bluuebunny/crossref_metadata_2025 huggingface dataset:
Uçuş Harekat Uzmanlarının Örgütsel Stres Kaynaklarının Belirlenmesi Üzerine Nitel Bir Araştırma (A Qualitative Research on Organizational Stress Sources of Flight Dispatchers)
Authors: Başaran Ayşe , Mutlu Savaş
Published: March 2023

Amaç –Bu çalışmanın amacı; Türk sivil havacılık sektöründe faaliyet gösteren havacılık işletmelerinde çalışan uçuş harekat uzmanlarının örgütsel stres kaynaklarının belirlenmesidir.Yöntem –Araştırmada, nitel araştırma yöntemi olan yarı yapılandırılmış görüşme tekniği kullanılmıştır. Araştırmada amaçlı örnekleme çerçevesinde ölçüt ve kartopu yöntemiyle Türkiye’deki 408 lisanslı uçuş harekat uzmanından mesleğini temsil edebilecek 24 kişilik bir çalışma grubuna ulaşılmıştır. Bu grupta yer alan kişiler ile birebir yapılan görüşmelerin ses kayıtları araştırmacı tarafından manuel şekilde verbatim (söylendiği gibi) Microsoft Word programına aktarılmıştır. Verilerin incelenmesinde MAXQDA 2020 Analiz Programı kullanılmıştır.Bulgular –Araştırma sonuçlarına göre uçuş harekat uzmanlarının örgütsel stres kaynakları 3 tema (işin kendisi açısından, çalışma ortamı ve kişilere etkisi açısından) ve 16 başlık altında toplanmıştır.Tartışma –Havacılık sektörü örgütsel stresin yoğun olarak yaşandığı sektörlerden biridir. Özellikle operasyonun merkezinde bulunan uçuş harekat uzmanları bu durumla sıklıkla karşı karşıya kalmaktadır. Bu çerçevede örgütsel stresin olumsuz sonuçlarından korunmak maksadıyla uçuş harekat uzmanlarındaki örgütsel stresi azaltıcı çalışmalar yapılması önemli görülmektedir.
Hile Tespitinde Makine Öğrenmesi Yöntemlerinin Kullanılmasıve Model Performanslarının Değerlendirilmesi (Using Machine Learning Methods to Detect Fraud and Evaluation of Model Performances)
Authors: Gür Önder , Tarhan Mengi Banu
Published: March 2023

Amaç –Çalışmada,hilenin verdiği zararın azaltılmasına yönelik teknoloji temelli araçlarla çözüm üretilmeye çalışılmıştır. İşletmelerde sıklıkla karşılaşılan hileli ödemelerin tespiti için makine öğrenimi yöntemleriylebir model oluşturulması amaçlanmaktadır. Yöntem –Çalışmada, bir bankaya ait finansal ve finansal olmayanlar bilgilerle oluşturulan 594.643 adetlik yapay veri setinden yararlanılmıştır. Veri seti kullanılarak makine öğrenmesinin Karar Ağacı, Destek Vektör Makinesi, Lojistik Regresyon ve Yapay Sinir Ağlarıyöntemleriyle tahmin yapılmıştır. Yöntemlerin algoritmaları veri setinin %69’u ile önce eğitilmiş, sonra veri setinin %31’i ile tahmin yapması sağlanmıştır. Bulgular -Yöntemlerin oluşturduğu değerlere bakıldığında doğruluk metriği sırasıyla Karar Ağacı %99,42, Destek Vektör Makinesi %99,11, Lojistik Regresyon %98,95 ve Yapay Sinir Ağları %99,35 hesaplandığı görülmüştür. 1.620 tane hileli işlemi doğru tahmin ederek en fazla doğru tahmin yapan ve bu süreçleri en hızlı (1,32sn) gerçekleştiren yöntem karar ağacı olmuştur. Sonuçlara göre ortalama olarak en başarılı, en hızlı ve en çok doğru tahmin yapan modeli karar ağacının oluşturduğu tespit edilmiştir.Tartışma -Uygulamada kullanılan yöntemlere bağlı olarak veri setiyle yapılan model denemelerinde makine öğrenimi yöntemleri yanlış pozitif ve yanlış negatif değerleri üretmiştir. Her ne kadar bu değerleri sıfıra indirmek mümkün olmasa da azaltılması yönünde geliştirilmeye açıktır.
Sosyal Zekânın Örgütsel Sosyalleşme ve Hizmet Verme Yatkınlığı Üzerindeki Etkisinin İncelenmesi: Konaklama İşletmeleri İşgörenleri Üzerine Bir Araştırma (Investigation of the Effect of Social Intelligence on Organizational Socialization and Service Orientation: A Research on Hospitality Business Employees)
Authors: Çilingir Ferhan , Erkılıç Eren
Published: March 2023

Amaç –Bu çalışmada Trabzon’da faaliyet gösteren dört ve beş yıldızlı konaklama işletmeleri işgörenlerinin sosyal zekâ düzeylerinin örgütsel sosyalleşme ve hizmet verme yatkınlıkları üzerindeki etkisini incelenmesi amaçlanmıştır.Yöntem –Trabzon’daki dört ve beş yıldızlı konaklama işletmelerinde çalışan 401 işgörenden anket yardımıyla veriler toplanmıştır. Araştırmaya dâhil olan işgörenlerin sosyal zekâ, örgütsel sosyalleşme ve hizmet verme yatkınlığı kavramına yönelik ifadelerinin bireysel niteliklerine göre anlamlı bir farklılık gösterip göstermediği bağımsız örneklem için t testi ve varyans analizi ile çözümlenmiştir. Bununla birlikte katılımcıların sosyal zekâ, örgütsel sosyalleşme ve hizmet verme yatkınlığı arasındaki ilişki korelasyon ve çoklu doğrusal regresyon analizi ile incelenmiştir.Bulgular –Elde edilen bulgular göre; katılımcıların sosyal zekâya yönelik görüşlerinin sadece yaş grubuna göre anlamlı bir farklılık gösterdiği, örgütsel sosyalleşme ve hizmet verme yatkınlığına ilişkin görüşlerinin ise cinsiyet haricinde diğer bireysel özelliklere göre anlamlı bir farklılık gösterdiği tespit edilmiştir. Çalışmada sosyal zekâ ile örgütsel sosyalleşme arasında istatistiksel olarak anlamlı bir ilişki bulunmaz iken sosyal bilgi süreci ve sosyal farkındalık boyutunun örgütsel sosyalleşme ve alt boyutları ile arasında istatistiksel olarak anlamlı ilişkinin olduğu saptanmıştır. Bununla birlikte sosyal zekâ ile hizmet verme yatkınlığı arasında istatistiksel olarak anlamlı bir ilişki olduğu tespit edilmiştir. Buna ek olarak regresyon analizi sonuçlarına göre sosyal zekâyı en çok etkileyen hizmet verme yatkınlığı boyutunun ihtiyaçları karşılama yeteneği boyutu olduğu sonucuna varılmıştır.Tartışma –Konaklama işletmelerindeki işgörenlerin sosyal zekâsı sosyal bilgi süreci kapsamında işletme açısından örgütsel sosyalleşmeyi bireysel açıdan ise hizmet verme yatkınlığını önemli derecede etkilemektedir.
Resistance to energy metabolism - targeted therapy of AML cells residual in the bone marrow microenvironment
Authors: Tabe Yoko , Konopleva Marina
Published: March 2023

In response to the changing availability of nutrients and oxygen in the bone marrow microenvironment, acute myeloid leukemia (AML) cells continuously adjust their metabolic state. To meet the biochemical demands of their increased proliferation, AML cells strongly depend on mitochondrial oxidative phosphorylation (OXPHOS). Recent data indicate that a subset of AML cells remains quiescent and survives through metabolic activation of fatty acid oxidation (FAO), which causes uncoupling of mitochondrial OXPHOS and facilitates chemoresistance. For targeting these metabolic vulnerabilities of AML cells, inhibitors of OXPHOS and FAO have been developed and investigated for their therapeutic potential. Recent experimental and clinical evidence has revealed that drug-resistant AML cells and leukemic stem cells rewire metabolic pathways through interaction with BM stromal cells, enabling them to acquire resistance against OXPHOS and FAO inhibitors. These acquired resistance mechanisms compensate for the metabolic targeting by inhibitors. Several chemotherapy/targeted therapy regimens in combination with OXPHOS and FAO inhibitors are under development to target these compensatory pathways.
Development complexity of cyber-physical systems: theoretical and practical benefits from Pre-Integrated Architectures
Authors: Gougeon Philippe , Hamelin Etienne
Published: March 2023

Aim: The growing complexity of cyber-physical systems impacts resources and development time. Hence, numerous component-based design approaches have been developed to mitigate complexity and, consequently, the R&D effort. But is complexity even measurable? The aims of this paper are: to contribute to the Cyber-Physical Systems (CPS) and Product Line Engineering (PLE) fields of research; to understand and apply the tools estimating Cyber-Physical System complexity; to evaluate the benefits of Pre-Integrated Architectures (PIARCHs) from the point of view of Cyber-Physical System complexity. Methods: Based on prior studies, we found that complexity is measurable. We used a structural complexity metric to calculate the impact of PIARCHs by creating variants of a given system architecture. In a practical application project, we used PIARCHs on two types of use cases: generic ones, like localization and perception, and a highly specific one: Urban Automated Driving. Results: Based on the calculation established by complexity metrics, PIARCHs reduce complexity. This has been revealed in theoretical and practical approaches. Generic use cases like localization and perception of an automated vehicle have more benefits with PIARCHs than the complex Urban Automated Driving use case. This can be explained by the fact that the number of inputs and parameters is smaller, and after the initial investment, the field of applications is wider. Conclusion: Project complexity is measurable, and the impact of PIARCHs mitigating complexity can be assessed. Their impact varies according to the complexity of the use case and the width of the field of applications. A minimum of complexity is required to justify the initial investment. However, an excessive PIARCH complexity reduces the number of applications and the payback of the initial investment.
Catch assessment of commercially important gastropods in Guang-Guang, Mati City, Davao Oriental, Philippines
Authors: Maynawang Imee , Macusi Edison
Published: March 2023

Gastropods are one of the most valuable seashells, and they have high economic and nutritional value. This study aimed to assess the value and uses of commercially harvested gastropods, including species composition, time of gleaning, and methods used to harvest the gastropods in their habitat. To do that, data were collected by monitoring the catch of selected gleaners and by using semi-structured questionnaires. The survey interview was conducted in Guang-Guang, Mati, Davao Oriental, with N = 60 respondents while the actual monitoring of selected gleaners and their catch was conducted from February to April on three random days in a week during the low tide period (N = 30). The result of the study showed that the most abundant gastropod species caught by gleaners belong to the family of Strombidae, Cerithiidae, Nassaridae, and Neritidae. Gleaners mostly catch the little bear conch (Strombidae), which was the most abundant gastropod in the area, and sold immediately in the market and their neighborhood. Gleaners take 2-3 hours a day to harvest and gain an income of PHP 200—350; the catch per unit effort of gleaners ranged from 0.30 to 0.50 kg/hour of daily gleaning. Results comparing the species, weight, and count of gastropods showed significant differences (P ≤ 0.05). The top three species caught are little bear conch with a monthly mean count of 38,447 (732 kg) followed by the horn shell with 12,714 (129 kg) and nassa mud snail with 3627 (32 kg). The gastropods were exploited in various sizes such as the little bear conch at a size of 36—40 mm, horn shell at a size of 36—45 mm, and the nassa mud snail at a size of 21—25 mm. Based on the assessment, the gastropods in Guang-Guang have a high exploitation level of gleaning and need policy interventions for their protection.
Liver Transplant in Patients With Hepatocarcinoma: Imaging Guidelines and Future Perspectives Using Artificial Intelligence
Authors: Pomohaci Mihai Dan , Grasu Mugur Cristian , Dumitru Radu Lucian , Toma Mihai , Lupescu Ioana Gabriela
Published: March 2023

Hepatocellular carcinoma is the most common primary malignant hepatic tumor and occurs most often in the setting of chronic liver disease. Liver transplantation is a curative treatment option and is an ideal solution because it solves the chronic underlying liver disorder while removing the malignant lesion. Because of organ shortages this treatment can only be applied to carefully selected patients according to clinical guidelines to minimize risk of recurrence. Artificial intelligence is an emerging technology with multiple applications in medicine with a predilection for domains that work with medical imaging like radiology. With the help of these technologies laborious tasks like segmentation can be automated and workflow in radiology departments can be improved. Other roles include in depth pixel-wise analysis of lesions by radiomics or deep learning in order to find new imaging criteria that allow better prediction of treatment response or risk of recurrence. Liver transplant is an ideal treatment for patients with hepatocellular carcinoma in the setting of chronic liver disease and artificial intelligence could provide solutions for improving the management of liver transplant candidates to improve survival.
Improving Healthcare Quality by Unifying the American Electronic Medical Record Systems. Time for Change
Authors: Kumari Roopa , Chander Subhash
Published: March 2023

Innovation development in healthcare has paved the path towards the improvement in system efficiency, patient care and cost-effective healthcare services, increasing the overall efficiency of the healthcare system in a significant manner. Electronic medical record system has fostered interoperability and collaboration in healthcare departments by enabling different systems to exchange and use patient data. This trend has been accelerated dominantly by the pandemic, leading to increased use of telemedicine, referring specifically to the use of electronic communication to provide healthcare services remotely. Moreover, an increased prevalence towards the use of artificial intelligence and machine learning in healthcare has contributed effectively towards the rigorous and informed analysis of large amounts of data as well as to identify patterns or trends that may be useful for improving care delivery or identifying potential issues. A unified electronic medical record System that will generate competitive opportunities and success prospects with reference to enhanced interoperability in US healthcare departments, can contribute towards the improvement in the quality and efficiency of care by making it easier for healthcare providers to access and share patient information as well as reducing the risk of errors in effective patient care.
The Importance of Context in Inert Gas Asphyxiation Deaths: An Autopsy Case Report
Authors: Gelman Tyla , Sulaiman Andrew , James Christine , Peterson Diane
Published: March 2023

Inert gas asphyxiation is a rarely observed form of suffocation in which the decedent breathes in an inert chemical, such as helium or nitrogen, in the absence of oxygen. The ultimate cause of death is not a result of the chemical itself, but rather from the oxygen starvation as the inert gas displaces vital oxygen. In this case report, a 66-year-old Caucasian female with a history of gastroparesis, degenerative disc disease, and chronic pain was found deceased with a plastic bag secured around her head. Plastic tubing terminated inside the bag and connected to a nearby canister of nitrogen gas. This case study discusses the challenges in determining inert gas asphyxiation as the cause of death in a postmortem setting and emphasizes the importance of understanding the decedent’s history and context of the environment in which they were found.
Antidotal Effect of Dihydroxyacetone in Aluminum Phosphide-Intoxicated Patients
Authors: Heidari Reza , Niknahad Hossein , Jangjoo Ali , Asghari Vahidreza
Published: March 2023

Background: Aluminum phosphide (AlP), also known as “rice tablet,” is widely used as an effective pesticide. However, AlP poisoning is a common cause of mortality in many countries, such as Iran. Unfortunately, there is no specific antidote for AlP toxicity to date. AlP releases phosphine gas when it is exposed to moisture and acid. Phosphine is a robust mitochondrial toxin that could significantly inhibit cellular energy metabolism. AlP poisoning is an emergency condition that needs instant and effective intervention. Dihydroxyacetone (DHA) is a simple saccharide used for several pharmacological as well as cosmetic purposes. Previously, we found that DHA could significantly prevent mitochondrial impairment induced by toxic agents such as cyanide and phosphine in various in vitro and in vivo experimental models.Methods: Hospitalized patients (n = 111) were evaluated for eligibility criteria. Among these patients, n = 35 cases were excluded due to incomplete data (n = 11) and suspicion of poisoning rather than AlP (n = 24). Meanwhile, n = 76 cases with confirmed AlP poisoning were included in the study. AlP-poisoned patients who did not receive DHA (n =18) were used as the control group.Patients (n = 58) received at least one dose of DHA (500 ml of 5% DHA solution w/v, i.v.) in addition to routine treatment of AlP poisoning. Arterial blood gas (ABG), blood pH, bicarbonate levels, and other vital signs and biochemical measurements were monitored. Moreover, the mortality rate and time of hospitalization were evaluated in both DHA-treated (n = 58) and AlP-poisoned patients without DHA administration (n = 18). Several biomarkers were assessed before (upon hospitalization) and after DHA treatment. The routine tests for AlP-poisoned patients in this study were the measurement of electrolytes (K+ and Na+), WBC, RBC, hemoglobin, INR, carbonate (HCO3), blood pH, PaCO2, and PaO2 and SGPT, SGOT, BUN, Cr. Results: Upon patients' admission, significant decreases in blood pH (acidosis), blood PaO2, and HCO3 levels were the hallmarks of AlP poisoning. It was found that DHA significantly alleviated biomarkers of AlP poisoning and tremendously enhanced patients’ survival rate compared to patients treated based on hospital routine AlP poisoning protocols (no DHA). No significant adverse effects were evident in DHA-treated patients in the current study.Interpretation: These data suggest that parenteral DHA is a novel and effective antidote against AlP poisoning.Trial registration: IR.SUMS.REC.1394.102
Post Covid19 Mobile NFC Payment
Authors: JosephNg Poh Soon , Wong J. H. , Phan Koo Yuen
Published: March 2023

Cashless payments are so common and popular that people are gradually not taking cash out of the house. But people still need to carry some cash and a couple of debit cards, which increases the risk of people having their cash or cards lost or stolen. The mobile payment method based on scanning codes solves the problem that you don't need to carry cash or cards when you go out, but you still need to enter the APP to scan the code to complete the payment. This report proposes a POS system with NFC technology, enabling people to complete transactions with new payment methods and reducing carrying other payment tools. Therefore, this paper explores the understanding of the proposed system and improves its functionality. The project aims to facilitate quickness for users to complete transactions, that is, near-field communication, using POS systems with received signals for transactions. Data is collected via triangulated research methods from various respondents across Malaysia with statistics and analysis on the proposed solution. The contactless NFC POS solution allows users to interact with the system via smartphone host card emulation application technology to complete transactions and allow people to reduce carrying other payment tools.
Underwater carbon fiber reinforced polymer (CFRP)–retrofitted steel hydraulic structures (SHS) fatigue cracks
Authors: Riveros Guillermo , Mahmoud Hussam
Published: March 2023

Recent advances in the use of fiber-reinforced polymers (FRP) to retrofit steel structures subjected to fatigue cracks have shown to be a viable solution for increasing fatigue life in steel hydraulic structures (SHS). Although several studies have been conducted to evaluate the use of FRP for retrofitting metal alloys and the promising potential of such has been well-demonstrated, the application has never been implemented in underwater steel structures. This Coastal and Hydraulics Engineering Technical Note presents the implementation of FRP patches to repair fatigue cracks at Old Hickory Lock and Dam miter gate.
Technological aspects of processing steel products in powder mixtures containing hot‑dip galvanizing waste
Authors: Dashkevich V. G. , Myshkevich P. S. , Barankevich N. M.
Published: March 2023

The paper considers the technological features of thermodiffusion galvanizing of fasteners in a powder mixture containing the main waste of hot galvanizing it is gartzink. The advantages of preliminary fluxing over thermal diffusion zinc plating are noted. The microstructure of the obtained diffusion layers on steel 40Х was studied, the features of the saturation kinetics and the quality of the resulting layers were noted.
Priority areas of professional development and retraining of specialists in the direction
Authors: Ryzhova T. V. , Ushakova I. N.
Published: March 2023

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Trends in the development of foundry production
Authors: Marukovich E. I. , Sadokha M. A.
Published: March 2023

An analysis of the state of foundry production in the world is presented, as well as an analysis of the state of foundry production in the Republic of Belarus. The dynamics of changes in production capacities, the degree of loading and the volume of production of castings for various types of alloys is shown. It is established that the structure of cast products produced both in the world and in the Republic of Belarus is in constant dynamics and there is a constant change in the ratio of production volumes from various alloys. The development of the foundry production of the Republic of Belarus as a whole is similar to the world foundry production, however, there is a certain time lag and certain differences in the ratio for different types of casting.
Research of the liquid‑glass HTS compositions with sand of the Novinsky deposit. Message 1.
Authors: Tkachenko S. S. , Sokolov A. V. , Druzhevsky M. A. , Mikhailov O. V.
Published: March 2023

The article is devoted to the selection of optimal parameters of a chemically hardening mixture based on quartz sand with a liquid‑glass binder cured with liquid esters for the production of castings of heavy machinery, machine tools and shut‑off valves. The analysis of the quality of molding sands of three brands, of different origin, was carried out. The strength characteristics of mixtures of various compositions are studied. Based on the data obtained, conclusions are drawn about the optimal characteristics of sand and the amount of binder additive. The compositions of easily knocked‑out environmentally friendly liquid‑glass mixtures cured with esters for the manufacture of molds and rods in machine‑tool armature construction are recommended.
Comprehensive study of characteristic signs of defects detected during magnetic powder control at the final stage of production of seamless hot‑rolled pipes
Authors: Naumenko E. A. , Rozhkova O. V. , Kovaleva I. A.
Published: March 2023

Defects on the outer surface of seamless hot‑rolled steel pipes are formed both as a result of the defects’ transformation in the surface and macrostructure of the initial workpiece, and due to non‑compliance with the rolling technology. Timely detection of defects and elimination of the causes of their formation, allows you to get high‑quality products with high operational reliability. Detection of violations of technology, control of the technological process, carrying out metallographic studies allow classifying defects and establishing the nature and causes of their formation.

The article presents the results of a metallographic study of a defect on the outer surface of a hot‑rolled seamless pipe. The genetic and morphological signs of the defect were determined. Descriptions of the appearance of the defect, the microstructure in the defect zone are given. A comparative analysis of the defect detected during magnetic powder control with defects on experimental pipe blanks with artificial defects was carried out. Based on the data obtained, the causes of the defect formation are determined, its classification is given.
Thermal Conductivity of Rocks and Estimates of Heat Flow in the Lena–Anabar Interfluve (Siberian Platform)
Authors: Duchkov A.D. , Ayunov D.E. , Yan P.A. , Sivtsev A.I. , Sokolova L.S.
Published: March 2023

—We present results of measurements of the physical properties (thermal conductivity, porosity, permeability, and density) of 65 air-dry sedimentary-rock samples from the cores of six deep wells drilled in the Lena–Anabar interfluve. The rocks are compact low-porosity, almost impermeable siltstones, sandstones, and dolomites mainly of Paleozoic and Precambrian ages. Correlations of thermal conductivity with porosity and bulk density have been established. The available information about the thermal conductivity of rocks as well as the production thermograms recorded after drilling made it possible to estimate the geothermal gradient and heat flow (q) for the Ust’-Olenekskaya-2370, Charchykskaya-1, Khastakhskaya-930, and D’yappal’skaya-1 wells. The gradient was calculated from the temperature values at the lower boundary of the permafrost (0 ºC) and at the bottom-hole. The determined heat flow varies from 37 to 70 mW/m2. These q estimates are consistent with the available data on the distribution of heat flow in the north of the Siberian Platform. The proposed method for heat flow estimation is worthy of use in other northern regions of Siberia for obtaining more geothermal data.
Método de electrocoagulación para la reducción de niveles de efluentes de industrias lácteas
Authors:   , Falcón Llactas Marilyn Cristina
Published: March 2023

La industria láctea es la más importante del sector de alimentos en todo el mundo, debido a que producen alimentos indispensables, como la leche, yogurt, queso y mantequilla. Sin embargo, la gran demanda de productos, las actividades generadas en su proceso productivo, causan impactos negativos en el medio ambiente, contaminado la atmosfera, el agua y suelo. En base a esta problemática se plantea diversos tratamientos biológicos, físico-químico y electroquímico. El tratamiento biológico se puede dar de manera anaeróbica y aeróbica, muchos de ellos son buenos para eliminar algunos contaminantes de las aguas residuales, pero presentan en el proceso de biodegradación como limitación la producción lodos, en cambio el tratamiento físico- químico no es muy empleado y presenta la dificultad que los reactivos utilizados en este tratamiento para remover la demanda química de oxígeno son muy caros, por otro lado el tratamiento electroquímico, es un método que en los últimos años se está usando con mayor frecuencia, entre los cuales se encuentra la electrocoagulación. La electrocoagulación es un tratamiento muy eficiente y sencillo, frecuentemente empleado para tratar efluentes de las industrias lácteas, con óptimos resultados en corto plazo (demanda química de oxígeno en 58%, en un 100% la turbidez y en 95% los sólidos suspendidos volátiles)
El termómetro infrarrojo como alternativa de medición de temperatura corporal en vacas lecheras
Authors:   , Flores Desposorio Magaly Karina
Published: March 2023

La temperatura corporal es una constante fisiológica que nos ayuda a conocer el estado de salud de los animales, la cual puede verse afectada por condiciones ambientales tales como, la humedad relativa y la temperatura. El termómetro de mercurio es el instrumento más económico y de fácil uso, para medir la temperatura, sin embargo, el mercurio es un factor peligroso para la salud de las personas y el medio ambiente. Con el avance de la tecnología, se han desarrollado alternativas que sean precisas y confiables para el control de la temperatura corporal tales como los bolos inteligentes, microchips de identificación por radiofrecuencia, cámara termográfica, termómetro infrarrojo y sonda rectal, que disminuyen la mano de obra. Algunas de estas alternativas presentan desventajas con relación al costo del equipo, procesamientos complejos para estimar la temperatura corporal y que pueden ser afectados por el consumo de alimento o agua. El termómetro infrarrojo es un instrumento moderno que mide la temperatura a cierta distancia del animal disminuyendo el estrés, es de fácil uso para el productor y agiliza el monitoreo del rebaño, el objetivo de esta revisión bibliográfica es brindar información del termómetro infrarrojo como una opción para la medida de la temperatura corporal en ganado lechero describiendo sus ventajas, limitaciones y funcionamiento.
Análisis morfológico de troncos y aletas de cinco especies comerciales de tiburones (Chondrichthyes: Selachimorpha) desembarcados en el litoral peruano
Authors:   , Vitor Caceres Mónica Josefina
Published: March 2023

Uno de los retos para la conservación de los elasmobranquios consiste en su rápida identificación cuando estos llegan al puerto. Las condiciones en la que desembarcan estos organismos nos obligan a desarrollar herramientas para su identificación a partir de sus troncos y aletas. El presente trabajo tuvo como objetivo analizar morfológicamente los troncos y aletas de cinco especies comerciales de tiburones que son capturados por la pesquería artesanal en el Perú (Mustelus whitneyi, Mustelus mento, Triakis maculata, Sphyrna zygaena y Notorynchus cepedianus). A partir de ello, se realizaron descripciones de las especies, se elaboró una clave de identificación y se comparó las aletas de los juveniles mediante análisis multivariados (análisis de correspondencia y PERMANOVA). Los resultados del presente estudio muestran que los caracteres morfológicos de los troncos y aletas son efectivos para la identificación de tiburones frecuentemente comercializados en Perú. Los análisis estadísticos nos dicen que existen diferencias entra casi todas las especies con excepción de T. maculata y M. whitneyi, y M. mento con S. zygaena. Se observa también el alejamiento de N. cepedianus relacionados a los parámetros A2 y C2, y en el caso de M. mento al parámetro C1 (p<0.05 para la prueba de PERMANOVA) demostrando que los datos cuantitativos de las aletas tienen potencial para separar especies, pero con limitaciones. Los resultados del presente estudio sientan las bases para el desarrollo de guías de identificación de las especies de tiburones capturados incompletos con mayor frecuencia en el litoral peruano.
Correlación entre la prueba de la silla y dinamometría para evaluación de fuerza muscular en adultos mayores en el Hospital de la Fuerza Aérea del Perú
Authors:   , Cuadros Castro Sol Gianela , Jiménez Shentall VilmaIsabel
Published: March 2023

Introducción: La sarcopenia es una enfermedad de alta prevalencia en adultos mayores y está asociada a una gran carga de morbimortalidad, posicionándose como un problema de salud pública. Por lo que es necesaria una herramienta de bajo costo y fácil de realizar para la valoración del principal criterio de sarcopenia, la fuerza muscular. El objetivo es determinar la relación entre dinamometría de mano (método de elección) y prueba de la silla para evaluar fuerza muscular en adultos mayores del Hospital Central de la Fuerza Aérea del Perú. Materiales y métodos: Estudio analítico, retrospectivo, de corte transversal, análisis secundario de base de datos de proyecto de la Universidad San Martin de Porres efectuado en el año 2019, donde 44 adultos mayores fueron evaluados con prueba de la silla, dinamometría y medidas antropométricas. La correlación entre ambas pruebas se analizó con el test de Spearman. Resultados: Se encontró correlación entre dinamometría y prueba de la silla. Por cada 10 kg de fuerza en el dinamómetro, el tiempo de test de la silla disminuye en 2.9 segundos (SE = 0.09, p = 0.003), siendo esta correlación mayor en individuos mayores de 80 años y únicamente significativa en hombres. Discusión: La correlación fue respaldada y discutida por otros estudios. La menor capacidad de pruebas físicas en mujeres y las diferencias mecánicas y moleculares de fuerza entre hombres y mujeres fue hallada en distintos estudios. Se concluye que la prueba de la silla puede ser utilizada como herramienta de apoyo al diagnóstico precoz de sarcopenia.
Nurturing Technical Professional (TP) Competency Through Structured Development Program
Authors: Yusof Yushafidi Bin , Hadi Sriyanta , Mohd Isa Farah Irawati Binti
Published: March 2023

Technical Professional (TP) has been identified as one of the critical positions in PETRONAS that plays an important role in providing technical assurance in business deliveries. The intent of this paper is to describe the methodology and processes that been implemented in PETRONAS Upstream business to develop TP specifically in Operation and Engineering area. An inhouse program known as "Technical Specialist Program (TSP)" has been established as a solid capability development framework for internal talents in Upstream as a structure guidance for the talents to become TP undergoing the progression throughout the 3 levels of TP i.e. Staff, Principal and Custodian level.

The program was design focusing on acquiring and strengthening the competencies on technical-know-how, including commercial and leadership elements. The growth of internal talent vs. experience hire talent in TP positions have shown significant improvement post 3 years of TSP implementation which reflected in growth from 35% to 71.8% of TP positions been filled by the internal pool of talent. Subsequently, successor ratio of TP position vs internal talent is progressing gradually from 1:1 to 1:3 as per the company's aspiration.

The outcome of this paper will be beneficial and valuable to the industry practitioners for oil & gas industry specifically, as well as any related and relevant industry in developing technical talent for critical positions that requiring niche area of specialization. This paper summarizes the approach, best practices and lesson learnt based on the journey and experiences in developing TP through TSP.
Progesterone inhibits lipopolysaccharide-induced oxidative stress through Nrf2/Keap1 pathway in bovine endometrial epithelial cells
Authors: Cui Luying , Guo Jing , Zhang Qi , Zhang Jiaqi , Yuan Changning , Dong Junsheng , Liu Kangjun , Guo Long , Li Jun , Wang Heng , Li Jianji
Published: March 2023

Postpartum uterine infections can cause endometrial
inflammation and oxidative damage. Progesterone makes the animal
more susceptible to uterine infections, and has been proved to
inhibit uterine innate immunity and reduce tissue oxidative damage.
But the effect of progesterone on the oxidative damage in bovine
endometrium has not been reported. This study investigated the
effect and mechanism of progesterone on oxidative damage in primary
bovine endometrial epithelial cells induced by lipopolysaccharide
from Escherichia coli. As a result, lipopolysaccharide
induced cellular oxidative damage with increased content of
oxidative damage markers and decreased antioxidant enzyme
activities. Compared with the lipopolysaccharide group, there were
decreases in the levels of reactive oxygen species and
malondialdehyde, and increases in the activities of superoxide
dismutase and catalase, and total antioxidant capacity of cells
cotreated with progesterone and lipopolysaccharide. The potential
mechanism was explored by detecting the antioxidant gene expression
and the key protein levels of Nrf2/Keap1 pathway. The addition of
progesterone upregulated the relative mRNA abundance for
antioxidant genes and the key protein levels in Nrf2/Keap1 pathway,
and promoted NRF2 protein to enter the nucleus in cells stimulated
with lipopolysaccharide. The use of progesterone receptor
antagonist mifepristone reversed the antioxidative effect of
progesterone. In conclusion, progesterone inhibited
lipopolysaccharide-induced oxidative damage and activated
Nrf2/Keap1 pathway through progesterone receptor in primary bovine
endometrial epithelial cells.
Eye tracking technology to improve communication with intubated critical care patients: a randomized study
Authors: SZYMKOWICZ Emilie , BODET-CONTENTIN Laetitia , MARECHAL Yoann , EHRMANN Stephan
Published: March 2023

Background: Communication with patients undergoing mechanical ventilation in the intensive care unit represents a challenge. The aims of the study were (1) to describe communication difficulties related to mechanical ventilation as experienced by healthcare professionals and patients, and (2) to compare the use of a conventional low-tech communication board and a high-tech eye tracking technology-based device to improve communication effectiveness of mechanically ventilated patients in intensive care.
Methods: This prospective study consisted of a descriptive cross-sectional part describing the communication difficulties in the intensive care unit and an experimental randomized crossover part comparing the use of two technologically opposed augmentative and alternative communication interfaces. A mixed method approach was applied with a quantitative primary method and a qualitative complementary method. The numerical data were analyzed quantitatively using Mann-Whitney (ordinal variables) and chi-square (binary variables) nonparametric tests. The non-numerical data were analyzed qualitatively using thematization and categorization.
Results: A total of 101 healthcare professionals and 44 patients participated. Regarding the descriptive part, the communication difficulty analysis confirmed that mechanical ventilation constitutes a major problem in patient-caregiver communication. Regarding the quantitative experimental part, the treatment effects on transmitted messages quantity (2 median messages per exchange for the board versus 4 median messages per exchange for the eye tracking, p < 0.0001), success rate (80% for the board versus 100% for the eye tracking, p < 0.05) and patient satisfaction (68% negative satisfaction level for the board versus 100% positive satisfaction level for eye tracking, p < 0.0001) were significant. Regarding the qualitative experimental part, the communication content covered 8 themes for the board compared to 9 themes for the eye tracking and the use difficulties included 4 categories for the board as well as for the eye tracking.
Conclusion: The eye tracking device may further improve communication effectiveness of mechanically ventilated patients compared to the conventional communication board, both quantitatively and qualitatively.
Trial registration: Communication Strategies for Mechanically Ventilated Patients in Intensive Care Units, NCT05651984. Retrospectively registered on December 02, 2022 (https://clinicaltrials.gov/ct2/show/NCT05651984?term=NCT05651984&draw=2&rank=1).
Evaluation of AFP, AFP-L3%, and DCP in the diagnosis and after surgery prognosis of HCC
Authors: GU Lei , YAN Lei , BO Lin , SUI Xuemei
Published: March 2023

Background
To investigate the prognostic value of alpha-fetoprotein (AFP), ratio (AFP-L3%), and Des-γ-carboxyprothrombin (DCP) in the diagnosis and surgical resection of hepatocellular carcinoma (HCC).
Methods
Normal physical examiners were used as the control group, and the group of HCC patients admitted to our hospital was subdivided into HCC before treatment (HCC-BT) and HCC after excisional surgery (HCC-AS), based on the results of serum AFP, AFP-L3% and DCP assays. The diagnostic value of AFP, AFP-L3%, DCP, and their combinations in the diagnosis of HCC and prognosis of HCC after excisional surgery were compared and analyzed by applying the subject's receive operating characteristic (ROC) and area under the curve (AUC).
Results
There were 150 cases in the control group and 227 cases in the patient group, of which 89 and 138 cases were HCC-BT and HCC-AS, respectively (35 cases had recurred or new lesions were seen again), and the detection results of all indexes were statistically significant. ROC curve analysis showed that AFP, AFP-L3%, DCP, and their combinations showed a large difference in distinguishing HCC-BT from HCC-AS. AFP, AFP-L3%, and DCP had a high diagnostic value for screening HCC-BT, and DCP was slightly better than AFP and AFP-L3%, with a corresponding AUC of 0.74. When compared to normal controls, DCP, AFP, and AFP-L3% had no diagnostic significance for HCC-AS. Based on the temporary absence of recurrence after surgery as a control, DCP, AFP, and AFP-L3% again showed some prognostic value, and DCP was slightly better than AFP and AFP-L3%, with a corresponding AUC of 0.744.
Conclusion
In the diagnosis of HCC-BT, AFP, DCP and their combinations have high diagnostic values, and the combined test of the two has higher diagnostic value. In terms of HCC-AS prognosis, both AFP and DCP can be used as the main indicators of prognosis, but it is appropriate to establish new diagnostic criteria.
Enhanced Scalable Downlink Power Allocation for Centralized Scenarios in Cell-free Massive MIMO
Authors: Bora Gurmessa Meribo , Tulu Muluneh Mekonnen
Published: March 2023

Cell-free Massive MIMO is thought to be a potential technology to meet the high demands and growing users in B5G networks and towards 6G wireless networks. The cell-free technique benefits macro-diversity since the service APs are distributed over the whole network. Power allocation is crucial that lets us to enhances cell-edge users with the price of minimizing cell center power from APs. Even while many proposed heuristics schemes as well as Deep Neural Network (DNN) accurately allocate power for minimum user rates, they are ineffective in terms of prediction time complexity as the number of users grows from small to large. In this paper, a scalable DNN-based power allocation is proposed. The input for Neural Network is done by concatenating Large-scale fading and geographical user positions The simulation result shows that the proposed DNN can successfully allocate power almost resembles with Bisection Method and achieves 400 times faster prediction time and a 34.1% improvement in execution time.
Judgemental Analysis of Data and Prediction Using ANN
Authors: SARISA HEMANTH N S N , Singh Avjeet , sharma Govind , Mahajan Harshit
Published: March 2023

Everyday lot of posts are created in social media and several users make comments on the post. The comments can be positive or negative or moderate. Just by watching the post one cannot estimate whether the post is positive or not. Manual analysis of each comment of the post related document using Vader analysis takes a lot of time (approximately 5 to 6 hours- depending on number of comments). Also every post comments contains lots of redundant data which should be removed to get the exact sentiment of the post. We need to analyze the sentiment of the post within fraction of seconds by eliminating the redundant data. By using Machine Learning ANN Algorithms and applying them to social media post related datasets which contains a large number of comments. Initially dataset to be imported and at first stage data pre-processing is to be performed so as to remove the useless redundant information or data. The Algorithm uses ANN Data Dictionary which contains list of positive words and negative words to classify each comment in the dataset into positive or negative or moderate category. Along with this it will also gives the information about the sentiment of the post by visualizing the total positive, negative and moderate comments. Apart from this we are calculating the positive words and negative words number in each comment and also analyzing the sentiment of the post based on the keyword analysis. Graph and charts can be generated using Chart tool available in Visual Studio.
PM2.5 and chemical compositions in a naturally clean background air of Thailand's deep south, impact of transboundary haze from peatland fires and source apportionment by Principal Component Analysis
Authors: Chaisongkaew Phatsarakorn , Dejchanchaiwong Racha , Inerb Muanfun , Mahasakpan Napawan , Nim Nobchonnee , Samae Hisam , Intra Panich , Morris John , Ingviya Thammasin , Limna Thanathip , Tekasakul Perapong
Published: March 2023

Atmospheric particulate matter smaller than 2.5 micron (PM2.5) was evaluated at four sites in the lower southern part of Thailand during 2019-2020. Mass concentration and chemical bound-PM, including carbon composition e.g. organic carbon (OC) and elemental carbon (EC), polycyclic aromatic hydrocarbons (PAHs), and inorganic elements, were analyzed. The PM2.5 emission sources were identified by Principal Components Analysis. The average mass concentrations of PM2.5 in the normal period, which represents clean background air, from four sites was 3.5-5.1 µg/m3, whereas during the haze period, it rose to 5.4-13.5 µg/m3. The average OC/EC ratio in PM2.5 was 2.7-3.8 during the normal period, suggesting mixed sources of both vehicle combustion and biomass burning, whereas during strong haze period, the ratio rose to 3.3-5.2 indicating that biomass burning was a dominant source. This was consistent with the PAH diagnostic ratios. The average total PAHs and BaP-TEQ of PM2.5 during strong haze period were ~1.3-1.7 and ~1.2-1.9 times higher than those the normal period. The effects of external sources, especially the transboundary haze from peatland fires, are quantitatively pronounced because the background air in the study locations was generally clean. The PCA indicated that vehicle emission, local biomass burning, and secondary particles played a key role during normal period, whereas open biomass burning dominated during the haze phenomena. Backward trajectory simulations confirmed that the sources of PM during haze period was dominated by peatland fire in Sumatra, Indonesia due to south-west wind.
Reporting of Integrative Chinese and western medicine intervention in randomized controlled trials of ulcerative colitis: a scoping review
Authors: Zhang# Jialing , Deng# Jiashuai , Wang Nana , Wang Ping , Li Ji , Wang Yunhai , Cui Wanting , Liang Feng , Chen Peijin , Wang Juan , Han Fei , Chan Chungpong , Lyu Aiping , Bian* Zhaoxiang , Zhang* Xuan
Published: March 2023

Background
Integrative Chinese and western medicine (ICWM) is commonly used for the treatment of ulcerative colitis (UC) in clinical practice. However, it is unclear whether the details of ICWM interventions, such as selection rationale, implement design and potential interactions, were adequately reported. Therefore, this study aimed to assess the quality of reporting in the ICWM interventional randomized controlled trials (RCTs) of UC, and to identify the common problems if any.
Methods
Through a search of 10 international electronic databases, we identified RCTs of UC with ICWM interventions published in English or Chinese up to 23 February 2022. The general characteristics of included studies were described. The quality of reporting was assessed according to three checklists, including the CONSORT (Consolidated Standards of Reporting Trials) with 36 items (except for one item 1b about abstract), the CONSORT for Abstracts (17 items), and a self-designed ICWM-related checklist (27 items covering design rationale, intervention details, outcome assessments and analysis). The reporting scores of RCTs published before and after 2010 were compared.
Results
A total of 1,335 eligible RCTs were included. For the reporting compliance, the median score (interquartile ranges) of the CONSORT (72 score in total), the CONSORT for Abstract (34 score), and ICWM-related (54 score) items was 29 (26–33), 18 (14–21), and 13 (11–15), respectively. In addition, more than 50% items were evaluated as poor quality (reporting rate < 50%) among each checklist. Time period comparisons showed that reporting quality of included publications improved signifcantly after the CONSORT 2010 issued (P < 0.01).
Conclusion
Although CONSORT appears to have enhanced the reporting of RCTs in UC, the quality of ICWM specifics is variable and in need of improvement. Reporting guideline of the ICWM recommendations should be developed thus to improve their quality.
Chimpanzees engage in competitive altruism in a triadic Ultimatum Game
Authors: Sanchez-Amaro Alejandro , Maurits Luke , Haun Daniel
Published: March 2023

Partner choice promotes competition among individuals to be selected as a cooperative partner, a phenomenon referred to as competitive altruism. Our study explores chimpanzees' competitive altruism in a triadic Ultimatum Game where two proposers can send offers to a responder who can only accept one offer. Chimpanzees engaged in competitive altruism by sending higher offers on final vs initial trials in the triadic condition and not in a dyadic control condition. Chimpanzees also increased their offers after being rejected in the triadic condition. Finally, and most notably, second proposers strategically tried to outcompete first proposers by offering more before the responder could choose which offer to accept. Our results suggest chimpanzees consider how third-party interactions affect them and apply strategies to maximize their chances of being selected as cooperative partners.