bluuebunny/crossref_metadata_2025 huggingface dataset:
Prevalence of low vision and barriers to uptake of low vision services in an adult population of Southwest Nigeria
Authors: Okwudishu Izuka A. , Ugalahi Mary O. , Olusanya Bolutife A. , Bekibele Charles O.
Published: March 2023

Aim:

To determine the prevalence of functional low vision and barriers to uptake of low vision services in Oluyole Local Government Area, Oyo State with a view to obtaining data for proper planning of low vision services.

Methods:

A population-based cross-sectional study. Multistage random sampling technique with probability proportion to size was used to select respondents from the L.G.A. The study involved the administration of questionnaires to elicit basic demographic data, ocular history, and barriers to uptake of low vision services as well as ocular examination to determine the causes of low vision.

Results:

A total of 419 respondents participated in the study, 303 were females with male-to-female ratio of 1:2.6 and a mean age of 49.38 (± 13.17) years. Fourteen (3.3%) respondents were found to have functional low vision. The main causes of functional low vision were glaucoma (32%) and age-related macular degeneration (ARMD) (16%). Functional low vision was strongly associated with older age (p = 0.019) and the main barriers to utilization of low vision services were lack of awareness of the services and financial constraints.

Conclusion:

A significant burden of functional low vision was found in Oluyole Local Government Area of Oyo State. There is need for regular community-based surveys in other parts of the country to aid proper planning of low vision services in the host communities and the country as a whole. Also, more awareness needs to be created about common ocular diseases and facilities for appropriate treatment of these diseases.
Economic burden of glaucoma in Nigeria
Authors: Bello Shahir Umar , Eze Ugochukwu A , Umar Murtala M , Abdull Mohammed , Babalola OE
Published: March 2023

Aim:

To estimate the direct health care cost of glaucoma in patients attending glaucoma clinic at National Eye Centre, Kaduna.

Methods:

The study was a hospital-based observational, cross-sectional study of 150 consecutive glaucoma patients on follow-up visits to the glaucoma clinic from November, 2017 to January, 2018. The study was conducted using a structured interviewer-administered questionnaire. The study investigated the patients’ monthly income, the method of funding glaucoma treatment, and cost of treatment of glaucoma. Data obtained were entered and analyzed using SPSS version 24 with level of significance set at 95% confidence interval.

Results:

There were a total of 150 patients who participated in the study, with a male-to-female ratio of M:F ratio is 1.2:1. Majority of respondents (65%) in the study were below the age of 60 years with a mean age of 55.36 (SD+/−13.7). The average monthly income of respondents was NGN 4,600 for unskilled workers, NGN 28,812 for skilled workers, and NGN 97,111 for professionals. The mean monthly direct health cost was NGN 9,954 and majority (91.7%) of the patients fund their treatment out of pocket. Only 14 (9.3%) patients were subscribers of the National Health Insurance Scheme. None among the unskilled and unemployed respondents had monthly direct costs below their average monthly income. The insured patients spent an average of 1.5% and 4.5%, respectively of their total monthly income on antiglaucoma medication and glaucoma surgery unlike the uninsured group who have spent 10.1% and 10.5%, respectively on medications and surgery.

Conclusion:

Data from this study have shown that up to one-tenth of the monthly income can be spent on glaucoma care alone. Health policy makers should consider making glaucoma a priority disease to ensure that patients on treatment have affordable, equitable, and of good quality in order to prevent consequent glaucoma-related blindness.
Retrospective analysis of low vision assistive products – A 6-year review
Authors: Gurnani Bharat , Kaur Kirandeep , Sivakumar Priya , Bhandari Sahil
Published: March 2023

PURPOSE:

The purpose of the study was to analyze the demographics, visual acuity (VA), etiologies, recommended low vision assistive products (LVAP), and the acceptance rates of LVAP in various age groups.

METHODS:

This was a long-term retrospective review of all the patients presenting to the low vision clinic of our tertiary eye care hospital from January 2011 to December 2016. Data obtained included age, gender, VA, visual fields, ocular pathology causing the low vision, and types of LVAP advised. The primary outcome was to analyze the type of LVAP prescribed in different age groups, and the secondary outcome was the acceptance rate of LVAP.

RESULTS:

We analyzed the results of 8309 patients, out of which 2844 (34%. 2) were <15 years of age, 2425 (29.5%) were between 16-40 years, and 3013 (36.3%) were above 40 years. A total of 5522 (66.4%) had best-corrected visual acuity (BCVA) ranging from 6/18-3/60, and 2796 (33.6%) had BCVA from 3/60-No PL. Approximately 38% improved with LVAPs. The most common etiology was retinitis pigmentosa in 1545 (18.6%) patients, followed by congenital nystagmus in 1482 (17.8%), and the least was albinism 383 (4.6%). Maximum prescribed and accepted LVAP were hand and stand magnifiers among 1017 (44.3%) and 512 (52.6%) patients, respectively.

CONCLUSION:

Products that are easy to use, require lesser adaptability, are cheap, and require lower maintenance have maximum acceptance rates. We suggest that great emphasis should be laid on training, education, and guidance for low vision rehabilitation centers.
Comparison of central corneal thickness in corneal edema by ultrasound pachymetry, specular microscopy, and anterior segment optical coherence tomography
Authors: Artuç Tuncay , Batur Muhammed
Published: March 2023

PURPOSE:

The purpose of this study was to compare ultrasound pachymetry Ultrasound pachymetry (UP), specular microscopy (SM), and anterior segment optical coherence tomography (ASOCT) in the measurement of central corneal thickness (CCT) in cases of corneal edema before and after uncomplicated phacoemulsification.

METHODS:

Preoperative pachymetric measurements were performed in all patients before cataract surgery. Sixty -seven patients who developed corneal edema after routine faoemulsification surgery were included in the study. CCT measurements were made the day before surgery and on the 1st, 7th, and 14th days after surgery. Correlation and agreement between the devices were quantified with the intraclass correlation coefficient (ICC), limits of agreement, and Bland–Altman plots.

RESULTS:

The mean age of the patients was 70.99 ± 9.56 (36–92) years. While CCT could be measured in all eyes with ASOCT after surgery, the number of eyes measured with UP and SM were 24 (11.7%) and 27 (16.1%), 55 (82.1%) and 52 (77.6%), and 46 (88.8%) and 45 (86.9%) on postoperative days 1, 7, and 14, respectively. ICC values between UP and SM, UP and ASOCT, and SM and ASOCT, respectively, were: preoperative 0.91, 0.94, and 0.92; 1st postoperative day 0.93, 0.86, and 0.93; 7th postoperative day 0.94, 0.85, and 0.96; and 14th postoperative day 0.95, 0.92, and 0.96.

CONCLUSION:

In all eyes with corneal edema, CCT measurements can be taken with ASOCT; however, in some cases, CCT measurements with SM and UP cannot be taken. However, there is a good correlation between measurements taken with these devices.
Stereopsis following delayed strabismus surgery in early-onset strabismus
Authors: Chinmayee J. T. , Kshama K. , Eswaran Vidhya
Published: March 2023

PURPOSE:

Improved stereoacuity following delayed strabismus surgery is associated with long-term alignment of eyes and reduced severity of amblyopia. The objective of this study is to evaluate stereopsis following delayed strabismus surgery in early-onset strabismus.

METHODS:

It is a hospital-based prospective, nonrandomized, interventional case study. Thirty patients with early-onset strabismus (before 3 years of age), presenting after 6 years of age were included. History taking and full orthoptic workup was done. Stereopsis was tested with Titmus Fly Chart test. The patients were treated surgically to correct strabismus and were followed up for 3 months. Quantitative parameters were compared between preoperative and postoperative follow-up at 3 months using McNemar test, Chi-square test, and independent t-test.

RESULTS:

Of the 21 patients who had gross stereopsis preoperatively, nine of them (42.86%) attained fine stereopsis at 3 months postoperatively (P = 0.003, McNemar test). Ten (33.33%) of 30 patients had amblyopia and three out of 30 patients (10%) had preoperative “nil” stereopsis. Of the patients who showed improvement (16 of 30 patients – 53.33%), most of the improvement was observed in (a) exodeviations (56.25%, n = 9), (b) earlier age of presentation-before 10 years of age (47.36%, n = 9).

CONCLUSION:

The benefits of surgical correction of early-onset strabismus include improvement in stereopsis. Therefore, even in an early-onset squint with a delayed presentation rehabilitation of stereopsis should be the goal of treatment.
FRANJA DE SEGURIDAD Y OBLIGACIONES DE PODA Y CORTA DEL CONCESIONARIO ELÉCTRICO: OBSERVACIONES A PROPÓSITO DE LOS PLIEGOS TÉCNICOS NORMATIVOS RPTD
Authors: Wegmann Stockebrand Adolfo Andrés
Published: March 2023

El presente artículo aborda los problemas dogmáticos y prácticos que plantean los Pliegos Técnicos Normativos RPTD N° 7 y 15 con respecto a la franja de seguridad y su relación con la franja de servidumbre, por una parte, y a la extensión de las obligaciones de poda y corta del concesionario eléctrico, por la otra. Se propone que dichas obligaciones debieran circunscribirse a los límites de la franja de servidumbre, aun cuando éstos sean más reducidos que aquellos de la franja de seguridad.
Las medidas jurídicas ante la discriminación de remuneración entre mujeres y hombres: un análisis de Derecho comparado
Authors: Rojas Miño Irene
Published: March 2023

Este trabajo presenta un análisis de Derecho comparado que pretende identificar los instrumentos jurídicos que han sido establecidos y aplicados en otros sistemas a  fin de superar la discriminación remunerativa, a fin de, posteriormente, evaluar su incorporación en el sistema chileno. Al efecto, fueron seleccionados los de la Provincia de Quebec, Suecia y España, se identificaron los respectivos instrumentos y se analizó su funcionamiento tanto en el sistema jurídico como en el de relaciones laborales. Este estudio permitió identificar las medidas activas y de transparencia remunerativa que se establecen por parte de cada empresa, junto con la participación de los representantes de los trabajadores para su implementación. Sin embargo, este último elemento plantea carencias en el sistema chileno, dada la debilidad de su estructura sindical, por lo que la incorporación de tales medidas plantearía grandes desafíos
A mathematical analysis of the Kakinuma model for interfacial gravity waves. Part I: Structures and well-posedness
Authors: Duchêne Vincent , Iguchi Tatsuo
Published: March 2023

We consider a model, which we named the Kakinuma model, for interfacial gravity
waves. As is well known, the full model for interfacial gravity waves has a variational structure
whose Lagrangian is an extension of Luke’s Lagrangian for surface gravity waves, that is, water
waves. The Kakinuma model is a system of Euler–Lagrange equations for approximate Lagrangians,
which are obtained by approximating the velocity potentials in the Lagrangian for the full model.
In this paper we first analyze the linear dispersion relation for the Kakinuma model and show that
the dispersion curves highly fit that of the full model in the shallow water regime. We then analyze
the linearized equations around constant states and derive a stability condition, which is satisfied for
small initial data when the denser water is below the lighter water. We show that the initial value
problem is in fact well posed locally in time in Sobolev spaces under the stability condition, the
noncavitation assumption, and intrinsic compatibility conditions, in spite of the fact that the initial
value problem for the full model does not have any stability domain so that its initial value problem
is ill posed in Sobolev spaces. Moreover, it is shown that the Kakinuma model enjoys a Hamiltonian
structure and has conservative quantities: mass, total energy, and in the case of a flat bottom,
momentum.
Invariant Gibbs measures for the three-dimensional wave equation with a Hartree nonlinearity II: Dynamics
Authors: Bringmann Bjoern
Published: March 2023

In this two-paper series, we prove the invariance of the Gibbs measure for a threedimensional wave equation with a Hartree nonlinearity. The novelty lies in the singularity of the Gibbs measure with respect to the Gaussian free field.

In this paper, we focus on the dynamical aspects of our main result. The local theory is based on a paracontrolled approach, which combines ingredients from dispersive equations, harmonic analysis, and random matrix theory. The main contribution, however, lies in the global theory. We develop a new globalization argument, which addresses the singularity of the Gibbs measure and its consequences.
Assessing Analytic Geometry Understanding: Van Hiele, SOLO, and Beyond
Authors: Bosse Michael J. , Bayaga Anass , Lynch-Davis Kathleen , DeMarte Ashley
Published: March 2023

In the context of analytical geometry, this study considers the mathematical understanding and activity of seven students analyzed simultaneously through two knowledge frameworks: (1) the Van Hiele levels (Van Hiele, 1986, 1999) and register and domain knowledge (Hibert, 1988); and (2) three action frameworks: the SOLO taxonomy (Biggs, 1999; Biggs & Collis, 1982); syntactic and semantic elaborations (Kaput, 1987a, 1987b, 1989); and isomorphic, transcendent, and mixed connections (Adu-Gyamfi, Bossé, & Lynch-Davis, 2019). Along with producing a fuller analysis of student work and communication, the study found that for only the students with the lowest and highest scores regarding either their understanding or actions on the analytic geometry task might there be a predictive association between knowledge and action levels. For other students, a predictive association could not be determined. This may mean that the level of understanding a student possesses regarding a particular mathematical concept may not parallel the level of actions they use when working with an associated task.
Numerical Analysis of Battery Thermal Management System Using Passive Cooling Technique
Authors: Joshi Anand K. , Dandotiya Devendra , Ramesh C. S. , Panchal Satyam
Published: March 2023

Nowadays electric vehicle is replacing internal combustion engines in the transport sector. The growth of electric vehicles is increasing rapidly to reduce the impact of global warming and climate change. The battery limits the use of electric vehicles as an exact alternative to traditional IC engine vehicles. Specifically, the operating temperature, charge/discharge rates, and internal heat generation of the battery the performance of electric vehicles, like the driving range, charge storage capacity, the cycle life of the battery, and thermal runaway occurring at high temperatures. To overcome these problems, the battery thermal management system (BTMS) controls the temperature of the battery and maintains the optimal temperature to operate the battery efficiently and safely. In the heights of the above facts, the numerical analysis of 18650 Li-ion battery thermal management systems by passive cooling technology using Phase Change Material (PCM). The recent developments in battery thermal management systems, in particular, battery module analysis with and without PCM at different C rates, with and without fin are discussed at length.

Numerical Analysis using ANSYS FLUENT is carried out to determine the effect of the use of PCM on heat transfer in the battery module. Temperature distribution along the battery in the region of PCM with and without the use of fins of various geometries and their configuration are predicted. Among all the geometries studied, the use of “I” section fin had a profound beneficial effect on heat transfer leading to better performance of the battery.
La edad de oro: Nanomateriales Metálicos Teragnósticos Emergentes
Authors: Almada Mario , Ibarra Hurtado Jaime , Juarez Josue , Encinas-Basurto David
Published: March 2023

A pesar de los grandes avances de las ciencias médicas, el cáncer sigue siendo un importante problema de salud. Dado que la mayoría de los protocolos de tratamiento del cáncer incluyen agentes quimioterapéuticos de primera generación, los efectos secundarios y la resistencia a los medicamentos siguen siendo un problema preocupante. Por lo tanto, se necesita más que nunca una solución específica y selectiva para la quimioterapia estándar. Las nanopartículas de oro (GNP) tienen un tamaño y unas propiedades de superficie notables que las convierten en el vehículo ideal para la administración dirigida y selectiva de fármacos. Diferentes experimentos in vitro e in vivo demostraron que estas partículas pueden diseñarse fácilmente de tal manera que el fármaco químico pueda administrarse directamente en el sitio del tumor.  Además, las propiedades ópticas de estas partículas pueden utilizarse para potenciar la acción del fármaco. Sin embargo, se deben realizar más estudios para dilucidar todos los problemas de toxicidad y adquirir conocimientos adicionales sobre los efectos en la salud a largo plazo y la interacción con todos los mecanismos fisiológicos del cuerpo humano.
STRENGTHENING ATMOSPHERIC EMISSIONS IN THE COLISION OF COMET SHOEMAKER-LEVY 9WITH THE PLANET JUPITER
Authors:   AKAKI TSERETELI STATE UNIVERSITY(GEORGIA), Adeishvili Teimuraz , Aleksandrov Alksandar ,   BULGARIAN COSMONAUT, Okrochelidze Nino ,   AKAKI TSERETELI STATE UNIVERSITY(GEORGIA), Khvedelidze Leonardo ,   AKAKI TSERETELI STATE UNIVERSITY(GEORGIA)
Published: March 2023

The phenomena of incrsing intensity of atomic oxygen lines λ=5577Å and λ=6300Å during collition of Shumakher-Leve 9 comet with the Jupiter are considered. The corresponding physical mechanisms of generation of those glow are presented.
ON SEISMICSENSITIVITY OF BIOSYSTEMS AND COSMIC CYCLE PERTURBATION
Authors:   AKAKI TSERETELI STATE UNIVERSITY, Adeishvili Teimuraz , Aleksandrov Aleksandar ,   PILOT-COSMONAUT OF BULGARIA, Jikia Magdana ,   AKAKI TSERETELI STATE UNIVERSITY
Published: March 2023

The paper discusses the connections of the occurrences in biosphere with the cosmic seismic activity and cosmic cycles, namely, with the interposition of the sun and the planets. Some relation patterns between the changes of the radon concentration in thermal-mineral waters, the physiological events occurring in and biosystem and cosmic biorhythms have been revealed.
SOME PROBLEMS OF OPTIMAL MANAGEMENT OF ECONOMIC SYSTEMS
Authors:   SUMY STATE UNIVERSITY , DEPARTMENT OF ECONOMICS AND MANAGEMENT, Viktor Oliynyk , Korsakova St Rimskogo ,   SUMY STATE UNIVERSITY , DEPARTMENT OF ECONOMICS AND MANAGEMENT
Published: March 2023

The task of optimal management of economic system is examined. Sulution of the problem comes true through the method of the Pontryagin maximum principle. As a function of the equation of state will use the Gross Domestic Product (GDP). An optimal management of state of financial system United Kingdom from initial position to the set end position is offered.
Estimación de caudales extremos asociados a un periodo de retorno a partir de la modelación hidrológica continua de repronósticos climatológicos del ECMWF en zonas con datos escasos: caso de estudio en el Río La Silla, Monterrey, México
Authors: Jaime Daniel Eduardo Villarreal , López Juan Carlos Salinas , Enríquez Eliud Ricardo Fernández , Pérez David Clemente López , Flores José Luis Bruster , Fierro Adrián Leonardo Ferriño
Published: March 2023

La estimación de periodos de retorno de caudales tiene una gran incertidumbre debido a la poca o nula información disponible de datos medidos en muchas cuencas de México y del mundo. Este estudio muestra una metodología para generar una serie de tiempo sintética de caudales con mayor longitud que los datos observados y poder estimar periodos de retorno de caudales con menor incertidumbre. Para esto, se usan datos de repronósticos climatológicos del ECMWF, con un tiempo de espera de 5 a 8 días, como insumos en un modelo hidrológico agregado y continuo en la cuenca del Río La Silla, en Monterrey, México. El modelo hidrológico fue calibrado manualmente, obteniendo un comportamiento satisfactorio. Los periodos de retorno estimados a partir de las series de tiempo sintéticas son menores, pero muestran un comportamiento similar y están en su mayoría dentro del rango de incertidumbre a los obtenidos con datos observados. Finalmente, la incertidumbre se redujo de 2 a 7 veces dependiendo del periodo de retorno comparado, y para un periodo de retorno de 1000 años, esta se redujo alrededor de un 60%.
Saccular Cyst of the Larynx - A Clinical Case
Authors: Yurochko Fedir , Kopanska Dzvenyslava , Tsolko Taras , Domka Wojciech
Published: March 2023

Saccular cyst of the larynx is a benign supraglottic lesion, filled with mucus. It forms from the laryngeal sac, which is a soft tissue mass that is an extension of the laryngeal ventricle. Due to the extreme rarity, the true prevalence of the disease is unknown, although congenital laryngeal cysts have been reported to affect 1 in 300,000 newborns. The gold standard for diagnosing of saccular laryngeal cysts is laryngoscopy. Treatment of saccular cysts can only be done surgically, using endoscopic or external access. It is believed that endoscopic CO2 laser excision is the treatment of choice.
Aprimoramento dos processos de dimensionamento e operação de reservatórios de regularização
Authors:   , Monteiro Luane Ines Brito
Published: March 2023

O aumento da demanda pelo uso da água impulsionada pelo crescimento da população poderá agravar os cenários de escassez hídrica, assim faz-se necessário o uso de ferramentas de planejamento e gestão de recursos hídricos que possam minimizar os possíveis conflitos pelo uso da água. Em condições em que a disponibilidade hídrica natural em um curso de água não é suficiente para atender as demandas dos usuários, a construção de reservatórios torna-se uma alternativa plausível, uma vez que estas estruturas operam a partir do armazenamento temporário do excedente nos períodos em que as vazões afluentes superam as vazões de saída do reservatório. A vazão máxima de regularização é limitada a vazão média de longo termo (Q mlt ) e o potencial de regularização está relacionado com as perdas por evaporação ocorridas na superfície da área inundada pelo reservatório. Para o dimensionamento de reservatórios considera-se que a capacidade de armazenamento deverá ser suficiente para suprir a demanda de água nos períodos secos, porém, durante o período de enchimento as reservas disponíveis podem não ser suficientes para atender as demandas projetadas. O presente trabalho foi dividido em dois capítulos que abordam questões relacionadas ao dimensionamento e operação de reservatórios de regularização. No capítulo 1 foi proposto um aprimoramento do modeloDetermination of Reservoir Capacity using Synthetic Series(DRECASS)incorporando a perda de água por evaporação na superfície do lago considerando a variação diária da área inundada. A metodologia proposta a partir desse aperfeiçoamento foi denominada como DRECASS-EV e permitiu avaliar o potencial de regularização na seção de interesse para a construção do reservatório considerando as características climáticas locais, de forma que para regiões com maiores estimativas de evaporação obteve-se menor potencial de regularização. No capítulo 2 foi proposta uma metodologia para a avaliação das opções de operação de reservatórios de regularização durante o período de enchimento com base em análises que consideram o tempo de enchimento (TE) e a garantia de atendimento às demandas (G). A aplicação desta metodologia permitiu detectar as variações inerentes as condições climáticas das diversas regiões contempladas nos estudos de caso. O presente trabalho, no âmbito dos dois capítulos, apresenta ferramentas relevantes para o processo de dimensionamento de reservatórios que poderá auxiliar na compatibilização entre custos e benefícios correlatos à construção dessas estruturas, bem como para a tomada de decisões quanto a operação de reservatórios durante o período de enchimento. Palavras-chave: Regularização de vazões. Planejamento e gestão de recursos hídricos. Disponibilidade Hídrica. Evaporação de reservatórios.
Evaluation of the compressive strength of traditional elements used in masonry
Authors: Feijoo Calle Ernesto Patricio , Feijoo Guevara Bernardo Andrés , Poma Feican Paul Esteban
Published: March 2023

This work aimed to characterize the typical elements used in masonry made in the city of Cuenca (Ecuador) and said characterization was related to the property called compressive strength (UCS). These pieces are made in artisan factories for a long time and maintain a routine using materials and methodology. Its use is widespread. The elements referred to are adobe, brick, concrete, or cement block. To assess the compressive strength of these components, 30 specimens were made from each group, specimens with approximate dimensions of 5x5x10 cm, and submitted to the respective test with the appropriate equipment. The results present values that must be considered and concluded with observations that can improve certain aspects of the elements studied.
Technological impacts on the exploitation and use of Solar Energy.
Authors: Balladares Paul , Torres Leslie , Castro Vanessa
Published: March 2023

This document provides a bibliographic review of factors and aspects affecting the environment, its resources, and biodiversity through the presence, proximity, and operation of power plants or renewable and/or clean energy facilities. Although these types of energy sources contribute to a reduction in environmental impact, their implementation and operation require physical land, use chemical substances, release gases from various processes that impact fauna and flora, and generate environmentally harmful waste if the processes are not fully controlled. A systematic study was carried out, taking into account the basics of scientific articles from journals related to environmental studies, looking for and identifying the negative impacts of renewable and clean energy production. The negative impacts caused by the production of energy and non-conventional energy include a considerable number of negative factors, whose effects increase proportionally.
Natural response of thermoelectric materials and devices
Authors: Pirela Ronald , Velasquez Sergio
Published: March 2023

The research aims to introduce the theory of the natural response of electrical circuits to studying thermoelectricity and the characterization of thermoelectric devices and materials. New equations were found to calculate the thermal resistance of the contacts Rcold and Rhot, the thermal conductance K0, and the figure of merit ZT. Furthermore, it permits determining characteristic time constants τ0, τ1, τ2, and relaxation times and calculating the thermoelectric capacitances related to the device, material, and thermal contacts. Also, the characteristic angular frequencies are predicted ω0, ω1and, ω2. The described theory satisfies Newton’s law of cooling, Luttinger’s thermal transport coefficients theory, and the first and second-order electric circuit’s behavior. Additionally, it makes available the prediction of the transport coefficients and the characterization in situ. Like Harman’s method, these parameters can be measured simultaneously on the same device or sample.
İş Güvenliği Uzmanlarında Stres ile Sosyo-Demografik Özellikler Arasındaki İlişkinin İncelenmesi
Authors: KÖROĞLU Ahter Şimal , ZERVENT ÜNAL Belkıs
Published: March 2023

Bu çalışmada seçilmiş sosyo-demografik özelliklerin (cinsiyet, eğitim durumu, alınan ücret, uzmanlık sınıfı vb.) iş sağlığı ve güvenliği alanında çalışan iş güvenliği uzmanlarında görülen stres düzeyi üzerindeki etkisi irdelenmeye çalışılmıştır. Araştırma, 11.04.2021-29.06.2021 tarihlerini kapsayan dönem içinde e-anketi yanıtlayan 308 uzman ile yapılmıştır. Veriler SPSS® 22.0 paket istatistik programı ile analiz edilmiştir. Anketin birinci kısmında sosyo-demografik özelliklere yönelik sorular, ikinci kısımda ise iş güvenliği uzmanlarında stres seviyesini değerlendirmeye yönelik sorular yer almaktadır. Uygulanan anket çalışması sonucunda elde edilen bulgulara göre, işveren müdahalesi ve mevzuatın uygulanmasında yaşanan zorluklar uzmanların çalışma yaşamlarında çoğunlukla şikâyetçi oldukları durumlar olmakla beraber doküman hazırlama sürecinin uzunluğu, sorumluluğun fazla olması gibi etkenler diğer stres kaynakları olarak ifade edilmiştir.
CRISPR/Cas9 Systems and Gene Editing Technology
Authors: GÖK Özlem , BEYAZ Seda , ASLAN Abdullah
Published: March 2023

This review on gene editing technologies summarizes the features, applications and future of the CRISPR/Cas9 genome regulating system. Recently, the aim of searchers has been to improve cost-effective and reliable ways to perform goal modify to the genome of living cells. Thanks to the improvement of the CRISPR/Cas9 system, it has made progress in many fields such as molecular biology, biomedicine and medicine. Moreover, it has contributed to important developments in the field of genome engineering through targeted breaks in the DNA of almost every organism and cell type.
A Cohort Analysis of Food Expenditure Away From Home in Turkey
Authors: SENGUL Seda , SİGEZE Çiler
Published: March 2023

In this study, the expenditures of food away from home of households are examined using the Household Consumption Expenditure Survey, which was conducted by the Turkish Institute of Statistics from 2002 to 2018. We adopt the Dependent Double Hurdle model with the incorporation of age, period, and cohort effects and the impact of socio-demographic variables. Analysis results reveal that the cohort and age effects are significant in both participation and consumption on food expenditure away from home of household. The findings suggest that the expenditure of food away from home for younger cohorts rises faster for older cohorts. The elasticity of food expenditures for cohorts and age groups is increasing from the youngest cohort and from the youngest age group to the oldest cohort which is the largest age group. The results show that participation and consumption decisions are significantly affected by income and demographic characteristics in Turkey.
Genç İlçesi (Bingöl) ve Yakın Çevresinin Florası
Authors: DEMİRPOLAT Azize , KILIÇ Ömer , YİLDİRİMLİ Sinasi , BAGCI Eyup
Published: March 2023

Bu çalışma, Genç İlçesi (Bingöl), ve yakın çevresinin florasını tespit etmek amacıyla yapılmıştır. Çalışma alanından 684 bitki örneği toplanmıştır. 62 familyaya ait 265 cins olmak üzere toplamda 403 takson belirlenmiştir. Toplanan örneklerin 3’ü Pteridophyta, 400’ü Spermatophyta bölümlerine aittir. Spermatophyta’ya bağlı Coniferophyta alt bölümü 2 ve Magnoliophyta alt bölümü 398 takson içermektedir. Magnoliophyta alt bölümüne ait 398 taksonun, 335’i Magnoliopsida, 63’ü ise Liliopsida sınıfına ait olduğu tespit edilmiştir. 34 taksonun ise endemik olduğu bulunmuştur. Çalışma alanından 34 taksonun endemik olduğu tespit edimiş ve endemizm oranı % 8.4 olarak bulunmuştur. Toplanan örneklerin bitki coğrafyası bölgelerine göre dağılımı ise şöyledir: İran -Turan 141 (%34.9), Avrupa-Sibirya 24 (%5.9), Akdeniz 16 (%3.9), çok bölgeli veya fitocoğrafik bölgesi bilinmeyenler 222 (%55.1). Takson sayısı en fazla ilk 6 familya sırasıyla Asteraceae 51 (%12.6), Lamiaceae 42 (%10.4), Fabaceae 38 (%9.4), Poaceae 29 (%7.2), Brassicaceae 28 (%6.9), Apiaceae 27 (%6.7). İçerdikleri takson sayılarına göre en büyük 6 cins sırasıyla: Astragalus 9, Centaurea 8, Silene 7, Vicia 7, Salvia 6, Trifolium 6.
Türk Çimento Üreticilerinin 2015-2020 Yılları Arasında Finansal Açıdan Değerlendirilmesi
Authors: BABUR Abdul Rahim , TANTEKIN CELIK Gozde
Published: March 2023

Çimento sektörü, Türk inşaat sektörünün önemli alt sektörlerinden biridir. Türk çimento sektörü ulusal ve uluslararası pek çok firma ve/veya ortaklıklardan oluşmaktadır. Türk çimento firmaları, son yıllarda artan üretim kapasiteleri ile yurt içi ve yurt dışı satışlarını arttırarak, bölgesel olarak öne çıkmayı da başarmıştır. Son yıllarda ülkede yaşanan ekonomik dalgalanmalara 2020 yılında başlayan COVID-19 pandemisinin de eklenmesi ile ekonomik krizin etkileri pek çok sektörde hissedilmiştir. Bu çalışmada, ülkenin önde gelen sektörlerinden biri olan, çimento sektörünün 2015-2020 yıllarındaki finansal durumunun değerlendirilmesi hedeflenmiştir. Çalışma kapsamında; ilk olarak literatür taraması yapılmış ve yapı sektöründe sık kullanılan finansal oranlar belirlenmiştir. Çimento sektörünün finansal durumunun belirlenmesi amacıyla; likidite analizi, finansal yapı analizi, faaliyet durum analizi ve kârlılık analizi yapılmış ve çıkan sonuçlar doğrultusunda firmalara öneriler sunulmuştur.
Gaussian Quaternions Including Biperiodic Fibonacci and Lucas Numbers
Authors: GÖKBAŞ Hasan
Published: March 2023

In this study, we define a type of bi-periodic Fibonacci and Lucas numbers which are called bi-periodic Fibonacci and Lucas Gaussian quaternions. We also give the relationship between negabi-periodic Fibonacci and Lucas Gaussian quaternions and bi-periodic Fibonacci and Lucas Gaussian quaternions. Moreover, we obtain the Binet’s formula, generating function, d’Ocagne’s identity, Catalan’s identity, Cassini’s identity, like-Tagiuri’s identity, Honberger’s identity and some formulas for these new type numbers. Some algebraic proporties of bi-periodic Fibonacci and Lucas Gaussian quaternions which are connected between Gaussian quaternions and bi-periodic Fibonacci and Lucas numbers are investigated.
Ana Metal Sektöründe İş Sağlığı ve Güvenliğine İlişkin Değerlendirmeler ve Çözüm Önerileri
Authors: ERİN Efe , CANER AKIN Güfte , ALKAN Ümit
Published: March 2023

Bu çalışmanın amacı; Türkiye'de ana metal sektörünün iş kazası sayıları açısından hangi boyutlarda olduğunun ortaya konulması, ülkemizde ana metal sektöründe kayıtlara geçen kaza sayılarının seçilen Avrupa Birliği ülkeleri ile karşılaştırmasının yapılması, iş kazası ve meslek hastalıklığına neden olabilecek uygunsuzlukların incelenerek çözüm önerilerinin sunulması ile sektördeki iş sağlığı ve güvenliği çalışmalarına katkı sunmaktadır. Yapılan çalışmada; ana metal sektörü iş sağlığı ve güvenliği açısından ele alınmış olup SGK (Sosyal Güvenlik Kurumu) tarafından yayımlanan iş kazası sayıları ve EUROSTAT (Avrupa Birliği İstatistik Ofisi) tarafından yayımlanan Avrupa Birliği ülkelerinin kaza sayıları kıyaslanarak; genel kaza sıklığı, ölümlü kaza sıklığı, geçici iş göremezlik ve sürekli iş göremezlik kaza sıklığı, kaza sıklık hızı, kaza ağırlık hızı ve standardize iş kazası oranı parametrelerine göre hesaplamaları yapılarak analiz edilmiştir. Yapılan hesaplamalar sonucu ortaya çıkan değerler tablo ve grafiklerle sunularak yorumlanmıştır. Ayrıca ana metal sektörüne özgü; Çalışma ve Sosyal Güvenlik Bakanlığı'nca yapılan teftişlerde karşılaşılan uygunsuzluklar için çözüm önerileri üzerinde durulmuştur. Çalışma sonucunda, ana metal sektörü ülkemizde iş kazası sayıları açısından ilk sıralarda yer alan bir sektör olma özelliğinde olup seçilen Avrupa Birliği ülkeleri içerisinde 2012 senesinden sonra ilk sıralarda çıkmaktadır. Ayrıca sektördeki yüksek kaza sayılarına sebep olan uygunsuz durumlar için bir takım faydalı olabilecek çözüm önerileri ortaya konulmuştur. Sonuç olarak; sektörde dikkatle üzerinde durulması gereken risk etmenleri iş ekipmanlarından kaynaklı riskler, kimyasal risk etmenleri ve termal konfor, gürültü, titreşim, aydınlatma, radyasyon olarak ele alınan fiziksel risk etmenleridir. Bu çalışma, birinci yazarın İstanbul Gelişim Üniversitesi İş Sağlığı ve Güvenliği anabilimdalı yüksek lisans tezinden türetilmiştir.
Analysis of the role of pt ASDP Indonesia Ferry (Persero)'s training and development program to improving customer satisfaction
Authors: Indra Putri Dian Fairizah , Sakapurnama Eko
Published: March 2023

As a public service company, PT ASDP Indonesia Ferry (Persero) needs to improve the quality of human resources and service quality in order to maintain customer satisfaction. The type of study used is descriptive with a qualitative approach. This research was conducted to determine the role of the training and development program carried out by PT ASDP Indonesia Ferry (Persero) as an effort to improve the quality of service to the community. This study was design to show whether efforts to improve PT ASDP Indonesia Ferry (Persero)’s service quality are able to compete with their competitors.
The Power of Passionate Teaching and Learning: A Study of Impacts on Social Science Teacher Retention and Student Outcomes
Authors: Levitt Greg , Grubaugh Steven , Maderick Joseph , Deever Donald
Published: March 2023

Social science teachers play a crucial role in shaping students' understanding of the world and their place within it. They not only impart knowledge but also help students develop critical thinking skills, empathy, and a sense of civic responsibility.  Passionate teaching and learning are critical elements of effective education. This paper examines the impact of passionate teaching on teacher retention and wellness, as well as student learning, achievement, and well-being. Passionate teachers are defined by their enthusiasm, engagement, creativity, commitment, and flexibility, and have a positive impact on student motivation and engagement. On the other hand, passionate learners exhibit persistence, creativity, and autonomy in their learning journey. The paper also discusses strategies for increasing teacher passion for teaching, including professional development and a supportive school culture, and fostering student passion for learning, including a positive and engaging learning environment and opportunities for autonomy. The results of this study suggest that enhancing both teacher and student passion has a positive impact on teacher retention, teacher well-being, student achievement, and student well-being.
Robin George Collingwood on metaphysics as understanding the world
Authors: Hagiu Adrian , Lupașcu Constantin , Bortoș Sergiu
Published: March 2023

The aim of our study is to provide an overview of the concept of metaphysics as conceived by the British philosopher Robin George Collingwood and argue that his method still holds practical implications for contemporary philosophers. According to Collingwood, metaphysics is the science – that is, the knowledge – of the absolute presuppositions of an historical period. In other words, for him metaphysics is a historical science, albeit one which is not confounded with history. Thus, following the discussion concerning the constitution of Collingwood’s metaphysics, and a brief framing of his thought within the history of metaphysics, we will make the case in favor of the thesis that understanding or knowing the absolute presuppositions or principles of a historical period provides the individual with a vision of that period. As such, we will also advocate that the duty of those philosophers who wish to explain our contemporary world is to identify these principles. In order to achieve the objectives outlined in our study, we have employed both the hermeneutic analysis and the phenomenological description as our methods of choice. The results of our investigation serve a practical purpose in contemporary philosophy, as the individual who succeeds in shaping the metaphysics of our current time period is in fact shaping his own vision – Weltanschauung – of the contemporary world, his own ideas, principles or beliefs. Therefore, our study can be of great benefit to the reader who is interested in the metaphysics of the present, and the social changes it entails, precisely because it provides the necessary tools for this particular process of knowledge.
Item Analysis of Multiple Choice Questions (MCQs) for Dangerous Goods Courses in Air Transportation Management Department
Authors: Suryono Wiwid , Harianto Bambang Bagus
Published: March 2023

Analysis of question items is an assessment of the questions that are evaluated to measure quality. Analysis of question items has two ways, namely quantitative and qualitative question item analysis. The goal to be achieved is to find out the quality of the multiple-choice form of Final Semester Exam questions and also to detect sound and wrong questions. The method used in this study is the quantitative descriptive method. Data collection uses documentation, interviews, and observations. The Excel program uses data analysis to detect the quality of good and bad questions. The results of the quantitative analysis of the reliability of multiple-choice questions of 0.76 mean reliable questions. Difficulty index: 3 medium questions (6%), 47 easy questions (76%), and 9 very easy questions (18%). Discrimination index: 8 questions are very low (16%), 22 questions are low (44%), 9 questions are medium (18%), and t10 questions are high (20%). Distractor efficiency: 125 items of malfunctioning questions (83.33%) and 25 items of functioning questions (16.67%).
Language learning from children at an early age
Authors: Dulaj Fridrik
Published: March 2023

Language as an essential factor in human life can be said to be born together with the human. But how does it develop further and how is it acquired by the individual?
The issues that will be treated in this paper belong to the psycholinguistic field, a research discipline which is really in the first steps of its development, but considering that without acquisition, language cannot be realized and that its acquisition starts from birth, it turns out to be an interesting issue to be treated.
The human with a sound mental and social mechanism acquires language from birth, the first stages of childhood to the age that is considered as the age of almost complete acquisition of language and onwards. In this paper, as well, we will address the topic of speech acquisition by children, who initially use and speak the language as they hear it without their full consciousness, and later to influence to an older age and conscious way in it, by giving it a broader semantic meaning.
Regarding the acquisition of speech by children, there are a number of factors that significantly affect children and their speech, from the family, institutional and social background, etc.
Therefore, our paper aims to clarify some important issues about language acquisition by children.
An investigation into the Intercultural Competence, Self-awareness, and Well-being among Arabic-Speaking Immigrants in Finland
Authors: Al Khuja Hateem , Björkqvist Kaj
Published: March 2023

The aim of this study is twofold. First, explore the relationship between intercultural competence, and self-awareness and psychological well-being among the Arabic-speaking immigrant population in Finland; and second, compare the results of this study with a previous one conducted with Syrian refugees in Germany, with exactly the same methodology The intercultural competence of Arabic-speaking immigrants in Finland were evaluated to uncover the patterns and behaviours they exhibit in a foreign culture. In total, 358 respondents completed the questionnaire, the gender split was 36.6% female (131) and 63.4% male (227). The average age of the respondents was 34 years (Mage = 34.7, SD = 11.6). To assess intercultural competence, the APTOC, a 15-item scale with three main subscales (Openness to Other Cultures, Global Mindset, and Narrow Mindset), was used. The Self-reflection and Insight Scale was used to assess private self-awareness. The Brief Symptom Inventory's three subscales of depression, anxiety, and hostility were used to assess well-being. While Openness to Other Cultures and Global Mindset were found to be positively related to Self-reflection, Narrow Mindset was found to be negatively related to Self-reflection and positively related to Insight, Depression, Anxiety, and Hostility. Additionally, the findings reveal significant differences between this study's results and those of a previous study conducted in Germany, particularly concerning the length of stay in the host country and the effect of Openness to Other Cultures and Anxiety. These differences may inform the creation of programs and interventions aimed at improving intercultural competence and well-being among this population.
Regional connotations in the school environments in Deçan
Authors: Dacaj Brahimaj Rajmonda
Published: March 2023

This research belongs to the field of sociolinguistic, trying to bring linguistic changes in relation to society and emphasising the power of sociolinguistic factors in the appearance of these changes. The object of this study are the lectures of some teachers with special word stress, and some regional connotations which came out during this process. The gathering of material to conduct this research was made in the school environments in Deçan, during teaching hours while maintaining the adherence of the research, therefore this has brought out the real state of Albanian language in those environments.
The work has been done drawing out only dialectal forms which we have noticed during the lecture of subjects, which we have analyzed in the phonetic aspect and in morphological aspect, comparing them with standardized forms. Phonetic analysis involve word review in the vowel and consonant system, vowel groups and consonant groups, and some more highlighted phonetic occurences. The results have proved that the traditional speech does not disappear without leaving its trace despite the rise in the standard language level.
The purpose of this research is to identify and analyze the regional connotations in the lectures ofthe teachers in the school environments in Deçan.
Within this paperwork we will see some dialectal forms which remained in use. The identification and gathering of the material was done by participating as an observer in teaching hours of the teachers, always, not telling them the true purpose of our presence, so that we could get the material in the most natural way. While gathering the material we have used technical tools to record teachers voice. The collected material is used to highlight the regional connotations, on the other hand for their theoretical explanation we used the literature in the field of sociolinguistic.
Robust Control of an Electromagnetic Suspension System
Authors: Morovati Samaneh , Djouadi Seddik
Published: March 2023

The electromagnetic suspension system is a motivating and inspiring project for students to investigate the primary principles of electrical engineering, such as control theory, including robust performance and modeling uncertainty. This paper studies robust control methods for an electromagnetic suspension system with H_2, H_infinity and mu-synthesis control approaches to provide robust system performance in the presence of uncertainties and disturbances. System uncertainties are critical parts of the interconnected system modeling, affecting its performance. The control methods tackle the system uncertainties, including unmodeled dynamics, parametric uncertainty, and linearization error. Robust performance analysis for all proposed control methods is provided, and closed-loop system performance is illustrated. The performance robustness is validated using illustrative simulation results.