bluuebunny/crossref_metadata_2025 huggingface dataset:
Feeding ecology, reproductive biology, and sexual dimorphism of Boana raniceps (Anura: Hylidae) in an area of Caatinga, northeastern Brazil
Authors: Machado Heitor Tavares de Sousa , Silva Cristiana Ferreira da , Benício Ronildo Alves , Ávila Robson Waldemar
Published: June 2024

The number of studies on the ecology of the genus Boana is vast in Brazilian biomes. Among the different species of this genus, B. raniceps is considered a common and widely distributed species. Despite this, only a few studies have explored the ecology of this species in the Caatinga biome. In this study we present information on the diet composition, reproduction, and sexual dimorphism of B. raniceps in the Caatinga biome, northeastern Brazil, providing additional information about the natural history of the species. We observed that B. raniceps has a generalist diet, consuming a great diversity of prey categories, but with a numerical and volumetric prevalence of Coleoptera. Interestingly, there was an ontogenetic and sexual variation in the diet, with the Relative Importance Index (RII) for each prey category differed between males, females, and juveniles. Females were found bearing mature eggs in both the rainy and dry seasons. The number of eggs carried by each female ranged from 153 to 3904. There was sexual dimorphism in body size, with females larger than males. However, size was not a limiting factor in fecundity. Here, we present new information on the natural history of B. raniceps and reinforce the need for further studies with widely distributed and known species. This is the first study to demonstrate ontogenetic and sexual variation in the diet of anurans of the genus Boana.
Biomasa y carbono almacenado en bosques de la Amazonia colombiana
Authors: Díaz-Chaux Jenniffer Tatiana , Ordoñez-García Mauren Andrea , Cerón Cindy Tatiana , Velázquez-Valencia Alexander
Published: June 2024

Los bosques de la Amazonia colombiana son uno de los más grandes sumideros de carbono a nivel global. En el departamento del Caquetá estos bosques representan alrededor del 80 % del territorio, con importantes aportes socioeconómicos y ecológicos. Las actividades agrícolas y pecuarias generan altas presiones sobre estos ecosistemas, promoviendo la pérdida de las coberturas naturales, la biodiversidad y el aumento de gases de efecto invernadero causantes del cambio climático. Se cuantificó el contenido de biomasa y carbono en bosques amazónicos, en un bosque alto de tierra firme en la vereda Peregrinos, del municipio de Solano (Caquetá). Se estableció una Parcela Permanente de Monitoreo de Biodiversidad y Carbono (PPMBC) de una hectárea desarrollada en 2021, se estimó la biomasa, el carbono almacenado y la tasa de fijación de carbono en función de CO2 equivalente. Mediante modelos alométricos para el área de vida, la biomasa aérea fue 240,17 t ha-1, la biomasa radicular de 44,02 t ha-1 en la PPMBC, con un total de 284,19 t ha-1 de biomasa y un carbono total almacenado de 142,09 t ha-1, lo que contribuye a la remoción de 521,50 t ha-1 de dióxido de carbono de la atmósfera. Los bosques amazónicos estudiados poseen alta capacidad de almacenamiento y fijación de carbono y se reconoce su importancia en la mitigación de los efectos del cambio climático con la remoción de 9,3 Tg de emisiones de CO2 atmosférico producto de la deforestación y cambios en el uso del suelo en la Amazonia caqueteña.
Un ciclo inédito de pintura mural del siglo XVI: el programa de la vida de San Francisco de Asís en la iglesia de San Luis Obispo, Tlalmanalco, México
Authors: Carmona Moreno Emmanuel Alejandro , Pérez-Flores José-Luis
Published: June 2024

En este artículo proponemos la identificación de un ciclo iconográfico que hasta el momento ha pasado desapercibido por la historiografía especializada. Se trata de una serie de escenas pintadas en los muros de la zona del presbiterio de la iglesia de San Luis Obispo, en Tlalmanalco, Estado de México. A partir del registro visual de las catorce escenas y de su análisis compositivo, logramos establecer el tema de la mayoría de ellas, utilizando fuentes escritas y la referencia de otros programas visuales, método que nos permitió proponer un posible sendero iconográfico que nos remonta a una serie de grabados flamencos obra de Philip Galle (1537-1612) imágenes que relatan visualmente la vida de San Francisco. Gracias a este procedimiento presentamos nuestras reflexiones sobre la importancia de este programa iconográfico y la representación de la vida de San Francisco en la pintura mural conventual del siglo XVI en la Nueva España.
Entre la atención pastoral y los problemas del siglo: ser párroco en la diócesis de Puebla durante la formación de la república (1831-1847)
Authors: Rosas Salas Sergio
Published: June 2024

A partir de la renovación de la historiografía sobre la Iglesia Católica y las sociedades latinoamericanas en los escenarios locales después de las independencias, este artículo analiza las problemáticas que enfrentaron los curas de la diócesis de Puebla (México) durante la gestión episcopal del obispo Francisco Pablo Vázquez (1831-1847). El objetivo es comprender las expectativas de la jerarquía eclesiástica hacia los párrocos en los años de formación de la república, específicamente en las décadas de 1830 y 1840. Se busca examinar las dificultades que los curas enfrentaron en su labor cotidiana y cómo asumieron su doble papel, tanto espiritual como temporal, en un periodo de profundas transiciones políticas. A través del análisis de la correspondencia entre los párrocos y su obispo, el artículo destaca las principales problemáticas que atravesaron los curas en Puebla durante un periodo marcado por el fin del patronato español en la Iglesia mexicana. Se concluye que entre 1831 y 1847, la jerarquía eclesiástica y los clérigos dedicados a la cura de almas asumieron que el clero parroquial desempeñaba un papel social como ministro espiritual, actuando como mediador de lo sagrado y defensor de la jurisdicción eclesiástica. Al mismo tiempo, se le asignaba un papel político como garante de la paz y la estabilidad social en los contextos locales.
El comercio por el río Magdalena: rutas, puertos, itinerarios y embarcaciones (1543-1611)
Authors: Aristizábal-Quintero Verónica
Published: June 2024

el presente artículo examina cómo el río Magdalena y sus afluentes se convirtieron en las principales rutas de transporte y en los ejes articuladores de la economía en el Nuevo Reino de Granada. La metodología empleada fue el análisis de documentos históricos, como visitas de la tierra y disposiciones de la Audiencia de Santafé relacionadas con la navegación fluvial. Se destaca la importancia que adquirió la extracción de oro para el funcionamiento del comercio entre el Nuevo Reino de Granada y la península, revelando las rutas, puertos y desembarcaderos establecidos para mejorar la navegación y el acceso a las provincias y recursos. También se abordan las dificultades del transporte de mercancías, incluyendo los salarios de los nativos bogas y los tipos de embarcaciones utilizadas. En conclusión, se muestra cómo la instauración de rutas comerciales, puertos y el desarrollo de tecnologías de navegación reflejan un sistema económico centrado en la extracción de oro y plata.
Trends in Electrochromic Materials: Industrial Perspective in Colombia
Authors: Hurtado-Palacios Luis Felipe , Castro Narvaéz Sandra Patricia , Jaramillo-Aguirre Alonso
Published: June 2024

Dissertations across various sectors (industrial, governmental, and research) advocate for the manufacture of products with innovative scientific and technological developments as a driving force to generate added value and, in a dual approach, respond to the expectations of domestic consumers and encourage exports in the country. This analytical and descriptive bibliometric review on electrochromism, a property of some materials that allows them to reversibly change their optical transmittance via the repeated and consecutive intercalation and extraction of electric charges under a small alternating polarity electric potential, contributes by describing the fundamentals, recent research advances, and the feasibility of national industrial application, given the existence of mineral resources, chemical inputs, companies, and qualified human talent at different levels of sectors related to chromic devices and energy storage.
Surface Roughness Value Recommended for the Manufacture of Antibacterial Metal Surfaces: A Review
Authors: Calvo-Correa Martha Patricia , Cortés-Rodríguez Carlos Julio , Camargo-López Julián R.
Published: June 2024

The manufacturing of antibacterial metal surfaces has been widely studied in the elaboration dental and orthopedic implants. Surface characteristics such as wettability, chemistry, electrostatics, and roughness have been described as factors for avoiding bacterial adhesion. However, surface roughness is still debated among authors regarding its effect on antibacterial surfaces. This paper reviews the existing literature to identify the recommended surface roughness values for metal implants to avoid bacterial adhesion, and it evaluates the different roughness parameters used in this regard. This compilation found no agreement when it comes to the exact roughness that a metal implant’s surface should have to avoid bacterial adhesion and the subsequent formation of biofilms. In general, different authors recommend manufacturing smooth surfaces with a nanoscale roughness, smaller than the size of the target bacterium.
Determining the Effect of Photovoltaic Module Surface Temperature on Generation Efficiency
Authors: Karaca Cengiz , Yaver Seren
Published: June 2024

It is imperative to consider the environmental impact of energy production and its cost in deciding how to meet future energy needs. In this regard, it is possible to harness the power of the sun by using photovoltaic (PV) cells. However, when the temperature of a PV cell increases, its generation efficiency is negatively affected. The open-circuit voltage of PV modules is the most sensitive parameter to temperature changes. As the temperature rises, this parameter decreases, and the short-circuit current increases. The circuit's resistance also rises as the electrons’ speed is reduced. Temperature also affects the lifespan of PV cells, increasing the rate of thermal decay in their materials. On the other hand, when solar radiation is absorbed at lower temperatures, the system’s efficiency, power capacity, and useful life increase. PV module surface temperatures can be reduced in a variety of ways, e.g., the surface can be cooled using water. This work studied hybrid PV-thermal modules under the climate conditions of the Hatay province (Turkey) in order to assess the effect of water cooling on their generation efficiency. The results allow stating that up to 52.6% more electricity can be generated by cooling the module's surface. Additionally, it was found that, in order for PV modules to perform efficiently in Hatay's climate, they must operate at a maximum surface temperature of 55 °C.
Reduction of Large Scale Linear Dynamic MIMO Systems Using ACO-PID Controller
Authors: Alkhasraji Jafaar Mohammed , Shneen Salam W. , Sulttan Mohammed Q.
Published: June 2024

The MIMO technique is an essential element in the standards of communication systems (IEEE 802.11n, IEEE 802.11ac, WiMAX, and LTE) because it helps to increase their capacity. This paper employs a model order reduction (MOR) technique with a PID controller, an ACO algorithm, and the ITAE fitness function to reduce the large-scale linearity of the MIMO technique. The numerator and denominator parameters are set by minimizing the ITAE fitness function between the transient responses of the original and the reduced model. The objectives are achieved with the PID controller and the ACO algorithm for the unit step input. The simulation results show a good system performance. The controller performance is presented with regard to the dynamic response in terms of rising time, settling time, and overshoot/undershoot. Moreover, the results of the proposed method are compared with four literature reports for validation purposes. Evaluating the parameters within the time frame and the error values with and without the PID controller and ACO algorithm allowed validating the functioning of the proposed method. Furthermore, the simulation results revealed that the proposed scheme exhibited sufficient robustness and demonstrated a reduction in the time-domain response and error values.
Evaluating the Use of Recycled Brick Powder as a Partial Replacement for Portland Cement in Concrete
Authors: Aquino Rocha Joaquin Humberto , Morales Ruiz Boris Marcelo , Toledo Filho Romildo Dias
Published: June 2024

Portland cement is one of the most used construction materials. However, its production represents between 5 and 7% of the total CO2 emissions. On the other hand, during construction and demolition activities, different wastes are produced, including recycled brick powder (RBP), whose potential as a supplementary cementitious material (SCM) has been demonstrated in the literature. This research aims to evaluate RBP as a partial replacement for Portland cement in concrete. 5 to 10% of Portland cement was replaced with RBP in two strength designs (20 and 25 MPa) in order to propose concretes that meet the requirements for use in construction. Tests involving slump, compressive strength, tensile strength by diametrical compression, absorption, density, and void content were performed. The results show that a 5% RBP replacement does not affect workability in concrete mixes, as it maintains their mechanical resistance and slightly improves their physical properties. On the other hand, 10% RBP replacements adversely affect workability and reduce tensile strength. These results are attributed to pozzolanic activity and the physical effect caused by RBP, whose performance may be improved by reducing RBP particles and increasing their specific surface area (SSA). Using RBP as a replacement for Portland cement to produce concrete is a viable alternative with a sustainable approach.
A New Methodology Based on Artificial Intelligence for Estimating the Compressive Strength of Concrete from Surface Images
Authors: Doğan Gamze , Özkiş Ahmet , Arslan Musa Hakan
Published: June 2024

This study used digital image processing and an artificial neural network (ANN) to determine the compressive strength of concrete in reinforced concrete buildings without coring. First, 32 concrete samples were produced in the laboratory, with different water-to-cement ratios, aggregate types, amounts of binder, compression values applied to fresh concrete, and amounts of additive. Next, the locations of 192 cores were visualized, and the compressive strengths of their corresponding core samples were matched with the surface images of the concrete, which were then digitized by image processing. The digitized images were the input layer, and the training and testing procedures were performed using the ANN as an output layer. After testing, the model was validated in existing reinforced concrete buildings. For the verification process, 20 cores taken from randomly selected concrete buildings were used. Although the results obtained from the samples produced in the laboratory were satisfactory, the success rate of the samples taken from the field was limited. Finally, the findings of this study are compared against the literature on this subject, especially from the last two decades.
Health and work: a new perspective
Authors: Cortés-Reyes Edgar
Published: June 2024

Work can be conceived from different perspectives that vary among individuals and communities. In the beginning of humanity, work was associated with activities that sought to satisfy basic needs; then, thanks to the industrial revolution, it became specialized following the innovation and automation of many processes.
Escasez de pediatras en Colombia
Authors: Restrepo-Gualteros Sonia , Escobar-Córdoba Franklin
Published: June 2024

Aunque en Colombia la base de la pirámide poblacional es cada vez más estrecha debido al aumento de personas mayores, la población en general sigue siendo joven según el informe final del censo de 2018;1 de acuerdo con este documento, se estima que en el país hay 48 258 794 personas (51.2% mujeres) distribuidas por grupos de edad de la siguiente manera: 0-14 años 22.6%, 15-65 años 68.2% y 65 años y más 9.1%.
Characteristics of the recommendations included in the clinical practice guidelines commissioned by the Colombian Ministry of Health (2013-2021): A systematic review
Authors: Muñoz-Flórez Anamaría , Balcázar-Muñoz Ángela Manuela , Villar Juan Carlos , Rodríguez Felipe Angel , Queremel-Milani Daniel
Published: June 2024

Introduction: Over the last decade, and following the publication of an instructional methodological guide for the development of clinical practice guidelines (CPG), the Colombian Ministry of Health and Social Protection (CMHSP) commissioned the development or update of a series of CPGs. However, to date, there is no diagnosis of the characteristics of the recommendations made in such CPGs.
Objective: To explore the characteristics of the recommendations included in CPGs commissioned by the CMHSP between 2013 and 2021.
Materials and methods: A systematic review of Colombian CPGs published between 2013 and 2021 was conducted. Only CPGs reporting the level of certainty of the supporting evidence and the strength of the recommendation in at least 70% of its recommendations using the GRADE approach were included. Information on the certainty, direction, and strength of each recommendation was extracted. Additionally, the agreement between the language used (wording) in the recommendation and its strength was assessed in a random sample of 20% of the recommendations.
Results: Of the 59 CPGs retrieved, 36 met the inclusion criteria, for a total of 1 609 recommendations analyzed. The median number of recommendations per CPG was 41 (IQR: 27-55), 81.4% were in favor, 62.77% were classified as strong, 58.23% were based on low/very low-quality evidence, and 56.06% were intended for treatment. Furthermore, 51.39% and 74.60% of strong and weak recommendations were based on low/very low-quality evidence, respectively. Regarding the analysis of their wording, there was disagreement between the language and the certainty of evidence in 50.31% of the 324 recommendations randomly reviewed.
Conclusions: The CPGs evaluated include a relatively high number of recommendations, most of them in favor and rated as strong but based on low-quality evidence, which may be controversial and generate barriers to their understanding and implementation. These results also indicate the need to improve adherence to the CPG development methodology and standards among Colombian CPG development groups.
Project Spotlight: Pavilion parking structure succeeds through innovation
Authors: Atkinson William
Published: June 2024

Precast concrete enabled a five-level underground parking structure for the new Penn Pavilion in Philadelphia, Pa., to support structural loads from the steel-framed tower being constructed above without the delay that would have been required using cast-in-place concrete. Shockey Precast, based in Winchester, Va., was selected as the precaster.
White-fronted Bee-eater Merops bullockoides increasing its presence along the Orange River in southern Namibia
Authors: Cunningham (Snr) Peter L , Cunningham (Jnr) Peter L
Published: June 2024

The White-fronted Bee-eater Merops bullockoides is common in northeastern Namibia, in the Caprivi Strip. This paper reports the first records for southern Namibia, along the Orange River. The first record was made in 2010, in southeastern Namibia. By 2023, they were observed in small groups on seven out of 12 days on a canoe trip downstream of the 2010 sighting, as far west as Senderlingsdrift.
Saponina en dieta de camarón blanco Penaeus vannamei posible causa de enteritis hemocítica y efectos negativos sobre el crecimiento y supervivencia
Authors: Lozano-Olvera R. , Palacios-González D.A. , Tirado-Flores E.A. , Puello Cruz Ana Carmela
Published: June 2024

La optimización de técnicas de producción e intensificación en la camaronicultura han diversificado las estrategias en nutrición y salud. La inclusión de aditivos para mejorar resultados es cada vez más común y es de gran importancia evaluarlos adecuadamente. Este estudio realizó un análisis integral sobre el efecto de saponina en juveniles de camarón blanco Penaeus vannamei. Se incluyeron 4 concentraciones de saponina (0%, 2%, 4% y 6%) en una dieta comercial y se alimentaron durante 28 días bajo condiciones controladas de cultivo. El alimento sin saponina (0%) mostró los mejores resultados, el crecimiento fue significativamente diferente (p <0.05) respecto a las demás concentraciones. La sobrevivencia mostró reducción conforme la inclusión de saponina se incrementó, al igual que el daño en tracto digestivo (0%>2%>4%>6%). Las concentraciones evaluadas en este estudio no produjeron mejoras en los camarones, por el contrario, provocaron problemas en su tracto digestivo y en el alimento con mayor proliferación de hongos a mayor inclusión de saponina.
Aktualne ograniczenia oraz możliwe sposoby zwiększenia poziomu reprezentatywności wyborów do Sejmu RP
Authors:   Uniwersytet Wrocławski, Pieniężny Dawid , Jankowski Marcin ,   Uniwersytet Wrocławski
Published: June 2024

The problem of distortion of the representativeness of elections to the Sejm of the Republic of Poland is widely noticed. Now, the vote of the inhabitants of one constituency may weigh less that in another. The aim of this paper is to present de lege ferenda postulates to increase the level of representativeness of Sejm elections. The authors carry out a legal analysis and a classical systemic analysis, pointing out the deficiencies of the current electoral system and proposing solutions. There are research questions: (1) Does the current electoral system ensure that elections to the Sejm are truly representative? (2) Is it possible to ensure that elections to the Sejm are truly representative? The conclusions of the analysis show that the problem under study appears to be increasingly serious for the democracy and civil society, but there are legal solutions that can increase the level of representativeness of Sejm elections.
Reelekcja prezydenta w systemie politycznym Republiki Włoskiej. Od teorii do praktyki
Authors:   Uniwersytet Jana Kochanowskiego w Kielcach, Kaszuba Paweł
Published: June 2024

The Constitution of the Italian Republic, in the section devoted to the head of state, does not refer anywhere to the issue of re-election or term limits. From the beginning of the Italian Republic, the debate on this issue was theoretical in nature, until 2013. Then, for the first time in history, a sitting president was elected for another term. The situation took place again in 2022. These events resulted in the transfer of the topic of re-election from a theoretical to a practical one, being perceived as a real tool in the hands of the electors. The aim of this work was to examine the issue of presidential re-election in the Italian political system. Legal and political analysis has shown that the presidential re-election, which for years was perceived in Italy as an undesirable solution, ultimately contributed twice to the stabilization of the Italian political system.
Glosa do wyroku Trybunału Konstytucyjnego z 11 stycznia 2024 r., sygn. akt K 23/23
Authors:   Uniwersytet Kaliski im. Prezydenta Stanisława Wojciechowskiego, Młynarska-Sobaczewska Anna
Published: June 2024

The commentary concerns the judgment of the Constitutional Tribunal of January 11, 2024, in which the Tribunal performed a self-consistent review and declared as unconstitutional a provision of the Law on the State Tribunal due to a particular interpretation of a legislative omission. The text indicates the objections to such a ruling and outlines the consequences of such a departure from the principle of accusatorial procedure.
Computing Unsatisfiable Cores for LTLf Specifications
Authors: Roveri Marco , Di Ciccio Claudio , Di Francescomarino Chiara , Ghidini Chiara
Published: June 2024

Linear-time temporal logic on finite traces (LTLf) is rapidly becoming a de-facto standard to produce specifications in many application domains (including planning, business process management, run-time monitoring, and reactive synthesis). Several studies have challenged the satisfiability problem thus far. In this paper, we focus instead on unsatisfiable LTLf specifications, with the objective of extracting the subset of formulae that cause inconsistencies within them, i.e., the unsatisfiable cores. We provide four algorithms to this end, which leverage the adaptation of a range of state-of-the-art algorithms to LTLf satisfiability checking. We implement those algorithms extending the respective implementations and carry out an experimental evaluation on a set of reference benchmarks, restricting to the unsatisfiable specifications. The results put in evidence that the different algorithms and tools exhibit complementary features determining their efficiency and efficacy. Indeed, our findings suggest exploring different strategies and algorithmic solutions for the extraction of unsatisfiable cores from LTLf specifications, thus confirming the challenging and multi-faceted nature of this problem.
A RESEARCH ON BANK EMPLOYEES IN THE IMPLEMENTATION OF REMOTE WORKING MODEL
Authors: Günsan Nida , Yergin Haluk
Published: June 2024

In this study, the effect of teleworking on bank employees is examined. In the study, a questionnaire was applied to private and public bank employees in Van using the teleworking policies scale. The data were analyzed by using SPSS 26 and Lisrel 8.80 software with t-test, One-Way Analysis of Variance, and Pearson Correlation tests. In the Independent t Test (t) analysis of the participants according to gender, marital status, and bank type; while there was no significant difference between the sub-dimensions of the teleworking policies scale according to gender, bank, and marital status, a significant difference was found in the sub-dimension of the teleworking policies scale according to marital status. In the ANOVA analysis according to the participant's education level, age, working time in the organization, and the type of position worked; there was no significant difference between the sub-dimensions of the teleworking policies scale according to the education level, age, working time, and the type of position worked; according to the type of position worked; a significant difference was found in the sub-dimension of the teleworking policies scale in job performance. The Pearson Correlation method was used to find the relationship between the variables and a significant positive relationship was found.
Benlik Kurgusunun Bağış Motivasyonları ve Bağış Niyeti İle İlişkisi
Authors: Yılmaz Süleyman , Aydın Ali Emre
Published: June 2024

İnsanın yaşamsal faaliyetlerinin devamlılığı için ihtiyaç duyduğu kan ve bileşenlerinin tedarik edilebilmesinin
tek yolu sağlıklı bir bireyin gönüllü bir şekilde kanını bağışlamasıdır. Dolayısıyla bireyleri kan bağışına
yönlendiren motivasyon faktörlerini anlamak oldukça önemlidir. Bu süreçte bireylerin kendi benliklerini
kurgulama şeklinin etkili olabileceği bilinmektedir. Bu doğrultuda çalışmanın amacı, özgecilik ve bencillik
ekseninde çeşitlenen bağış motivasyonları ile bağış niyeti arasındaki ilişkide bireyin benlik kurgusunun rolünü
ortaya koymaktır. Bu amaç doğrultusunda çevrim içi anket tekniği kullanılarak 522 katılımcıdan elde edilen
veriler SPSS programı aracılığıyla analiz edilmiştir. Analizler sonucunda, benlik kurgusu boyutlarından
bireyciliğin, sosyal beğeni ile bağış niyeti arasındaki ilişkide aracılık rolünün bulunmadığı ancak materyalizm
ile bağış niyeti arasındaki ilişkide aracılık rolünün olduğu tespit edilmiştir. Toplulukçu benlik kurgusunun ise
özgecilik ve bağış niyeti ilişkisinde aracılık rolünün bulunmadığı ancak hem empati ile bağış niyeti arasındaki
ilişkide hem de dini değerler ve maneviyat ile bağış niyeti arasındaki ilişkide aracı olduğu belirlenmiştir. Son
olarak, çalışmanın teorik ve pratik katkıları tartışılmıştır.
Ar-Ge ile Marka Değeri Arasındaki İlişki: Türkiye Uygulaması
Authors: Çerez Sedat , Merter Abdullah Kürşat , Alataş Gökhan
Published: June 2024

Bu çalışmanın amacı araştırma ve geliştirme giderlerinin (Ar-Ge) marka değerleri üzerindeki etkisini araştırmaktadır. Bu bağlamda, Brand Finance kuruluşu tarafından 2012 ile 2021 yılları arasında yayımladığı Türkiye’nin en iyi 100 markası raporunda yer alan 40 şirkete ait 288 gözlem verisi elde edilmiştir. Analizler, en küçük kareler regresyon (OLS) regresyon yöntemiyle ve kümelenmiş standart hatalar tahmincileri kullanılarak gerçekleştirilmiştir. Araştırma sonuçları, Ar-Ge giderleri ile marka değeri arasında pozitif ve istatiksel olarak anlamlı bir ilişki olduğunu ortaya koymaktadır. Bu ilişki, Ar-Ge harcamalarının bir, iki ve üç dönem gecikmeli değerleri için de geçerli olup marka değeri ile pozitif bir ilişki içinde olduğunu ortaya koymaktadır. Ek olarak, yapılan ek analizler Ar-Ge harcamalarının, şirketlerin marka değeri raporundaki sıralamasındaki değişimlerle de pozitif bir ilişki içinde olduğunu belirtmektedir. Bu bulgular, cari ve geçmiş dönem Ar-Ge giderlerinin, sadece mevcut marka değerine değil, aynı zamanda şirketlerin marka sıralamasındaki dinamiklerine de etki ettiğini göstermektedir. Bu çalışma, Ar-Ge harcamalarının şirketlerin marka değeri üzerindeki etkisini kapsamlı bir şekilde ortaya koyarak, iş dünyası ve akademik araştırmalara önemli katkılar sunmaktadır. Araştırmanın sonuçları, işletme yöneticilerine ve stratejistlere, şirketlerin rekabetçi avantajlarını ve pazar konumlarını iyileştirmek için Ar-Ge harcamalarını etkin bir şekilde kullanmaları konusunda değerli içgörüler sağlamaktadır.
Geç Dönem Osmanlı Dünyasında Budizm’i Anlamak ve Yorumlamak: Şemseddin Sâmî ve Ahmed Midhat Efendi
Authors: Oruç Doğukan
Published: June 2024

Geç dönem Osmanlı dünyasında hem genel kültür sahasının içeriği sayılan bilgi çerçevesindeki paradigma değişimi hem de pek çok konu hakkındaki aslî referans kaynaklarının Avrupa’da üretilen yeni eserlerle ikame edilmesi devrin müelliflerini o güne değin hakkında kalem oynatılmayan çeşitli konularda metin üretmeye teşvik etmiştir. Ek olarak, dinler tarihinin ayrı bir bilimsel disiplin olarak ortaya çıkışı da Osmanlı dünyasında bu alanda bir literatürün vücuda getirilmesinde önemli rol oynamıştır. Bu makalede de aynı yüzyılı tecrübe etmiş ve dinler tarihi disiplinine ait sayılabilecek eserler üretmiş iki Osmanlı müellifinin, Şemseddin Sâmî ile Ahmed Midhat Efendi’nin, Budizm’i anlama ve yorumlama çabaları ele alınmaktadır. Sözü geçen yazarların konu hakkında kendilerinden önce yazılmış eserlerden devraldıkları bilgiler incelendiği gibi hem Sâmi hem de Midhat’ın düşünüş biçimlerini etkilemesi son derece muhtemel olan biyografilerine de değinilmiştir. Çalışma esas olarak Sâmî’nin Esâtîr adlı eseri ile Ahmed Midhat’ın Tedrîsî Târih-i Edyân adlı çalışmasının Budizm bağlamında karşılaştırmalı bir tahlilini içermektedir. Bu iki metin 19. yüzyılda yaşamış iki entelektüelin Osmanlı dünyasında doğrudan temas kurma imkânları bulunmayan bir dini anlamak noktasında geliştirdikleri stratejileri ortaya koymaları bakımından önemli veriler sunmaktadır.
Tribute to Johan Froneman
Authors: Cameron Edwin
Published: June 2024

A tribute to Johan Froneman, by a longstanding colleague and friend.
Slike barunice Vere Nikolić Podrinske u fundusu Nacionalnog muzeja moderne umjetnosti u Zagrebu
Authors: Rončević Elezović Ivana
Published: June 2024

Nacionalni muzej moderne umjetnosti u Zagrebu posjeduje sedam slika Vere Nikolić Podrinske solidne likovne kvalitete. U radu se predstavlja, interpretira i kontekstualizira slikarska ostavština Vere Nikolić Podrinske u fundusu tog muzeja, s osvrtom na historiografiju i u vezi s dokumentacijom o umjetnici iz Arhiva za likovne umjetnosti Hrvatske akademije znanosti i umjetnosti.
Žene iza kamere – školovanje, djelovanje i doprinos profesionalnih fotografkinja, fotoamaterki i fotoreporterki u Hrvatskoj između dvaju svjetskih ratova
Authors: Magaš Bilandžić Lovorka
Published: June 2024

U tekstu se razmatraju modaliteti školovanja, djelovanja, položaja i uloge fotografkinja u Hrvatskoj tijekom međuratnog razdoblja. Na temelju arhivskog i periodičkog istraživanja donosi se niz novih podataka o radu profesionalnih i amaterskih fotografkinja te prisutnosti žena u okviru fotografske struke i scene, a koja je bila znatno veća nego što je do sada poznato. Povijest fotografskog medija u Hrvatskoj sagledava se iz ženskog rakursa, a posebna pozornost posvećuje se rekonstruiranju položaja i uloge žena u djelovanju fotografskih ateliera, analizi njihove percepcije u javnosti i prisutnosti na izložbenim manifestacijama te evidentiranju angažmana nepoznatih i danas zaboravljenih fotografkinja
A retrospective claims analysis of US pediatricians prescribing practices for the treatment of Molluscum Contagiosum
Authors: Martina Cartwright , Tomoko Maeda-Chubachi , Carolyn Enloe , Stephen Stripling
Published: June 2024

Introduction: Molluscum Contagiosum (MC), a common viral skin infection affects mostly children, is caused by Molluscipoxvirus. MC is characterized by flesh-colored, round, dome-shaped, umbilicated bumps. Pediatricians are often the first to diagnose MC. Objective: To examine US pediatrician’s MC treatment management using claims data. Methods: Syneos used the Compile Claims database to collect all medical and pharmacy claims for pediatric patients diagnosed with molluscum (ICD10 Code B081) in 2019-2020. Pediatric patients with a Molluscum (B081) claim from a pediatrician practice were calculated along with patients prescribed a prescription by the same pediatrician within 30 days of a molluscum claim. Practitioners were categorized as “wait and see,” “treater” or “referrer.” Frequency data were captured. Results: From 2019-2020, 260,788 molluscum patients ≤ 19 years were diagnosed by 56,026 healthcare providers. Pediatricians were responsible for a majority of molluscum diagnoses: 72% of patients (187,228) diagnosed by 35,017 pediatricians. Most pediatricians initially managed MC with a “wait and see” approach (91%). If a “wait and see” pediatrician initiated treatment, half managed by prescription, whereas “treaters” used in-office procedures (81%) and prescriptions (23%). Mupirocin (45%) and triamcinolone (23%) were preferred prescriptions. Conclusion: Mupirocin and triamcinolone were likely used to treat signs of inflammation indicative of MC resolution known as Beginning of the End (BOTE) sign. Neither are FDA approved for MC nor antiviral; mupirocin use without secondary bacterial infection may contribute to resistance. Newly approved MC indicated therapies should be considered and a better understanding of BOTE is essential to distinguish MC resolution from secondary infection.
Titreşim ve gürültü verileri ile soğutma sistemindeki arızaların teşhisi
Authors: Cingiz Zafer
Published: June 2024

Basınç, sıcaklık, tüketilen enerji, titreşim ve gürültü gibi parametrelerde bir değişiklik, soğutma sisteminde bir sorun olduğunu göstermektedir. Bu çalışmada soğutma sistemi ekipmanlarından kompresörde tespit edilen titreşim ve gürültü ölçüm değerleri ile arıza teşhisi arasında ki ilişki incelenmiştir. Beş farklı arıza durumu geliştirilmiştir. Ölçülen sıcaklık ve basınç verileri ile titreşim ve gürültü değerleri bilgisayara (PC) aktarılmıştır. Sistemin normal ile arızalı durumlarındaki titreşim ve gürültü değerleri arasındaki farklardan arıza tespitleri yapılmıştır. Sistemdeki arıza türlerine bağlı olarak gürültü ve titreşim değerlerinin değiştiği görülmüştür. Ortalama titreşim değerleri, normal çalışma durumunda 0,1471 m/s2, kirli kondenserde 0,2373 m/s2, tıkalı genleşme valfinde 0,2209 m/s2, aşırı soğutucu akışkan şarjında 0,2129 m/s2, eksik soğutucu akışkan şarjında 0,1962 m/s2 ve kompresör arızasında 0,2227 m/s2 olarak belirlenmiştir. Gürültü değerlerinde, normal çalışmada 68,1 dB, kirli kondenserde 93,49 dB, tıkalı genleşme valfinde 93,81 dB, aşırı soğutucu akışkan şarjında 92,42 dB, eksik soğutucu akışkan şarjında 92,14 dB ve kompresör arızasında 94,5 dB olarak belirlenmiştir. Gürültü ve titreşim değerlerinin birbirine yakın değerlerden oluşmasına rağmen arızanın türü hakkında fikir verebileceği görülmüştür. Bu değerler, normal ve arızalı çalışma durumları için sadece titreşim ve gürültü ölçüm değerleri ile arıza tespiti yapılabileceğini göstermiştir.
Sedenionic matrices and their properties
Authors: Gürsoy İsmail Gökhan , Bektaş Özcan
Published: June 2024

In this article, the matrix algebra is well-known concept in mathematics, has been extended to sedenionic-coefficient matrices using sedenions, which have many applications in recent years. Subsequently, sedenionic-coefficient matrices have been obtained in their real, complex, quaternionic and octonionic forms. Based on these definitions, the arithmetic operations of addition, multiplication, conjugation, transpose and conjugate transpose for sedenionic matrices and their complex, quaternionic and octonionic variations have been established and their algebraic properties scrutinized. Lastly, vector space over real and complex numbers and module structure over quaternions of sedenionic matrices has been searched.
Myrmecofauna (Hymenoptera: Formicidae) of Bozcaada Island of Türkiye
Authors: Toptaş Nermin , Karaman Celal
Published: June 2024

Ants, keystone organisms of the nature, show great diversity in the Mediterranean basin. In addition to the mainland, the islands of the Mediterranean countries have great importance and species diversity in terms of ants. In the present study, the ant fauna of Bozcaada, the third largest island of Türkiye was investigated. Ant specimens were collected from Bozcaada in 2018-2019 by means of the aspirator. As a result of evaluation of 700 ant samples collected from the island, 60 species belonging to 4 subfamilies and 22 genera were identified. Among these, the subfamily Ponerinae, 10 genera and 48 species were recorded for the first time for the ant fauna of Bozcaada. The ant faunas of the Greek islands Samos, Chios and Lesbos, which are located closer to the Turkish mainland than the Turkish islands, Bozcaada and Gökçeada were compared with the Bray-Curtis similarity analysis.
First experience of treating patients with atrial fibrillation using thoracoscopic isolation with left atrial appendage excision in the North-Western State Medical University named after I.I. Mechnikov
Authors: Yakovlev Dmitrii A. , Lenkin Andrey I. , Stepanova Vera V. , Marinin Valeriy A. , Petrov Nikolai V. , Verendeev Vladislav K.
Published: June 2024

The given article describes the first experience of a thoracoscopic isolation of pulmonary veins and left atrial appendage excision in the North-Western State Medical University named after I.I. Mechnikov. The clinical case features a woman with a long history of paroxysmal atrial fibrillation, severe left atrium dilation, failure in a pace control drug therapy and no effect of radiofrequency catheter isolation of pulmonary veins.
Additionally, there outlined the advantages and the significance of employing the method of thoracoscopic ablation in patients with symptomatic paroxysmal and long-term persistent atrial fibrillation, — in case if antiarrythmic drugs and radiofrequency catheter ablation proved ineffective, as well as in patients with a long-term persistent atrial fibrillation along with a severe left atrium dilation.
Obstructive sleep apnea as a potentially reversible cause of nighttime bradyarrhythmias. Clinical case
Authors: Kucherenko Natalia G. , Bebekh Anton N. , Umarova Irina A. , Abukova Aigul R.
Published: June 2024

Obstructive sleep apnea syndrome is a common condition, especially among obese patients. Patients with obstructive sleep apnea syndrome have an increased risk of developing arterial hypertension and cardiovascular events, as well as cardiac arrhythmias, which include reflexively occurring bradyarrhythmias and episodes of asystole at night. Treatment of obstructive sleep apnea syndrome leads to an improvement in the patient’s quality of life and also reduces cardiovascular risk and eliminates associated bradyarrhythmias during night sleep.
Multifaces of hypertrophic cardiomyopathy: a case of transformation of hypertrophic phenotype into dilated
Authors: Novikova Tatiana N. , Andreeva Alina E. , Bitakova Fatima I. , Novikov Vladimir I. , Gladysheva Kristina A. , Petrova Polina V. , Stalnova Polina A. , Tokareva Nadezhda A.
Published: June 2024

The article presents a clinical case of a rather rare course of hypertrophic cardiomyopathy with the transformation of a hypertrophic phenotype into a dilated phenotype against the background of the “burned-out phase” phenomenon, ventricular and supraventricular rhythm disturbances, and multiple genetic mutations. Timely started disease-modifying therapy (quadruple therapy) for chronic heart failure led to reverse positive remodeling of the left chambers of the heart.
TRENDS AND DETERMINANTS OF CASH USAGE IN NON-EUROZONE EU MEMBER STATES
Authors:   University of Zadar, Department of Economics, Maté Martina , Brizar Zvonimir
Published: June 2024

Technological progress and digital innovations changes consumer payment habits worldwide. Although cash payments are still predominant payment method in European countries, a decreasing trend is observed. Simplicity and accessibility of non-cash ways of payments, along with decreasing availability and restrictions on the use of cash, threaten to push cash from circulation. On the other hand, European Central Bank expressed the importance of cash as a store of value and reliable payment instrument that should be available to all eurozone citizens. The aim of this paper is to analyse the trends and determinants of cash usage in 8 non-euro zone European union countries over the 2013 – 2021 period, based on set of selected indicators. The result show heterogeneity within the group, but with a common downward trend, and the significant influence of technological and sociocultural indicators on cash usage.
THE IMPACT OF SELECTED MACROECONOMIC VARIABLES ON HOUSE PRICES IN CROATIA
Authors:   Juraj Dobrila University of Pula, Faculty of Economics and Tourism “Dr. Mijo Mirković”, Benazić Manuel , Učkar Dean
Published: June 2024

Recognizing the macroeconomic determinants that have a statistically significant influence on the formation of house prices is in the interest of the general public due to its informative effect on various interest groups involved in housing construction. Thus, real estate buyers, investors, as well as local government and self-government units should be interested in this information because monitoring of standard macroeconomic variables can provide conclusions about the possible development of residential property prices. Previously conducted research can be classified into four distinctive categories depending on what they take as determining variables: microelements specific to individual micro location, the impact of the COVID-19 pandemic, standard macroeconomic variables, or tourism development. The aim of this study is to analyze the influence of selected macroeconomic variables on residential property prices in Croatia. This study employs Autometrics, i.e. an automatic computer implementation of general-to-specific VAR (vector autoregressive) modelling framework and quarterly data on real GDP, domestic credit, consumer prices, interest rate, tourist arrivals and house prices in the period from March 2005 to September 2022. Performed Granger causality tests and impulse response functions analysis indicate that an increase in real GDP, domestic credit and tourist arrivals increases house prices in Croatia while an increase in consumer prices and interest rate reduces them.
Myxobiota of the İskenderun Gulf (Mediterranean Sea/Türkiye) and its Environment
Authors: Baba Hayri , Sevindik Mustafa
Published: June 2024

This study aims to determine the myxobiota of the İskenderun Gulf and its environment. This study was carried out on samples collected from 9 different stations in the İskenderun Gulf district in 2019-2022. Myxomycetes samples were collected from leaves, tree bark, and decayed and non-rotting plant materials. This aim is to detect both the myxobiota of this region and the halophytic myxomycetes species. The collected samples have developed myxomycete sporophores by using the moist chamber technique. In addition, myxomycetes which were developed in their natural environment were collected. As a result of the field and laboratory studies, 161 samples from different localities were collected and processed and 111 myxomycete samples were obtained from these samples. 41 species belonging to 6 ordo, 12 families, and 20 genera have been defined. 3 species were obtained only from the natural environment, 30 species were obtained only from moist chamber culture, and 8 species were obtained from both moist chamber culture and natural area. Arcyria cinerea, Didymium difforme, D. squamulosum, and Physarum pusillum were determined as abundant. While the number of species is rare in the seaside regions, it was observed that the further away from the sea, the number of species increased, especially in forest areas. A. cinerea, D. difforme, and D. dubium are the most common species on the beach and near the seaside. While cosmopolitan species were observed in abundance, Physarida members were found to be common in this results area. This study has contributed to the myxobiota of Türkiye.
Erzurum İli Pasinler İlçesi Tarım Arazilerinin Değerine Etki Eden Faktörlerin Analizi
Authors: Muti Ali , Birinci Avni
Published: June 2024

Bu çalışmada amaç Erzurum ili Pasinler ilçesinde tarım arazilerinin değerine etki eden faktörlerin belirlenmesidir. Bu kapsamda Erzurum ili Pasinler ilçesine bağlı 14 mahallede çalışma yapılmıştır. Bu bağlamda, tüm mahallelerde toplam 60 anket yapılmıştır. Veriler regresyon modelinde stepwise yöntemi ile analiz edilmiştir. Oluşturulan modelde bağımsız değişkenlerden arazinin kiraya verilme durumu, çiftçinin eğitim durumu, arazinin alım satım durumu, arazinin geometrik şekli, arazinin mülkiyet durumu ve ürün çeşidi bağımlı değişkenleri arazi değerini %58.1 düzeyinde anlamlı bir şekilde açıkladığı görülmüştür. Diğer bağımsız değişkenlerin ise bağımlı değişkeni istatistiki olarak anlamlı bir şekilde açıklamadığı sonucuna ulaşılmıştır.
Investigation (In-Vitro) of Antiproliferative Properties of Pseudopediastrum boryanum (Turpin) E. Hegewald Extracts in Various Cancer Cell Lines
Authors: Demiriz Yücer Tuğba
Published: June 2024

In this study, antiproliferative effects of Pseudopediastrum boryanum isolated and cultured from Tokat Yeşilırmak River benthic habitats were investigated with in-vitro experiments.
Anticancer activity tests of algae extracts were tested in cancer cell lines using the BrdU cell proliferation ELISA method. Vero (African Green Monkey Kidney Tumour Cells) and HeLa (Human Uterine Carcinoma Cells) were examined in concentrations of 100, 250 and 500 µg/ml. As a result of antiproliferative tests, P. boryanum was found to have effective anti-cancer properties. P. boryanum extract concentrations of 250 and 500 µg/ml had a significant cytotoxic effect on Vero and HeLa cell lines after 24 hours.
According to the results, P. boryanum is estimated to be a good option for quantitative pharmaceutical analyses and could be evaluated in the pharmaceutical industry.