bluuebunny/crossref_metadata_2025 huggingface dataset:
Helium-graphene optical-acoustic converter of extreme ensitivity
Authors: Gibin Igor , Kotlyar Peter
Published: July 2021

The prospects for the use of single-layer graphene in the design of optical-acoustic converters (OAC) of a new generation are considered. It is shown that the limiting characteristics of transducers with single-layer graphene membranes can be obtained only in OACs constructed according to the Hayes scheme. The main characteristics of membranes – the main elements of OAC – are considered, and the physical properties of graphene, as the most preferred mate-rial for membranes, are analyzed. Estimates having been made show that the use of SLG gra-phene membranes makes it possible to create IR and THz radiation receivers with cells of the order of tens of microns with extremely high sensitivity. To achieve the maximum sensitivity, it is proposed to perform edge perforation of graphene membranes. A new design scheme of uncooled helium-graphene optoacoustic receivers with theoretically maximum sensitivity and speed and an operating range extended to helium temperatures is proposed. The de-scribed technical solutions can be used as the basis for the design of uncooled.
Assessment of the anaerobic baffled reactor for treatment of vegetable oil effluent
Authors:   , Frost Lee-Anne
Published: July 2021

The vegetable oil industry produces effluent containing quantities of fat, oil, sodium, phosphates as well as other pollutants. Oils and greases tend to clog sewers and pumps, thus creating difficulties within the municipal wastewater treatment works. Physico-chemical treatment methods, such as (Dissolved Air Flotation) OAF, gravity separation and the use of coagulants have been attempted providing a considerable reduction in organic loading; however, discharge standards are still not met. Thus, biological treatment methods are being sought after. Aerobic treatment has been attempted however, shock loads cause problems while running such a process. The objective of this study was to assess the efficiency of anaerobic digestion to degrade Vegetable Oil Effluent (VOE) as well as the efficiency of the Anaerobic Baffled Reactor (ABR). Anaerobic digestion involves the breakdown of organic matter by the action of microorganisms in the absence of oxygen, producing methane-rich biogas. The VOE was characterized, providing significant information on its chemical composition. It was found that the effluent had high sulphate content as well as a high COD content. High sulpahte content of wastewaters have known to promote growth of Sulphate Reducing Bacteria (SRB), which utilize the same energy source as Methane Producing Bacteria (MPB) and therefore compete for the same energy source. Sulphate and lipid reduction pretreatment experiments were carried out, using barium chloride and gravitational separation respectively. The results obtained, showed that the use of barium chloride to reduce sulphate content in VOE was successful, with significant sulphate reduction. The lipid reduction experiments however, did not show any significant lipid reduction. Batch tests were conducted in serum bottles to assess the extent of biodegradation of the VOE in its raw state as well as with reduced sulpahte content. Methanogenic toxicity tests on the raw and pretreated VOE provided a range of toxicity results. These assays are relatively simple and inexpensive. Gas production was monitored to determine the rate and extent of biodegradation. The efficiency of digestion was assessed by COD reduction. Results indicated potential inhibition of the methanogenic bacteria responsible for methane production
The accumulation of heavy metals by aquatic plants
Authors:   , Maharaj Saroja
Published: July 2021

The pollution of water bodies by heavy metals is a serious threat to humanity. The technique known as phytoremediation is used to clean up these polluted water bodies. The accumulation of heavy metals by aquatic plants is a safer, . cheaper and friendlier manner of cleaning the environment. The aquatic plants -studied in this project are A.sessilis, P.stratiotes, R.steudelii and T.capensis. The accumulation of heavy metals in aquatic plants growing in waste water treatment ponds was investigated. The water, sludge and plants were collected from five maturation ponds at the Northern Waste Water Treatment Works, Sea Cow Lake, Durban. The samples were analysed for Zn, Mn, Cr, Ni, Pb and Cu using ICP-MS. In general it was found that the concentrations of the targeted metals were much lower in the water (0.002 to 0.109 mg/I) compared to sediment/sludge (44 to 1543mg/kg dry wt) and plants (0.4 to 2246 mg/kg dry wt). These results show that water released into the river from the final maturation pond has metal concentrations well below the maximum limits set by international environmental control bodies. It also shows that sediments act as good sinks for metals and that plants do uptake metals to a significant extent. Of the four plants investigated it was found that }t.sessi[ir (leaves, roots and stems) and }A.sessilis (roots and stems) are relatively good collectors of Mn and Cu respectively. These findings are described in the thesis. The concentration of heavy metals in the stems, leaves and roots of the three plants were compared to ascertain if there were differences in the ability of the plant at different parts of the plant to bioaccumulate the six heavy metals studied.
NGHIÊN CỨU QUY TRÌNH TÁCH CHIẾT CAROTENOID TỔNG SỐ TỪ LÁ CÚC TẦN (PLUCHEA INDICA LESS.) THU HÁI TẠI THÁI NGUYÊN
Authors: Đinh Thị Kim Hoa , Nguyễn Thị Tình , Tạ Thị Lượng , Nguyễn Văn Duy , Nguyễn Thị Trà My , Lê Thị Hồng Ngọc , Nông Thị Hồng Ngọc , Vi Đại Lâm , Lưu Hồng Sơn
Published: July 2021

Carotenoid tổng số đã được sử dụng nhiều trong lĩnh vực thực phẩm, mỹ phẩm và dược phẩm. Hiện nay nguồn nguyên liệu sản xuất chính là chiết suất từ thực vật. Trên cơ sở khảo sát các yếu tố ảnh hưởng đến điều kiện chiết tách bằng phương pháp quy hoạch thực nghiệm Box-Behnken đã tìm đươc điều kiện tối ưu quá trình tách chiết carotenoid tổng số từ lá cúc tần: nhiệt độ sấy nguyên liệu, tỉ lệ dung môi/nguyên liệu (ete dầu hỏa), thời gian siêu âm, nhiệt độ tách chiết tương ứng: 60 °C, 10/1(ml/g), 5 phút, 60 °C; tỷ lệ dung môi/nguyên liệu là 10,98 (ml/g), thời gian siêu âm 7,04 phút, nhiệt độ tách chiết 61,58 °C cho hàm lượng carotenoid tổng số là 5,21795 mg/100g. Kết quả thực nghiệm cho kết quả có độ tương thích cao với mô hình.
ẢNH HƯỞNG CỦA MẬT ĐỘ DÒNG ĐIỆN LÊN HÌNH THÁI VÀ TÍNH CHẤT TÁN XẠ RAMAN TĂNG CƯỜNG BỀ MẶT CỦA CÁC MẢNG HẠT NANO BẠC CHẾ TẠO BẰNG LẮNG ĐỌNG ĐIỆN HÓA
Authors: Cao Tuấn Anh , Đào Trần Cao , Lương Trúc Quỳnh Ngân , Nguyễn Anh Vũ
Published: July 2021

Tán xạ Raman tăng cường bề mặt (SERS) là một kỹ thuật phân tích cho phép phát hiện lượng vết của các phân tử hữu cơ và sinh học. Trong kỹ thuật này, đế SERS, nơi mà tín hiệu tán xạ Raman được tăng cường, đóng vai trò đặc biệt quan trọng. Một trong những loại đế SERS được sử dụng phổ biến nhất là các hạt nano bạc (AgNPs) gắn trên một đế rắn. Thông thường, các mảng AgNPs được chế tạo bằng phương pháp lắng đọng không điện, trong báo cáo này chúng tôi trình bày việc chế tạo các ảng AgNPs trên bề mặt silic bằng phương pháp lắng đọng điện hóa. Kết quả cho thấy, phương pháp này cho phép tạo ra mảng hạt nano bạc đồng đều về kích thước, hình thái cũng như khoảng cách giữa các hạt. Hơn thế nữa, kích thước và khoảng cách giữa các hạt có thể được điều khiển bảng sự thay đổi mật độ dòng điện hóa. Để kiểm tra hiệu suất của các đế SERS, các mảng hạt AgNPs được sử dụng là đế SERS để phát hiện tinh thể tím (CV). Các kết quả chon thấy cường độ của tín hiệu SERS phụ thuộc mạnh vào kích thước của AgNPs và khoảng cách giữa chúng. Với các mảng hạt AgNPs tối ưu, chúng tôi đã ghi nhận được phổ SERS của CV ở nồng độ dưới 0,1 ppb.
Tasarım Mesleklerinde Hazırlanan Portfolyolara Ait Özelliklerin Belirlenerek Değerlendirilmesi
Authors: YUM Mehmet Sinan
Published: July 2021

Tasarımcı adaylarının ve profesyonellerin özellikle mesleki arayışlarında kullandıkları tasarım portfolyoları, farklı kurum, işveren ve stüdyolara yönelik hazırlanan belgelerdir. Portfolyo tasarımı, renk, biçim, tipografi ve görsel kullanımına dayanan bir görsel iletişim yöntemidir. Mesleki ifade biçimlerine uygun olarak hazırlanan portfolyo belgelerinde öğrenciler eğitimlerini, becerilerini ve uzmanlıklarını görselleştirirler (Goldsby ve Fazal, 2001: 607-616; DiMarco, 2005). Portfolyolar profesyonellerin ve öğrencilerin kendilerini sektörde konumlandırlamalarına olanak vermektedir. Kalitatif bir araştırma olan çalışmanın ana hipotezi 'Portfolyo belgeleri, tasarımcıların sahip olduğu mesleki farklılıklara bağlı bireysel vizyonun açıklanmasına imkan verebilir' şeklindedir. Bu amaçla araştırmada yazarın farklı kurumlarda, Endüstriyel Tasarım, İç Mimarlık ile Gemi ve Yat Tasarımı bölümlerinde gerçekleştirmiş olduğu portfolyo tasarımı dersine ait üretimler sunulmakta, sunulan çalışmalar oluşturulan literatür ölçütlerine göre farklılıkların ve benzerliklerin tespiti amacıyla değerlendirilmektedir. Tasarım sektörü ile akademik alan arasında ilişkiler kuran çalışmada sunulan örneklerin açıklanmasıyla, tasarım eğitiminde mesleki eğilimlerin portfolyo belgelerine yansıtılmasına yönelik kazanımlar sağlanması hedeflenmektedir.
A Pandemic of Misinformation
Authors:   Marquette High School, Huria Janvi
Published: July 2021

Through social distancing and a lot of time spent at home, I have a lot more time for introspection, research, and reading that I don't normally have. I began rereading Stellar Medicine: A Journey Through the Universe of Women's Health written by Dr. Saralyn Mark. So far, it is a great read (I highly recommend it to any interested readers). One of the first topics addressed in this book is the pandemic of misinformation. In this chapter, Dr. Mark addresses some of the public health scares from 9/11 to the anthrax and bird flu scares. The common thread among these scares was the public's misinformation detracting from a tangible solution to the crisis. The example that I found most interesting was about the bird flu. During this time, people started excessively purchasing the antiviral drug Tamiflu which unfairly took away resources from people with the seasonal flu. One of the quotes that I found to resonate most with our modern situation was "this message [that sustained transmission of bird flu was unlikely] was often overlooked. Meanwhile, the country was terrified for a time, and again taxed the medical system needlessly" (Mark 22). This idea that misinformation drives us further away from a solution needs to be carefully analyzed especially now. Many people (myself included) are being driven to take extreme actions based on flawed understandings of the virus. So this article is dedicated to clearing up (to whatever extent and reach I have) this "pandemic of misinformation" regarding COVID-19.
La financiarisation du marché des minerais et des métaux : origine, enjeux et perspectives
Authors: JÉGOUREL Yves
Published: July 2021

Cette étude traite de la financiarisation des marchés de matières premières, phénomène complexe synonyme d’un renforcement du rôle des marchés de produits dérivés. Lors de la prochaine décennie, elle devrait se traduire par un développement des bourses chinoises et par un accroissement des minerais et produits intermédiaires, en amont des métaux, faisant l’objet de cotations.
La « malédiction des ressources » dans les pays miniers en développement
Authors: AKNIN Audrey
Published: July 2021

Depuis les années 2000, la stratégie de développement fondée sur l’extraction, la transformation et l’exportation des minerais et hydrocarbures est remise en cause par la « malédiction des ressources » qui entrave le développement économique et humain, tout en dégradant irréversiblement l’environnement. Comment l’identifier ? Quelles en sont les manifestations ? Quelles solutions peuvent être envisagées pour l’éviter ou la conjurer ? Autant de problématiques étudiées dans ce chapitre.
Luxe et développement durable : les entreprises face au défi de convaincre des consommateurs réticents
Authors: Akli ACHABOU Mohamed , DEKHILI Sihem
Published: July 2021

Le luxe et le développement durable, deux univers qui peuvent paraitre contradictoires. Les rapprocher met les entreprises de luxe face à des défis importants, en particulier celui de convaincre les consommateurs que l’engagement durable ne remet pas en cause le caractère luxueux des produits. Ce chapitre offre des préconisations et pistes d’actions pour relever ce défi.
Les conditions d’efficacité d’une communication sociétale
Authors: FRANÇOIS-LECOMPTE Agnès , FOUTREL Sylvie
Published: July 2021

La question posée est de savoir comment une entreprise peut tirer profit de ses actions en matière de développement durable dans la commercialisation de son offre. Autrement dit, comment valoriser la RSE auprès de ses clients ? Un ensemble de recommandations issues de la littérature académique et professionnelle est proposé à destination des entreprises sur le sujet.
Comment communiquer de manière efficace sur le changement climatique ?
Authors: ODOU Philippe , SCHILL Marie , NAVARRO Manu
Published: July 2021

Communiquer sur le changement climatique est indispensable pour permettre aux consommateurs citoyens une prise de conscience et des comportements plus durables. Ce chapitre aborde les axes de communication à privilégier selon la cible considérée, explore la question des émotions dans la communication et propose une réflexion quant à la population enfantine.
Régulations environnementales et sensibilisation : quels leviers d’action pour les pouvoirs publics ?
Authors: ELGAAIED-GAMBIER Leila , BERTRANDIAS Laurent
Published: July 2021

Les pouvoirs publics disposent de moyens puissants pour faire évoluer les comportements, des consommateurs et des entreprises. Ce chapitre dresse un panorama des leviers d’action environnementale envisageables, à savoir la coercition, les incitations fiscales, la sensibilisation et les nudges verts. Il démontre également que le marketing peut renforcer l’efficacité des politiques publiques en faveur de l’environnement, notamment en adoptant les principes du mégamarketing pour accroître la légitimité des mesures.
The sensitivity of the ice-nucleating ability of minerals to heat and the implications for the heat test for biological ice nucleators
Authors: Daily Martin Ian , Tarn Mark Duncan , Whale Thomas Francis , Murray Benjamin John
Published: July 2021

Abstract. Ice-nucleating particles (INPs) are atmospheric aerosol particles that can strongly influence the radiative properties and precipitation onset in mixed-phase clouds by triggering ice formation in supercooled cloud water droplets. The ability to distinguish between INPs of mineral and biological origin in samples collected from the environment is needed to better understand their distribution and sources, but this is challenging. A common method for assessing the relative contributions of mineral and biogenic INPs in samples collected from the environment (e.g., aerosol, rainwater, soil) is to determine the ice-nucleating ability (INA) before and after heating, where heat is expected to denature proteins associated with biological ice nucleants. The key assumption is that the ice nucleation sites of biological origin are denatured by heat, while those associated with mineral surfaces remain unaffected; we test this assumption here. We exposed atmospherically relevant mineral samples to wet heat (INP suspensions warmed to above 90 °C) or dry heat (dry samples heated to 250 °C) and assessed the effects on their immersion mode INA using a droplet freezing assay. K-feldspar, thought to be the dominant mineral-based atmospheric INP type where present, was not significantly affected by wet heating, while quartz, plagioclase feldspars and Arizona test Dust (ATD) lost INA when heated in this mode. We argue that these reductions in INA in the aqueous phase result from direct alteration of the mineral particle surfaces by heat treatment rather than from biological or organic contamination. We hypothesise that degradation of active sites by dissolution of mineral surfaces is the mechanism in all cases due to the correlation between mineral INA deactivation magnitudes and their dissolution rates. Dry heating produced minor but repeatable deactivations in K-feldspar particles but was generally less likely to deactivate minerals compared to wet heating. We also heat tested proteinaceous and non-proteinaceous biogenic INP proxy materials and found that non-proteinaceous samples (cellulose and pollen) were relatively heat resistant. In contrast, the proteinaceous ice-nucleating samples were highly sensitive to wet and dry heat, as expected, although their activity remained non-negligible after heating. We conclude that, while INP heat tests have the potential to produce false positives, i.e., deactivation of a mineral INA that could be misconstrued as the presence of biogenic INPs, they are still a valid method for qualitatively detecting proteinaceous biogenic INP in ambient samples, so long as the mineral-based INA is controlled by K-feldspar.
Clumped isotope evidence for Early Jurassic extreme polar warmth and high climate sensitivity
Authors: Letulle Thomas , Suan Guillaume , Daëron Mathieu , Rogov Mikhail , Lécuyer Christophe , Vinçon-Laugier Arnauld , Reynard Bruno , Montagnac Gilles , Lutikov Oleg , Schlögl Jan
Published: July 2021

Abstract. Periods of high atmospheric CO2 levels during the Cretaceous-Early Paleogene (~140 to 33 My ago) were marked by very high polar temperatures and reduced latitudinal gradients relative to the Holocene. These features represent a challenge for most climate models, implying either higher-than-predicted climate sensitivity to atmospheric CO2, or systematic biases or misinterpretations in proxy data. Here, we present a reconstruction of marine temperatures at polar (>80°) and mid (~40°) paleolatitudes during the Early Jurassic (~180 My ago) based on the clumped isotope (Δ47) and oxygen-isotope (δ18Oc) analyses of mildly buried pristine mollusc shells. Reconstructed calcification temperatures range from ~8 to ~18 °C in the Toarcian Arctic and from ~24 to ~28 °C in Pliensbachian mid-paleolatitudes. These polar temperatures were ~10–20 °C higher than present along with reduced latitudinal gradients. Reconstructed seawater oxygen isotope values (δ18Ow) of −1.5 to 0.5 ‰ VSMOW and of −5 to −2.5 ‰ VSMOW at mid and polar paleolatitudes, respectively, point to a significant freshwater contribution in Arctic regions. This highlight the risk of assuming the same δ18Osw value for δ18O-derived temperature from different oceanic regions. These findings provide critical new constraints for model simulations of Jurassic temperatures and δ18Osw values and suggest that high climate sensitivity is a hallmark of greenhouse climates since at least 180 My.
Tectonically and climatically driven mountain-hopping erosion in central Guatemala from detrital 10Be and river profile analysis
Authors: Brocard Gilles , Willenbring Jane Kathrin , Salles Tristan , Cosca Michael , Guttiérez-Orrego Axel , Cacao Chiquín Noé , Morán-Ical Sergio , Teyssier Christian
Published: July 2021

Abstract. The rise of a mountain range affects moisture circulation in the atmosphere
and water runoff across the land surface, modifying the distribution of
precipitation and drainage patterns in its vicinity. Water routing in turn
affects erosion on hillslopes and incision in river channels on surrounding mountain ranges. In central Guatemala, two parallel, closely spaced mountain ranges formed during two consecutive pulses of uplift, the first between 12 and 7 Ma (Sierra de Chuacús–Sierra de las Minas), and the second after 7 Ma (Altos de Cuchumatanes). We explore the climatic and tectonic processes through which the rise of the most recent range drove the slowing of river incision and hillslope erosion over the previously uplifted range. The 40Ar/39Ar dating of perched volcanic deposits documents the sequential rise and incision of these mountain ranges. Terrestrial cosmogenic 10Be in river sediments indicates that currently hillslopes in the older range erode more slowly than in the younger range (20–150 vs. 300 m Myr−1). These differences mimic the current distribution of precipitation, with the younger range intercepting the atmospheric moisture before it reaches the older range. River channel steepness and deformation of paleovalleys in the new range further indicate that the younger range has been rising faster than the older range up to today. We review how atmospheric moisture interception and river long-profile adjustment to the rise of the new range have contributed to the decline of erosion rates over the old range. We also explore the consequences of this decline and of aridification on the topographic evolution of the older range. The older range undergoes a slow topographic decay, dominated by backwearing, by the stacking of slowly migrating erosion waves along the mountain flanks, and by the formation of pediments around its base. The morphology of the old range is therefore transitioning from that of a front range to that of a dry interior range.
Complications in the treatment of periprosthetic joint infection of the hip: when do they occur?
Authors: Li Katherine , Cuadra Mario , Scarola Gregory , Odum Susan , Otero Jesse , Griffin William , Springer Bryan D.
Published: July 2021

Abstract. Prosthetic joint infection (PJI) is a devastating complication after total
hip arthroplasty (THA). The common treatment in the USA is a two-stage
exchange which can be associated with significant morbidity and mortality.
The purpose of this study was to analyze complications in the treatment
course of patients undergoing two-stage exchange for PJI THA and determine
when they occur.
Methods:
We analyzed all patients that underwent two-stage exchange arthroplasty for
treatment of PJI after THA from January 2005 to January 2018 at a single
institution. Complications were categorized as medical or surgical and divided
into interstage and post-reimplantation. Minimum follow-up was 1 year.
Success was based on the MusculoSkeletal Infection Society (MSIS)
definition.
Results:
205 hips (203 patients) underwent first stage of planned two-stage exchange.
The median age was 68 (interquartile range (IQR) 18). There were 97 males and 106 females.
Overall, 73/205 (38 %) patients had at least one complication during
treatment: 13.5 % (25/185) of patients experienced a medical complication
and 28.1 % (52/185) a surgical complication; 2.4 % died within 1 year
of surgery, and 4.9 % (15/203) had mortality at a median of 2.5 years (IQR 4.9); 27 % of patients had complications during the interstage period, most commonly being recurrence of infection requiring additional surgery
(63 %); and 14 % of patients experienced a complication following
reimplantation, most commonly persistence or recurrence of infection
(59 %). While 92 % of patients that initiated treatment were ultimately
reimplanted, only 69 % were infection free at 1 year and required no
additional treatment.
Conclusions:
While two-stage exchanges for PJI in THA have been reported as successful,
there are few reports of the complications during the process. In our
series, significant numbers of patients experienced complications, often
during the interstage period, highlighting the morbidity of this method of
treatment.
The ‘punches behind the punch’: poetry as Victim Impact Statement
Authors: Anae Nicole
Published: July 2021

Recent years have seen developments in the affective function and textual form of Victim Impact Statements (VIS). First introduced in South Australia with the legislative institution of a new Act – the Criminal Law (sentencing) bill – taking effect in January 1989, VIS have since been adopted by almost every Australian state and territory as material tendered before the court by prosecutors for the purposes of informing the judge of the degree and extent of any loss or damage to property or any physical or mental harm, suffered by a victim as a result of a crime. In this paper, I explore the creative form VISs can take by looking specifically at examples of poetry as VIS. Presenting victims’ accounts of emotional and physical suffering using the form of poetry tracks affective shifts in the cultural expression of emotion and the political forums in which such expressions emerge publicly. From the perspective of humanism, I argue the poetry found in VISs present dual functions, both affective and rational.
Writing domestic violence in Marian Keyes’ This Charming Man (2008)
Authors: O'Mahony Lauren , Trees Kathryn
Published: July 2021

Popular fiction for women has been variously criticised and derided for a focus on

romance plots and superficial themes. Marian Keyes, a prolific author of contemporary

women’s popular fiction, however, utilises romance to explore serious contemporary

issues. This paper examines the representation of one of these serious issues, domestic

violence, in Keyes’ novel This Charming Man (2008). The novel’s multi-story plot

gradually weaves together the histories and experiences of four female protagonists

from their individual points of view. Each protagonist has had a romantic involvement

with one ‘charming man’, the rich and powerful Irish politician Paddy de Courcy.

Chapters devoted to each woman are interspersed with short vignettes that recount

moments of Paddy’s violent behaviour. The narrative organisation of _This Charming

Man_ represents domestic violence in a way that prioritises healing, physically, mentally

and emotionally, for the protagonists through telling their stories and sharing those

stories with other characters and readers. This form of creative writing prompts reader

engagement and reflection. Such readerly engagement may increase awareness of this

issue and potentially lead readers to actively seek change in their own lives.
Power in the moment: using autoethnographic narrative to unlock understandings of collaborative performance
Authors: Brown Judith
Published: July 2021

Autoethnography provides a useful and valid way to research collaborative music

performance as it enables the researcher to study their personal practice in relation to

other musicians. However, the representation of data from collaborative performance

creates some problems. It is here that narrative plays a vital role in being able to

capture the essence of the moment from the perspective of the performer, through the

use of evocative text. In examining the musical collaboration between a pianist and a

choir, the analysis of the narrative data provides a rich understanding of the unseen

aspects of collaborative practice in music performance, while also providing an

exemplar for other creative artists who are researching the experience of artistic

practice. This case study demonstrates that evocative autoethnographic narrative is a

significant tool for this type of research activity, and can have wide application in the

creative arts.
Study of Information Communication Technology and Economic Growth Performance in Southeast Asian Countries
Authors: Ferdy Firmansyah Muhamad , Ihsaan Rizqulloh Muhammad , Zulian Maulana Haikal
Published: July 2021

Information and communication technology is a set of tools or technology which in terminology includes all technical tools for processing and also disclosing informationInformation and communication technology, including media technology, has been growing in the era of globalization. The development of this technology has an impact on changes in people's behavior in the use of mass media and in the end also changes the pattern of effective community development in the digital era as it is today. The development of information and communication technology has brought many changes to human life in the world. Humans are able to penetrate time and space by using technology based on information and communication technology. This study uses secondary data obtained from the World Bank Indocator and the International Telecommunication Union. The method used is a quantitative method with panel data regression from 2010-2019 in eight Southeast Asian countries namely Brunei, Cambodia, Indonesia, Malaysia, Singapore, Philippines, Thailand and Vietnam. The variables used in this study are Economic Growth, ICT Trade Export, ICT Trade Import, Landline Telephone, Mobile Phone, Internet Users, Internet Secure Servers, Fixed Broadband, and Foreign Direct Investment. This study forms three models, namely model 1 for research on Trade Export of ICT, model 2 for research on Trade Import of ICT and model 3 for research on Economic Growth and ICT. The results showed that model 1 found only Fixed Broadband which had a significant influence on ICT exports. In model 2 there are Mobile Phone and Fixed Boradband which have a significant influence on the import of ICT. While in model 3 only Foreign Direct Investment has a significant influence on economic growth.
Quando a arma é a notícia:
Authors: Sanchotene Carlos , Marques Daniela Nogueira
Published: July 2021

A partir do contexto das chamadas fake news, o objetivo deste artigo é entender como ocorre a disseminação de uma notícia falsa causa nas redes sociais digitais. Para tanto, foi elaborada uma pesquisa qualitativa sobre o caso da policial militar que matou um assaltante na porta de uma escola em Suzano, região metropolitana de São Paulo, em maio de 2018. Foram analisadas oito matérias retiradas de sites e do Facebook. O objeto de análise contribui para a compreensão do rumor como dispositivo social. Além disso, destacamos a web enquanto fonte de informação e o processo de adaptação do jornalismo a nova lógica midiatizada.
catedral de Guadix
Authors: Cambil Hernández María
Published: July 2021

La catedral de Guadix (Granada, España), es un magnifico edificio de gran valor histórico artístico, símbolo de identidad de esta ciudad y la joya de su patrimonio cultural. La historia de su construcción es compleja y estuvo marcada por diferentes circunstancias sociales, económicas y políticas que determinaron que se alargará en el tiempo, abarcando un arco cronológico que va desde el siglo XVI al XVIII. El objetivo de este artículo es acercarnos a la historia de este edificio mostrando los enigmas presentes en su construcción que a pesar de los numerosos trabajos de investigación publicados y la abundante documentación, aún en la actualidad están pendientes de resolver, así como las peculiaridades que hacen de ella una de las catedrales más bellas de patrimonio histórico artístico andaluz.
An extension of TOPSIS based on linguistic terms in triangular intuitionistic
fuzzy structure
Authors: Saeed Muhammad , Mehmood Asad , Anwar Amna
Published: July 2021

Chen [24] introduced the extension of TOPSIS in the fuzzy
structure, while this article stretches the modern approach of TOPSIS to
the intuitionistic fuzzy framework. Linguistic terms are used in this study
to evaluate the weight of each criterion and the rating of alternatives in
the context of a triangular intuitionistic fuzzy number. A new intuitionistic fuzzy positive ideal solution (IFPIS) and intuitionistic fuzzy negative ideal solution (IFNIS) are proposed in this model of extended TOPSIS. Euclidean distance is introduced between two triangular intuitionistic fuzzy numbers to calculate separation between each alternative to both
(IFPIS) and (IFNIS). The proposed model’s mechanism is presented with
the help of an algorithm, and then it is applied to the personal selection
problem. Finally, a comparative study is given between this model and
other TOPSIS techniques.
Exact Analytical Solutions of Linear Dissipative Wave Equations via Laplace
Transform Method
Authors: Jamil Muhammad , Khan Rahmat Ali , Shah Kamal
Published: July 2021

A wave phenomena evolved day after day, as various concepts
regarding waves appeared with the passage of time. These phenomena
are generally modelled mathematically by partial differential equations
(PDEs). In this research, we investigate the exact analytical solutions
of one and two dimensional linear dissipative wave equations which are
modelled by second order PDEs with use of some initial and boundary
conditions. We use double Laplace transform (DLT) and triple Laplace
transform (TLT) methods to determine these exact analytical solutions.
We provide examples with figures to test effectiveness of this scheme of
Laplace transform
Instrumente de realizare a dreptului constituțional la întruniri și participări în spațiul digital din Republica Moldova
Authors:   Universitatea de Stat din Moldova, Țărnă Alexandru
Published: July 2021

Protecția drepturilor fundamentale ale omului a devenit o axiomă ce nu mai necesită lux de argumentare. În altă ordine de idei, în prim plan începe să iasă protecția drepturilor omului pe internet. Aceasta cu atât mai mult, cu cât internetul joacă un rol important în viața cotidiană a oamenilor și în toate aspectele societății umane. Impactul internetului asupra activității sociale, economice și culturale este, de asemenea, în creștere. Cercetarea științifică va fi consacrată următoarelor aspecte ce țin de întrunirile și participările în spațiul digital din Republica Moldova: (1) Libertatea de alegere a paginilor web, a aplicațiilor sau altor servicii pentru constituirea, aderarea la, mobilizarea și participarea în grupuri și adunări sociale; (2) Dreptul la protestul pașnic online; (3) Libertatea de a utiliza instrumente online disponibile pentru a participa la dezbateri de politică publică la nivel local, național și global, inițiative legislative și la scrutinul public.
Considerațiuni generale privind actul administrativ (partea II)
Authors:   Universitatea de Stat din Moldova, Vitiuc Victor
Published: July 2021

Actul administrativ reprezintă una din formele prin care autoritatea publică îşi realizează misiunea, fiind cea mai importantă dintre acestea din punct de vedere juridic. Codul administrativ introduce concepte noi și reglementează activitatea administrativă care reprezintă totalitatea actelor administrative individuale și normative, contractele administrative, actele reale și operațiunile administrative realizate de autoritățile publice în regim de putere publică, fiind posibilă astfel organizarea aplicării legii și aplicarea nemijlocită a legii.
Роль Министерства юстиции Республики Молдова в управлении системой юридической помощи, гарантируемой государством
Authors:   Молдавский Государственный Университет, Сухов Вадим
Published: July 2021

Международные стандарты права на юридическую помощь требуют от государств создания доступных и эффективных систем бесплатной юридической помощи. В статье рассматривается роль Министерства юстиции Республики Молдова в управлении системой гарантированной государством юридической помощи. Сделан вывод, что функции Министерства юстиции, предусмотренные Законом о гарантированной государством юридической помощи, соответствуют международным стандартам.
Protection and safety of individuals: challenges of human security in a global context
Authors:   The Institute of Legal, Political and Sociological Research of the Ministry of Education,  Culture and Research of the Republic of Moldova, Sprincean Serghei , Sohotchi Tudorita-Sanda ,   Moldova State University, Mitrofanov Ghenadie ,   Moldova State University
Published: July 2021

The process of re-evaluating the extent of military threats in the context of ensuring international security was determined by the end of the Cold War. In this context, the perception of security was attributed to the general assessment of the possible security threats and risks. Based on this fact, the security of the person, of the human individual, was conceived as a fundamental element of the security system construction, including the subsystem of the national security assurance. Therefore, the security phenomenon has been reinvented, reevaluated and realized in the context of new realities, so that the importance of state security has diminished, being replaced by the concerns about new risks, dangers and threats related to climate change, social processes, degradation of ecology and environment, etc. As a result, an increase of in the importance of the non-military security dimensions has been generated. Human security, as a new constructivist conception in security studies, has led to the emergence of new perspectives on security as a global social phenomenon, being a conception produced by the critical approach to neorealism. Human security involves ensuring the protection of individuals taken individually, but also as a social whole. This is possible by ensuring the living conditions and fundamental needs of the human person. Individual safety is based on strategic benchmarks that highlight the purpose of educating, training and developing the fundamental qualities and virtues of the person, in order to prepare him to face the risks and threats related to security. Namely, these benchmarks are the basis for strengthening the mechanisms for ensuring human security at the beginning of the XXI century. The article analyzes the process of ensuring human security in the conditions of globalization, highlighting the ways to achieve global changes in security, the investigations being directed mainly to highlight the current processes of reconfiguring positions and resizing democratization in the context of improving mechanisms that ensure the security of the human person and of humanity as a whole.
Instruments for the implementation of the constitutional right to assemblies and participations in the digital space from Moldova
Authors:   Moldova State University, Tarna Alexandru
Published: July 2021

The protection of fundamental rights has become an axiom that no longer requires the luxury of argumentation. From another point of view, the protection of human rights on the Internet is only emerging. This is all the more so, as the internet plays an important role in people’s daily lives and in all aspects of human society. The impact of the Internet on social, economic and cultural activity is also growing. The scientific research will be devoted to the following aspects related to meetings and participations in the digital space in the Republic of Moldova: (1) freedom to choose web pages, applications or other services for setting up, joining, mobilizing and participating in groups and social assemblies; (2) the right to peaceful online protest; (3) freedom to use available online tools to participate in local, national and global public policy debates, legislative initiatives and public elections.
Développement financier : cas des pays de la zone UEMOA (Burkina Faso, Côte d’Ivoire et Mali)
Authors: Kouadio Daouda SOMAN , Van-Brentano NDOUNIAMA ONIONGUI , Bentahar HACHEMI
Published: July 2021

L’objet de ce papier est de connaître quel est le pays qui a le niveau de développement financier le plus élevé sur la période allant de 1975 à 2020. Pour se faire, nous avons utilisé l’analyse en composantes principales (ACP) afin d’avoir l’indice composite de chaque pays. Après comparaison des différents indices composites via l’ACP, les résultats montrent avec évidence que, pour le cas du Mali, la première valeur propre indique que la première composante principale explique plus de 71,509% de l’inertie totale (et plus de 74,564% respectivement 89,234%) pour la Côte d’Ivoire et le Burkina Faso. Par-là, nous pouvons dire que le Burkina Faso a le niveau de développement financier le plus élevé.
Substantiation of an Economically Feasible Option for Ordering Unmanned Aerial Vehicles for Joint Aviation Groups
Authors: Herasymenko Volodymyr V. , Lutsyk Julia O. , Demenev Olexander M. , Mirnenko Volodymyr I.
Published: July 2021

This study offers a solution to one of the problems that arise in the routine practice of the Head managers of the Ukrainian Armed Forces and Ministry of Defence – budgetary units when making management decisions. Namely, the search for the most economical (cost saving) option for placing an order between several potential contractors to save budgetary funds, minimise possible risks of exceeding the customer's costs, and organisation of rational spending of financial resources. The purpose of the study is to determine the mechanisms for rapid replenishment of losses of defence products due to the early distribution of defence orders among manufacturers with savings in budgetary funds. To solve the stated problem, an approach was proposed using a statistical method of quantitative risk analysis based on two indicators: the probability of savings and the risk of not receiving the expected savings. An example of using the proposed approach is given for two alternative options for placing an order for unmanned aerial vehicles to create joint aviation groups between three potential contractors. The proposed mechanism for summarising calculations in the final table, acceptable for analysis and allows making the final decision in the management link. In contrast to the approaches used in developed economies, the proposed approach takes into account the capabilities of the manufacturer in terms of production volumes and short deadlines for the production of defence products. Notably, the approach in question can be applied if there are more than two alternative options for the distribution of orders and for more than three potential contractors
Structural Modelling of the Relationship between the Vulnerability of Ukrainian Regions to COVID-19, Environmental Status and Factors of Readiness of the Medical System
Authors: Kuzmenko Olha V. , Kashcha Mariya O. , Marchenko Roman V.
Published: July 2021

The division of the regions of Ukraine into “red”, “orange”, “yellow” and “green” zones are the consequences of the differentiated regional impact of the pandemic caused by the COVID-19 virus, but the reasons for such different vulnerabilities have not been clarified yet. The purpose of the study is to construct a system of regression equations containing implicit variables that are common characteristics of industries and help to analyse relationships in a complex system. The methodological tools of the study were: review of current scientific trends using VOSViewer 1.6.10, the main component method, which allows selecting the most significant factors and model with structural equations that reflect the relationship between the three areas of activity. 25 oblasts of Ukraine were selected as the object of the study, since they have different levels of vulnerability to the pandemic and can become a model for studying the regional differentiation of any country. The study presents the results of an empirical analysis of the structure of three areas of activity of the country. Modelling of structural equations to establish the relationship between the factors of vulnerability of the regions of Ukraine from the COVID-19 pandemic, the environmental state and the state of readiness of the medical system is carried out. It is theoretically substantiated that there is a direct connection between the studied areas: environmental, medical and epidemiological, and that deterioration in one industry leads to deterioration in another. The results obtained prove that it is possible to influence the differentiated course of the pandemic, but not after the event. A consistent increase in funding from the state budget for healthcare would have a greater effect, with sufficient financial support for environmental protection. The choice of state strategies must be approached comprehensively, because a narrow reform of the system, such as medical, will not give the maximum effect, without an innovative policy in the field of ecology
Securities Custody Services: International Experience
Authors: Roshylo Violetta I.
Published: July 2021

The relevance of the study is explained by the underdevelopment of the securities market in Ukraine, which barely started establishing the institutions and mechanisms of a market economy. Ukraine has a decentralised system of depository services, which hinders the development of the stock market, because the decentralised system of accounting for rights to securities complicates the procedure of transactions and increases risks. The purpose of the study was to investigate the international experience of securities depository in the rapidly expanding securities markets, especially in Eastern Europe and Asia, their technology, identifying their new functionality and dominant models of their architecture in the context of regulation, interaction of market participants and protection of their property rights. The main methods of study of international experience in the provision of securities custody services were empirical, analytical, and inductive methods, which together allowed describing the systems of securities circulation in different countries, analysing them to identify common features that are important for their implementation in Ukraine for integration into the global system of redistribution of financial resources. The study considered various securities storage systems, national depository systems, covered the features of national mechanisms of interconnection of all participants in the securities market, identified conceptual problems of securities market organisation in Ukraine, substantiated the need to adapt international experience for institutional development of the national depository system of Ukraine. The materials of the study have practical value for the development of the depository system in Ukraine as a basis for the functioning of the securities market, compatible with technological international depository systems in full functionality, which guarantees investors' property rights and enables Ukraine to become a full-fledged redistributor of global financial resources and, accordingly, to attract investments for economic development pursuant to international rules and standards of “transparent” functioning of securities markets, thus putting institutional barriers to corruption influences. The comparative analysis of depository systems of different countries allowed covering weaknesses in the existing depository system of Ukraine, outlining the conceptual approaches to legislative and organisational actions on its development