bluuebunny/crossref_metadata_2025 huggingface dataset:
Exploiting the volatility potential on the stock market
Authors: Baryshnikova N. .. , Ryazantseva L. ..
Published: March 2022

An overview of the ideas about the tools and indicators for measuring the variability, instability, fluctuation in time of stock market prices and their profitability is given (on the example of five socially significant banks), the need for their assessment is justified. It is concluded that in the conditions of the economic crisis, the assessment of the probability of income loss is highly relevant. Risk is the most important factor that should be taken into account when forming a securities portfolio. When selecting assets for a portfolio, an investor is faced with a choice: to what extent is an increase in the risk measure acceptable with an increase in profitability? There is a need for a comparative characteristic of the investment portfolio. One of the ways to reduce the volatility of the portfolio is to change its composition by replacing an asset with high volatility with an asset with low volatility, or better - with a risk-free asset. It is concluded that the β-coefficients are the simplest indicator of the degree of sensitivity of the yield of a stock or a portfolio of shares selected for purchase to the yield of a market portfolio of shares or the yield of a stock selected as a comparison base. The assessment obtained as a result of the application of financial analysis indicators allows the company's management and the investor to solve the problems of strategic choice, allows them to compare alternatives to the investment strategy and make a judgment on the appropriateness of the choice.
On the issues of ensuring the information security of the financial sector of the Russian Federation
Authors: Beloborodko A. . , Fadeikina N. .
Published: March 2022

The article is devoted to one of the most pressing problems of the modern digital economy - its information security. To a greater extent, this applies to the financial sector, which carries out electronic transactions and is actively looking for more efficient analogues of metal coins, paper banknotes, etc. The main reason for these problems is an acute shortage of specialists who possess modern information technologies and understand the essence of the ongoing changes associated with the digital transformation of economic processes. The ways of overcoming the personnel shortage and repelling cyber attacks in financial structures are considered.
L’Atelier aurignacien découvert à Bușag (Nord-Ouest de la Roumanie). Données préliminaires
Authors: Dobrescu Roxana , Doboş Adrian , Haită Constantin , Bobînă Ancuța , Bobînă Bogdan
Published: March 2022

Rescue excavations carried out on the Bușag Hill in 2019 (the Palaeolithic site had been identified and excavated by Maria Bitiri in the 1960s and 1970s) allowed for new stratigraphic observations required by a future re-evaluation of the chronology. While we still await for the OSL results on the samples collected from trench II and the microscopic analysis of raw materials, the present paper presents preliminary observations on the lithic material from the Aurignacian workshop uncovered in soundings V and VI, level D : a homogenous assemblage ; two operational chains oriented towards blade production, predominant blade production ; possible presence of flake production ; predominant hard percussion, careful debitage, a certain massiveness of the lithic assemblage ; raw materials brought to the site in their natural form or with little modification.
The shouldered points and the Gravettian of the Eastern Carpathian area: insights from Bistricioara-Lutărie III (Ceahlău Basin, Northeastern Romania
Authors: Niţă Loredana , Anghelinu Mircea , Cordoș Cristina
Published: March 2022

The Bistricioara-Lutărie III (BL III) Upper Paleolithic site belongs to the dense network of multilayered sites located along the Bistrița Valley, Eastern Romanian Carpathians. Its Gravettian layer with shouldered points (ca. 27 ka cal BP) opens a succession of Gravettian and Epigravettian cultural layers covering the entire timespan of the Last Glacial Maximum. The layer preserves a consistent lithic assemblage almost entirely knapped in allogenous Cretaceous flint, together with poorly preserved faunal remains and in situ habitation/ occupation features. Chronologically, this assemblage fits well within what was defined as a specific cultural package i. e., the shouldered points horizon, generally framed between 29 and 27 ka cal BP. This also seems to apply to several archaeological layers at other multi-layered sites in the region, located along the Bistrița (Poiana Cireșului, Buda, and Lespezi), Prut (Mitoc Malu Galben) and Dniester (Molodova V and Doroshivtsi III) river valleys. In this contribution, we aim at integrating the data provided by older and more recent investigations into a larger, common chronological and cultural framework, and discuss the validity of the shouldered points as Late Gravettian chrono-markers in the East Carpathian area.
Mesolithic Icoana revisited (II) – A reappraisal of the faunal remains
Authors: Bălășescu Adrian , Radu Valentin , Boroneanţ Adina , Bonsall Clive
Published: March 2022

Localizat în zona Porților de Fier în sud-vestul României, Icoana era unul dintre siturile preistorice inundate ca urmare a construcției barajului hidrocentralei Porțile de Fier I. În perioada 1967-1969 au fost cercetate 91m2 până la o adâncime de maxim 3m. Datele radiocarbon AMS indică pentru Icoana două perioade de locuire de scurtă durată, prima pe durata mezoliticului mijlociu (cca. 8500‒ 7600 cal BC și a două pe durata celui final (tranziția de la mezolitic/ neolitic timpuriu cca. 6200– 5900 cal BC). Articolul de față prezintă o re-evaluare a resturilor faunistice provenite din locuirea datată în mezoliticul mijlociu aflată în colecțiile Institutului de Arheologie ‘ Vasile Pârvan’.
Ground and abrasive stone tools from the Early Neolithic site of Bataševo (Serbia)
Authors: Антоновић Драгана , Dimić Vidan
Published: March 2022

Cercetările arheologice preventive de la Bataševo în centrul Serbiei au indicat prezența unui sit pluri-stratificat, cu urme de locuire pornind din neoliticul timpuriu până în epoca bronzului și apoi din perioada romană până în evul mediu. Cele mai importante descoperiri și informații atribuite neoliticului timpuriu provin din strada Makedosnka, secțiunile 2/ 06, 1/ 07 și 2/ 07, unde a fost descoperit un nivel neolitic timpuriu de 1– 1,5 m grosime. Materialul arheologic (piese de piatră, ceramică și obiecte de cult realizate din os, precum și resturi faunistice) și complexele și structurile de locuire sugerează că pe durata neoliticului timpuriu Bataševo era o așezare bine dezvoltată ai cărei locuitori se ocupau alături de creșterea animalelor și agricultură, și de producția de obiecte de piatră, os, ceramică etc. Piesele aparținând industriei pietrei șlefuite, împreună cu materiile prime folosite, modul de producere și de consum, repararea și reciclarea lor, oferă o imagine completă a tehnologiei neolitice timpurii și a modului de utilizare a uneltelor, asemănătoare cu cea observată în alte părți din zona de centru a Balcanilor. Singurele caracteristici remarcabile sunt gradul mare de fragmentare al uneltelor (observat și la Aria Babi, Porțile de Fier) și existența unor piese de piatră specializate pentru producerea uneltelor de piatră. Dată fiind aria relativ mică investigată până acum (35m2) nu putem vorbi despre specializarea producției pentru un anumit tip de piese, întrucât nu a fost descoperit nici un atelier.
The Neolithic bone industry from the site of Slatina–Paraćin (excavations of 1962–1985)
Authors: Vitezović Selena
Published: March 2022

Situl arheologic de la Slatina, în apropierea orașului Paraćin (Serbia), pe valea Moravei Mari este o așezare neolitică de mari dimensiuni, cu descoperiri bogate atribuite neoliticului târziu (cultura Vinča). Cercetări de salvare s-au defășurat între 1962 și 1964 și apoi în 1984– 1985, și au dus la descoperirea, pe lângă diverse și bogate complexe și materiale arheologice, a ca. 80 de piese atribuite industriei materiilor dure animale. Repertoriul tipologic include vârfuri, lustruitoare și astragale cu urme de utilizare, realizate din os și corn. Piesele sunt caracteristice culturii Vinča dar au și câteva caracteristici locale, mai ales în ceea ce privește managementul materiilor prime.
A first insight into the production of bone, antler and tooth objects at the Copper and Bronze Age site of Fulgeriş – La trei cireşi
Authors: Țerna Andreea , Istina Elena-Lăcrămioara
Published: March 2022

Săpăturile arheologice întreprinse în situl de la Fulgeriș– La trei cireşi între anii 2004– 2013 au furnizat și artefacte din materii dure animale : os, corn și defense de mistreț. Acestea provin atât din contexte eneolitice cât și din complexe datate în epoca bronzului. Scopul lucrării de față este de a oferi o primă caracterizare a procesului tehnologic de fabricare a obiectelor din MDA și de a realiza o clasificare a acestora utilizând criterii morfo-funcționale și tehnologice. Colecția este compusă în principal din unelte și poate fi observată o preferință clară în exploatarea osului în detrimentul defenselor de mistreț și al cornului. Întrucât colecția de artefacte eneolitice este mai mare, au putut fi identificate mai multe metode de transformare a blocului de materie primă : fracturarea, divizarea longitudinală în jumătăți și în sferturi, divizarea multiplă, secționarea transversală, spre deosebire de epoca bronzului, pentru care au fost identificate doar fracturarea și divizarea longitudinală. Cu câteva excepții, obiectele din MDA din situl de la Fulgeriș prezintă un nivel scăzut de elaborare tehnologică, în sensul în care forma finală a produselor a fost obținută în urma operațiunii de debitaj, fasonarea suporturilor fiind de cele mai multe ori superficială.
Deer antler mace-heads from the Late Bronze Age in Northeastern Romania
Authors: Diaconu Vasile , Kovacs Adela
Published: March 2022

În zona de nord-est a României, în județul Botoșani, au fost identificate în ultimele decenii câteva piese din corn de cerb de tip măciucă. Cele trei artefacte discutate în cadrul prezentului articol provin din așezări ale culturii Noua specifice bronzului târziu. Toate piesele au fost lucrate din segmente provenite de la baza coarnelor de cerb, fiind ulterior perforate. Pentru a înțelege modul de realizare a unor astfel de obiecte, au fost aduse în discuție și date de arheologie experimentală. În mediile culturale ale epocii bronzului găsim analogii foarte bune pentru exemplarele care fac obiectul studiului nostru. Din punct de vedere al semnificațiilor, piesele amintite puteau fi folosite ca arme, dar, cel mai probabil, aveau o semnificație socială.
Transparency of Composite Materials
Authors: Новак Н.В.
Published: March 2022

На формирование оптических свойств зуба существенное влияние оказывает светопроницаемость его твердых тканей. Эмаль и дентин способны частично пропускать световые лучи, при этом светопроводимость эмали выше, чем дентина.Цель исследования: изучение степени прозрачности светопроницаемых композиционных материалов, используемых при изготовлении эстетических реставраций для имитации прозрачности режущего края зуба.Материалы и методы. Для изучения степени прозрачности светопроницаемых композиционных материалов разных фирм-производителей из этих материалов были изготовлены диски толщиной 0,5 мм и 1,0 мм и изучена светопроницаемость.Результаты. Представлены результаты изучения степени прозрачности светопроницаемых композиционных материалов, используемых для имитации прозрачности режущего края при изготовлении эстетических реставраций зубов. Исследован коэффициент светопроницаемости композитов, проведена визуальная оценка светопроводимости пломбировочных материалов разных фирм, выполнена сравнительная визуальная оценка светопроницаемости прозрачных образцов фотополимеров разной толщины.Заключение. Показано, что чем толще слой светопроницаемого материала, тем больше его вклад в формирование оттенков цвета, слои разной толщины могут существенно преобразовывать оптические свойства, оказывая влияние на цвет и светопроницаемость изготовленной эстетической конструкции.

The transparency of its solid fabrics has significant effect on formation of optical properties of tooth. Enamel and dentine are capable to pass partially light beams, at the same time the transparency of enamel is higher, than dentine.Purpose of the study: studying of degree of transparency of the transparent composite materials used at production of esthetic restorations for imitation of transparency of a cutting edge of tooth. Materials and methods. For studying of degree of transparency of transparent composite materials of different manufacturing firms disks 0.5 mm and 1.0 mm thick were made of these materials and the transparency is studied.Results of studying of degree of transparency of the transparent composite materials used for imitation of transparency of a cutting edge at production of esthetic restorations of teeth are presented. The coefficient of transparency of composites is investigated, the visual assessment of atransparency of sealing materials of different firms is carried out, comparative visual assessment of a transparency of transparent samples of photopolymers of different thickness is executed.Conclusion. It is shown that the layer of transparent material is thicker, the more its contribution to formation of shades of color, layers of different thickness can significantly transform optical properties, having an impact on color and transparency of the made esthetic design.
Entre la complejidad y la Dialéctica de la naturaleza. Volviendo sobre los pasos de Engels
Authors:   Universidad Autónoma de Zacatecas, Foladori Guillermo
Published: March 2022

En 2020 se celebra el bicentenario del natalicio de Friedrich Engels, quien junto con Karl Marx, fundara las bases científicas de la crítica de la economía política, el proyecto de investigación científica más certero y perdurable para comprender la dinámica y contradicciones del modo de producción capitalista. El mundo científico de la actualidad está signado por un cambio de paradigma, que supera las rígidas relaciones causales, el equilibrio, la reversibilidad de los fenómenos y la ahistoricidad de las leyes físicas, para pasar hacia los terrenos de la complejidad, la irreversibilidad, la flecha del tiempo, el desequilibrio y la idea del orden a partir del caos. Existen puntos de encuentro entre la Dialéctica de la naturaleza de Engels y el nuevo paradigma científico. Una serie de conceptos están siendo sustituidos por otros que tienen relación con las interpretaciones dialécticas de la realidad natural. Los avances experimentales y la más rigurosa constatación de ciertos fenómenos suponen el derrumbe de la lógica formal y su reemplazo por una concepción más totalizadora, integrada y contradictoria.
La interfaz entre los estudios críticos del desarrollo y los estudios críticos agrarios
Authors:   Universidad Autónoma de Zacatecas, Veltmeyer Henry
Published: March 2022

Los estudios críticos del desarrollo conforman un campo académico interdisciplinario, emanado en la década de los 1980 de los estudios del desarrollo internacional, con un filón crítico que pretende superar la perspectiva de la reforma de políticas y el desarrollo institucional para centrarse en el sistema operativo subyacente: un modo de producción mercantil basado en la explotación del trabajo. Analizan el funcionamiento del sistema capitalista en diversos contextos temporales y espaciales, es decir, la compleja dinámica del desarrollo capitalista y el proceso asociado de transformación productiva y social. Tienen vasos comunicantes con los estudios críticos agrarios y las nuevas circunstancias del avance del capital extractivo. Ambos campos del pensamiento activista buscan un cambio sistémico transformador en vez de un mero desarrollo institucional. Conciben el «desarrollo» como un proceso, más que como un proyecto; es decir, como un complejo de dinámicas generadas por la evolución del sistema capitalista en el desarrollo de las fuerzas productivas, que genera condiciones objetivas sobre los individuos o los Estados nación, según su ubicación en el sistema, en la estructura de clases sociales o en la estructura centro-periferia del sistema capitalista mundial.
Dependencia, criminalidad y neoliberalismo. Claroscuros de la 4T en materia de seguridad
Authors:   Universidad Autónoma de Zacatecas, Vázquez Valdez Jorge Alejandro
Published: March 2022

La inseguridad pública vinculada a la violencia que ejercen los principales grupos de narcotraficantes activos en México representa uno de los mayores retos para la Cuarta Transformación planteada por el gobierno de Andrés Manuel López Obrador, tanto por los niveles delictivos que siguen desbordados, como porque la alternativa de su Plan Nacional de Desarrollo parte de un «cambio de paradigma» en materia de seguridad. Ese golpe de timón implica no sólo disminuir los ilícitos, sino actuar contra el esquema en el que la seguridad funge como coartada para la subordinación de México al proyecto hemisférico estadounidense, y en contra del esquema neoliberal que soporta un tinglado de privilegios y negocios para la valorización de capitales privados al amparo de la seguridad, ello incluso en escenarios tan sensibles como el del presidio.
Las ciudades ante los impactos de la covid-19: entre las prácticas usuales y la transformación urbana
Authors:   Universidad Nacional Autónoma de México, Delgado Ramos Gian Carlo
Published: March 2022

El futuro de las ciudades es complejo: por un lado, son las principales responsables de muchos de los impactos climático-ambientales y a la vez son espacios de oportunidad para la toma de medidas que permitan modificar las dinámicas tendenciales. En ese sentido, lo que se logre hacer en las ciudades será clave en cualquier intento que busque avanzar hacia escenarios más sustentables, resilientes, incluyentes y justos. Tal transformación urbana encuentra en la coyuntura de la pandemia covid-19 una oportunidad para acelerar e integrar esfuerzos, pues lo que no se ha movilizado hasta ahora podría darse a partir de la construcción de espacios de articulación novedosos y desde los cuales habrían de ser revisadas cuestiones diversas: desde la calidad, gestión y resiliencia de los servicios públicos, no sólo de salud, sino otros como agua y energía, hasta aspectos relacionados al propio diseño del espacio público y de las edificaciones, al abasto de alimentos, a la atención integral de emergencias y la prevención del riesgo, y sin duda alguna a la sustentabilidad urbana incluyente y justa. Su revisión a la luz de la pandemia covid-19, pero también de la crisis climática-ambiental imperante, puede derivar en transformaciones profundas y ciertamente necesarias. Al respecto, el presente trabajo analiza las bases materiales de la urbanización nacional actual y futura y sus implicaciones, al tiempo que revisa la necesidad de articular esfuerzos para la transformación urbana, ello particularmente de cara a las medidas de reactivación económica en tiempos de pandemia y pospandemia. Se concluye con una reflexión sobre los retos de corto y largo plazo en un contexto de «nueva normalidad», identificando algunas áreas de oportunidad y de tensión.
La 4T en cuarentena: los muertos que no importan en México
Authors:   Universidad Autónoma de Zacatecas, Márquez Covarrubias Humberto
Published: March 2022

La pandemia de covid-19 irrumpe en un escenario mundial preñado por la crisis capitalista, una secuela del quiebre de 2007-2008, y amplía la estela destructiva de capitales, trabajos, infraestructuras y formas de socialización, precisamente cuando las grandes potencias estaban enfrascadas en una sorda guerra comercial, los capitales entregados al órdago especulativo y los políticos alimentaban sus tramas de poder con variantes ideológicas neoliberales, populistas, nacionalistas y fascistas. En respuesta a la gran crisis se ofrecen soluciones de mercado y medidas de aislamiento, pero ante todo se implanta un nuevo arreglo espacio-temporal de acumulación montado en plataformas tecnológicas de la llamada industria 4.0 basada en grandes corporaciones digitales, industrias automatizadas y formas de trabajo precarizado. Ante esa complejidad capitalista, la calamitosa gestión del gobierno mexicano, que ha pasado del negacionismo a una política de contención suave, se ha desplazado por el mundo surrealista de la disputa por los «otros datos» para contrariar los hechos, el juego de sombras en la confrontación política y la minimización de los daños socioeconómicos. La prioridad es proteger el proyecto político del gobierno: ortodoxia macroeconómica, austeridad, militarismo, obras efectistas y asistencialismo. Como en sexenios anteriores, los resultados son fatales: la mortandad por la violencia criminal y la pandemia se ha catapultado, el trabajo se precariza y la pobreza se multiplica. Aunque la popularidad presidencial se sostiene, el espectro necrótico invade el cuerpo social.
INSTITUTIONS OF PROFESSIONAL ASSISTANCE TO FAMILIES WITH CHILDREN IN THE ESTIMATES OF THE VOLOGDA OBLAST POPULATION
Authors: Korolenko A.V.
Published: March 2022

The purpose of this article is the analysis of the attitude of the Vologda Oblast population with children toward the institutions of professional assistance to families with children, namely, to the services of psychologists and nannies. The information base was the results of the next stage of the sociological monitoring of the reproductive potential of the population of the Vologda Oblast, conducted by the Vologda Research Center of the Russian Academy of Sciences in 2021. The study found that despite the low prevalence of practices of applying for professional services of family psychologists and nannies among the population of the Vologda Oblast, the estimates of the assistance provided were quite high, which indicates the effectiveness of this kind of assistance for families with children. More than a quarter of respondents (27 %) expressed their willingness to seek the help of a psychologist, and almost every fifth respondent (19 %) expressed their willingness to seek the services of a professional nanny. The main reasons for refusing professional help are the unwillingness to take problems out of the family and the attitude to solve them independently. There are noticeable differences in the experience of applying for professional help from psychologists and nannies, in their assessments, readiness to receive such services and the reasons for refusing them, depending on the gender, age, marital status of respondents, their satisfaction with marriage, the number of children in their families, including the presence of minor children.
TEOG, LGS ve TIMSS Matematik Sorularının MATH Taksonomisine Göre İncelenmesi
Authors: PİŞKİN TUNÇ Mutlu , BAYDAR Osman
Published: March 2022

Bu çalışma sekizinci sınıf TEOG (Temel Eğitimden Ortaöğretime Geçiş), LGS (Liselere Geçiş Sistemi) ve TIMSS (The Trends in International Mathematics and Science Study) matematik sorularının MATH (Mathematical Assessment Task Hierarchy) taksonomi grup ve kategorilerine göre sınıflandırılması amacıyla yapılmıştır. Araştırma yöntemi olarak doküman analizi kullanılmıştır. Araştırmanın verileri 2015-2016 ve 2016-2017 eğitim öğretim yıllarında uygulanan TEOG sınavlarında sorulan 80 matematik sorusu, 2018 ve 2019 yılındaki LGS sınavında sorulan 40 matematik sorusu ve TIMSS-2011’de açıklanan 79, TIMSS-2015’te açıklanan 15 matematik sorusudur. Araştırma verilerini incelemek için MATH taksonomisi kodlama şeması ile yüzde ve frekans değerlerinin olduğu doküman inceleme matrisi kullanılmıştır. Çalışma sonucunda; MATH taksonomisine göre TEOG sınavlarında en fazla rutin işlemler (A3) kategorisinden soru sorulurken, üst düzey düşünme becerileri gerektiren B ve C gruplarından az sayıda soru sorulduğu ortaya çıkmıştır. LGS ve TIMSS sınavlarında B ve C gruplarına daha fazla yer verilmektedir. C grubu soruları yüzde olarak en fazla TIMSS sınavlarında bulunmaktadır.
Türkçe Öğrenenlerin Noktalama İşaretlerinin Kullanımı Konusundaki Yetkinlik Düzeyleri
Authors: MEMİŞ Muhammet , KANSIZOĞLU Hasan Basri
Published: March 2022

Bu araştırmanın amacı, Türkiye’de Türkçe öğrenen yabancı öğrencilerin noktalama işaretleri konusundaki yeterlik düzeylerini belirlemektir. Bu amaç doğrultusunda araştırma tarama modellerinden betimsel tarama modeli ile gerçekleştirilmiş olup çalışmanın verileri bu araştırma kapsamında geliştirilen Noktalama İşaretleri Başarı Testi aracılığıyla toplanmıştır. Araştırmanın örneklemi C1 sertifikasına sahip 96 kişiden oluşmaktadır. Araştırma sonunda, Türkçe öğrenenlerin, noktalama başarısı bakımından istenen seviyeden oldukça uzak oldukları, bazı noktalama işaretlerinin işlevlerini neredeyse hiç bilmedikleri ve ana dillerini okuyup yazmada kullandıkları alfabeye göre farklı düzeylerde noktalama başarısı elde ettikleri anlaşılmıştır. Araştırma sonuçlarından hareketle, son dönemde hazırlanan Türkçenin yabancı dil olarak öğretimi programlarının, noktalama işaretleriyle ilgili kazanımların eklenerek güncellenmesi; öğretim setlerine noktalama işaretlerinin öğretimine yönelik öğretim ve pekiştirme etkinliklerinin koyulması ve öğreticilerin temel seviyeden itibaren noktalama işaretleri konusunda öğrenenlere daha fazla geri dönüt vermesi önerilerinde bulunulmuştur
Geological Hazards in Tbilisi
Authors:   Georgian Technical University, Gaprindashvili Merab
Published: March 2022

Geological description of the capital of Georgia, Tbilisi, includes the history of its study, geological conditions, all statistical levels in the area and lithological composition with relevant graphic material. The tectonic, seismic, morphological and hydrogeological conditions of the study area are also presented. The main triggers/causes of geological hazards are presented in a separate subsection. The types of geological hazards (landslides, mudflows, rockfalls) spread within the territory of the capital are described in detail. The focus is on recent natural disasters that disrupted the normal rhythm of urban life, threatened the safe movement of traffic, deformed and destroyed many homes and infrastructure, and most regrettably caused loss of life. In the final chapter of the article, recommendations for protective measures are offered for each threat.
Transmission of Information by Non-genetic Mechanisms
Authors:   Georgian Technical University, Dadunashvili Sergo
Published: March 2022

Society is considered as a cooperative association of specialized communities of individuals. This new independent object of nature is a special form of collective, supra-individual existence of people, which, thanks to the mutually beneficial information connections of individuals, has all the attributes of a living system. In a supra-individual structure, a network effect occurs - when an impact or service becomes better, the more people use it. From the point of view of topology, the network consists of internal network structures and external ones connected with neighbors. The network may contain closed elements (cycles) and open elements (branches). Individuals functioning autonomously and providing primary data on their own functioning, as a result of cooperation or group symbiosis, create a new unique integral object, by exchanging available data, on the basis of a common cycle of relations between generators, converters, and receivers of information. The network communications infrastructure frees the participants in the communication cycle from the energy costs of searching for and obtaining information resources.
SISTEM PERINGATAN DINI DENGAN MULTI SENSOR BERBASIS ARDUINO UNTUK MONITORING RUANG SERVER
Authors: Halim Doni , Sakti Dolly Virgian Shaka Yudha
Published: March 2022

Salah satu tugas seorang admin server adalah memantau kondisi suhu dan kelembapan ruang server. Kemungkinan terjadinya kebakaran atau kenaikan suhu dan meningkatnya kelembapan pada server adalah hal yang perlu diwaspadai. Masalah yang terjadi adalah seorang admin tidak selalu berada di ruang server. Solusi yang dibuat pada penelitian ini adalah membuat sebuah system yang mampu memberikan peringatan dini saat masalah tersebut terjadi. Sistem dibuat berupa purwarupa menggunakan perangkat keras mikrokontroller Arduino Uno dengan didukung sensor DHT11, sensor MQ-2, sensor api, buzzer, relay serta modul Ethernet Shield. Purwarupa ini mempu mencatat kondisi ruang server setiap saat. Apabila terjadi kenaikan suhu ruangan maka AC akan hidup secara otomatis, jika kelembapan naik dan asap terdeteksi, exhaust akan hidup secara otomatis, jika api terdeteksi, buzzer akan berbunyi dan sistem akan mengirimkan pemberitahuan melalui E-mail
IMPLEMENTASI KEAMANAN DATA ARSITEKTUR MENGGUNAKAN ALGORITMA KRIPTOGRAFI DENGAN METODE RIVEST CODE (4 RC4)PADA PT.NAVIRI INDAH CEMERLANG
Authors: Rivaldi Ricky , Subandi Subandi
Published: March 2022

Keamanan dan kerahasiaan data merupakan aspek yang sangat penting dalam dunia informasi saat ini. Terlebih jika data yang disimpan  berisi informasi penting dan rahasia, dimana pihak luar tidak diperbolehkan untuk mengetahuinya. Namun di era teknologi informasi dan komunikasi yang semakin maju, semakin marak pula terjadinya pencurian data. Di PT.NAVIRI INDAH CEMERLANG tentu saja terdapat berbagai macam data berupa file  yang berisi informasi penting dan rahasia, untuk itu perlu adanya pengamanan agar tidak terjadi pencurian data oleh pihak yang tidak bertanggung  jawab . Dengan adanya pencurian data maka aspek keamanan dalam penyimpanan data menjadi sangat penting, karena data yang disimpan dalam keadaan asli (plain) sangat rentan terhadap pencurian data sehingga informasi yang ada didalamnya dapat bocor. Untuk mengatasi masalah diatas maka diperlukan suatu cara untuk mengamankan data. Dengan cara mengimplementasikan suatu metode yang dapat menjaga kerahasiaan informasi, menggunakan Metode kriptografi dengan algoritma Rivest Code 4 (RC4). Algoritma RC4 merupakan bagian dari algoritma simetris yaitu algoritma kriptografi yang mempunyai kunci (key). Disamping dari masalah keamanan file, masalah kecepatan dalam memproses enkripsi dan dekripsi juga harus diperhatikan, dalam membangun aplikasi kriptografi ini, penulis menggunakan Bahasa pemrograman Java. Aplikasi yang dibuat dapat memberikan keamanan terhadap file Di PT.NAVIRI INDAH CEMERLANG sehingga tetap terjaga kerahasiaannya.

Kata kunci : Kriptografi, RC4, Enkrip, Dekrip
CLINICOEPIDEMIOLOGICAL STUDY OF ORAL MUCOSAL LESIONS : A CROSS SECTIONAL STUDY AT TERTIARY CARE CENTRE IN HADOTI REGION, RAJASTHAN
Authors: Sharma Pritee , Kushwaha Ramesh Kumar , Nyati Asha , Mohta Alpana , Gautam Umesh , Singh Arti , Kumar Jain Suresh
Published: March 2022

Introduction: Oral mucosa provides a physical and immunological barrier to the outside world. Despite its anatomical and functional similarities
with skin, the mucosa of oral cavity is incredibly unique. Its distinct lining and the unique role of saliva and its biomarkers have been described in
the literature for diagnostic testing and disease monitoring. To study the clini Aims and objectives: coepidemiological prole of the patients
presenting with oral mucosal lesions, prevalence of oral lesions and clinical features of oral mucosal lesions in Dermatology patients. Materials
and Methods: It was an observational, cross-sectional study of patients who were present with oral lesions in Dermatology, venereology &
leprosy department of Govt. Medical college hospital Kota for a period of one year between July 2018 to June 2019. A total of 311 Results:
patients with oral lesions were encountered in our study. Prevalence of oral lesion in this study was 3.04%. In our study out of 311 patients,
161(51.77%) were male and 150(48.23%) were female with male to female ratio of 1.07:1. The oral lesions were most commonly observed in the
age group of 31-40 (22.18%) and mean age was 35.56 ±16.07 years. In our study 206 (66.24%) of the patients complained of symptomatic lesions
and 105(33.76%) the lesions were asymptomatic. LP was most common dermatosis with oral lesions in 79(25.40%) in papulosquamous category
followed by Pemphigus vulgaris in 58(18.65%) Vesiculobullous diseases (18.65%), DLE in 31(9.98%) autoimmune etiology and in
miscellaneous condition smokers melanosis was most common found in 7(2.25%) cases. In our study 167(53.70%) patients had only oral
manifestation and 144(46.30%) had oral and cutaneous manifestation. Mass health educati Conclusion: on programs need to be undertaken to
educate the population regarding oral health and care. Early diagnosis of the precancerous and cancerous conditions is the key factor for their
effective and timely management.
MANAGEMENT OF TURNER’S TOOTH
Authors: Talekar Shefali , Bhagwat Sumita
Published: March 2022

Management of Turner’s tooth using direct composite veneer. Enamel hypoplasia may be dened as an incomplete or deformative formation of the
organic enamel matrix of the teeth. Turner’s dysplasia or Turner’s tooth is a type of enamel hypoplasia caused due to local infection or trauma; the
incidence of this hypoplasia being 46.08% [1]. Hypoplasia results only if the injury occurs during the time the teeth are developing, formative stage
of enamel development. There is no treatment except of cosmetic appearance. Different treatment modalities such as crowns or veneers can be
attempted depending upon the degree of hypoplasia. The clinician needs a balanced treatment protocol to make a decision on a complete review of
the case. In the following paper, we present a clinical case report of aesthetic management of Turner’s tooth.
FIVE FACET MINDFULNESS AMONG UNDERGRADUATE STUDENTS
Authors: Sharma Shailja , Sharma Renu
Published: March 2022

Mindfulness exercises are the form of meditation exercises which include mindful- breathing, eating, listening, walking, body scan and
observation. If someone is fully aware of surroundings then one can easily control his thoughts and thus can avoid distractions and ultimately
enhance learning and increase one's attention. OBJECTIVES: To assess the ve facet mindfulness among the undergraduate students.
MATERIAL AND METHODS: A descriptive study was conducted at National Institute of Nursing Education, PGIMER, Chandigarh on
assessment of ve facet mindfulness among undergraduate students. Total enumeration sampling technique was used in this study. Total 88
undergraduate nursing students were taken. Data collection was done using Questionnaires which includes Socio demographic prole of students
and Fifteen Item Five Facet Mindfulness Questionnaire (FFMQ). RESULTS: Results were analyzed by using SPSS Version 21.0. The total mean
score of FFMQ was 43.70 showing that students have average Five Facet Mindfulness. In different facets of mindfulness students had 10.81 mean
score in observing items, 9.13 mean score in describing items, 6.96 mean score in acting with awareness, 9.90 mean score in non judging items and
9.51 mean score in non reactivity items. SUMMARY: It was concluded that students had an overall average ve facet mindfulness but needed to
improve in acting with awareness domain.
Powered Knee and Ankle Prosthesis with Adaptive Control Enables Climbing Stairs with Different Stair Heights, Cadences, and Gait Patterns
Authors: Hood Sarah , Gabert Lukas , Lenzi Tommaso
Published: March 2022

Powered prostheses can enable individuals with
above-knee amputations to ascend stairs step-over-step. To accomplish this
task, available stair ascent controllers impose a pre-defined joint impedance
behavior or follow a pre-programmed position trajectory. These control approaches
have proved successful in the laboratory. However, they are not robust to
changes in stair height or cadence, which is essential for real-world
ambulation. Here we present an adaptive stair ascent controller that enables
individuals with above-knee amputations to climb stairs of varying stair
heights at their preferred cadence and with their preferred gait pattern. We
found that modulating the prosthesis knee and ankle position as a function of the
user’s thigh in swing provides toe clearance for varying stair heights. In stance,
modulating the torque-angle relationship as a function of the prosthesis knee
position at foot contact provides sufficient torque assistance for climbing stairs
of different heights. Furthermore, the proposed controller enables individuals
to climb stairs at their preferred cadence and gait pattern, such as
step-by-step, step-over-step, and two-steps. The proposed adaptive stair controller
may improve the robustness of powered prostheses to environmental and human
variance, enabling powered prostheses to more easily move from the lab to the
real-world.
Concatenative Complete Complementary Code Division Multiple Access and its Fast Transform
Authors: Mizuyoshi Hikaru , han chenggao
Published: March 2022

Over multipath channels, \textit{complete complementary code division multiple access} (CC-CDMA) and \textit{convolutional spreading code division multiple access} (CS-CDMA) provide {\it inter-channel interference} (ICI) free transmission with an enhanced {\it spectral efficiency} (SE). However, the {\it convolutional spreading} (CS) operation of the systems is computationally complex and involves a high \textit{peak-to-average power ratio} (PAPR). Address such issues, we propose the \textit{concatenative complete complementary code division multiple access} (CCC-CDMA). Since the CCCCs can be generated from the rows of the Walsh-Hadamard or \textit{discrete Fourier transform} (DFT) matrices, the CS operation can be implemented using corresponding {\it fast transforms} (FTs) to reduce computational complexity. Simulation results shown that enlargement of {\it spreading factor} (SF) strengthens the robustness against clipping noise and the binary CCCC generated by Walsh-Hadamard matrix has excellent robustness against Doppler frequency shifts.
Deep Color Consistent Network for Low-Light Image Enhancement
Authors: Zhang Zhao , Zheng Huan , Hong Richang , Xu Mingliang , Yan Shuicheng , Wang Meng
Published: March 2022

Please cite this work as follows:

Zhao Zhang* Huan Zheng, Richang Hong, Mingliang Xu, Shuicheng Yan and Meng Wang, "Deep Color Consistent Network for Low-Light Image Enhancement," In: Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR), 2022.
Mnist Redesign for Object Detection
Authors: Wei Jinxin , Hou Zhe
Published: March 2022

Inspired by my another paper[3], neural network can detect location and size,so it can do object detection task. I redesign the mnist dataset, to produce different location and different size. Through test on new mnist dataset, the rectangle of number is all right both on absolute function and relu function. The classification accuracy is 97%-98%, the accuracy of location of rectangle is 99%-100%. It is easy for location task than for classification task. It is easy to distinguish black and white for one object, but RGB picture is harder to distinguish. Because the role of neural network is like a function. The location task can achieved by neural network as long as the problem can be expressed by a function. The task can be done as long as there is enough data and enough network complexity. The whole task is suit to study object detection.When we use lidar, the picture we got is like the gray picture listed before, we just to classify and locate the way we can drive through, so one object should be classified and located, the accuracy is high.
Exploring the behavioural spectrum with efficiency vs. fairness goals in Multi-Agent Reinforcement Learning
Authors: Silva Margarida , Kokkinogenis Zafeiris , Pitt Jeremy , Rossetti Rosaldo
Published: March 2022

The concept of fairness has been studied in philosophy and economics for thousands of years, so human actors in social systems have had plenty of time to ``learn'' what does, and does not, work. Yet, only recently. However, it is a relatively new question how software agents in a multi-agent system can use Reinforcement Learning models to develop an architecture that promotes equality or equity in the distribution of rewards to the agents within the system. Recent significant contributions have focused on optimising for efficiency based on the assumption that efficiency and fairness are opposites to be traded off against each other, but actually, the result of mixing fair and efficient policies is unknown in multi-agent reinforcement learning settings. In this work, we experiment with fair and efficient behaviours jointly, based on an extension of the state-of-the-art model in fairness SOTO that intertwines efficient and equitable recommendations. We analyse the fair versus efficient behavioural spectrum in the Matthew Effect and Traffic Light Control problems, finding some solutions that outperform the baseline SOTO and others that outperform a selfish baseline with comparable architectural design. We conclude it is possible to optimise for fairness and efficiency and this is important when computation of the reward distribution has to be paid for from the rewards themselves.
Use of Carry Chain Logic and Design System Extensions to Construct Significantly Faster and Larger Single-Stage N-sorters and N-filters
Authors: Kent Robert
Published: March 2022

We have recently introduced a general system for building fast single-stage hardware N-sorters and N-filters, with N?3. When N-sorter/N-filters designed with this system are constructed using a design logic block in the FPGA central to the Amazon AWS EC2 F1 instance, they were shown to be significantly faster than the prior state-of-the-art sorting devices, which are networks of 2-sorters and 2-filters. Here we show that N-sorter/N-filters are even faster when they are implemented using carry chain design logic blocks, featuring lookahead acceleration and dedicated routing, also found in the same FPGA product. A new 32-bit carry chain 7-sorter operates in 1.469 nS, a speedup of 1.23 versus our original state-of-the-art 7-sorter. Faster and larger N-sorters and much larger N-max/N-min filters are constructed when product term splitting and a new Sum-of-Products output multiplexer equation are added to the general design system, and then combined with carry chain logic. While we were previously limited to sorting 10 or fewer input values, we now fully sort 16 32-bit values in 2.024 nS, a speedup of 4.61 versus a comparable 2-sorter network. Our largest prior max pooling 32-bit N-max filter was a 9-max 3x3 2D image filter, but we have now produced a 125-max 5x5x5 3D video filter that operates in 2.075 nS, a speedup of 3.43 versus a 2-max network. Using 32-max single-stage filters, a 32-bit 1024-max 2-stage network operates in 3.557 nS, less than a 280 MHz clock’s period, and with a 2.85 speedup versus the equivalent 10-stage 2-max network.
A New Virtual Oscillator based Grid-forming Controller with Decoupled Control Over Individual Phases and Improved Performance in Presence of Unbalanced Fault Ride-through
Authors: Ghosh Ritwik , Tummuru Narsa Reddy , Rajpurohit Bharat Singh
Published: March 2022

Virtual Oscillator (VO) control is the latest and promising control technique for grid-forming and grid-supporting inverters. VO Controllers (VOCs) provide time-domain synchronization with a connected electrical network. At the same time, a VOC can incorporate additional nested control loops for meets the system-level requirements such as fault ride-through capability. However, existing VOCs have two limitations. Firstly, the existing VOC does not have decoupled control over individual phases. As a result, the performance of the existing VOC is not satisfactory in presence of unbalanced grid voltages. Secondly, the fault ride-through performance of the existing VOC under an unbalanced fault is not satisfactory. The power delivery at a healthy phase gets affected by the faulty phase. This paper has introduced a modified VO based system-level controller to overcome the limitations mentioned above. Systematic development of the proposed control architecture with analytical reasoning is presented. Simulation studies and hardware experiments are conducted for validation.
Quantized and Simulated Max-min Fairness in Blockchain Ecosystems
Authors: Metin Serdar , Özturan Can
Published: March 2022

In this study we develop fair faucets for blockchain systems.
Post-Disaster Communications: Enabling Technologies, Architectures, and Open Challenges
Authors: Matracia Maurilio , Saeed Nasir , kishk mustafa , Alouini Mohamed-Slim
Published: March 2022

The number of disasters has increased over the past decade where these calamities significantly affect the functionality of communication networks. In the context of 6G, airborne and spaceborne networks offer hope in disaster recovery to serve the underserved and to be resilient in calamities. Therefore, this paper surveys the state-of-the-art literature on post-disaster wireless communication networks and provides insights for the future establishment of such networks. In particular, we first give an overview of the works investigating the general procedures and strategies for counteracting any large-scale disasters. Then, we present the possible technological solutions for post-disaster communications, such as the recovery of the terrestrial infrastructure, installing aerial networks, and using spaceborne networks. Afterward, we shed light on the technological aspects of post-disaster networks, primarily the physical and networking issues. We present the literature on channel modeling, coverage and capacity, radio resource management, localization, and energy efficiency in the physical layer and discuss the integrated space-air-ground architectures, routing, delay-tolerant/software-defined networks, and edge computing in the networking layer. This paper also presents interesting simulation results which can provide practical guidelines about the deployment of ad hoc network architectures in emergency scenarios.
Finally, we present several promising research directions, namely backhauling, placement optimization of aerial base stations, and the mobility-related aspects that come into play when deploying aerial networks, such as planning their trajectories and the consequent handovers.
CNN-based Salient Object Detection on Hyperspectral Images using Extended Morphology
Authors: Chhapariya Koushikey , Buddhiraju Krishna Mohan , Kumar Anil
Published: March 2022

Salient object detection in hyperspectral images is of interest in various image processing and computer vision applications. Many studies considering spectral information have been developed, extracting only low-level features from a hyperspectral image. In this paper, a CNN-based salient object detection method in hyperspectral imagery data is proposed to simultaneously exploit spatial and spectral information.

The proposed methodology incorporates Extended Morphology (EMP) followed by a CNN to utilize the information from nearby pixels and high-level features simultaneously. We have evaluated the performance of the proposed approach on two independent datasets to verify the generalization ability, viz. 1) Hyperspectral Salient Object Detection Dataset (HS-SOD) and 2) Pavia University dataset. An extensive quantitative analysis of the results revealed that the proposed method significantly outperforms other state-of-the-art methods by approximately > 2% of AUC and F-measure and lower mean absolute error for both the datasets.