, defocus curves, and satisfaction obtained with a new diffractive low addition trifocal intraocular lens (IOL).

METHODS:

Thirty patients who were implanted with the Versario Multifocal 3F IOL (Valeant Med Sp.zo.o., Warsaw, Poland) were recruited for a prospective observational study at Qvision, Vithas Virgen del Mar Hospital, Almería, Spain. Variables for reporting standard outcomes were collected at the 1-month visit for monocular vision and the 3-month visit for binocular vision, including best spectacle refraction and corrected and uncorrected visual acuities at far, intermediate (67 cm), and near (40 cm) distances. In addition, monocular and binocular visual acuity defocus curves were measured and questionnaires for grading subjective visual quality, satisfaction, and visual function were supplied at the end of the follow-up.

RESULTS:

Monocular corrected distance visual acuity decreased progressively from far (−0.05 logMAR) to near (0.25 logMAR) and improved approximately −0.1 logMAR along the defocus curve in binocular vision. The mean residual spherical equivalent (SE) was 0.15 ± 0.47 diopters (D), with 79% of eyes within ±0.50 D and 97% within ±1.00 D with the SRK/T formula. All of the visual function tasks improved after surgery, especially driving at night, which increased from 58 to 79 (
P
< .05). Of 27 patients, 84.4% were satisfied or very satisfied with their general vision.

CONCLUSIONS:

This new lens was similar in terms of visual performance and satisfaction to other trifocal IOLs. It can be classified as a trifocal extended depth of focus IOL because of the performance between extended depth of focus IOLs and medium-high addition trifocal IOLs.

[
J Refract Surg
. 2019;35(4):214–221.]
Full-Term Neonatal Respiratory Distress and Chronic Lung Disease
Authors: Chowdhury Naema , Giles B. Louise , Dell Sharon D.
Published: April 2019

Respiratory distress occurs in 5% to 7% of live births at term gestation. Most cases are mild and transient and can be attributed to transient tachypnea of the newborn or “wet lung.” Severe respiratory distress is often due to nonpulmonary causes such as sepsis or congenital heart disease. Occasionally, term neonatal respiratory distress is associated with an inherited primary lung disease such as primary ciliary dyskinesia or surfactant metabolism defects. These lung diseases have characteristic presentations in the neonatal period and are important to recognize, as they necessitate different management approaches and have lifelong implications. Suspicion for these diseases should prompt referral to a pediatric pulmonologist.

[
Pediatr Ann
. 2019;48(4):e175–e181.]
sCool – Game-Based Learning in Computer Science Class: A Case Study in Secondary Education
Authors: Steinmaurer Alexander , Pirker Johanna , Gütl Christian
Published: April 2019

In this paper we present a case study of the mobile learning game sCool [1]. Based on previous work presented Steinmaurer et. al. (2018) [2] we expand-ed our study by a second experiment and additional aspects. sCool is a mul-ti-platform game that should encourage children learning computational thinking and coding in Python. The learning content is highly adaptable; therefore, educators can create own courses, individual for the needs of the students. These courses involve a concept-learning and a practical mode. First, the students learn a certain concept and in a second step, they have to apply it in a practical task. For this purpose, we created a course to teach some basic programming concepts. Two student groups of different school types participated in class as a formal learning activity. In this paper we pre-sent the results of the evaluation of sCool in coding classes. Therefore, we focus on the performance, game engagement, emotions and the girls’ percep-tion. Within this study we found out, that the students are interested in learn-ing to code but do have problems to transfer the learned content to similar fields. We also found out, that there are slightly differences in the perfor-mance of the different types of students in terms of gender and school type.
Collaboratively Developing Open Educational Resources for Engineering Educators in SlideWiki
Authors: Moundridou Maria , Zalavra Eleni , Papanikolaou Kyparisia , Tripiniotis Angeliki
Published: April 2019

This paper reports on a study that was conducted to explore the potential of SlideWiki for collaborative content creation in a teacher education context. SlideWiki is a newly developed platform built on the Open Educational Re-sources (OER) ethos aiming to facilitate the collaboration around educational con-tent. In this study, 134 students (pre-service engineering educators) used SlideWiki to collaboratively develop OERs in the form of WebQuests. Students’ answers to a survey questionnaire were used to address their experience, while real interaction data from the SlideWiki platform were used to determine students’ participation in SlideWiki during the development of OERs both as individuals and as groups. The study yielded positive findings regarding students’ perceptions of the potential of SlideWiki to serve as an effective tool for collaboratively developing OERs and of its usefulness and effectiveness for supporting communities of educators. Also, assuming their future role as educators, students ex-pressed their intention to utilize SlideWiki in their practice. However, a discrepancy was noticed between students’ perceptions and their actual participation in SlideWiki (e.g. unequal distribution of workload among group members) that may be due to students’ lack of collaborative skills that need to be further cultivated.
Moving Toward Culturally Restorative Teaching Approaches
Authors: Revell Mike
Published: April 2019

This mixed-method study examines the interaction between teacher sense of efficacy (TSE) in the use of culturally responsive teaching practices (CRTP). Framework analysis confirms a significant relationship between the affective dimensions of teacher's sense of efficacy in using the methods of culturally responsive teaching. The achievement orientation of teaching efficacy mediates the use of culturally sensitive teaching practices. Accumulated teaching efficacy in using non-indigenous cultural practices interrupts the fractal interconnectedness of culturally responsive teaching practices. The chapter concludes with suggestions of future practices for facilitating the further development of culturally restorative teaching practices among educational professionals.