bluuebunny/crossref_metadata_2025_split huggingface dataset:
Fundamental design parameters of two-component optical systems: theoretical analysis
Authors: Mikš Antonín , Pokorný Petr 
Published: January 2020

The paper presents a detailed theoretical analysis of two-component optical systems of Petzval objective, tele-objectives, reverse tele-objectives, and objectives of anallactic type. This type of optical system is popular in practice, especially in the field of photographic technologies and surveying devices (theodolites, levelling devices, etc.), where anallactic telescopes with inner focusing are used. The paper presents methods of designing of fundamental parameters of the objective, i.e., focal distances of the objective’s components and their mutual distance, and radii of curvatures of individual surfaces if the components are cemented doublets. Further, a detailed analysis of aberration properties of those optical systems is presented.
Temporal and spectral coding over amplified spontaneous emission for secure optical coherent communications
Authors: Huang Yetian , Chen Haoshuo , Huang Hanzi , Fontaine Nicolas K. , Ryf Roland , Song Yingxiong , Wang Min 
Published: January 2020

We demonstrate secure optical coherent communications employing low-coherence matched detection based on the randomness of amplified spontaneous emission (ASE) noise. Two-level physical-layer optical encryption is achieved through temporal and spectral coding over a broadband ASE source. An ASE-carried signal and unmodulated carrier are polarization multiplexed, transmitted over a same single-mode fiber (SMF), and separated with the aid of polarization tracking before having matched detection at the receiving side. The impact of chromatic dispersion on the low-coherence matched detection system is analyzed and experimentally investigated. We experimentally realize optically coded 20 Gbaud QPSK and 8-PSK signals transmission over a 43 km SMF span with a maximum line rate of 60 Gbits/s.
Continuous-wave operation of DFB laser diodes based on GaN using 10$^{\rm th}$th-order laterally coupled surface gratings
Authors: Kang Ji Hye , Wenzel Hans , Freier Erik , Hoffmann Veit , Brox Olaf , Fricke Jörg , Sulmoni Luca , Matalla Mathias , Stölmacker Christoph , Kneissl Michael , Weyers Markus , Einfeldt Sven 
Published: January 2020

Single longitudinal mode continuous-wave operation of distributed-feedback (DFB) laser diodes based on GaN is demonstrated using laterally coupled 10th-order surface Bragg gratings. The gratings consist of V-shaped grooves alongside a 1.5 µm wide p-contact stripe fabricated by using electron-beam lithography and plasma etching. By varying the period of the Bragg grating, the lasing wavelength could be adjusted between 404.8 and 408.5 nm. The feasibility of this device concept was confirmed by mode-hop-free operation up to an optical output power of 90 mW, a low temperature sensitivity of the lasing wavelength, and a Gaussian lateral far-field distribution.
The Evaluation of Students’ Prosocial Behavior On Primary Education Level
Authors: Setiawati Esti , Ernawati Ika 
Published: January 2020

This study aims to evaluate the prosocial behavior of elementary school level students, especially State Junior High School students in Bantul Regency. This research is evaluation research with a quantitative descriptive approach with the CIPP (Context, Input, Process, and Product) model. The research subjects were 131 students of Bantul Regency Public Middle School. Data collection through the questionnaire, interviews, observation, and documentation methods. The results of this study indicate that in general the prosocial behavior of students in Bantul Regency State Junior High Schools was included in the quite good category. The results of this study also showed that the strengthening of the prosocial behavior of state junior high school students in the Bantul Regency was good enough as outlined in the school development program planning document and school activity plan
Inclusion Education: Learning Reading Arabic Language And Alquran For Blind
Authors: Rubini Rubini , Setyawan Cahya Edi 
Published: January 2020

Inclusive education is one of the priorities that must be considered for the sake of equality in educating the nation. Inclusive education is contained in the form of learning towards a group of people with special needs. Special needs in Indonesia are mostly those who have physical disabilities, one of the blind. This study aims to determine how the stages of learning to read Arabic letters and the Qur'an for the blind. This type of research is library research, with the method of collecting data, searching, analyzing, and synthesizing the latest research. The results of the study stages of learning to read Arabic letters and the Qur'an for the blind are: memorize Arabic Braille numeric codes from Alif أ to Ya ي, memorizing Arabic punctuation, practice fingering Braille hijaiyah letters and Arabic punctuation, IQRA reading practice starting from words to simple sentences, and practice reading the Koran which starts from short letters to long letters.
Концептуализация социальной онтологии постгуманизма: социологические импликации
Authors: Катерный Илья Владимирович 
Published: January 2020

В XXI веке радикальные социальные метаморфозы на стыке рефлексивной модернизации и технологической революции ведут к изменению базовых онтологических и аксиологических констант человеческого развития и конституированию новой исторической ситуации, известной под названием «постгуманизм» (К. Вольф, Р. Брайдотти и др.). Такие социальные явления, как трансенция, десекьюритизация, морфологическая свобода, плоская онтология и др., рассмотренные в статье, трактуются как основания для переосмысления базовых категорий гуманизма и социологии как части гуманитарного проекта. Постгуманизм конституируется вокруг трех основных метаморфоз: (а) изменений биологической природы человека и его социальной идентичности, (б) качественных сдвигов в природе человеческого общества и (в) трансформаций в природе социальных и биосоциальных процессов. Важнейшей стороной постгуманизма с социологической точки зрения является то, что он элиминирует примордиальные аскриптивные различения между «мужским» и «женским», «человеческим» и «нечеловеческим», «естественным и искусственным», «физическим и нефизическим», выводя на авансцену постчеловеческие номадические агентивы, включающие в себя человеческие палимпсесты, цифровые эпистемические объекты, андроиды, искусственный интеллект, животные и эмбрионы, клоны, природные явления и физические объекты. На основе понятия диспозитива М. Фуко автор анализирует некоторые социальные последствия четвертой индустриальной революции, включая цифровизацию и развитие робототехники как примеры постгуманизации человека и общества. Смещая витрувианского человека с пьедестала эволюции, постгуманизм раздвигает границы социальности до предела, превращая социальное в единственную реальность и делая социологию фундаментальной наукой. В конце статьи ставится вопрос о необходимости осмысления морально-этических сторон постгуманизма. Для этого автор апеллирует к коммуникативной этике дискурса (К.-О. Апель) и классическому идеалу хорошо информированного гражданина (А. Шюц).
Жизненный успех молодежи — от Москвы до самых до окраин
Authors: Седова Наталья Николаевна 
Published: January 2020

В статье анализируются модели жизненного успеха, жизненных целей и стратегий российской молодежи, видения инструментов и препятствий для достижения успеха, наличия и характера действия механизмов социальной мобильности, в том числе в разрезе «Москва — регионы». Анализ проведен в сопоставлении представлений молодежи и людей среднего возраста. Эмпирическая база исследования — материалы исследований жизненных установок россиян, проведенных Институтом социологии ФНИСЦ РАН в 2017 и 2018 гг. Метод сбора данных — фокусированные групповые дискуссии, локации исследования — Москва, Волгоград, Воронеж, Барнаул, села Ярославской области.
Сделан вывод, что в основе модели жизненного успеха российской молодежи лежит (1) материальный достаток и стабильность, от которых отстраивается целый спектр сценариев жизненного успеха; (2) достижение поставленных целей, отражающее стремление молодежи быть субъектом, а не объектом собственного жизненного сценария; (3) гармоничное сочетание работы как основного источника дохода и возможностей для самореализации, саморазвития. Выделены три типа базовых жизненных стратегий российской молодежи: «Быть готовым ко всему» (предполагает отсутствие видения будущего; установки на способность изменяться вместе с ситуацией, на максимально широкий репертуар возможностей в виде знаний, компетенций, связей); «Профессиональная реализация» (подразумевает стремление стать лучшим в своем деле, чтобы обеспечить будущее); «Смена места жительства» (предполагает переезд в крупный мегаполис, другой город). В отношении среднесрочных жизненных целей молодежи показан низкий уровень рефлексии, краткосрочный характер планирования, ограниченность сферой работы. Основные препятствия в достижении жизненного успеха зафиксированы в господствующих практиках кумовства, ограничивающих доступ к профессиональным лифтам, сужении рынка труда в результате неблагоприятной экономической ситуации, отсутствии возможностей для получения первичного опыта работы, стартового финансового капитала, постоянно меняющихся правилах игры.
Показаны различия в понимании жизненного успеха и в оценках возможностей для его достижения между молодежью Москвы и регионов. Данное обстоятельство трактуется как долгосрочный тренд, углубляющий социальную дифференциацию групп молодежи «Москва» и «не Москва» по экономическим, социальным и культурным основаниям.
Aktivitas Antagonis Bakteri yang Berasosiasi dengan Teritip (Balanus sp.) terhadap Bakteri Escherichia coli dan Bacillus cereus
Authors: Wismayanti Gita , Sedjati Sri , Trianto Agus 
Published: January 2020

Marine invertebrates are the most productive source of bioactive compounds. However, most of the compounds originally produced by the microorganisms living associated with the invertebrates. Barnacle is an invertebrate that has a unique interaction with bacteria. Escherichia coli and Bacillus cereus are the cause of the foodborne disease that causes of remarkedly losses in the food industry. The barnacle was collected from Panjang Island, Jepara. The bacterial isolates were obtained by serial dilution followed by isolation based on morphological characteristics. The antagonistic assay to E. coli dan B. cereus was utilized for screened the isolates. Then, the active isolates were cultured for the further test with the disc diffusion agar method of the supernatant followed by the extracts. The most active isolates were identified based on molecular method. A total of 14 isolates were obtained from the Balanus sp., which six of them have activity against the E. coli and B. cereus. The isolates TJ 5.4 and TJ 5.5 have the strongest activity the bacteria. Base on the analyses of the BLAST and phylogenetic tree the isolates showed 99% homology the Bacillus wiedmannii (TJ 5.4) and Lysinibacillus macroides (TJ 5.5). Invertebrata laut merupakan salah satu sumber bahan bioaktif yang paling produktif. Sebagian senyawa yang terdapat dalam biota laut, sejatinya diproduksi oleh mikroorganisme yang hidup berasosiasi dengan biota laut tersebut. Teritip merupakan salah satu hewan invertebrata yang memiliki berbagai interaksi unik dengan bakteri. Bakteri Escherichia coli dan Bacillus cereus merupakan dua dari beberapa bakteri patogen yang sering menjadi agen penyebab foodborne disease. Teritip dikoleksi dari Pulau Panjang, Jepara. Isolat bakteri diperoleh dengan metoda pengenceran bertingkat dan dilanjutkan isolasi berdasarkan karakteristik morfologis. Uji antagonis terhadap E. coli dan B. cereus digunakan untuk menskrining bioaktivitas isolat. Isolat yang aktif dikultur untuk uji lanjut yaitu supernatant dan dilanjutkan ekstraknya dengan metoda disc diffusion agar. Bakteri yang paling aktif diidentifikasi secara molekuler untuk mengetahui spesiesnya. Sebanyak 14 isolat bakteri diperoleh dari Balanus sp. dimana enam diantaranya memiliki aktivitas terhadap bakteri uji. Isolat TJ 5.4 dan TJ 5.5 memiliki aktivitas paling kuat terhadap E. coli dan B. cereus. Berdasarkan pengolahan sekuen dan analisis pohon filogenetik, dua isolat bakteri tersebut memiliki homologi 99% terhadap bakteri Bacillus wiedmannii (TJ 5.4) dan Lysinibacillus macroides (TJ 5.5).
Pertumbuhan dan Kelangsungan Hidup Larva Plectropomus leopardus Lacepède, 1802 (Actinopterygii:Serranidae) dengan Waktu Awal Pemberian Pakan Buatan Berbeda
Authors: Melianawati Regina , Astuti Ni Wayan Widya 
Published: January 2020

Coral trout larvae in hatchery were given artificial feed, besides live feeds. However, the right time for feeding artificial feed is still unknown. Therefore, the purpose of this is study was to determine the differences initial time of feeding artificial feed on the growth of coral trout larvae. The treatment tested was feeding artificial feed to larvae started at 8 (A) and 15 (B) days old. The study was replicated three times. The observed biological variables was including total length, length of dorsal and pelvic fin and number of rotifers in larval digestive tract. The results showed that on 30 days old, total length of larvae A llonger (13.36 ± 2.05 mm) than larvae B (12.13 ± 2.11 mm) (P>0.05). The dorsal fin and pelvic fin of larvae A tended were longer (7.33 ± 0.68 mm and 5.38 ± 0.45 mm) than larvae B (6.23 ± 1.58 mm and 5.29 ± 0.81 mm) (P> 0.05). On 20 days old, larvae A tended to consume more rotifers (32.60 ± 21.53 individuals) than larvae B (27.40 ± 11.19 individuals) (P> 0.05). There was more juveniles produced from treatment A (79%) compared to treatment B (21%). Based on this study, feeding artificial feed started from 8 days old take effect to greater growth and survival rate of coral trout larvae. Therefore, the initial time of feeding artificial feed for coral trout larvae should be done started at 8 days old. Larva ikan kerapu sunu dalam pembenihan di panti benih, diberi pakan buatan, disamping pakan alami sebagai pakan awalnya. Namun, hingga saat ini belum diketahui waktu yang tepat untuk pemberian pakan buatan tersebut. Oleh karenanya, penelitian ini bertujuan untuk mengetahui perbedaan waktu awal pemberian pakan buatan terhadap pertumbuhan larva ikan kerapu sunu. Perlakuan yang diujikan adalah perbedaan waktu awal pemberian pakan buatan, yaitu mulai larva umur 8 hari (A) dan mulai larva umur 15 hari (B). Penelitian dilakukan sebanyak tiga kali ulangan waktu. Peubah yang diamati meliputi panjang total, panjang duri sirip punggung dan duri sirip perut, jumlah rotifer dan telurnya dalam pencernaan larva serta kelangsungan hidup. Hasil penelitian menunjukkan bahwa pada umur 30 hari larva A memiliki panjang total yang cenderung lebih besar (13,36±2,05 mm) dibandingkan pada larva B (12,13±2,11 mm) (P>0,05). Duri sirip punggung dan duri sirip perut larva A lebih panjang (7,33±0,68 mm dan 5,38±0,45 mm) dibandingkan larva B (6,23±1,58 mm dan 5,29±0,81 mm) (P>0,05). Larva A umur 20 hari cenderung mengkonsumsi rotifer lebih banyak (32,60±21,53 individu) dibandingkan larva B (27,40±11,19 individu) (P>0,05). Juvenil yang dihasilkan dari perlakuan A lebih banyak (79%) dibandingkan dari perlakuan B (21%). Berdasarkan hasil penelitian ini, pemberian pakan buatan mulai umur 8 hari berpengaruh terhadap pertumbuhan dan kelangsungan hidup larva ikan kerapu sunu yang cenderung lebih besar. Oleh karenanya, pemberian pakan buatan bagi larva ikan kerapu sunu sebaiknya dilakukan mulai umur 8 hari.
User-Centered Development of Smart Glasses Support for Skills Training in Nursing Education
Authors: Kopetz Jan Patrick , Wessel Daniel , Jochems Nicole 
Published: January 2020

Abstract
An ageing society creates an increasing need for a well-trained nursing staff. In particular, physically demanding motion sequences must be learned correctly to preserve carers’ long-term health. During training, support in practical skills training must also leave the carers’ hands free to allow them to perform the motion sequences unencumbered. Wearables might provide the necessary information “hands-free” and thus support skills training. In this paper, we present and discuss a User-Centered Design approach conducted with nursing students to determine the suitability of smart glasses support for skills training in nursing education. This User-Centered Design process consisted of a survey, two design thinking workshops, and a summative evaluation of a high-fidelity prototype. The developed smart glasses application was well evaluated and is usable for training purposes.
Two by two squares in set partitions
Authors: Archibald Margaret , Blecher Aubrey , Brennan Charlotte , Knopfmacher Arnold , Mansour Toufik 
Published: January 2020

AbstractA partition π of a set S is a collection B1, B2, …, Bk of non-empty disjoint subsets, alled blocks, of S such that $\begin{array}{}
\displaystyle
\bigcup _{i=1}^kB_i=S.
\end{array}$ We assume that B1, B2, …, Bk are listed in canonical order; that is in increasing order of their minimal elements; so min B1 < min B2 < ⋯ < min Bk. A partition into k blocks can be represented by a word π = π1π2⋯πn, where for 1 ≤ j ≤ n, πj ∈ [k] and $\begin{array}{}
\displaystyle
\bigcup _{i=1}^n \{\pi_i\}=[k],
\end{array}$ and πj indicates that j ∈ Bπj. The canonical representations of all set partitions of [n] are precisely the words π = π1π2⋯πn such that π1 = 1, and if i < j then the first occurrence of the letter i precedes the first occurrence of j. Such words are known as restricted growth functions. In this paper we find the number of squares of side two in the bargraph representation of the restricted growth functions of set partitions of [n]. These squares can overlap and their bases are not necessarily on the x-axis. We determine the generating function P(x, y, q) for the number of set partitions of [n] with exactly k blocks according to the number of squares of size two. From this we derive exact and asymptotic formulae for the mean number of two by two squares over all set partitions of [n].
Identifying quantum logics by numerical events
Authors: Dorninger Dietmar 
Published: January 2020

AbstractLetSbe a set of states of a physical system and letp(s) be the probability of an occurrence of an event when the system is in the states∈S. The functionpfromSto [0, 1] is called a numerical event, multidimensional probability or, alternatively,S-probability. Given a set of numerical events which has been obtained by measurements and not supposing any knowledge of the logical structure of the events that appear in the physical system, the question arises which kind of logic is inherent to the system under consideration. In particular, does one deal with a classical situation or a quantum one?In this survey several answers are presented. Starting by associating sets of numerical events to quantum logics we study structures that arise whenS-probabilities are partially ordered by the order of functions and characterize those structures which indicate that one deals with a classical system. In particular, sequences of numerical events are considered that give rise to Bell-like inequalities. At the center of all studies there are so called algebras ofS-probabilities, subsets of these and their generalizations. A crucial feature of these structures is that order theoretic properties can be expressed by the addition and subtraction of real functions entailing simplified algorithmic procedures.The study of numerical events and algebras ofS-probabilities goes back to a cooperation of E. G. Beltrametti and M. J. Mączyński in 1991 and has since then resulted in a series of subsequent papers of physical interest the main results of which will be commented on and put in an appropriate context.
Remarks on b-metrics, ultrametrics, and metric-preserving functions
Authors: Samphavat Suchat , Khemaratchatakumthorn Tammatada , Pongsriiam Prapanpong 
Published: January 2020

AbstractWe introduce new classes of functions related to metric-preserving functions, b-metrics, and ultrametrics. We investigate their properties and compare them to those of metric-preserving functions.
Eigenvalue problems for a class of nonlinear Hadamard fractional differential equations with p-Laplacian operator
Authors: Yang Wengui 
Published: January 2020

AbstractThis paper is concerned with the existence and nonexistence of positive solutions for the eigenvalue problems of nonlinear Hadamard fractional differential equations withp-Laplacian operator. By applying the properties of the Green function and Guo-Krasnosel’skii fixed point theorem on cones, some existence and nonexistence results of positive solutions are obtained based on different eigenvalue intervals. Finally, some examples are presented to demonstrate the feasibility of our main results.
Yamabe soliton and quasi Yamabe soliton on Kenmotsu manifold
Authors: Ghosh Amalendu 
Published: January 2020

AbstractIn this paper, we study Yamabe soliton and quasi Yamabe soliton on Kenmotsu manifold. First, we prove that if a Kenmotsu metric is a Yamabe soliton, then it has constant scalar curvature. Examples has been provided on a larger class of almost Kenmotsu manifolds, known asβ-Kenmotsu manifold. Next, we study quasi Yamabe soliton on a complete Kenmotsu manifoldMand proved that it has warped product structure with constant scalar curvature in a region Σ where ∣Df∣ ≠ 0.
On 4-th root metrics of isotropic scalar curvature
Authors: Tayebi Akbar 
Published: January 2020

AbstractIn this paper, we prove that every non-Riemannian 4-th root metric of isotropic scalar curvature has vanishing scalar curvature. Then, we show that every 4-th root metric of weakly isotropic flag curvature has vanishing scalar curvature. Finally, we find the necessary and sufficient condition under which the conformal change of a 4-th root metric is of isotropic scalar curvature.
Porosity of 𝓢-approximately continuous functions
Authors: Ivanova Gertruda , Wiertelak Renata 
Published: January 2020

AbstractConsidering the natural topology or 𝓢-density topology on the domain and on the range we obtain different families of continuous functionsf: ℝ → ℝ. In this paper we compare these families in porosity terms. In particular, we obtain strengthening of some recent results by J. Hejduk, A. Loranty, R. Wiertelak.
On a modified Burr XII distribution having flexible hazard rate shapes
Authors: Jamal Farrukh , Chesneau Christophe , Nasir M. Arslan , Saboor Abdus , Altun Emrah , Khan M. Azam 
Published: January 2020

AbstractIn this paper, we propose a new three-parameter modified Burr XII distribution based on the standard Burr XII distribution and the composition technique developed by [14]. Among others, we show that this technique has the ability to significantly increase the flexibility of the former Burr XII distribution, with respect to the density and hazard rate shapes. Also, complementary theoretical aspects are studied as shapes, asymptotes, quantiles, useful expansion, moments, skewness, kurtosis, incomplete moments, moments generating function, stochastic ordering, reliability parameter and order statistics. Then, a Monte Carlo simulation study is carried out to assess the performance of the maximum likelihood estimates of the modified Burr XII model parameters. Finally, three applications to real-life data sets are presented, with models comparisons. The results are favorable for the new modified Burr XII model.