bluuebunny/crossref_metadata_2025 huggingface dataset:
Healthcare Reform Needs Change in Mindset along with Innovation
Authors:   Master’s degree in Business Analytics, Grand Canyon University, USA, Deshmukh Santosh S
Published: April 2024

Various sectors have shown tremendous progress in the United States, driven by technological advancements, consumer demand, regulatory changes, and innovation. The healthcare sector has made significant strides in precision medicine, telehealth, and biotechnology, including breakthroughs in genomic sequencing and CRISPR technology. The COVID-19 pandemic accelerated the adoption of telehealth services and highlighted the importance of biotechnology in developing vaccines and treatments. However, healthcare delivery is still the biggest challenge and there is less or inconsistent improvement in the quality of the healthcare. Health care is not only a scientific and social issue; it is an economic and political issue as well [1-4]. Despite consistent efforts, policy changes, and reform models, healthcare quality is an unsolved puzzle. It’s a vicious circle and hard to break unless a fresh outlook has not been taken. The healthcare cost is the biggest factor adding fuel to healthcare access and quality. At the same time, Healthcare is not as easy as other sectors which have some finite and tangible aspects. Healthcare deals with the most vulnerable aspects of human existence: birth, death, suffering, uncertainty in the face of disease, evolving human conditions, environmental changes, disease variants, and their biological responses [4]. This paper will focus on reforming the healthcare sentiments to “achieve higher quality with less cost”, and this can only be possible by changing our mindset.
ДУНЁ ДИНЛАРИ ВА ТАЪЛИМОТЛАРДА ОТАЛИКНИ ТУШУНИШ ВА УНИНГ ЎЗИГА ХОС ЖИҲАТЛАРИ
Authors: Каримова Гулчеҳра
Published: April 2024

Мазкур мақолада бугун бутун дунёда оила институти инқирози, хусусан, никоҳлар беқарорлиги, ажрашишлар сони ортиши, никоҳсиз туғилишларнинг кўпайиши, оилавий ҳаёт ва фарзанд тарбиясига тоқатсизлик каби муаммоларга тўқнаш келаётган даврда оталикнинг диний ва дунёвий таълимотлардаги мақоми келтирилган. Фалсафада файласуфлар оталикни оила аъзоси сифатида оиланинг ўзаро муносабатларини белгиловчи асосий бўғин сифатида талқин қиладилар. Ота оиланинг ижтимоий мавқеини шаклланишида, оилада ахлоқий меъёрлар ва қадриятларни белгилаб берувчи муҳим механизм эканлигини эътироф этилган. Ота ўз фарзандлари учун обрў ва намуна бўлиб, уларнинг шахсияти ва ахлоқий қарашларини ривожлантиришга ёрдам беради деб баҳоланган. Оталик мақомининг ахлоқий жиҳатларини, оталик одоб-ахлоқи ўз фарзандлари, турмуш ўртоғи ва жамият олдидаги масъулиятини англаш ташкил қилиши ёритиб берилган.
TALABALARDA KASBIY KO`NIKMALARNI SHAKLLANISHIDA MIKROTA`LIM O`QITISH TEXNOLOGIYASINING SAMARALI JIHATLARI
Authors: Shamirzayeva Zarifa
Published: April 2024

Ushbu maqolada bo`lajak ingliz tili o`qituvchilarining pedagogik ta’lim jarayonida mikrota’lim metodining ahamiyatli jihatlari yoritilgan. Uning muammolari, imkoniyatlari va foydalanish istiqbollari keltirilgan. Mikrota'limda o'qitishning amaliy ko'nikmalarni oshirish usuli belgilangan. Mikrota'lim metodi orqali o'qituvchining kasbiy mahoratining shakllanishi bosqichma-bosqich jarayonda keltirilgan .
ЛИЧНОСТНО-ОРИЕНТИРОВАННАЯ ТЕХНОЛОГИЯ ОБУЧЕНИЯ В РАБОТЕ С ОДАРЕННЫМИ ДЕТЬМИ ДОШКОЛЬНОГО ВОЗРАСТА
Authors: Худойбердиева Дурдона
Published: April 2024

ресурсы, представленные в данной статье, через работу с одаренными детьми и изучение ее компонентов создают основу для проявления одаренности у детей и говорят о формировании научных взглядов, подходов, методов совершенствования основных направлений.
ОБУЧЕНИЕ ПОЭЗИИ С ПРИМЕНЕНИЕМ СТРАТЕГИИ РАЗВИТИЯ КРИТИЧЕСКОГО МЫШЛЕНИЯ
Authors: Курбонов Дониёрбек
Published: April 2024

Данная статья представляет модель урока, основанную на сравнительном изучении узбекской и русской поэзии с использованием стратегии и приемов технологии развития критического мышления. В статье рассматривается методология применения данной модели и ее роль в развитии критического мышления у студентов. Предложенная модель позволяет студентам анализировать и сопоставлять стихотворения, вырабатывать собственные выводы и интерпретацию, развивая навыки критического мышления и аргументации. Она способствует активному обучению и развитию способности студентов к самостоятельному мышлению и критическому рефлексированию. Представленная модель урока имеет практическую ценность для эффективного изучения стихотворений и развития критического мышления у студентов.
KRЕDIT PORTFЕLINI SАMАRАLI BOSHQАRISHDА TIJORАT BАNKLАRINING O‘RNI
Authors: Аzimovа Hulkаr
Published: April 2024

Mаzkur  mаqolаdа tijorаt bаnklаrining krеdit porffеlini sаmаrаli boshqаrilishi mаsаlаlаri bаyon еtilgаn bo‘lib, stаtistik mа’lumotlаr аsosidа tаhlil qilingаn. O‘zbеkiston Rеspublikаsidа bаnk tizimini isloh qilish bo‘yichа 2020-2025 yillаrgа mo‘ljаllаngаn strаtеgiyаdа nаzаrdа tutilgаn krеdit portfеli vа risklаrni boshqаrish sifаtini yаxshilаsh kаbi  ustuvor mаsаlаlаrning аhаmiyаti izoglаngаn.Shuningdеk mаqolаdа bаnk tizimidаgi krеdit portfеli vа muаmmoli krеditlаr bilаn ish olib borilishi hаmdа qonunchilik doirаsidа ko‘rilаyotgаn chorа-tаdbirlаrning аnаlizi kеltirilgаn bo‘lib, ushbu sohаdа krеdit bеrish vа qаytаrib olish tizimining sаmаrаli fаoliyаtini tа’minlаsh borаsidа bа’zi tаvsiyаlаr bеrilgаn.
INTERFERENSIYA HODISASINING TILDA AKS ETISHI XUSUSIDA OLIMLARNING TADQIQOTLARI VA QARASHLARI
Authors: Rustamov Ilxom , Inog’omjonova Robiya
Published: April 2024

Tilshunoslikda interferensiya hodisasi faqat to‘g’ridan-to‘g’ri til aloqasi natijasida kelib chiqishi kuzatilgan. Olimlar, 19-asr oxiridan boshlab, tillararo munosabatlarning bir-biriga ta’sir ko‘rsatishi haqida bir qancha fikrlar qayd etganlar. Agar tarixga nazar tashlaydigan bo‘lsak, interferensiya hodisasiga asosan salbiy ma’noda qaralar edi, vaqt o‘tishi bilan uning tilga ijobiy ta’sir ko‘rsatishi haqida fikrlar paydo bo‘ldi. Keyinchalik, 20 - asrning oxirida ular bu hodisani tillararo (nafaqat ikki tilli, balki ko‘p tilli) ham bo‘lishi mumkinligi haqida gapira boshladilar. Maqola, interferensiya hodisasining salbiy va ijobiy ta’siri haqida tarixiy o‘zgarishlarni ko‘rsatadi va olimlarning bu hodisaga qarashlari va tadqiqotlari bo‘yicha bir qancha fikrlarni tahlil qiladi.
INGLIZ, RUS VA QORAQALPOQ TILLARIDAGI FRAZEOLOGIK BIRLIKLARNING LINGVOMADANIY XUSUSIYATLARI
Authors: Seytimbetova Aykumar
Published: April 2024

Maqolada ingliz, rus va qoraqalpoq tillaridagi frazeologik birliklarning lingvomadaniy xususiyatlari o‘rganiladi. Turli xalqlar tili va madaniyatining milliy-madaniy o‘zaro ta’siri ko‘rsatilgan. Ingliz, rus va qoraqalpoq tillarida dunyo tasvirini ifodalovchi frazeologik birliklarga misollar keltirilgan. Maqolada frazeologik birliklarni qiyosiy va chog’shtirma metodlari, shuningdek tarjima qilish usuli ko'rib chiqiladi.
Avaliação científica das propriedades dos ecossistemas de manguezais e seu papel na mitigação da intensificação do efeito estufa
Authors: Alves Arielly Nara , Barrraqui Nataly
Published: April 2024

Existem na atmosfera, diversos gases de efeito estufa que irradiam pela superfície terrestre, com o agravamento inicia-se o processo de aquecimento global, a fim de encontrar uma forma de mitigar os efeitos com preservação ambiental e demonstrar o valor socioeconômico dos Manguezais, contribuindo para capacidade de catalisar gases que agravam o efeito estufa, absorvendo e armazenam uma porção de dióxido de carbono (CO2); A metodologia deste artigo visa uma revisão da literatura com auxílio do método Procknow-C e obtenção dos dados da morfologia vegetal de Mangues de duas regiões do município de Vitória, Espírito Santo, com objetivo de realizar a análise comparativa entre os meios escolhidos pela contagem de estômatos. Com isso, foi evidenciado como o ecossistema do manguezal contribui para a preservação da biodiversidade existente, demonstrando um papel socioeconômico e cultural, e em mercados trends digitais. Concluindo que a estabilidade climática gerada pelo Manguezal ocorre devido às propriedades dos microrganismos e da capacidade das espécies em absorver gases do efeito estufa (GEE). Entretanto em uma área onde a poluição for elevada a espécie não conseguirá absorver de modo significativo. Por outro lado, quando há degradação e desmatamento este carbono é liberado, resultando em emissões potencialmente elevadas de gases do efeito estufa.
Digital information resources use as predictor of academic achievement among undergraduates in Jigawa State, Nigeria
Authors: Yusuf Zainab Mukhtar , Song Usman Muhammed
Published: April 2024

This study investigated digital information resource use as a predictor of academic achievement among undergraduates in Jigawa State, Nigeria. Data was gathered through a structured questionnaire and a predictive correlation methodology was applied to a sample of 313 undergraduate students. The instrument was subjected to internal consistency and obtained Cronbach's alpha coefficient of 0.943, while the Analysis of Variance revealed a P-value˂α (f = 17.718, df = 37, p < 0.001) indicating high reliability. The findings offer light on the complex predictive strength of digital resources including ease of access, reliability, familiarity, and interactive features, and found that the libraries have a significant number of digital resources (Mean=3.3, SD=1.1) for academic use. There is a high degree of digital literacy (Mean=4.4, SD=1.1) among undergraduates which influences their access to digital resources for academic purposes. Undergraduate students' digital resources use significantly predict their academic achievements (β=0.839, t=23.141, r2=.703, p <.001, df = 227). Promoting digital literacy initiatives and expanding the availability of digital resources are two useful recommendations offered. The study’s general conclusion is that resource descriptions, ease of accessibility, variety of formats, and interactive platforms for digital sources predict academic performance.
REALISTIC VIEW ON TRADE WARS: US-CHINA TRADE CONFLICT & IMPACT ON EMERGING ECONOMIES
Authors: AHMED Saeed
Published: April 2024

The United States former President Donald Trump announced in July 2018 that the United States
had imposed tariffs on specific Chinese goods. This led to increased tensions between the two countries and
eventually set the ground for the US-China trade war, as both nations contributed fairly to the rise in import
duties on one another’s goods. The strife has had serious knock-on effects on global trade. According to the
chief economist of the Asian Development Bank, China is expected to lose 0.5% of its Gross Domestic
Product, while the United States will lose less than the above-mentioned percentage. The US–China trade
war serves as a benchmark for examining the outcomes of conflicts between two major nations of this scale.
The objective of this research article is: to analyze war from the perspective of the realistic theory in
international relations; to shed light on and identify the opportunities for developing economies to seize a
substantial share of United States imports; possible scenarios for developing and struggling economies in
case this war prolongs and how much it has impacted the protagonists.
STUDENT REPRESENTATIVE COUNCILS IN NIGERIAN TECHNICAL AND VOCATIONAL EDUCATION AND TRAINING COLLEGE
Authors: GUMEDE Edward , MAKAMU N.I , SELEPE Modupi
Published: April 2024

The envisaged study aimed to investigate the perception of students towards Student Representative
Councils (SRCs) at Tshwane North Technical and Vocational Education and Training (TVET) College. The
study employed a qualitative approach and data was gathered through semi-structured interviews with thirty
students from six different campuses. A thematic analysis was employed to analyse the collected data. The
findings of the study revealed that the SRC's obscurity, insufficient communication, lack of impartiality, and
ineptitude impede students' day-to-day cooperation with the SRC. To address student issues effectively, the
study suggests that the SRC improve its communication, competence, synergy with class representatives, and
visibility. The study identified various communication-related, service delivery-related, collaborationrelated, and competency-related initiatives that could be implemented by the SRC. The study recommends
that students should elect their SRC representatives carefully and that college administration should create
a conducive environment for SRCs to engage with students. Finally, the study suggests that future research
should focus on the obstacles faced by SRCs in the performance of their tasks.
LEGAL RELATIONSHIP BETWEEN PLATFORM SERVICEPROVIDERS AND ONLINE TRANSPORTATION DRIVER IN INDONESIA
Authors: HADIATI Dian , BUDIONO Abdul Rachmad , WIDHIYANTI Hanif Nur
Published: April 2024

This research aims to determine the classification of legal relationships between platform service
providers and online transportation drivers as gig workers (platform workers). The choice of theme is
motivated by the fact that so far the legal relationship that occurs between platform service providers and
online transportation drivers is a partnership relationship, but the partnership relationship that occurs does
not implement the principles of partnership in its implementation in the business world. This partnership
cooperation relationship is not regulated in the Law Number 20 of 2008 regarding Micro, Small, and Medium
Enterprises or the Indonesian labour law because the Indonesian labour law only recognizes working
relationships, while in the Law Number 20 of 2008 regarding Micro, Small, and Medium Enterprises because
the original intent of the partnership in Law No.20/2008 is very different from the partnership relationship
that is currently happening between platform service providers and online transportation drivers. Then the
writing of this paper uses a normative juridical method with a statutory approach and an analytical
approach. The legal material obtained by the author will be analyzed using descriptive analytical analysis
techniques, namely a method of analyzing legal material by determining the content or meaning of legal rules
in terms of partnership cooperation relationships, as well as the Civil Code. From the results of research
with the above methods, the classification of legal relationships between platform service providers and
online transportation drivers as gig workers (platform workers) is classified as a partnership relationship
based on the Subordinate union of partnership, namely a partnership based on the merger of two or more
parties that are subordinately related.
PRIVATIZATION AND COMMERCIALIZATION POLICY IN THE TELECOMMUNICATION INDUSTRY IN NIGERIA
Authors: OMOREDE Christiana Kayinwaye , OGAGA Ruth
Published: April 2024

This study focused on the privatization and commercialization policy in the telecommunication
industry in Nigeria, within the period 2012-2020. The objective of the study was to evaluate the impact of the
privatization and telecommunication industry on the nation’s economy. The paper utilized the secondary
source of data and desk analysis in discussing the paper. The paper highlighted some challenges facing the
Nigerian telecommunication industry in its new era which amongst others include, inadequate power supply,
and transmission infrastructural challenges. In a cross examination of the policy under review, the paper
discovered amongst others that, privatization and commercialization in Nigerian telecommunication industry
have affected the economy positively. Also, the paper revealed that the deregulation of the telecommunication
industry has provided a huge boost in the growth of the industry. In terms of employment opportunities, the
study revealed that, the privatization and commercialization of the telecommunication has improved the
employment rate in Nigeria. The paper therefore concluded that privatization and commercialization of the
telecommunication industry has opened up new frontiers for communication and expanded the economic
base of the economy. The paper recommended amongst others that the government should continue to create
a conducive environment for the telecommunication industry to flourish.
MILITARY JUNTA IN FRANCOPHONE WEST-AFRICA
Authors: ERUDE Shalom Ufuoma , AGIRI James Eseoghene
Published: April 2024

This study focused on military junta in Francophone West-Africa. Prior to the early 1990s this
region has been less interfered by the military, as they had a close relationship with their colonial masters.
What could have led to the recent military takeovers in this region, was what formed the basis for our study.
The secondary method of data collection was maximally explored in our study. We made ample use of both
the interventionists theory put forward by S.E. Finer. From our observations, it is clear that the current
military junta in this region is as a result of several factors viz, rejection of French dominance cum presidents
that are stooges to their colonial masters, institutional coup, and unnecessary delay in power by the leaders,
etcetera. For this to stop, there should be a well-planned tenure system for leaders enshrined in their
respective constitutions, also institutions should be strengthened to stop and/or avert institutional coup. You
cannot support institutional coups and then consider military coup illegitimate. Lastly, the French
government should maintain the principles of the UNO on diplomatic relations with other countries.
HARMONY IN CONSTRUCTION: UNRAVELLING STAKEHOLDER DYNAMICS IN A COMMUNITY-CENTRIC PROJECT
Authors: XEGWANA Monwabisi Siwakhile
Published: April 2024

The successful delivery of construction projects is contingent upon a myriad of factors, with
effective stakeholder management standing out as a linchpin in the intricate web of project dynamics. This
study aimed at exploring the dynamics of stakeholder relationships in the construction project and provide
insights that can inform both theory and practice in the realm of construction project management.
Qualitative approach was used to explore the dynamics of stakeholder relationships during the delivery of a
construction project. Semi structured interviews municipal mangers, project managers and focus group
discussions were conducted community members. Political interference and lack of community involvement
were found to have negative impact toward on the delivery of construction project. Politicisation of service
delivery by ward councillors have been found to have to be the causal factor for lack of community
involvement during the delivery of construction projects. Project managers and practitioners should adopt a
nuanced approach that extends beyond conventional planning and execution, recognizing the socioeconomic and cultural intricacies of the community. The success of construction projects, as evidenced in
Kayamandi, hinges on fostering collaboration and building partnerships with local entities. This study
contributes to the evolving discourse on construction project management, theory, policy and practice in
terms of stakeholder engagement strategies in the delivery of construction projects within the broader
municipal landscape.
On the Nested Approach to the Representation of Derived Words in an Explanatory Dictionary (in view of the Description of Nouns Ending in -(е)ств(о)//-stv(í)/-(c)tv(í) in Bulgarian and Czech)
Authors:   Sofia University St. Kliment Ohridski, Avramova Tsvetanka
Published: April 2024

The article compares the approaches to the representation of the abstract nouns ending in -(е)ств(о)//-stv(í)/-(c)tv(í) adopted in two one-volume explanatory dictionaries of Bulgarian and Czech, respectively, that employ the alphabetical-nested arrangement of the words. A large part of the abstract nouns refer to the dictionary entry of another word without being interpreted themselves. I argue that this is justified only in the case of true transpositional nomina essendi derivatives included in the derivational nest of a qualitative adjective headword. In the remaining cases analysed in the study, it is necessary to define the lexical meaning of the derivatives ending in -(е)ств(о)//-stv(í)/-(c)tv(í) separately, as it differs significantly from the meaning of the motivating words (usually – nouns for persons). Abstract nouns should accordingly be represented as separate headwords. I conclude that the alphabetical-nested principle should be applied with caution in explanatory dictionaries, always taking into account the peculiarities of the derived lexemes.
On the Doublet Forms of Ordinal Numerals
Authors:   Institute for Bulgarian Language, Bulgarian Academy of Sciences, Murdarov Vladko
Published: April 2024

The forms of the ordinal numerals have not been the subject of a dedicated study. It is therefore essential to pay attention to the doublet forms of ordinals, which have coexisted in standard literary Bulgarian over the past forty years.
Hubungan Antara Kepercayaan Diri Dengan Konformitas Teman Sebaya Pada Anggota Himapsi Universitas Sahid Surakarta
Authors: C. F. Anindra Desfi , Putri Dhian Riskiana
Published: April 2024

Mahasiswa ialah seseorang yang sedang berada dalam proses menimba ilmu ataupun belajar dan terdaftar sedang menjalani Pendidikan pada salah satu perguruan tinggi yang terdiri dari Akademik, Politeknik, Sekolah tinggi, Institut, dan Universitas. Pendidikan di jenjang perkuliahan, mereka yang memiliki latar belakang status mahasiswa program studi yang sama akan dimasukkan ke dalam kelompok “Himpunan Mahasiswa Jurusan” di program studi tersebut. Penelitian ini bertujuan untuk mengetahui hubungan antara kepercayaan diri dengan konformitas anggota HIMAPSI Universitas Sahid Surakarta. Penelitian ini menggunakan metode kuantitatif dengan jumlah responden 35 mahasiswa. Hasil Penelitian ini menunjukkan tidak adanya hubungan yang sangat signifikasi antara kepercayaan diri dengan konformitas teman sebaya. Hal ini ditunjukkan oleh nilai signifikansi 0,136 > 0,05 serta nilai r sebesar 0,329 < 0,5. Hal ini menunjukkan semakin tinggi tingkat kepercayaan diri maka tidak akan mudah terpengaruh oleh konformitas teman sebaya.
Kata Kunci : Mahasiswa, Konformitas, Kepercayaan diri
ОПТИМИЗАЦИОННАЯ МОДЕЛЬ ФОРМИРОВАНИЯ МАРШРУТОВ СЛЕДОВАНИЯ КОНТЕЙНЕРНЫХ ПОЕЗДОВ НА ЖЕЛЕЗНОДОРОЖНОМ ПОЛИГОНЕ
Authors: O. Г. Киселёва  , Юн Чэнь  , А. С. Избаирова
Published: April 2024

В статье рассмотрена актуальная задача формирования оптимальной маршрутной сети для продвижения контейнерных поездов по участкам железнодорожного полигона. Целью научного исследования является разработка вариантов решения задачи по критерию – минимизации затрат. Для решения поставленной задачи предложено использовать математическую модель о многопродуктовом потоке минимальной стоимости с применением метода релаксации, который позволяет на каждом шаге итерации выбирать наиболее эффективный вариант следующего решения. Задача оптимизации маршрутов следования контейнерных поездов решается путем построения мультиграфа с множеством вершин и дуг, исходными данными являются удельные затраты на транспортировку единицы продукции, максимальные и минимальные значения потоков между вершинами. При использовании теории графов имеется возможность поиска оптимального распределения контейнеропотоков на сети при условиях сохранения потока в вершинах графа и ограничений на величину потока по дугам. В исследовании установлено, что для реализации поставленной задачи необходимо учитывать удельные затраты на следование контейнерных поездов между узлами железнодорожного полигона с учетом пропускных способностей ветвей между узловыми станциями. Дополнительно к оптимизации маршрутов следования контейнерных поездов разработанная математическая модель позволяет принять решений при выборе рационального варианта инвестиций для развития транспортной инфраструктуры и усиления пропускной способности железнодорожных участков полигона. Использование предлагаемой модели дает возможность определить участки с ограниченной пропускной способностью с целью наиболее эффективного перераспределения потоков. Данные решения позволят получить максимально возможный экономический эффект за счет снижения стоимости затрат на транспортировку.
ОПТИМИЗАЦИЯ ТЕХНОЛОГИИ ИЗГОТОВЛЕНИЯ БИЛОДЕРЖАТЕЛЕЙ ВАЛКОВОЙ СРЕДНЕХОДНОЙ МЕЛЬНИЦЫ
Authors: Е. Т. Абильмажинов  , Д. С. Гражданкин
Published: April 2024

Данная статья представляет результаты опытно-промышленных испытаний по оптимизации технологии изготовления билодержателей валковой среднеходной мельницы типа МВС. Мельницы МВС широко применяются в промышленности для измельчения и сортировки различных материалов. Непосредственно на билодержателях происходит закрепление бил на роторах в молотковых мельницах и дробилках. Основная цель эксперимента состояла в повышении эффективности технологического процесса изготовления билодержателей, сокращение сроков изготовления и снижении затрат на производство, без потери качества и длительности службы. Технологический процесс получения отверстий билодержателей был изменен с механической обработки на термическую резку. Термическая резка обеспечивает быстрое и точное разделение материала, что дает преимущество при работе с толстыми или твердыми материалами. С развитием технологий механическая резка вытеснила механическую обработку на деталях и изделиях, не требующих большой точности изготовления. Для проведения эксперимента была изготовлена опытная партия и установлена на одной из мельниц электростанции АО «ЕЭК» г. Аксу. Программа опытно-промышленных испытаний направлена на изучение образцов во время плановых ремонтов, а также на определения состояния всех механизмов мельницы МВС. Ключевые слова: билодержатель, мельница МВС, термическая резка, кислородная резка, оптимизация технологического процесса.
ИЗУЧЕНИЕ ПРОЦЕССА ГИДРОМЕТАЛЛУРГИЧЕСКОГО ИЗВЛЕЧЕНИЯ ОЛОВА ИЗ ПЕЧАТНЫХ ПЛАТ СМАРТФОНОВ С УЛЬТРАЗВУКОВОЙ ИНТЕНСИФИКАЦИЕЙ
Authors: Р. В. Сапинов  , Ж. Шошай  , А. Б. Баева  , М. Т. Тулиндинов  , Д. Р. Сапинова
Published: April 2024

При сегодняшнем уровне потребления, минеральные источники олова интенсивно истощаются, по причине широкого использования в электронной промышленности в качестве припоя. Поэтому крайне актуальным вопросом является возвращение вторичного олова в производственный цикл. В статье представлена методика гидрометаллургического извлечения олова из бывших в употреблении электронных устройств (электронных отходов) с применением ультразвуковой интенсификации. Был проведен тщательный обзор существующих и опубликованных методов извлечения олова. Была установлена потребность в комплексном методе извлечения металлов из электронных отходов. Метод должен сводить к минимуму потребление энергии и воздействие на окружающую среду. За этим последовала концептуальная разработкаусовершенствованного гидрометаллургического метода извлечения олова, который был подтвержден экспериментально. При нагреве до 85 °С, без ультразвукового воздействия степень извлечения олова достигла 78,4 %, а с ультразвуковым воздействием извлечение олова достигло 91,6 %. Данный факт можно объяснить снижением энергии активации процесса выщелачивания олова с 43,96 кДж/моль в нормальных условиях до 41,98 кДж/моль под действием ультразвука и смещением лимитирующей стадии процесса из химической в промежуточную область. На основе этих результатов в статье далее предлагается изучить воздействие ультразвука на процесс цементационного осаждения олова из продуктивного раствора. Следующая статья будет посвящена процессу селективного осаждения олова из продуктивного раствора. Ключевые слова: олово, ультразвук (УЗК), вторичная переработка, гидрометаллургия, электронные отходы.
EXPRESSION OF ENVIRONMENTAL VALUES ATTITUDES IN THE DRAWINGS OF SECOND GRADE STUDENTS
Authors: Alksninytė Vytė
Published: April 2024

This article stresses the importance of trying to uncover and understand students' value attitudes. Since we cannot see the values themselves, observing students' behaviour, asking the right questions and encouraging them to share their thoughts can give us insight into their attitudes. This knowledge could be used to personalise the content of learning and to choose which teaching methods to use. By creating learning situations with direct experience, we allow connections to be made between knowledge and concrete experiences. Equally important is the experience that learners already have. This paper describes a methodology that was used to identify students' expression of environmental values through their favourite places. A 3-step activity was carried out with 22 second grade learners. The results of the activity show that the majority of the students chose their favourite places in nature, some of them specific locations, others nature in a non-literal sense. Keywords: educational activities, environmental attitudes, teaching methods, value attitudes
COMPUTER EDUCATION REFORM IN TAIWAN
Authors: Huang Kuo-Hung
Published: April 2024

This article discusses the evolution of computer education curricula in primary and high schools worldwide, highlighting the significance of adapting to the rapid advancements in information technology. It addresses the varying perspectives on the content and timing of computer courses and analyzes literature on pre-university computer curricula across different countries. These differences reflect the unique societal and economic conditions of each country. Taiwan's computer education reform, initiated in 2019 with the 12-Year Curriculum Guidelines, is explained. The reform significantly emphasizes computational thinking, a recent shift in curriculum orientation incorporating problem-solving skills to address real-world issues. The discussion also notes the difficulties in promoting new computer curricula, emphasizing the need to understand these challenges to prevent potential conflicts.
Key words: ICT in education, computer science education, computational thinking, computer education reform.
EDUCATION FOR SUSTAINABLE DEVELOPMENT IN PRIMARY SCHOOL: THE POSITION OF PRE-SERVICE PRIMARY SCHOOL TEACHERS
Authors: Lamanauskas Vincentas , Malinauskienė Daiva
Published: April 2024

The results of the survey showed that a large proportion of pre-service teachers, when assessing the situation over the next 10 years in nine key areas (air pollution, deforestation, biotic crisis, greenhouse effect, water scarcity, radioactive waste, GMOs, water pollution, global warming), predicted that the situation would worsen in all areas. It is clear that such scenarios are mostly dependent on the socio-economic development of humanity and what measures/actions will be taken at national and international level to minimise the consequences of such predictions for humanity.
The results of the study show that in the national context, sprawl and solid waste are seen as the most pressing environmental problems. Endangered species, deforestation, exotic plants and/or animals are not considered to be a pressing issue in Lithuania. The vast majority of preservice teachers consider their knowledge of sustainable development to be insufficient and say that much more is needed. These findings oblige curriculum designers and implementers to take this into account when improving/restructuring/developing curricula and constructing the content of individual subjects.
The results suggest that the majority of respondents consider teaching about sustainable development at an early age to be very important. The latter variable is directly correlated with the need for knowledge about sustainable development. Respondents who emphasise the importance of teaching about sustainable development have a correspondingly higher need for knowledge about sustainable development. In addition, it is found that the majority of the respondents have a positive attitude towards sustainable development and only a small number of respondents have a neutral attitude towards it.
The study certainly has some limitations. Firstly, the sample size of the study is small, despite the fact that it is in principle in line with the requirements of a preliminary/pilot study. Due to the homogeneity of the population studied, possible gender differences were not analysed.
Keywords: education for sustainable development (ESD), quantitative survey, primary school, pre-service teachers, sustainable development
Why mentorship?
Authors: Lim Fidelindo
Published: April 2024

Mentors help guide a deeply personal journey.
Deskripsi Pemahaman Matematis Berdasarkan Gaya Kognitif pada Materi Segi-Empat
Authors: Asmaun Asmaun
Published: April 2024

Penelitian ini merupakan penelitian deskriptif dengan menggunakan pendekatan kualitatif, Subjek penelitian terdiri dari empat siswa kelas VIII.1 MTsN 1 Kota Makassar. Hasil pembelajaran terhadap konsep 4 sisi adalah: siswa yang memiliki gaya kognitif field-independent mampu mencapai 5 indikator dengan baik dari 6 indikator. Umumnya, siswa yang tidak bergantung pada bidang memahami konsep dengan mempertimbangkan sifat-sifat setiap bentuk 4 sisi; Hal ini menyebabkan mampu mencapai 4 dari 5 indikator pemahaman prinsip yang telah ditentukan. Siswa yang bersifat fieldman pada umumnya memahami cara menggunakan dan menghubungkan prinsip-prinsip benda bersisi 4, namun kurang terampil dalam proses aljabar. Namun, indikator yang bergantung pada lapangan belum berhasil mencapai 6 indikator yang ditentukan; hanya dengan melihat bentuknya secara utuh siswa dapat memahami konsep benda bersisi 4. Namun untuk prinsip pemahaman 4 sisi, siswa hampir tidak mencapai 5 indikator yang ditentukan. Siswa memahami secara umum prinsip 4 sisi terbatas pada prinsip penggunaan suatu benda bersisi 4 tertentu. Dalam hal ini siswa belum cukup terampil dalam memahami hubungan antar benda, apalagi tidak dapat menggunakan prinsip tersebut untuk memecahkan masalah
TESTING SOFTWARE FOR INCREASING THE VISUAL PROPERTIES OF DIGITAL IMAGES
Authors:   L.N.  Gumilyov  Eurasian  National University, Eldarova E.E.
Published: April 2024

This article discusses the algorithm and the results of the software implementation, which was developed during the creation and research of algorithms to improve the visual properties of digital images. Images from the TID2013 database were used as a test image to test the results of the software. A database of digital images MyImages with different types of distortion from real scenes was created. Evaluation measures were used to validate the quality evaluations of digital images. Pearson's correlation is used for comparison with a reference, and the CLRIQA algorithm is used to evaluate images without a reference. Visual evaluation of the quality of digital images was carried out using social networks. All processed images were estimated on a 5-point scale: 1 – satisfied, 2 – bad, 3 – satisfied, 4 – good, 5 – very good. All results were validated by indicators. Pearson's correlation coefficient, Spearman's rank correlation and Kendell's correlation coefficient were used to determine the compliance between objective and subjective evaluations. The final testing of the proposed algorithms based on MyImage and TID2013 shows the best result in the range of [0.71-0.83]. This testifies that the objective indicators of image eval- uation agrees well with the visual opinions. The developed algorithms for improving the visual quality of digital images are integrated into the AutoImage program. This program received a certificate of state registration of a computer program (rights No. 30080 dated November 8, 2022).
METODOLOGIAS ATIVAS E INSTRUÇÃO ENTRE PARES NA EDUCAÇÃO MODERNA
Authors: Santos Silvana Maria Aparecida Viana , Silva Claudia Kreuzberg da , Silva Eliana Garcia da , Pereira João Alves , Silvany Marco Antonio
Published: April 2024

Este artigo explorou a aplicação e os impactos das Metodologias Ativas na educação, com ênfase na metodologia de Instrução Entre Pares. O estudo teve como objetivo analisar como essas metodologias transformam o ambiente de aprendizagem, promovendo uma educação mais colaborativa e interativa. A investigação baseou-se em uma metodologia de pesquisa bibliográfica, seguindo as diretrizes propostas por Oliveira Netto (2008), onde foram analisados artigos, livros e documentos eletrônicos pertinentes ao tema. Autores como Marin et al. (2010), Singer e Moscovici (2008, como citado em Marques et al., 2021), e Paulo Freire (2015, como citado em Sepulvida, 2022) foram fundamentais para a discussão sobre a mudança de papel do estudante e do educador sob o prisma das Metodologias Ativas. Lima e Santos (2016, como citado em Santos, 2018) e Trindade (2014, como citado em Santos, 2018) contribuíram com perspectivas sobre a implementação tecnológica necessária para a prática efetiva da Instrução Entre Pares em ambientes educacionais. O artigo concluiu que a adoção das Metodologias Ativas é crucial para o desenvolvimento de um modelo educacional que valoriza a autonomia do aluno e a interatividade no processo de aprendizagem. Estimulou-se a realização de mais pesquisas sobre a integração de tecnologias educacionais modernas para facilitar a implementação dessas metodologias.
Combining the U-Net model and a Multi-textRG algorithm for fine SAR ice-water classification
Authors: Sun Yan , Wang Shaoyin , Cheng Xiao , Li Teng , Liu Chong , Ye Yufang , Zhao Xi
Published: April 2024

Abstract. Sea ice classification faces challenges due to the similarity among surfaces such as wind-driven open water (OW), smooth thin ice, level first-year ice (FYI), and melted ice surfaces. Previous algorithms combine unsupervised region segmentation and supervised neural networks, yet struggle due to limited manual labels and inaccurate region segmentation. We propose to adopt a supervised neural network followed by a region segmentation algorithm with experiential knowledge involved to solve the ambiguous recognition question and sample number limitation. Provided by the AI4Arctic competition, the preprocessed GCOM-W1 AMSR2 36.5GHz H polarization and Sentinel-1 SAR EW dual-polarization data, the CIS/DMI ice chart labels, and the pre-trained U-Net CNN model are employed to perform semantic segmentation of ice and water with near-100 % accuracy. Subsequently, within the U-Net semantically segmented ice mask, a multistage pixel-based ice detection algorithm developed on GLCM textures of SAR images and region growing approach, the Multi-textRG algorithm, refines the ice edge details. We validate the results on Landsat-8 and Sentinel-2 optical data yielding an overall accuracy of 83.11 %, low false negative (FN) of 4.03 % indicating underestimated low backscatter ice surfaces and higher false positive (FP) of 12.86 % reflecting their resolution difference along edges. More importantly, we fused the SAR-based ice detection with CIS/DMI ice charts and AMSR2 ASI SIC product obtaining SAR-Chart and SAR-AMSR2 labels, which enhance ice edge depictions and SIC variation contours. Repeating the two-step procedure with the high-precision SIC labels demonstrates the U-Net model's capability to extract detailed ice edges information and stability of the Multi-textRG algorithm. The U-Net model trained on SAR-AMSR2 label achieves the highest R2-score of 91.993 %, the largest OWrecall (recall of OW) of 99.268 %, and large ov40recall (recall of ice with over-40 % SIC) of 99.207 %. Our algorithm framework solves the accurate ice-water classification at all seasons and facilitates the sample labelling for improving SIC estimation accuracy based on CNN models.
Aggregation of ice-nucleating macromolecules from Betula pendula pollen determines ice nucleation efficiency
Authors: Wieland Florian , Bothen Nadine , Schwidetzky Ralph , Seifried Teresa M. , Bieber Paul , Pöschl Ulrich , Meister Konrad , Bonn Mischa , Fröhlich-Nowoisky Janine , Grothe Hinrich
Published: April 2024

Abstract. Various aerosols, including mineral dust, soot, and biological particles, can act as ice nuclei, initiating the freezing of supercooled cloud droplets. Cloud droplet freezing significantly impacts cloud properties and, consequently, weather and climate. Some biological ice nuclei exhibit exceptionally high nucleation temperatures close to 0 °C. Ice Nucleating Macromolecules (INMs) found on pollen are typically not considered among the most active ice nuclei. Still, they can be highly abundant, especially for species such as Betula pendula, a widespread birch tree species in the boreal forest. Recent studies have shown that certain tree-derived INMs exhibit ice nucleation activity above -10 °C, suggesting they could play a more significant role in atmospheric processes than previously understood. Our study reveals three distinct INM classes active at -8.7 °C, -15.7 °C, and -17.4 °C are present in B. pendula. Freeze-drying and freeze-thaw cycles noticeably alter their ice nucleation capability, and the results of heat treatment, size, and chemical analysis indicate that INM classes correspond to size-varying aggregates, with larger aggregates nucleating ice at higher temperatures in agreement with previous studies on fungal and bacterial ice nucleators. Our findings suggest that B. pendula INMs are potentially important for atmospheric ice nucleation because of their high prevalence and nucleation temperatures.
The atmosphere-land/ice-ocean system in the region near the 79N Glacier in Northeast Greenland: Synthesis and key findings from GROCE
Authors: Kanzow Torsten , Humbert Angelika , Mölg Thomas , Scheinert Mirko , Braun Matthias , Burchard Hans , Doglioni Francesca , Hochreuther Philipp , Horwath Martin , Huhn Oliver , Kusche Jürgen , Loebel Erik , Lutz Katrina , Marzeion Ben , McPherson Rebecca , Mohammadi-Aragh Mahdi , Möller Marco , Pickler Carolyne , Reinert Markus , Rhein Monika , Rückamp Martin , Schaffer Janin , Shafeeque Muhammad , Stolzenberger Sophie , Timmermann Ralph , Turton Jenny , Wekerle Claudia , Zeising Ole
Published: April 2024

Abstract. The Greenland Ice Sheet has steadily lost mass over the past decades, presently representing the second-largest single contributor to global sea-level rise. Even the glaciers draining the Northeast Greenland ice stream have been observed to retreat and thin. Here, we present a comprehensive study of processes affecting and being affected by the mass balance of marine terminating and peripheral glaciers in Northeast Greenland. Our focus is on the 79N Glacier (79NG), which hosts Greenland’s largest floating ice tongue. We provide new insight into the ice surface melt, ice mass balance, glacier dynamics, regional solid earth response, ocean-driven basal melt and the consequences of meltwater discharge into the ocean. Our study is based on observations, remote sensing and simulations with numerical models of different complexity, most of them originating from the Greenland Ice Sheet–Ocean Interaction Experiment (GROCE). We find the overall negative climatic mass balance of the 79NG to co-vary with summertime volumes of supraglacial lakes, and show the spatial pattern of overall negative ice mass balance for NE Greenland to be mirrored by the pattern of glacial isostatic adjustment. We find near coastal mass losses of both marine terminating and peripheral glaciers in NE Greenland to be of similar magnitude in the last decade. In contrast to the neighboring Zachariae Isstrøm, the 79NG – despite experiencing massive thinning of the floating tongue – has resisted an acceleration of ice discharge across the grounding line due to buttressing imposed by lateral friction of the 70 km-long ice tongue in the narrow glacial fjord. Observations and models employed in this study are consistent in terms of melt rates occurring below the floating ice tongue. Our results suggest the multidecadal warming of Atlantic Intermediate Water flowing into the cavity below the ice tongue – supplied by the recirculating branch of the West Spitsbergen Current in Fram Strait – to be the main driver of the recent major increase in basal melt rates. We find the melt water leaving the cavity toward the ocean at subsurface levels to quickly dilute on the wide shelf. The study concludes by summarizing important estimates of changes to the state of the atmosphere, ice, land and ocean domains.
Evolution of submarine canyons and hanging-wall fans: insights from geomorphic experiments and morphodynamic models
Authors: Lai Steven Y. J. , Amblas David , Micallef Aaron , Capart Hervé
Published: April 2024

Abstract. Tectonics play a significant role in shaping the morphology of submarine canyons, which form essential links in source-to-sink (S2S) systems. It is difficult, however, to investigate the resulting morphodynamics over the long term. For this purpose, we propose a novel experimental approach that can generate submarine canyons and hanging-wall fans on continuously evolving active faults. We utilize morphometric analysis and morphodynamic models to understand the response of these systems to fault slip rate (Vr) and inflow discharge (Q). Our research reveals several key findings. Firstly, the fault slip rate controls the merging speed of submarine canyons and hanging-wall fans, which in turn affects their quantity and spacing. Additionally, the long profile shapes of submarine canyons and hanging-wall fans can be decoupled into a gravity-dominated breaching process and an underflow-dominated diffusion process, which can be described using a constant-slope relationship and a morphodynamic diffusion model, respectively. Furthermore, both experimental and simulated submarine canyon–hanging-wall fan long profiles exhibit strong self-similarity, indicating that the long profiles are scale independent. The Hack's scaling relationship established through morphometric analyses serves as an important link between different scales in S2S systems, bridging laboratory-scale data to field-scale data and submarine-to-terrestrial relationships. Lastly, for deep-water sedimentary systems, we propose an empirical formula to estimate fan volume using canyon length, and the data from 26 worldwide S2S systems utilized for comparison show a strong agreement. Our geomorphic experiments provide a novel perspective for better understanding of the influence of tectonics on deep-water sedimentary processes. The scaling relationships and empirical formulas we have established aim to assist in estimating volume information that is difficult to obtain during long-term landscape evolution processes.
Research and application of a flexible measuring array for deep displacement of landslides
Authors: Li Yang , Li Zhong , Guo Qifeng , Liu Yimin , Zhang Daji
Published: April 2024

Abstract. The multidimensional and multi-sliding surface measurement of deep-seated displacement on landslides poses a significant technical challenge in landslide monitoring and early warning. The fixed-borehole inclinometer serves as an important measurement method based on drilling for this purpose. In this study, a novel flexible measurement array for deep-seated landslide displacement and its installation and measurement processes were developed, enabling higher accuracy in full-hole multidimensional deformation measurement. The measurement array consists of individual measurement probes as basic units, connected in series through coaxial cables and high-pressure rubber hoses, forming a flexible measurement array. Each probe is equipped with acceleration and magnetic field sensors, allowing for the measurement of borehole inclination and azimuth angles and providing a more comprehensive understanding of the deformation of deep-seated landslides. This flexible measurement array resolves the limitations of traditional fixed inclinometers, such as limited probe quantity or inaccurate installation positions that fail to reflect the deformation trend of the landslide body. Moreover, it eliminates the need for auxiliary installation accessories like pulleys and inclinometer pipes, simplifying the mechanical structure and installation process, which represents an advancement in methodology and an improvement in measurement techniques. This array provides a more comprehensive and improved monitoring tool for disaster prevention and mitigation, thereby enhancing the level of geological hazard monitoring and early warning technology.