bluuebunny/crossref_metadata_2025 huggingface dataset:
Toplumsal Mahremiyet Dönüşümü ve WhatsApp Durum Paylaşma Özelliği İlişkisi Üzerine Bir İnceleme
Authors: AKTAŞ Adil
Published: March 2023

Sosyal medyanın insan yaşamında yoğun bir şekilde yer almasıyla birlikte mahremiyet kavramı yeniden sorgulanmaya başlanmıştır. Güvenlik politikaları gereği hayatın birçok anında güvenlik kameraları tarafından gözetleniyor veya özel bilgilerin veri depolarında toplanıyor olması hayatın normali haline gelmiştir. Bu normalleşme ağ toplumu insanının, sosyal medyanın sunmuş olduğu şeffaf, görünür, herkese açık yaşam tarzına uyumunu kolaylaştırmış, paylaşımlar mahremiyet ihlaline rağmen yapılır olmuştur. Üretilen her yeni teknolojik aletin insan yaşamına etkisi tarih boyunca gözlemlenegelen bir gerçekliktir. Ağ toplumuyla birlikte gündelik yaşamın bir parçası olan mobil akıllı telefonlar ve bu telefonlar aracılığıyla zamana ve mekâna bağlı olmaksızın kullanılabilen sosyal medya uygulamaları, kullanıcılarında yeni davranış kalıpları oluşturmuştur. Toplum içerisinde ağyardan gizlenen ve ifşa edilmesi hoş karşılanmadığı için ayıplama, kınama, dışlama gibi yaptırımlarla karşılık bulan özel durumlar, rahatlıkla toplumun nazarına sunulur hale gelmiştir. Bu durum, toplumun büyük bir kesimini oluşturan sosyal medya kullanıcılarında mahremiyet kavramının çerçevesinin genişlediğini göstermektedir. Buradan hareketle bu araştırmada, fotoğraf ve kısa video paylaşmaya imkân veren WhatsApp durum paylaşma özelliğinin, mahremiyeti dönüştürerek kullanıcılarında yeni davranış kalıpları oluşturup oluşturmadığı ilişkisel tarama modeliyle irdelenmiştir. Sosyal medyanın mahremiyet anlayışına etkisi üzerine yapılan akademik araştırmalar son zamanlarda yoğunlaşmıştır, ancak WhatsApp durum paylaşma özelliği özelinde bir araştırmaya rastlanmamıştır, bu yönüyle araştırma önem arz etmektedir. Yeniden sorgulanmaya başlanan mahremiyet kavramı ve sosyal medya üzerine literatürde yapılan tartışmalara ortak olmak, tartışmayı WhatsApp durum paylaşma özelliği bağlamında ele alarak literatüre katkı sağlamak hedeflenmiştir. Analizler sonucunda elde edilen çıkarımlardan, kullanıcılarda yeni davranış kalıpları oluştuğu, mahremiyet anlayışının değiştiği, kavramın kapsam alanının genişlediği sonucuna ulaşılmıştır.
Aynı Dine İnanma Ekseninde İlahiyat Fakültesi Öğrenci/Mezun ve Akademisyenlerinin Suriyeli Mültecilere Yönelik Tutumlarının İncelenmesi
Authors: KOÇ KANCA Hatice
Published: March 2023

Bu araştırmada, ilahiyat fakültesi öğrenci, mezun ve akademisyenlerinin Suriyeli mültecilere yönelik tutumları inceleme konusu yapılmıştır. Araştırmada yüksek din öğretimi alan ilahiyat fakültesi öğrenci ve mezunları ile bu öğretimi veren akademisyenler, Suriyeli göçmenlerle aynı dine inanma ekseninde farkındalığı nispeten yüksek bir grup olarak özellikle tercih edilmiştir. Bu çerçevede ortak dinî mirasa dair farkındalığı olan ev sahibi ülke katılımcılarının Suriyeli göçmenleri tehdit olarak algılama, kabul etme ya da reddetme alt boyutlarındaki puanlarına bakılmıştır. Araştırma, nicel araştırma yöntemlerinin genel tarama modellerinden ilişkisel tarama modeli ile yapılandırılmış betimsel bir çalışmadır. Çalışmanın evreni Türkiye genelinde rastgele olarak seçilen ilahiyat/İslami ilimler fakültesi öğrenci, mezun ve akademisyenlerinden oluşan toplam 425 kişidir. Çalışmada yarı yapılandırılmış anket formu ve “Yerel Halkın Suriyelilere Yönelik Tutum Ölçeği” kullanılmıştır. Verilerin analizi aşamasında SPSS programı kullanılarak betimsel istatistik analizi, ikili karşılaştırmalarda bağımsız gruplar için t testi ve çoklu karşılaştırmalarda tek yönlü varyans analizi (Anova), gruplar arası farklılığı ortaya koymak için post-hoc testi ve değişkenler arası ilişkiyi ortaya koymak için korelasyonel analizler kullanılmıştır.
IMPACT OF TEACHING PROCESS ON ACADEMIC ACHIEVEMENT OF PRIMARY SCHOOL STUDENTS IN TEHRI GARHWAL, UTTARAKHAND
Authors: Thapa Chetna
Published: March 2023

Teaching is an important and integral part of the process of education. It is a social process. It is a tripolar process which includes teacher, student and the curriculum. Teaching is the process of exchange of ideas or mutual interaction between the teacher and the learner by making the curriculum as a medium. It is fundamentally a process which includes planning, implementation, evaluation and revision. Phases of teaching process includes the pre active phase, inter active phase and after active phase. A study of the teaching process is important because it impacts the learning outcomes. This present study reflects the actual status of teaching process in primary schools of Tehri Garhwal, Uttarakhand and studies its impact on the academic achievement of primary school students.
ENSINO DE CIÊNCIAS, COM MATERIAIS DE FÁCIL ACESSO, NA UNIDADE INTEGRADA KLEPER AQUINO, ROSÁRIO - MARANHÃO
Authors: Souza Lays Santana , Ferreira Welberth Santos , Moreira Edvan
Published: March 2023

Referente ao docente na sociedade globalizada é possível observar que prevalecem o conhecimento científico e a competência intelectual. Ademais, o educar para entender o mundo, por meio do processo de ensino-aprendizagem proporciona novos caminhos de desenvolvimento e crescimento ao educando. Inquietude, incertezas e desafios acompanham a vida do educador, nesse século, deixando marcas pela propensão da qualidade. Mediante o exposto muitas são as interferências no processo de ensino- aprendizagem, no âmbito escolar, considerando muito importante as realizações estabelecidas em sala de aula, principalmente na relação professor-aluno. Essa experiência foi vivenciada no período do estágio com alunos do 8° ano do ensino fundamental II da Unidade Integrada Kleper Aquino, na cidade de Rosário, escola esta localizada em um dos bairros periféricos da cidade de alta periculosidade e atende uma clientela de 120 alunos, sendo 60 no período matutino e 60 no vespertino. Essa aula foi ministrada para 16 alunos no turno matutino com disponibilidade de dois horários (90 minutos). A finalidade desse relato de experiência é discutir como uma aula teórica e prática pode ter aproveitamento qualitativo não só na vida dos alunos como também na dos professores.
PRÁTICAS EDUCACIONAIS PARA O ENSINO DE CIÊNCIAS NO ENSINO FUNDAMENTAL
Authors: Santos Sarah Lorena Silva , Araújo Talessa Viegas , Correa Samara Alves , Câmara Natanyelle Pereira , Pimenta Diemerson Garcia , Ferreira Suelen Rocha Botão
Published: March 2023

A observação e vivência de práticas educacionais durante o estágio é de fundamental importância para formação acadêmica de qualquer profissional, em especial do futuro docente, onde, durante tais atividades o mesmo poderá absorver atividades desenvolvidas por profissionais que possuem anos de carreira, como também desenvolverem suas próprias técnicas de ensino, para que o processo de ensino-aprendizagem seja realizado de forma eficaz. Diante disso, o presente trabalho visa desenvolver um relato de experiência acerca do estágio em ensino fundamental, em uma escola do município de Pinheiro – MA, onde foram realizadas atividades de observação e regência, na qual a partir de tais atividades, pode-se inferir que o processo educacional no ensino fundamental necessita de práticas educacionais ativas que o ensino seja realizado de forma eficaz, além disso, a docência é uma constante troca de experiências entre aluno e professor e tais trocas permitem com que haja a efetiva construção de conhecimento em sala de aula.
New Analytical Study of Heat Transfer Analysis of Jeffery–Hamel Nanofluid Flow Problem with Porous Medium
Authors: Saja Isam Abdulridah  , Abeer Majeed Jasim
Published: March 2023

In this study, a perturbation iteration scheme (PIS), is used to investigate the flow and heat transfer of a nanofluid through a convergent or divergent channel in a porous medium for the Jeffrey Hamel flow problem. Under the influence of the magnetic field, the nanofluid continuously flows through the channel. Modeling of the motion of different nanofluids is done with the aid of momentum and energy equations. The effect of some variables such as opening channel angle, Reynolds number, Darcy number, Hartmann number, Prandtl number, and Eckert number, on nanofluidic flows through non-parallel plates has been discussed. It has been observed that as velocity rises, fluid viscosity increases with a higher Reynolds number. The internal friction also decreases as the Darcy number rises because of an increase in flow and an increase in heat transfer. Additionally, when the results of the remaining variables were examined and their effects on the velocity and temperature profiles were compared with those of related studies in the literature, a satisfactory level of agreement was found. This is clear from the tables and drawings mentioned in this manuscript, and it also shows that this approach gives us a good study for examining the Jeffrey Hamel problem.
Carbon Nanotubes (CNTs) Nanofluids Flow and Heat Transfer under MHD Effect over a Moving Surface
Authors: Nazrul Azlan Abdul Samat  , Norfifah Bachok  , Norihan Md Arifin
Published: March 2023

The 2D steady flow of CNTs nanofluids and heat transfer over the moving plate through a uniform free stream under the effect of magnetohydrodynamics (MHD) is studied. The movement of plate is presumed in the opposite or same direction. A mathematical modelling that is governed by a system of partial differential equations (PDEs) subjected to boundary conditions is transformed into a system of nonlinear ordinary equations (ODEs). An attempt at finding the expected outcomes is successfully executed by solving ODEs system using MATLAB bvp4c solver. The effect of various parameters such as magnetic field, CNTs volume friction and moving parameter on velocity and temperature profile, skin friction, Nusselt number and heat transfer rate are investigated numerically. The results are presented using tabular and graphical illustration. From the results, the increment of magnetic field into the flow will increase in both the skin friction and the heat transfer coefficient. Besides that, non-unique solutions are obtained when the plate moves in the range of and . For comparing the performance of base fluid, kerosene works better than water as a base liquid. We are also showing that SWCNTs is more effective both in the skin friction and the heat transfer coefficient compare to MWCNTs.
Slip Velocity Effect on Unsteady Free Convection Flow of Casson Fluid in a Vertical Cylinder
Authors: Wan Faezah Wan Azmi  , Ahmad Qushairi Mohamad  , Yeou Jiann Lim  , Sharidan Shafie
Published: March 2023

Many researchers study the Casson fluid flow in the cylinder since it imitates human blood flow in the small arteries. However, only a few researchers considered slip velocity at the boundary. The slip velocity is crucial in blood flow study due to naturally occurs during stretchable movement of the arteries. Hence, the study aims to obtain analytical solutions and understand the fluid flow behaviour with the slip velocity effect for the unsteady free convection flow of Casson fluid in a cylinder. The analytical solutions are obtained by using the joint methods of the finite Hankel transform and the Laplace transform. All initial and boundary conditions are satisfied by the analytical solutions that were obtained. The behaviour of velocity and temperature profiles are plotted and discussed graphically. It is evident from the results that increasing the slip velocity, Grashof number and time will enhance blood velocity while increasing the Casson parameter causes a decrement of blood velocity. Besides, the Prandtl number increases resulting in blood velocity and the blood temperature falling. Lastly, the obtained analytical solution is validated by comparing it with the previous study and found to be in good mutual agreement. The obtained analytical solution is significant to check the accuracy of the numerical solutions
Stability Analysis of Unsteady Mixed Convection Flow Near the Stagnation Point with Buoyancy Effect
Authors: Nurul Amira Zainal  , Kohilavani Naganthran  , Roslinda Nazar
Published: March 2023

This numerical study investigates the behaviour of the unsteady mixed convection flow and heat transfer near the stagnation region past a vertical plate in Al2O3-Cu/H2O hybrid nanofluids. By choosing an appropriate similarity transformation, an ordinary differential equations system is obtained, hence scrutinized via the bvp4c package embedded in the MATLAB program. The results show that as the nanoparticle volume fraction and unsteadiness parameter increase, the fluid's skin friction coefficient also increases. Also, an increase in the nanoparticle volume fraction and unsteadiness parameter has broadened the range of solutions hence, delayed the progress of boundary layer separation. In addition, the presence of the unsteadiness parameter provides a significant result in the thermal system. The first solution is declared stable by the stability analysis.
The impact of sewage treatment plant loading to river basin during Movement Control Order
Authors: Suriya Narhayhanen Rama Naidu  , Shreeshivadasan Chelliapan  , Mohd Taufik Salleh
Published: March 2023

Environment quality is essential aspects of life on earth, any changes in the quality have a significant impact on human beings. The implementation unprecedented Movement Control Order (MCO), which halted social, economic, and other activities except essential services contributed to opportunities for the earth to rejuvenate itself and build a better blue sky, peaceful wildlife, controlled noise pollution, and improved environmental features. Although the unprecedented Movement Control Order (MCO) due to COVID-19 pandemic posed some adverse effects on the environment, but there are also some benefits on the environment. One of the significant positive effects by the MCO is that the environment had rejuvenated during this period, especially significant water quality improvement. Many reports worldwide, including Malaysia, had reported that the environment including water quality had shown signification improvement. With controlled activities, MCO recognized contributed to river water quality rejuvenation amidst one of the main essential service sewage treatment plant operating at its fullest capacity. Amidst of various river pollution sources, Sewage Treatment Plant (STP) effluent discharge loading was identified as one of the main water resource polluters, and the MCO phenomenon turn raises the question of whether the STP effluent discharge loading onto river resources is the main culprit to the river pollution. This is a new challenge for water resources management to examine the impact of sewage treatment effluent discharge loading on water resource pollution loading in Malaysia. This study investigates the influence of sewerage treatment plant effluent loading from the Kuala Lumpur sewerage catchment to the Klang River basin within the Kuala Lumpur City Centre. The river’s natural self-carrying loading was investigated to evaluate the influence of sewerage effluent loading on the selected river basin. The STPs within the study area were identified and segregated based on its tributary river basin. The individual STP’s Biological Oxygen Demand (BOD) and Suspended Solid (SS) average effluent discharge loading of the year 2020 analyzed against the study River’s BOD and SS average self-loading of the year 2020. The STP and River loading were analyzed to investigate the fraction of STP effluent discharge loading against River loading in the study river basin during MCO.
Safeguard and mitigation of hazard and operability during simultaneous production and drilling at oil and gas platform
Authors: Nur Liyana Shafie  , Roslina Mohammad
Published: March 2023

Safety in the SIPROD platform design primarily relies on applying various codes of practice or design based on the broad experience and knowledge of professional experts and specialists in the industry. One technique used to study the potential hazards and consequences is the HAZOP study which is defined as the application of formal systematic critical examination to the process and engineering intentions of new or modified SIPROD facilities to assess the hazard potential of individual items of equipment and the consequential effect on the SIPROD facility as a whole. The application is backed up by local SIPROD platform managers, engineers, and operators with direct experience in the relevant plant operation. The HAZOP session describes the SIPROD process and systematically questions each design part by breaking it into pieces or nodes. Each node is assessed using guide words and deviations to discover how these deviations from the original design intent can occur and the resultant hazards and maintenance problems. There may be a deviation in identifying controls that need further investigation. This paper discusses the adequacy of the safeguards concerning safety and operations at the SIPROD platform, evaluates additional safeguards required for the system under study to address and minimize the consequence of deviation, and recommends ways to mitigate the consequences of deviations and return to normal and safe operations.
Stationary Flows Revisited
Authors:   University of Leeds, UK, Fordy Allan P. , Huang Qing ,   Northwest University, P.R. China
Published: March 2023

In this paper we revisit the subject of stationary flows of Lax hierarchies of a coupled KdV class. We explain the main ideas in the standard KdV case and then consider the dispersive water waves (DWW) case, with respectively 2 and 3 Hamiltonian representations. Each Hamiltonian representation gives us a different form of stationary flow. Comparing these, we construct Poisson maps, which, being non-canonical, give rise to bi-Hamiltonian representations of the stationary flows. An alternative approach is to use the Miura maps, which we do in the case of the DWW hierarchy, which has two ''modifications''. This structure gives us 3 sequences of Poisson related stationary flows. We use the Poisson maps to build a tri-Hamiltonian representation of each of the three stationary hierarchies. One of the Hamiltonian representations allows a multi-component squared eigenfunction expansion, which gives N degrees of freedom Hamiltonians, with first integrals. A Lax representation for each of the stationary flows is derived from the coupled KdV matrices. In the case of 3 degrees of freedom, we give a generalisation of our Lax matrices and Hamiltonian functions, which allows a connection with the rational Calogero-Moser (CM) system. This gives a coupling of the CM system with other potentials, along with a Lax representation. We present the particular case of coupling one of the integrable Hénon-Heiles systems to CM.
The First JWST Spectrum of a GRB Afterglow: No Bright Supernova in Observations of the Brightest GRB of all Time, GRB 221009A
Authors: Levan A. J. , Lamb G. P. , Schneider B. , Hjorth J. , Zafar T. , de Ugarte Postigo A. , Sargent B. , Mullally S. E. , Izzo L. , D’Avanzo P. , Burns E. , Fernández J. F. Agüí , Barclay T. , Bernardini M. G. , Bhirombhakdi K. , Bremer M. , Brivio R. , Campana S. , Chrimes A. A. , D’Elia V. , Valle M. Della , De Pasquale M. , Ferro M. , Fong W. , Fruchter A. S. , Fynbo J. P. U. , Gaspari N. , Gompertz B. P. , Hartmann D. H. , Hedges C. L. , Heintz K. E. , Hotokezaka K. , Jakobsson P. , Kann D. A. , Kennea J. A. , Laskar T. , Le Floc’h E. , Malesani D. B. , Melandri A. , Metzger B. D. , Oates S. R. , Pian E. , Piranomonte S. , Pugliese G. , Racusin J. L. , Rastinejad J. C. , Ravasio M. E. , Rossi A. , Saccardi A. , Salvaterra R. , Sbarufatti B. , Starling R. L. C. , Tanvir N. R. , Thöne C. C. , van der Horst A. J. , Vergani S. D. , Watson D. , Wiersema K. , Wijers R. A. M. J. , Xu Dong
Published: March 2023

We present James Webb Space Telescope (JWST) and Hubble Space Telescope (HST) observations of the afterglow of GRB 221009A, the brightest gamma-ray burst (GRB) ever observed. This includes the first mid-IR spectra of any GRB, obtained with JWST/Near Infrared Spectrograph (0.6–5.5 micron) and Mid-Infrared Instrument (5–12 micron), 12 days after the burst. Assuming that the intrinsic spectral slope is a single power law, with F

ν
∝ ν
−β
, we obtain β ≈ 0.35, modified by substantial dust extinction with A

V
= 4.9. This suggests extinction above the notional Galactic value, possibly due to patchy extinction within the Milky Way or dust in the GRB host galaxy. It further implies that the X-ray and optical/IR regimes are not on the same segment of the synchrotron spectrum of the afterglow. If the cooling break lies between the X-ray and optical/IR, then the temporal decay rates would only match a post-jet-break model, with electron index p < 2, and with the jet expanding into a uniform ISM medium. The shape of the JWST spectrum is near-identical in the optical/near-IR to X-SHOOTER spectroscopy obtained at 0.5 days and to later time observations with HST. The lack of spectral evolution suggests that any accompanying supernova (SN) is either substantially fainter or bluer than SN 1998bw, the proto-type GRB-SN. Our HST observations also reveal a disk-like host galaxy, viewed close to edge-on, that further complicates the isolation of any SN component. The host galaxy appears rather typical among long-GRB hosts and suggests that the extreme properties of GRB 221009A are not directly tied to its galaxy-scale environment.
Extremely Relativistic Tidal Disruption Events
Authors: Ryu Taeho , Krolik Julian , Piran Tsvi
Published: March 2023

Extreme tidal disruption events (eTDEs), which occur when a star passes very close to a supermassive black hole, may provide a way to observe a long-sought general relativistic effect: orbits that wind several times around a black hole and then leave. Through general relativistic hydrodynamics simulations, we show that such eTDEs are easily distinguished from most tidal disruptions, in which stars come close, but not so close, to the black hole. Following the stellar orbit, the debris is initially distributed in a crescent, it then turns into a set of tight spirals circling the black hole, which merge into a shell expanding radially outwards. Some mass later falls back toward the black hole, while the remainder is ejected. Internal shocks within the infalling debris power the observed emission. The resulting lightcurve rises rapidly to roughly the Eddington luminosity, maintains this level for between a few weeks and a year (depending on both the stellar mass and the black hole mass), and then drops. Most of its power is in thermal X-rays at a temperature ∼(1–2) × 106 K (∼100–200 eV). The debris evolution and observational features of eTDEs are qualitatively different from ordinary TDEs, making eTDEs a new type of TDE. Although eTDEs are relatively rare for lower-mass black holes, most tidal disruptions around higher-mass black holes are extreme. Their detection offers a view of an exotic relativistic phenomenon previously inaccessible.
Older Adult Engagement With Symptom Reporting in a COVID-19 Citizen Science Application
Authors: Hobensack Mollie , Dreisbach Caitlin , Topaz Maxim , Elhadad Noemie , Mamykina Olena , Bakken Suzanne B.
Published: March 2023

The current study examined the frequency and predictors of older adults' engagement with symptom reporting in COVIDWATCHER, a mobile health (mHealth) citizen science application.
Citizen science
is a type of participatory research that leverages information provided by community members. There were 1,028 COVIDWATCHER participants who engaged with symptom reporting between April 2020 and January 2021. Approximately 13.5% (
n
= 139) were adults aged ≥65 years. We used a Wilcoxon test to compare the mean frequency of engagement with symptom reporting by older adults (i.e., aged ≥65 years) to younger adults (i.e., aged ≤64 years) and multivariable linear regression to explore the predictors of engagement with symptom reporting. There was a significant difference in engagement with symptom reporting between adults aged ≥65 years compared to those aged ≤64 years (
p
< 0.001). In our final model, age (β = 26.0; 95% confidence interval [14.8, 34.2]) was a significant predictor for engagement with symptom reporting. These results help further our understanding of older adult engagement with mHealth-enabled citizen science for symptom reporting. [
Journal of Gerontological Nursing, 49
(4), 6–11.]
Nursing Home Residents' Experiences During the COVID-19 Pandemic
Authors: Raciti Audrieanna , Chang Yu-Ping
Published: March 2023

Long-term care facilities in the United States have accounted for 40% of deaths related to coronavirus disease 2019 (COVID-19). Restriction of in-person visitation has heightened mental health challenges among nursing home residents, and limited evidence exists in the literature concerning nursing home residents' experiences since the COVID-19 outbreak first began. The current study used a qualitative design to obtain data from residents within two nursing homes in New York. Interview data were transcribed verbatim and analyzed using reflexive thematic analysis. Four major themes emerged:
Emotional Reactions to Lockdown
,
Mixed Feelings and Attitudes Toward Nursing Home Staff and Family, Need for Support and Connection,
and
Desire to Be Informed and Involved
. Results show that nursing home residents are emotionally burdened and suggest a critical need to provide ongoing support to prevent mental health concerns. Future research should develop interventions to help manage adverse emotional outcomes. [
Journal of Gerontological Nursing, 49
(4), 27–32.]
Adapting Geriatric Day Hospital Care From an In-House to Outreach Process
Authors: Brooks Elaine , Freter Susan
Published: March 2023

Outpatient programs have been challenged to find ways to deliver services while adhering to coronavirus disease protocols. Our Geriatric Day Hospital (GDH) Falls Clinic changed from a 6-week in-house program to an outreach program incorporating telephone assessments and home visits. We evaluated whether the outreach program was effective in improving patient outcomes in 23 serially enrolled clients. Statistically significant gains were achieved with falls, Berg Balance Scale scores, functional reach measurements, and pain management scores. Access to social support from family or friends led to higher implementation of recommendations. There was an inability to predict which clients would improve from an outreach program, but it was evident that the program benefited some clients and provided a viable alternative to an in-person program. [
Journal of Gerontological Nursing, 49
(4), 33–38.]
Urinary Incontinence in Older Adults: Impact on Caregiver Burden
Authors: Akpinar Nilay Bektas , Unal Nursemin , Akpinar Cagri
Published: March 2023

The objective of the current descriptive, cross-sectional, and relationship-seeking study was to evaluate the severity of urinary incontinence (UI) in older adults and its impact on care burden of their family caregivers. This study was performed prospectively with 80 older adults (aged ≥65 years) with UI and their family caregivers who attended a urology clinic between June and December 2021. UI was assessed using the International Consultation on Incontinence Questionnaire Short Form (ICIQ-UI-SF), and caregiver burden using the Zarit Burden Interview (ZBI). Increase in care time was associated with higher burden of care (
p
= 0.018). Post-hoc analyses suggested that caregivers' burden of care gradually increased up to the first 9 months. Daily care time >9 hours had a higher burden compared to care times <9 hours (
p
< 0.001). Mean ZBI score of caregivers was 41.47 (
SD
= 10.18) and mean ICIQ-UI-SF score of older adults was 15.02 (
SD
= 3.9). A significant correlation was observed between increased ICIQ-UI-SF scores of older adults and ZBI scores of caregivers (
r
= 0.354,
p
= 0.001). Caring for older adults with UI is associated with a significant burden of care and an increase in severity of UI is associated with increased burden of care. Female sex, lower educational level, presence of comorbidities, increased care time, and daily care hours were factors associated with increased burden of care among caregivers. [
Journal of Gerontological Nursing, 49
(4), 39–46.]
Dynamics of stability of the world economic system
Authors: Kilyachkov Anatoly A. , Chaldaeva Larisa A. , Kilyachkov Nikolai A.
Published: March 2023

The current global economic crisis has actualized the problem of studying non-equilibrium processes in the economy. To approach the problem, a discrete dynamic model (DDM) was developed that describes the dynamics of the rate of change in the global GDP for the period 1961-2021. This paper publishes the results of studies of two types of stability. The first is connected with the global economic system stability, which can be described by a DDM in different time periods. The second studies sensitivity of the DDM to the annual GDP growth values that were used to construct it (sensitivity analysis). The conducted research depicted the various periods of development of the global economic system, characterized by varying degrees of stability. The DDM determined that during periods of crises, the stability of the global economic system decreases. Our studies have shown that at present the world economic system is on the verge of a complete loss of stability. To assess the sensitivity of the DDM to the input data, a sensitivity indicator was introduced. It was found that the DDM is insensitive to input data during periods of crisis, i.e., the results obtained are reliable. In turn, periods of stable development of the global economic system are characterized by less reliability in the DDM results.
Spanish business commitment to the 2030 Agenda in uncertain times
Authors: Somohano-Rodríguez Francisco Manuel , David Fátima , Azevedo Tania Cristina
Published: March 2023

Sustainability has become strategic since companies are aware that they must make a positive contribution to society and the environment in which they operate. At the same time, alliances have been formed and pacts have been made among nations to attempt to solve the social, economic and environmental problems that today's society faces. This is the case of the UN's 2030 Agenda and the Sustainable Development Goals (SDGs). This action plan entails the development of different initiatives to help face the challenges of this century, which have increased notably with the COVID-19 pandemic. The objective of this study is to carry out an analysis of Spanish companies' commitment to the 2030 Agenda and the SDGs and verify what types of activities they propose to ratify their commitment in an uncertain period for firms. For a sample of 100 observations of Spanish firms in 2020 and 2021, we evidence that SDGs 4 (Quality education), 8 (Decent work and economic growth), 9 (Industry, innovation, and infrastructure), 13 (Climate action) and 17 (Partnerships for the goals) have been adopted by many companies, which have presented initiatives, projects and programmes to achieve their goals. Commitment to the SDGs had a positive evolution in 2021, i.e., firms created economic value, protected the environment and contributed to greater social well-being. Our results show companies' preferences in terms of stakeholders as their SDGs' actions focus on women, older people, young people, workers and trade unions, local governments and researchers in issues related to climate change. The paper contributes with a global assessment of companies' initiatives and helps to determine the impact of uncertain environments on business commitments to the 2030 Agenda.
On the strong convergence of the solution of a generalized non-Newtonian fluid with Coulomb law in a thin film
Authors: Lahlah Hana Taklit , Benseridi Hamid , Cherif Bahri , Dilmi Mourad , Boulaaras Salah , Alharbi Rabab
Published: March 2023

The goal of this paper is to examine the strong convergence of the velocity of a non-Newtonian incompressible fluid whose viscosity follows the power law with Coulomb friction. We assume that the fluid coefficients of the thin layer vary with respect to the thin layer parameter $ \varepsilon $. We give in a first step the description of the problem and basic equations. Then, we present the functional framework. The following paragraph is reserved for the main convergence results. Finally, we give the detail of the proofs of these results.
Restored texture segmentation using Markov random fields
Authors: Kinge Sanjaykumar , Rani B. Sheela , Sutaone Mukul
Published: March 2023

Texture segmentation plays a crucial role in the domain of image analysis and its recognition. Noise is inextricably linked to images, just like it is with every signal received by sensing, which has an impact on how well the segmentation process performs in general. Recent literature reveals that the research community has started recognizing the domain of noisy texture segmentation for its work towards solutions for the automated quality inspection of objects, decision support for biomedical images, facial expressions identification, retrieving image data from a huge dataset and many others. Motivated by the latest work on noisy textures, during our work being presented here, Brodatz and Prague texture images are contaminated with Gaussian and salt-n-pepper noise. A three-phase approach is developed for the segmentation of textures contaminated by noise. In the first phase, these contaminated images are restored using techniques with excellent performance as per the recent literature. In the remaining two phases, segmentation of the restored textures is carried out by a novel technique developed using Markov Random Fields (MRF) and objective customization of the Median Filter based on segmentation performance metrics. When the proposed approach is evaluated on Brodatz textures, an improvement of up to 16% segmentation accuracy for salt-n-pepper noise with 70% noise density and 15.1% accuracy for Gaussian noise (with a variance of 50) has been made in comparison with the benchmark approaches. On Prague textures, accuracy is improved by 4.08% for Gaussian noise (with variance 10) and by 2.47% for salt-n-pepper noise with 20% noise density. The approach in the present study can be applied to a diversified class of image analysis applications spanning a wide spectrum such as satellite images, medical images, industrial inspection, geo-informatics, etc.
Modified reptile search algorithm with multi-hunting coordination strategy for global optimization problems
Authors: Wu Di , Wen Changsheng , Rao Honghua , Jia Heming , Liu Qingxin , Abualigah Laith
Published: March 2023

The reptile search algorithm (RSA) is a bionic algorithm proposed by Abualigah. et al. in 2020. RSA simulates the whole process of crocodiles encircling and catching prey. Specifically, the encircling stage includes high walking and belly walking, and the hunting stage includes hunting coordination and cooperation. However, in the middle and later stages of the iteration, most search agents will move towards the optimal solution. However, if the optimal solution falls into local optimum, the population will fall into stagnation. Therefore, RSA cannot converge when solving complex problems. To enable RSA to solve more problems, this paper proposes a multi-hunting coordination strategy by combining Lagrange interpolation and teaching-learning-based optimization (TLBO) algorithm's student stage. Multi-hunting cooperation strategy will make multiple search agents coordinate with each other. Compared with the hunting cooperation strategy in the original RSA, the multi-hunting cooperation strategy has been greatly improved RSA's global capability. Moreover, considering RSA's weak ability to jump out of the local optimum in the middle and later stages, this paper adds the Lens pposition-based learning (LOBL) and restart strategy. Based on the above strategy, a modified reptile search algorithm with a multi-hunting coordination strategy (MRSA) is proposed. To verify the above strategies' effectiveness for RSA, 23 benchmark and CEC2020 functions were used to test MRSA's performance. In addition, MRSA's solutions to six engineering problems reflected MRSA's engineering applicability. It can be seen from the experiment that MRSA has better performance in solving test functions and engineering problems.
Les chasseurs de poissons d’El-Hosh (Haute-Égypte) : l’art rupestre le plus ancien de la vallée du Nil
Authors: Huyge Dirk , Dapper Morgan De , Marchi Elena , Watchman Alan
Published: March 2023

En novembre 1998, une équipe internationale, financée par la National Geographic Society et le Fonds de la Recherche Scientifique–Flandre (Belgique), a procédé à une prospection de l’art rupestre de la région d’El-Hosh, en Haute-Égypte, ce qui permit de localiser une multitude de sites comptant des milliers de pétroglyphes. L’attention a principalement porté sur l’art rupestre régional représentant des tracés curvilinéaires fongiformes et des dessins géométriques à patine intense, ainsi qu’une quantité de figures apparemment associées: anthropomorphes, empreintes de pieds, zoomorphes. Des échantillons furent prélevés sur plusieurs de ces images, dans le but d’obtenir une datation AMS 14C. Nombre de panneaux d’art rupestre complexes ont été relevés intégralement. De plus, la distribution des sites a été étudiée, en relation avec les particularités géomorphologiques de la région.
Une « vraie » place dans la recherche-intervention
Authors: Marcel Jean-François
Published: March 2023

Ce texte s’empare de la notion de place pour affiner sa théorisation dans le contexte particulier de la démarche de recherche-intervention (RI). Pour ce faire, il expose les fondements et les modalités de mise en œuvre de la RI puis propose une théorisation de la notion de place, par un travail de structuration thématisée de son champ lexical, qui permet de mettre au jour trois dimensions constitutives de cette notion. Suite à la présentation des deux protagonistes, vient le temps du dialogue entre RI et place, et son analyse débouche sur la synthèse d’une « place pour la RI ». Cette théorisation est prolongée à l’aide des concepts de « décoïncidence » et de « vraie vie » (empruntés à François Jullien), ce qui permet, pour finir, de proposer une définition de la « vraie place » dans la RI.
Inclure des élèves nouvellement arrivés en France : transformations des acteurs au sein d’une recherche collaborative interprétative
Authors: Jaskula Malgorzata , Addisu Véronique Miguel
Published: March 2023

Nous chercherons à comprendre comment les acteurs réflexifs (praticiens et chercheurs) se transforment au sein d’une recherche collaborative interprétative en éducation, et sur quels domaines portent ces transformations. Cette dynamique parait particulièrement pertinente pour aborder des questions vives en éducation. Par le biais d’interprétations co-construites sur un temps long, la réflexivité partagée favorise, dans ce paradigme, l’« agir communicationnel » transformateur. Nous étudierons cette dynamique à partir de l’exemple de trois praticiens réflexifs, en nous appuyant sur une recherche portant sur l’inclusion des élèves allophones nouvellement arrivés en France. L’étude révèle que les transformations se jouent au cœur des écarts et des complémentarités entre savoirs savants et savoirs pratiques. Elles ont un effet sur le développement professionnel de tous les acteurs (praticiens et chercheurs), et plus largement sur leur implication dans la cité.
L’intervention développementale comme outil d’expansion de l’activité d’animation d’ateliers de slam de poésie
Authors: Géas Élodie , Grosstephan Vincent , Brau-Antony Stéphane
Published: March 2023

Les interventions développementales représentent une forme alternative de recherche résolument activiste et interventionniste, soutenant les efforts des acteurs pour reconceptualiser et transformer leur activité, interrogeant ainsi leurs places respectives. L’étude de cas présentée ici analyse le développement de l’activité d’ateliers de slam de poésie, co-animés par un enseignant et un artiste-slameur. Les acteurs de cette activité d’animation, enseignants, slameurs mais aussi élèves, sont directement impliqués dans le dispositif de recherche, inspiré des laboratoires du changement. La méthodologie employée expérimente les possibilités de développement de l’activité pouvant être suscitées par le chercheur, notamment grâce à l’identification par les praticiens d’un objet partagé, ayant pour conséquence une évolution de la division du travail. Ainsi, les postures respectives des chercheurs et des professionnels dans le dispositif de recherche évoluent, ce qui favorise la réappropriation par les praticiens de leur activité et leur émancipation individuelle et collective.
Places et rôles des passeurs dans les Lieux d’éducation associés à l’Institut français de l’éducation
Authors: Promonet Aurore , Prieur Michèle
Published: March 2023

L’étude s’inscrit dans le contexte d’un réseau de recherche collaborative : le réseau des Lieux d’éducation associés de l’Institut français de l’éducation de l’École normale supérieure de Lyon (LéA-IFÉ). Un LéA est un espace lié à des enjeux d’éducation et/ou de formation qui réunit, pendant trois années, des acteurs du monde de la recherche et du monde de l’éducation autour d’un projet de recherche coconstruit. Nous questionnons les places et les rôles des différents acteurs impliqués dans un LéA. À partir des fonctions qui leur sont assignées par les institutions auxquelles ils appartiennent, nous étudions les rôles endossés par chacun et potentiellement distribués au sein du collectif de recherche. Dans la première partie de l’article, nous traitons la question à partir d’une étude de cas, issue d’un LéA : le LéA TEC (traces écrites, écoles-collèges en Terre de Lorraine). Dans la seconde partie, nous présentons l’analyse d’un rôle spécifique en contexte de recherche collaborative : le rôle de passeur ou courtier de connaissances. La question est traitée à l’échelle du réseau des LéA-IFÉ.
Study of Green Corrosion Inhibitor of Aegle marmelos Leaves Extract in Acidic Medium
Authors: Sravanth Vundavalli Venkata , Avapati Surya Lokesh , Poiba Venkata Rao , Vangalapati Meena
Published: March 2023

Corrosion is an inevitable process of deterioration of metal but it can be slowed down using inhibitors, enhancing the durability of the metal. In the present study, the aqueous extract of Aegle Marmelos Leaves from surrounding area were tested as green corrosion inhibitor for aluminium metal in 1M H2SO4 acidic medium. The leaves extract characterization was analyzed using Fourier Transform Infrared Spectroscopy (FT-IR), the surfaces of Aluminium Sheets were examined using scanning electron microscopy (SEM) and atomic forced microscopy (AFM). Different techniques like weight-loss analysis, UV-VIS studies, pH are done to study for inhibition efficiency. At different temperatures the inhibition efficiency is tested and results showed a good restrain approximately to 81% at 90% (v/v) of inhibitor solution in H2SO4 acidic medium.
The Synthesis Regimes Effect on Powders and Ceramics of MgAl2O4 Doped with Cr3+
Authors: Afanaseva Elena , Vaishlia Elena , Klinkov Victor A. , Kolesnikov Ilya
Published: March 2023

This work presents the investigation of nanopowders from magnesium aluminum spinel doped with Cr3+. Different synthesis conditions were used to determine the influence on lattice parameter. The following synthesis parameters varied: time of calcination, cold pressing and alternative precursor of Cr3+. The nanopowders properties were measured by XRD, optical transmission and EDX spectroscopy. The determined average size of synthesized nanoparticles is around 70 nm. Ceramic samples are given by hot pressing and studied by transmission spectroscopy and luminescent spectroscopy. The excitation and emission spectra demonstrates 2E - 4A2 (687 nm), 4A2 - 4T1 (400 nm) and 4A2 - 4T2 (532 nm) transitions.
Mild Steel Corrosion Inhibition by Andrographis paniculata Leaves Extract in 10 % Hydrochloric Acid Solution
Authors: Alhaji N.M.I. , Sujatha Saravanan
Published: March 2023

Using the weight loss method and scanning electron microscopic examinations, the extract of Andrographis paniculata leaves in various concentrations was examined as a corrosion inhibitor of mild steel in 10% HCl. The weight loss findings demonstrated the effectiveness of plant extract as a corrosion inhibitor at various doses. Studies using scanning electron microscopy confirmed the enhanced surface condition caused by adsorption for corrosion protection.
Impact of controlling railway fares on the financial shortfall of Sri Lanka railways (SLR)
Authors: Danthanarayana C. T. , Dunusinghe D. D. P. M.
Published: March 2023

Although envisaged as the means of delivering an attractive and efficient mode of public transport, Sri Lanka Railways (SLR) has incurred a financial shortfall since the mid-1900s. To overcome this financial shortfall SLR, a government department needs to adopt strategies that enhance its total revenue or reduce recurrent expenditure. Passenger revenue and freight revenue are major components of the total revenue of SLR. These are determined by fares and the volume of passenger and freight transport. This study examines the impact of government controls on railway fares on the financial shortfall of SLR. To do this, it analyses the effects of the railway passenger and freight revenue components of the financial statements from 1977 to 2018. An in-depth descriptive and graphical analysis is performed using secondary data to find the impact of these variables. The study ascertains that the long-term financial shortfall of SLR is attributable to two factors: SLR charges relatively low passenger fares charged by SLR compared with public bus transport, and it does not revise its fares in line with changes in the bus. This study recommends that decision-makers and planners formulate a railway fare policy that is revised in line with bus fares and adopt measures to enhance the quality and level of service delivered by SLR.
Strategic perspectives of integrating land use and transport development in Sri Lanka: a review
Authors: Mendis Willie
Published: March 2023

This article reviews the developments in the transport sector policy in Sri Lanka from the time of getting independence from Britain, highlighting the merits, gaps, prospects and opportunities noticeable in the present-day context. While the transport policy formulation happened in a compartmentalized manner focusing on sub-sectors of road, rail, water, and air, it did not seem to have an overall strategic perspective, especially to integrate the planning of human settlements and the sustainable use of limited land area and other resources of the island. Despite the availability of all-encompassing statutes and well-established institutions, large-scale projects in the road sector, the overall development has been ad-hoc and mostly demand-driven rather than as an integrated demand-managed approach. Such disintegration and dissociation with parallel spatial plans such as the Mahaweli Development Project, Greater Colombo Economic Development Commission projects, etc., has hindered both the development of the transport sector and the overall physical development of human settlements from contributing to rapid growth and sustainable socio-economic development of Sri Lanka. The article suggests a few opportunities and prospects currently available to formulate a cohesive and integrated transportation policy that would enable a strategic contribution to overall national development. The paper discusses the Colombo-Trincomalee Development Corridor, the spatial structure proposed in the National Physical Plan 2050, and the Asian Highway Network proposed by the Economic and Social Commission for Asia and the Pacific (ESCAP).