bluuebunny/crossref_metadata_2025 huggingface dataset:
Intracranial, intraocular and ocular perfusion pressures: differences between morning and afternoon measurements
Authors: Siaudvytyte Lina , Daveckaite Akvile , Januleviciene Ingrida , Ragauskas Arminas , Siesky Brent , Harris Alon
Published: April 2021

Purpose: To assess how intracranial pressure (ICP), intraocular pressure (IOP) and ocular perfusion pressure (OPP) differ between the morning and the afternoon in healthy subjects.Design: Prospective pilot study.Methods: Ten healthy subjects age 26.5 (1.2) years were included in the prospective pilot study. For each participant, blood pressure, heart rate, IOP, ICP and calculated OPP, translaminar pressure difference (TPD) were assessed two times per day, in the morning (9 ± 1 a.m.) and afternoon (2 ± 1 p.m.) by the same experienced operator. Best-corrected visual acuity and body mass index were also evaluated. TPD was calculated as IOP minus ICP. ICP was measured using a non-invasive two-depth transcranial Doppler device. P < 0.05 was considered significant.Results: Mean ICP was higher during afternoon (10.09 (1.8) mmHg) compared to morning ICP (9.80 (2.2) mmHg), but the difference was not statistically significant (p = 0.14). By analyzing ICP according to different refractive errors categories, we found that emmetropic patients had higher ICP (morning 11.94 (3.0), afternoon 11.5 (2.6) mmHg), compared to myopic (accordingly, 9.14 (1.2) and 9.72 (1.3) mmHg) or hypermetropic (accordingly, 8.85 (0.7) and 9.17 (0.8) mmHg) patients, but the difference was not statistically significant (p > 0.05). We also found that higher OPP in the morning was correlated to lower TPD (r = -0.65; p = 0.04).Conclusion: We found no significant variations in ICP, IOP or OPP during morning and afternoon in young healthy subjects. Higher OPP was related to lower TPD in the morning. Further prospective studies are warranted to investigate diurnal ICP variations in glaucoma patients to understand if fluctuations in ICP and TPD may contribute to the disease process.
An imaged-based inverse finite element method to determine in-vivo mechanical properties of the human trabecular meshwork
Authors: Pant Anup D. , Kagemann Larry , Schuman Joel S. , Sigal Ian A. , Amini Rouzbeh
Published: April 2021

Aim/Purpose: Previous studies have shown that the trabecular meshwork (TM) is mechanically stiffer in glaucomatous eyes as compared to normal eyes. It is believed that elevated TM stiffness increases resistance to the aqueous humor outflow, producing increased intraocular pressure (IOP).It would be advantageous to measure TM mechanical properties in vivo, as these properties are believed to play an important role in the pathophysiology of glaucoma and could be useful for identifying potential risk factors.  The purpose of this study was to develop a method to estimate in-vivo TM mechanical properties using clinically available exams and computer simulations.Design: Inverse finite element simulationMethods: A finite element model of the TM was constructed from optical coherence tomography (OCT) images of a healthy volunteer before and during IOP elevation. An axisymmetric model of the TM was then constructed. Images of the TM at a baseline IOP level of 11, and elevated level of 23 mmHg were treated as the undeformed and deformed configurations, respectively. An inverse modeling technique was subsequently used to estimate the TM shear modulus (G). An optimization technique was used to find the shear modulus that minimized the difference between Schlemm’s canal area in the in-vivo images and simulations.Results: Upon completion of inverse finite element modeling, the simulated area of the Schlemm’s canal changed from 8,889 μm2 to 2,088 μm2, similar to the experimentally measured areal change of the canal (from 8,889 μm2 to 2,100 μm2). The calculated value of shear modulus was found to be 1.93 kPa,  (implying an approximate Young’s modulus of 5.75 kPa), which is consistent with previous ex-vivo measurements.Conclusion: The combined imaging and computational simulation technique provides a unique approach to calculate the mechanical properties of the TM in vivo without any surgical intervention. Quantification of such mechanical properties will help us examine the mechanistic role of TM biomechanics in the regulation of IOP in healthy and glaucomatous eyes.
Crisis y autogestión en el siglo XXI
Authors:   Universidad de Buenos Aires, Argentina, Ruggeri Andrés
Published: April 2021

Cuando en diciembre de 2001 el estallido del modelo neoliberal en Argentina puso los ojos del mundo en los grandes movimientos sociales surgidos o potenciados en el contexto de la enorme crisis que el país atravesaba, activistas y académicos de los países centrales, generalmente vinculados al movimiento antiglobalización, vieron con interés uno de los más llamativos y esperanzadores de esos movimientos, las fábricas ocupadas por sus obreros o, más propiamente, las empresas recuperadas por sus trabajadores. Aunque sabemos que los casos de autogestión obrera en el marco de empresas y fábricas quebradas, vaciadas o abandonadas por sus patrones no carecían de antecedentes históricos, tanto en Argentina como en otras partes del mundo, era la primera vez que se convertían, por lo menos en los últimos decenios, en un movimiento con características e identidad propias.
La economía política empíricamente fundamentada e históricamente contextualizada de Celso Furtado
Authors:   Universidad Autónoma de Zacatecas, Cypher James M.
Published: April 2021

Celso Furtado, creador de la economía política estructuralista latinoamericana, llamó la atención del mundo con la construcción de un proyecto factible de desarrollo nacional para Brasil.Sofisticado defensor del cambio estructural, Furtado representó a un reformismo radical y de vanguardia basado en el análisis pragmático del subdesarrollo, «la» condición subyacente de las naciones periféricas. El objetivo de este artículo es ofrecer tanto una síntesis como una evaluación de sus contribuciones al campo de la economía política como parte de la teoría del desarrollo. La hipótesis central de este artículo plantea que la postura metodológica y analítica de Furtado —en particular el enfoque dinámico e históricamente contextualizado y la tendencia a centrar el desarrollo en la capacidad tecnológica— merece más amplia aceptación y mayor aclamación. Una hipótesis adicional sostiene que, si bien el trabajo de Furtado se asemeja al trabajo del institucionalismo radical estadounidense en su etapa inicial (particularmente el trabajo de Veblen), tanto Furtado como sus seguidores perdieron la importante oportunidad de explorar complementariedades y sinergias que quizá hubieran forjado una perspectiva más robusta para renovar el desarrollismo furtadiano en la actualidad a lo largo de América Latina.
Ordeñando las rocas: lecciones del fracking para la ciencia y la tecnología
Authors:   Universidad Autónoma de Zacatecas, Foladori Guillermo
Published: April 2021

Uno de los resultados de la tecnociencia que más reclamos y movilizaciones de las organizaciones civiles ha desatado en las últimas dos décadas es el fracking. En este artículo se analiza el surgimiento y desarrollo del método de extracción por fractura hidráulica y las diferentes contradicciones sociales asociadas. A partir de dicho contexto se sugiere una enseñanza sociológica derivada del creciente distanciamiento entre la ciencia y la tecnología para satisfacer necesidades sociales, debido a que están orientadas a colaborar en la reproducción del capital, lo cual propicia a su vez un paulatino alejamiento de las organizaciones civiles del quehacer científico-técnico formal y hegemónico.
Alzheimer s Disease Classification and Detection using MRI Dataset
Authors:   Computer Science and Engineering, Mar Athanasius College of Engineering, Kothamangalam, Kerala, India., V P Suhaira , S Sita ,   Computer Science and Engineering, Mar Athanasius College of Engineering, Kothamangalam, Kerala, India., George Prof. Joby ,   Associate Professor and Head, Computer Science and Engineering, Mar Athanasius College of Engineering, Kothamangalam, Kerala, India
Published: April 2021

Alzheimer’s disease (AD) is a hereditary brain condition that is incurable and progresses over time. Patients with Alzheimer’s disease experience memory loss, uncertainty, and difficulty speaking, reading, and writing as a result of this condition. Alzheimer’s disease eventually affects the portion of the brain that controls breathing and heart function, leading to death. This framework proposes the OASIS (Open Access Series of Imaging Studies) dataset, which contains the existing MRI data set, which is comprised of a longitudinal sample of 150 subjects aged 60 to 96 who were all acquired on the same scanner using similar sequences. This paper uses a combination of brain MRI scans and psychological parameters to predict disease with high accuracy using various classifier algorithms, and the results can be compared to improve performance.
Marimba Solis Performance with Repertoar the Variation on Theme (from the Malay's "Pucuk Pisang")
Authors:   Dean, Faculty of Performing Arts - Indonesian Institute of the Arts (ISI) Padang Panjang - Indonesia., Herdianto* Ferry
Published: April 2021

Performing the art of music in the era of the industrial revolution 4.0 experienced many changes, these changes had a big impact on industry players in terms of music marketing and consumers to enjoy music. In the era of revolution 4.0, every individual is currently required to race against each other in filling life both in education and skills. To respond to the challenges in this 4.0 era, the writer has a desire to change himself, both in ways of thinking and in skills so that the author can be useful both for self-improvement and beneficial to many audiences. On this occasion, the presenter performed a modern repertoire using marimba instruments that had different levels of difficulty. It is a challenge for the presenter to master the techniques with the difficulties inherent in each repertoire. Marimba is a type of melodic percussion instrument that is rarely known by the public. In this marimba show, the presenter presents a musical repertoire, i.e The Variation On Theme (From the Malay's “Pucuk Pisang”) the show is presented in the form of a solo marimba and accompaniment. Repertoire The Variation On Theme (From the Malay's “Pucuk Pisang”) has a difficulty level. Here the presenter is required to master and practice all the difficulties contained in the repertoire, especially basic techniques.
Online Determination of Credit Score (PAK) Application Functional Teachers
Authors:   Doctoral Student of Technology and Vocational Education, Universitas Negeri Padang - Indonesia and Lecturer of STMIK Hang Tuah Pekanbaru - Indonesia., Melyanti* Rika , Giatman Muhammad ,   Senior lecturers/professors of Technology and Vocational Education, Universitas Negeri Padang - Indonesia.
Published: April 2021

Determination of Teacher Credit Numbers (PAK) is proposed by the teacher, which are evaluated and evaluated by the Assessment Team. Calculation of credit numbers in PAK still uses manual methods using Microsoft Excel for inputting and Microsoft results as reports, errors in input such as typos and risk of accidental deletion of data still occur frequently. The DUPAK report that will be input into the PAK system is also still waiting for the Assessment Team to send the file to the Pelalawan Regency Education Office so that it takes more time to complete the functional teacher promotion report. To overcome this problem, the credit score calculation process is fast and accurate. A new web-based system, which includes all the elements that are valued by credit numbers. In the old system procedure and the new system it is not much different, the fundamental difference between the new system uses a web-based computer technology in data management that can shorten the data entry process and can overcome the obstacles of the old system.
The Status of Hindu Women from Antiquity to (Early) Modernity: A Downward Graph
Authors:   Department of World Religions and Culture, University of Dhaka., Afrin Sadia
Published: April 2021

The main purpose of this research paper is to acquire an understanding of the continuously changing status of Hindu women from antiquity (Prevedic era, c1500-1100BCE) to modernity (Early Modern Era, 18th Century). In my paper I will try to establish my point that the Hindu religion, which is seen today to subdue women the most, once esteemed them highly and with the passing centuries gradually their status degraded. Therefore the fluctuating status of Hindu women resembles a downward graph. The methodology will be historical method of qualitative research. As Primary source I will take resort to Hindu Core Scriptures (both Sruti & Smriti) and for secondary source will receive help from historical records, books, journals, reports and websites.
Health Care Professionals in the Digital Landscape in India
Authors:   Intern, Consulting and Solutioning BioQuest Solutions Pvt. Ltd., Bengaluru, India., S* Arun Kumar , Wadhwa Ankita ,   Digital Manager, Consulting and Solutioning, BioQuest Solutions Pvt. Ltd., Bengaluru, India., Gramle Dr. Amol ,   Vice President, Consulting and Solutioning, BioQuest Solutions Pvt. Ltd., Bengaluru, India.
Published: April 2021

Internet has become essential to everyone during the Covid-19 pandemic lockdown as everything went to virtual. This has made the interactions between Pharmaceutical companies and Health Care Professionals (HCPs) explore digital channels as Medical Representatives (MRs) were not able to efficiently reach the HCPs. This pioneering study was conducted to evaluate the scope of digital channels and uncover insights into the digital behavioral landscape of HCPs to reach them effectively. A proctored, PAN India survey was conducted for health care professionals across diverse specialties and the responses were collected through in-clinic visits, mobile phones (via WhatsApp & SMS) and e-mails. 407 HCPs had actively participated in this survey from across the country. Descriptive statistics were used to analyze the outcomes of this research which will help to develop programs directed at the HCPs in India to enhance their knowledge, medicine practice, HCP – patient & HCP – Pharmaceutical company interactions, engagement with the medical community and highlight the areas that they face challenges while accessing information online to better fit in this fast-growing digital landscape of the health sector. This will also cover insights to bridge both physical and digital interactions as ‘Phygital interactions’ that could be followed in the hopeful Post – Covid-19 scenario.
Effectiveness of Financial Inclusion in Economic Growth of India
Authors:   Assistant Professor, Shadan Institute of Computer Studies for Boys, Hyderabad (Telangana), India., Shekhar Sirangi Chandra , kumar Dr. A.Jothiselvamuthu ,   Assistant Professor & Research Supervisor, Department of Business Administration, Annamalai University, Chidambaram (Tamil Nadu), India.
Published: April 2021

Financial Inclusion (FI) is a significant interaction to accomplish the objective of comprehensive development. Appropriately, the Reserve Bank of India (RBI) has put forth, supported attempts to expand the entrance of basic financial services in unbanked zones, while proceeding with its strategy of guaranteeing satisfactory however feasible progression of credit to need areas of the economy. FI is conveyance of banking administrations at a reasonable cost to the immense segments of oppressed and low-pay gatherings. By FI we mean the arrangement of reasonable financial services, to be specific admittance to installments and settlement offices, investment funds, advances, and protection services by the formal framework to the individuals who are generally not offered these kinds of services by any other financial institutions due to their poor credit history. Meaning of FI emerges from the issue of financial exclusion of almost 3billion individuals from the basic financial services across the world, with just 34percent populace occupied with formal banking. India has, 135 million FI families, the second most noteworthy after china. The current paper is a modest endeavor to discover the reasons for financial exclusion in India, examine the degree and extent of FI with regards to India and propose measures to take care of the issue of financial exclusion in India.
Optimalisasi Pokdarwis Massawi Melalui Tourism Service Management Pengembangan Objek Wisata Teluk Love Jember
Authors: Prakoso Aryo , Nugroho Margaretta Andini , Prananta Rebecha
Published: April 2021

Jember has a very diverse natural, cultural and artificial tourism potential. One of the natural potentials that currently become the prima donna in Jember is Teluk Love beach, located in Sumberrejo-Ambulu-Jember. The main attraction of the Love Bay is in terms of its shape that symbolizes love, which is not possessed by other destinations in Jember. The booming existence of the Love Bay increases tourist arrivals at this destination every day, in the other hand the condition of human resources and social economic environment is not ready to face of the growth of Love Bay tourism. Weak tourism knowledge, slum social environment patterns, society economic management are some challenges in developing this Love Bay tourism. Theoretically, if a tourist destination is well managed, tourists as subjects in the tourism industry have an important role in the sustainability of a tourist destination. The tourist services needs to get special attention. If the tourists are well served, then they will feel satisfied. This is a factor driving these tourists to come back, and with the more tourists it will have an effect on improving the economic level of the community itself. Based on the problems experienced by partners, the solutions that can be offered are providing soft skills training (attitude) for tourism services, providing hard skills training (procedural), providing assistance in the form of procurement of quality improvement service.
ASSOCIATION OF SERUM PROCALCITONIN LEVEL IN THE UMBILICAL CORD BLOOD OF THE NEONATES BORN WITH PERINATAL RISK FACTORS FOR EARLY-ONSET SEPSIS.
Authors: Ghosh Somsubhra , Gayen Sibnath , Jana Debarshi
Published: April 2021

Introduction: Sepsis remains one of the most common causes of neonatal mortality and morbidity in India as also globally.
Aim:To evaluate the level of procalcitonin (PCT) in the cord blood of the neonates born with perinatal risk factors for early-onset sepsis (EOS) at a
tertiary referral hospital of Kolkata.
Materials and methods: st An observational cross-sectional study Labour room of R G Kar Medical College & Hospital, Kolkata From February 1 ,
st 2019 to July 31 , 2020.
Conclusion: This practice would represent a reduction of the potential toxicity in the newborns and in the development of bacterial resistances as
well. However, maternal prophylactic antibiotherapy decreases the incidences of vertically transmitted neonatal infections
GROOVE PANCREATITIS -A DIAGNOSTIC DILEMMA
Authors: Elizabeth Andrews Aleena
Published: April 2021

Groove pancreatitis is a segmental chronic pancreatitis that affects the groove area, classically the anatomical area between the pancreatic head, the
duodenum, and the common bile duct. The etiopathogenesis remains elusive till date, though association with alcohol abuse has been described in
literature. Imaging feature described include soft tissue mass in the groove, thickening of medial wall of duodenum, thus closely mimicking a
neoplastic aetiology and hence posing diagnostic dilemma. However classic ndings of cystic changes in the groove extending to duodenal wall
and brotic component can aid the radiologist in making an accurate diagnosis and thus avoiding unnecessary surgical intervention. Groove
pancreatitis is a disease that should be considered in the list of differential diagnosis of masses implicating the pancreatic head and medial duodenal
wall.
A COMPREHENSIVE STUDY ON THE ROLE OF LAPAROSCOPY IN ABDOMINAL TRAUMA
Authors: Akela Ankur , Ravikant Ravikant , Kumari Runni
Published: April 2021

Explorative laparotomy has been the mainstay of management in patients with blunt abdominal trauma . The advantage of laparoscopy is that it can
provide both diagnostic and therapeutic interventions for those hemodynamically stable abdominal trauma patients.
Methods: 30 patients of blunt trauma abdomen were retrospectively studied for whom laparoscopic intervention was done.
Results: In our study 30 patients with abdominal trauma were included of which 22 (76%) had penetrating trauma and 8 had blunt trauma (24%).
Among penetrating trauma, seven patients (31.8%) underwent therapeutic laparoscopy whereas diagnostic laparoscopy was done for 10 patients
(45.5%).
Conclusions: Laparoscopy can be safely performed in haemodynamically stable patients of abdominal trauma for both diagnostic and therapeutic
purposes and can help in avoiding the negative laparotomies.
Study of the application of energy generation systems with mini hydroelectric
Authors: Rojas Suarez Jhan Piero , Vergel Ortega Mawency , Orjuela Abril Sofia
Published: April 2021

Year after year, environmental studies show exponential growth in greenhouse gas emissions from thermos-electric plants and generators that use fossil fuels such as coal, oil, and natural gas, among others. This highlights the importance of an urgent calling to countries for developing to the maximum the implementation of clean and renewable energy. Being Colombia, the 4th country in the world to have a wide hydraulic capacity, it is one of the poorest in the implementation of regulations and incentives, by government entities, for the use of this resource in the generation of renewable energy, governments like China, they have understood the advantage that the use of these energy alternatives implies, being pioneers in the implementation of small plants in rural areas where access to electricity grids is difficult. The development of this type of generators opens up a range of opportunities for Colombia, but the most interesting is the possibility of diversifying the energy matrix and the advantage of being able to reach small communities and towns that do not have this benefit, such as electrical energy. At this point, the implementation of the mini-micro power stations is key, which is perfect for meeting these needs.
Supervisi Klinis dengan Pendekatan Kolaboratif dalam Meningkatkan Kualitas Pembelajaran Guru di Sekolah Menengah Pertama
Authors: Sutrisno Sutrisno
Published: April 2021

Penelitian ini bertujuan untuk meningkatan kualitas pembelajaran guru melalui supervisi klinis dengan pendekatan kolaboratif di SMP Negeri 2 Pamotan Kabupaten Rembang, Jawa Tengah. Subyek penelitian ini adalah 20 orang guru. Guru menerapkan pembelajaran jarak jauh (PJJ) karena masih dalam situasi Pandemi Covid-19. Metode penelitian ini menggunakan pendekatan kualitatif dengan teknik pengumpulan data melalui dokumen kegiatan pembelajaran dan observasi (pengamatan) pembelajaran yang dilakukan oleh peneliti dengan menggunakan instrumen supervisi klinis pendekatan kolaboratif, lembar penilaian rencana pelaksanaan pembelajaran, dan lembar penilaian pelaksanaan pembelajaran. Penelitian dirancang dalam dua siklus. Rata-rata hasil penilaian rencana pelaksanaan pembelajaran 74,35 (kategori cukup) pada siklus 1 dan 88,60 (kategori baik) pada siklus 2, berarti terjadi peningkatan 14,25. Sedangkan rata-rata hasil penilaian pelaksanaan pembelajaran jarak jauh 71,70 (katagori cukup) pada siklus 1, dan rata-rata hasil pada Siklus 2 adalah 88,10 (katagori baik), terjadi peningkatan 16,40. Hasil penelitian menunjukkan, semua guru mampu menyiapkan rancangan dan pelaksanaan pembelajaran dengan baik serta memiliki dokumen pembelajaran jarak jauh berkategori baik.
Pelaksanaan Desain Pembelajaran Instruksional pada Pandemi COVID–19 Di Indonesia
Authors: Pratiwi Dinda , Elita Immawan Hartika Rhea , Mitami Mitami , Magdalena Ina
Published: April 2021

Desain instruksional dapat diartikan sebagai proses yang sistematis untuk memecahkan persoalan pembelajaran melalui proses perencanaan bahan-bahan pembelajaran beserta aktivitas yang harus dilakukan, perencanaan sumber-sumber pembelajaran yang dapat digunakan serta perencanaan evaluasi keberhasilan. Tujuan dari penelitian ini adalah untuk melihat dampak dari pandemic COVID – 19 pada pelaksanaan desain pembelajaran instruksional di Indonesia. Metode penelitian ini menggunakan pendekatan kualitatif. Hasil dari penelitian ini adalah pandemi COVID-19 sangat membawa dampak yang signifikan dalam dunia pendidikan, terutama dalam proses pembelajaran yang dilaksanakan oleh guru. Dan dapat disimpulkan apakah pandemi COVID-19 berpengaruh atau tidak dalam penggunaan model desain pembelajaran pada proses belajar mengajar.
ЗНАЧЕНИЕ ИННОВАЦИЙ В ПОВЫШЕНИИ ЭФФЕКТИВНОСТИ ЛОГИСТИЧЕСКОГО БИЗНЕСА
Authors: Бекмурзаев И.Д. , Хажмурадова С.Д.
Published: April 2021

Исследованы теоретические основы организационно-управленческих инноваций в повышении эффективности бизнеса, практические бизнес-аспекты организационно-управленческих инноваций в повышении эффективности бизнеса. Рассмотрены организационно-управленческие инновации в повышении эффективности логистического бизнеса на примере цепочки поставок. Обосновано, что организационно-управленческие инновации являются непрерывными во времени, начиная с первоначальной идеи. Учитывая имеющиеся риски и сложность инновационного решения, предлагаются конкретные подходы в повышении эффективности логистического бизнеса на примере цепочки поставок. Внедрение инноваций в логистике требует незамедлительных решений для эффективного производственного процесса, управления и экологического воздействия на процессы логистики. Внедрение логистических инструментов повышает прибыльность компаний, способствует росту доли рынка компании, повышает скорость ее проникновения на новые рынки за счет расширения географии бизнеса логистических операторов рынка и партнеров бизнес-цепи.
CORPORATE SOCIAL RESPONSIBILITY AS A STRATEGIC POINT OF BUSINESS
Authors:   Candidate of Economic Sciences, Associate Professor of Economics industry, Plekhanov Russian University of Economics, Moscow, Russia, IGNATOVA L. N. , SERGEEV P. P. ,   Student, Kosygin State University of Russia (Technology. Design. Art), Moscow, Russia, SOBOL’ Е. A. ,   Student, Faculty of Economics and Law, Plekhanov Russian University of Economics, Moscow, Russia
Published: April 2021

The features of the implementation of the concept of socially responsible business behavior are considered, and the analysis of the main non-financial indicators of the activities of Russian Railways is carried out. Attention is focused on the need to address key tasks to improve the efficiency of corporate social responsibility.
Junge Städter zwischen Improvisation und Ausbeutung
Authors: Schilling Hannah
Published: April 2021

Dieser Artikel nimmt die Handy-Guthabenökonomie in Abidjan in der Côte d’Ivoire zum Ausgangspunkt, um städtische Wertschöpfungsprozesse im digitalen Kapitalismus zu problematisieren. Mithilfe von Konzepten der Infrastruktur und der ökonomischen Praxis zeigt der Artikel, wie soziale Beziehungen, die auf den ersten Blick außerhalb des Arbeitsprozesses stehen, funktional für Wertschöpfungsprozesse werden. Die empirische Grundlage bilden leitfadengestützte Interviews mit rund 30 Männern im Alter zwischen 18 und 35 Jahren, die in der Guthabenökonomie Abidjans arbeiten. Die Analyse arbeitet die Verschränkung von Formen der Zirkulation mit ökonomischen Praktiken heraus. Diese konstituieren (mit) den Guthabenverkauf und damit auch die Kommunikationsinfrastrukturen. Der Artikel verdeutlicht, inwiefern die Befragten ihre Tätigkeit als symbolisches Kapital beim Übergang ins Erwachsenenalter einsetzen. Gleichzeitig nutzen Unternehmen die unbezahlte Arbeit der Guthabenverkäufer für die Erschließung neuer Märkte und zur Wertschöpfung. Im Sinne einer strategischen Kosmopolitisierung der Stadtforschung zeigt der Artikel abschließend Anknüpfungspunkte für die Debatte um digitale Arbeit in der Plattform-Metropolis auf.
Common fixed points for an uncountable family of weakly contractive operators
Authors:   THEORETICAL AND COMPUTATIONAL SCIENCE (TACS) CENTER AND DEPARTMENT OF MATHEMATICS SCIENCE LABORATORY BUILDING, FACULTY OF SCIENCE KING MONGKUTS UNIVERSITY OF TECHNOLOGY THONBURI (KMUTT) 126 PRACHA UTHIT ROAD, BANG MOD, THUNG KHRU, BANGKOK 10140 THAILAND E-mail address: parin.cha@mail.kmutt.ac.th, CHAIPUNYA PARIN , KUMAM POOM ,   THEORETICAL AND COMPUTATIONAL SCIENCE (TACS) CENTER AND DEPARTMENT OF MATHEMATICS SCIENCE LABORATORY BUILDING, FACULTY OF SCIENCE KING MONGKUTS UNIVERSITY OF TECHNOLOGY THONBURI (KMUTT) 126 PRACHA UTHIT ROAD, BANG MOD, THUNG KHRU, BANGKOK 10140 THAILAND E-mail address: poom.kum@kmutt.ac.th
Published: April 2021

In this paper, we consider some behavior concerning common fixed points of an uncountable family of operators. We apply here the concept of circular metric spaces, and the operators are assumed to satisfy different rates of weak contractivity. We show under certain assumptions that weakly contractive family have some strong relationships to its common selector in terms of their fixed points.
On a generalized coupled fixed point theorem in C[0, 1] and its application to a class of coupled systems of functional-integral equations
Authors:   DEPARTMENT OF MATHEMATICS UNIVERSITY OF LAS PALMAS DE GRAN CANARIA CAMPUS DE TAFIRA BAJA, 35017 LAS PALMAS DE GRAN CANARIA, SPAIN E-mail address: jharjani@dma.ulpgc.es, HARJANI J. , ROCHA J. ,   DEPARTMENT OF MATHEMATICS UNIVERSITY OF LAS PALMAS DE GRAN CANARIA CAMPUS DE TAFIRA BAJA, 35017 LAS PALMAS DE GRAN CANARIA, SPAIN E-mail address: jrocha@dma.ulpgc.es, SADARANGANI K. ,   DEPARTMENT OF MATHEMATICS UNIVERSITY OF LAS PALMAS DE GRAN CANARIA CAMPUS DE TAFIRA BAJA, 35017 LAS PALMAS DE GRAN CANARIA, SPAIN E-mail address: ksadaran@dma.ulpgc.es
Published: April 2021

In this paper, we present a result about the existence of a generalized coupled fixed point in the space C[0, 1]. Moreover, as an application of the result, we study the problem of existence and uniqueness of solution in C[0, 1] for a general system of nonlinear functional-integral equations with maximum.
Robust H∞ Observer-Based Control Design for Discrete-Time Nonlinear Systems With Time-Varying Delay
Authors: Ding Mengying , Dong Yali
Published: April 2021

This paper investigates the problem of robust H∞ observer-based control for a class of discrete-time nonlinear systems with time-varying delays and parameters uncertainties. We propose an observer-based controller. By constructing an appropriate Lyapunov-Krasovskii functional, some sufficient conditions are developed to ensure the closed-loop system is robust asymptotically stable with H∞ performance in terms of the linear matrix inequalities. Finally, a numerical example is given to illustrate the efficiency of proposed methods.
Corrección de textos médicos divulgativos traducidos del inglés al español en el ámbito de los servicios públicos de los Estados Unidos
Authors: López Blanco Ylenia Belén
Published: April 2021

El objetivo principal de este trabajo es demostrar que los textos médicos traducidos del inglés al español que emanan de algunas de las organizaciones públicas de los Estados Unidos destinadas a la divulgación médica no cumplen los estándares de calidad necesarios para cumplir la función con la que se redactaron los textos originales: informar y educar a la población. Para ello, se elaborará un corpus de 150 textos y se corregirá y analizará un texto de cada una de las organizaciones elegidas a través de una tipología de errores creada expresamente para recoger los errores presentes en textos de esta índole. La hipótesis que se plantea, pues, es que dichos textos no se revisan antes de publicarlos y, en caso de hacerlo, dicha revisión no se lleva a cabo por profesionales de la corrección.
The Croatian psycholinguistic database: Estimates for 6000 nouns, verbs, adjectives and adverbs
Authors: Peti-Stantić Anita , Anđel Maja , Gnjidić Vedrana , Keresteš Gordana , Ljubešić Nikola , Masnikosa Irina , Tonković Mirjana , Tušek Jelena , Willer-Gold Jana , Stanojević Mateusz-Milan
Published: April 2021

Psycholinguistic databases containing ratings of concreteness, imageability, age of acquisition, and subjective frequency are used in psycholinguistic and neurolinguistic studies which require words as stimuli. Linguistic characteristics (e.g. word length, corpus frequency) are frequently coded, but word class is seldom systematically treated, although there are indications of its significance for imageability and concreteness. This paper presents the Croatian Psycholinguistic Database (CPD; available at: 10.17234/megahr.2019.hpb), containing 6000 Croatian nouns, verbs, adjectives and adverbs, rated for concreteness, imageability, age of acquisition, and subjective frequency. Moreover, we present computationally obtained extrapolations of concreteness and imageability to the remainder of the Croatian lexicon (available at: https://github.com/megahr/lexicon/blob/master/predictions/hr_c_i.predictions.txt). In the two studies presented here, we explore the significance of word class for concreteness and imageability in human and computationally obtained ratings. The observed correlations in the CPD indicate correspondences between psycholinguistic measures expected from the literature. Word classes exhibit differences in subjective frequency, age of acquisition, concreteness and imageability, with significant differences between nouns, verbs, adjectives and adverbs. In the computational study which focused on concreteness and imageability, concreteness obtained higher correlations with human ratings than imageability, and the system underpredicted the concreteness of nouns, and overpredicted the concreteness of adjectives and adverbs. Overall, this suggests that word class contains schematic conceptual and distributional information. Schematic conceptual content seems to be more significant in human ratings of concreteness and less significant in computationally obtained ratings, where distributional information seems to play a more significant role. This suggests that word class differences should be theoretically explored.
Enhanced target cell specificity and uptake of lipid nanoparticles using RNA aptamers and peptides
Authors: Ray Roslyn M , Hansen Anders Højgaard , Taskova Maria , Jandl Bernhard , Hansen Jonas , Soemardy Citra , Morris Kevin V , Astakhova Kira
Published: April 2021

Lipid nanoparticles (LNPs) constitute a facile and scalable approach for delivery of payloads to human cells. LNPs are relatively immunologically inert and can be produced in a cost effective and scalable manner. However, targeting and delivery of LNPs across the blood–brain barrier (BBB) has proven challenging. In an effort to target LNPs composed of an ionizable cationic lipid (DLin-MC3-DMA), cholesterol, the phospholipid 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC), and 1,2-dimyristoyl-rac-glycero-3-methoxypolyethylene glycol-2000 (DMG-PEG 2000) to particular cell types, as well as to generate LNPs that can cross the BBB, we developed and assessed two approaches. The first was centered on the BBB-penetrating trans-activator of transcription (Tat) peptide or the peptide T7, and the other on RNA aptamers targeted to glycoprotein gp160 from human immunodeficiency virus (HIV) or C-C chemokine receptor type 5 (CCR5), a HIV-1 coreceptor. We report herein a CCR5-selective RNA aptamer that acts to facilitate entry through a simplified BBB model and that drives the uptake of LNPs into CCR5-expressing cells, while the gp160 aptamer did not. We further observed that the addition of cell-penetrating peptides, Tat and T7, did not increase BBB penetration above the aptamer-loaded LNPs alone. Moreover, we found that these targeted LNPs exhibit low immunogenic and low toxic profiles and that targeted LNPs can traverse the BBB to potentially deliver drugs into the target tissue. This approach highlights the usefulness of aptamer-loaded LNPs to increase target cell specificity and potentially deliverability of central-nervous-system-active RNAi therapeutics across the BBB.
Helicobacter Pylori Infection with Recurrent Abdominal Pain in Children
Authors: Shoaib Muhammad , Abdullah Mirza Muhammad , Sharif Kanwal
Published: April 2021

Background: Childhood Recurrent Abdominal Pain results in the one of the adulthood complications i.e., irritable bowel syndrome, which is a gastro-intestinal disease. The stomach’s acidic environment is the growth site for Helicobacter Pylori, a pathogenic Gram-negative bacterium with rod shape. It is the main reason for chronic gastritis, gastric adenocarcinoma, peptic ulcers, non-ulcer dyspepsia and mucosa-associated lymphoid tissue (MALT) lymphoma. According to one estimate, 50% of people in world are infected with Helicobacter Pylori. Currently the developing countries are on the hit list of Helicobacter Pylori. The objective of this study was to determine the frequency of Helicobacter pylori infection in the children having recurrent abdominal pain.
Materials and Methods: It was a cross-sectional study. This research was carried out during 1.1.2018 to 1.6.2018 in the D.H.Q hospital Mirpur AJK. The sample was consisted of 200 participants among them the proportion of Helicobacter was 8% in patients with Recurrent Abdominal Pain.
Results: The mean age of the patients was 12.43 ± 1.23 years. Mostly the age of the sample group was between 8 to16 years. The 4.23 ± 0.47 months was the mean time period of abdominal pain. Helicobacter pylori was found in 47% of patients.
Conclusion: In paediatric population, Helicobacter pylori is very common with Recurrent Abdominal Pain. It is a severe problem in children and further study is recommended to explore the risk element associated with this increase trouble of Helicobacter Pylori.
Fuel Cell designing with optimal high speed air compressor
Authors: Ahsan Nabeel , Mehmood Mahrukh , Zaidi Asad A.
Published: April 2021

This paper discusses different air management technologies for fuel cell systems. Two different types of compressors are analyzed for Proton-exchange membrane fuel cells (PEMFC). Some important criteria are analyzed thoroughly for the selection of turbo compressor among different types of compressors illustrated with the help of matrix representations. The impacts of various input parameters for Fuel Cell (FC) are also explained thoroughly. Later the numerical modeling of an automobile fuel cell system using a high speed turbo-compressor for air supply is explained. The numerical model incorporates the important input parameters related with air and hydrogen. It also performed energy and mass balances across different components such as pump, fan, heat-exchanger, air compressor and also keeps in consideration the pressure drop across the flow pipes and various mechanical parts. The model is solved to obtain the characteristics of the FC system at different operating conditions. Therefore, it can be concluded that the high speed turbo compressor with a turbo-expander can have significant effects on the overall system power and efficiency.
New records in vascular plants alien to Tenerife (Spain, Canary Islands)
Authors: Verloove Filip
Published: April 2021

Recent fieldwork by the author in Tenerife, mostly between 2014 and 2019, yielded new records of alien vascular plants.

Fifteen taxa (Acacia decurrens,A. mearnsii,Caesalpinia pulcherrima,Ensete ventricosum, Eucalyptus camaldulensis subsp. arida,E. cladocalyx,Euryops chrysanthemoides,Ficus elastica,Lippia alba,Pavonia sepioides,Pittosporum tobira, Populus × canadensis,Pyrostegia venusta,Ruellia dipteracanthusandWigandia kunthii) are reported for the first time from the Canary Islands. All were initially introduced on purpose, mostly as ornamentals, and recently started to escape from cultivation. Most of them are ephemerals or only locally established, but nearly all have the potential to naturalise in the future. Thirteen additional species are reported for the first time from Tenerife:Atriplex nummularia,Bellis perennis,Chenopodium probstii,Coccoloba uvifera,Commelina benghalensis,Cuphea hyssopifolia,Eragrostis virescens,Lemna minuta,Malvastrum corchorifolium,Plerandra elegantissima,Psidium guajava,Thunbergia alataandUrochloa subquadripara. Finally, some miscellaneous notes are provided on the presence ofBalanites aegyptiaca,Callistemon viminalis,Grevillea robustaandPassiflora caeruleain Tenerife.
Phylogeny and diversity of Bjerkandera (Polyporales, Basidiomycota), including four new species from South America and Asia
Authors: Wang Chao-Ge , Vlasák Josef , Dai Yu-Cheng
Published: April 2021

Four new species of Bjerkandera, viz. B. ecuadorensis, B. fulgida, B. minispora, and B. resupinataspp. nov., are described from tropical America and Asia. B. ecuadorensis is characterised by dark grey to black pore surface, a monomitic hyphal system, hyaline to yellowish-brown generative hyphae, and ellipsoid basidiospores measuring 3.9–4.5 × 2.7–3 μm. B. fulgida is distinguished from the other species in the genus by clay buff to pale brown and shiny pore surface. B. minispora is characterised by white tomentose pore mouth and small basidiospores measuring 3.1–4.2 × 2–2.8 μm. B. resupinata is characterised by resupinate basidiomata, pinkish buff to pale brownish pore surface, and ellipsoid to broadly ellipsoid basidiospores measuring 4.5–6 × 3.2–4.1 µm. All these new species grow on angiosperm trunks or rotten wood, and cause a white rot. The closely related taxa to four new species are discussed. An identification key to the ten accepted species of Bjerkandera is provided, and a phylogeny comprising all known Bjerkandera species is provided.
Taxonomic study of the genus Ischnothyreus (Araneae, Oonopidae) from Xishuangbanna Rainforest, southwestern China
Authors: Tong Yanfeng , Sun Xiaochen , Li Shuqiang , Bian Dongju
Published: April 2021

Eight species of the genus Ischnothyreus Simon, 1893 from Xishuangbanna, Yunnan, China are recognized, including six new species: I. cristiformis Tong & Li, sp. nov. (♂♀), I. mangun Tong & Li, sp. nov. (♂♀), I. mengyang Tong & Li, sp. nov. (♂♀), I. peltifer (Simon, 1892), I. qidaoban Tong & Li, sp. nov. (♂♀), I. qiuxing Tong & Li, 2020 (♂♀), I. sijiae Tong & Li, sp. nov. (♀) and I. xiaolongha Tong & Li, sp. nov. (♂♀). The male of I. qiuxing Tong & Li, 2020 is described for the first time. Photos of the habitus and copulatory organs are provided.
A Study of Consumer Switching Behaviour in the Indian Context With Respect to Recycled Products
Authors: Agrawal Charul , Duggal Taranjeet
Published: April 2021

In recent years, the need of every corporation to address the environmental issues has grown multifold. The corporate social responsibility concerns are growing, and it has become an indicator to judge a business performance. In the context of increasing environmental concerns where issues of pollution, generation of wastes, use of toxic substances for packaging, etc. are gaining strong ground, the consumers have also become alarmed and they fully understand the implications of such issues both on nature and earth. The chapter aims to study the behaviour and the change therein of Indian consumers. It is true that all the efforts and policies targeted towards initiative of green marketing cannot be realised if it is not received by the consumers. The chapter proposes to cover the concept of green marketing and its relation to the circular economy, the green marketing practices in Indian context, the attitude and preference of the Indian consumer towards green products, and the switch in the purchase pattern of the Indian consumers with respect to green/recycled products.
A Reliable Blockchain-Based Image Encryption Scheme for IIoT Networks
Authors: N. Ambika
Published: April 2021

IoT is used in industrial setup to increase security and provide ease to the user. The manual efforts decrease in this environment. The previous work concentrates on capturing images and transmitting the encrypted image. It uses the Merkle root and blockchain to make the transmission reliable. The suggestion increases reliability to the previous work. The system uses the Merkle root to endorse the key to the transmitting devices. The work increases reliability by 2.58% compared to the previous contribution.
Blockchain and IoT-Based Diary Supply Chain Management System for Sri Lanka
Authors: Jayasena K. Pubudu Nuwnthika , Madhunamali Poddivila Marage Nimasha Ruwandi
Published: April 2021

The central problem to be addressed in this research is to investigate how blockchain technology can be used in today's food supply chains to deliver greater traceability of assets. The aim is to create a blockchain model in the dairy supply chain that can be implemented across any food supply chains and present the advantages and limitations in its implementation. Blockchain allows monitoring all types of transactions in a supply chain more safely and transparently. Acceptance of blockchain in the supply chain and logistics is slow right now because of related risks and the lack of demonstrable models. The proposed solution removes the need for a trusted centralized authority, intermediaries and provides records of transactions, improving high integrity, reliability, and security efficiency and protection. All transactions are registered and maintained in the unchangeable database of the blockchain with access to a shared file network.
Social Workers Navigating a Colonial Bureaucratic System While Also Re-Kindling Obuntu-Led Relational Social Work in Uganda
Authors: Tusasiirwe Sharlotte
Published: April 2021

Diverse contexts present to us diverse philosophies on being and knowing, which would inform diverse but equally valid ways of constructing social work around the world. However, due to enlightenment modernity and Western colonialism, social work remains resistant to embracing this diversity as, often uncritically, a social work defined from a privileged white Western perspective is imposed. The purpose of this chapter is to disrupt ongoing colonization in social work: reclaim and theorize social work as conceptualized from Obuntu/Ubuntu philosophies central in most African Bantu communities. Obuntu or Ubuntu, as it is used in different African languages, defines what being human (person/omuntu) entails including embracing values like interconnectedness, collectivism, solidarity, caring for and about others, and the environment. This chapter will first explore experiences of social workers as they navigate a colonial bureaucracy, with frustrations forcing them to re-kindle indigenous models of social work. Implications for social work in Uganda and Australian contexts are then discussed.
Cultural Identity Preservation Through Social Media
Authors: Bilge Nurhayat
Published: April 2021

This chapter explores cultural identity negotiation on social media for a specific refugee group. Previous research indicates the importance of a sense of community and cultural preservation in regards to establishing and maintaining a cultural identity for this specific group. The group, Meskhetian Turks, is an example of ethnic identity and an established ethnicity through shared history and struggle. This chapter focuses on the virtual implications of the group's identity in social media. More specifically, it explores how social media platforms serve as a cultural unifier, where cultural identity is maintained and perpetuated in the face of an unattainable physical homeland.