bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of cooling methods and key parameters on the cooling performance of oil-cooling motor with hairpin windings
Authors: Liu Y.X. , Wu H. , Zhang J. , Xu P.X. , Chen S. , He X.H. , Sun Z.D.
Published: June 2024

Based on the electromagnetic thermal coupling analysis method, the cooling performance of different motor cooling models and the influence of key parameters of the cooling system on the cooling effect of the motor are investigated. First, the losses of various parts of the permanent magnet synchronous motors are obtained through electromagnetic calculations; the analysis results show that the stator core loss, winding copper loss, and eddy current loss of permanent magnets exceed 95% of the total loss of the motor. Second, the cooling performance of the three motor was compared and analyzed. The axial housing liquid cooling and oil spray cooling (Model B) has a better cooling performance and a higher cooling efficiency. Compared with the other two motor models, Model B can reduce the time to reach steady-state temperature by about 81.8%.Then the effects of coolant volume flow rate, coolant inlet temperature, and ambient temperature on the cooling effect of the motor are investi-gated. The results show that within a certain range, the rate of coolant inlet temperature change is approximately proportional to the internal temperature rise of the motor. The oil spray cooling system of Model B is less affected by ambient temperature and can be used for motor cooling in complex environments. The results of this study can provide a useful guidance for the design of the cooling system and the selection of coolant volume flow rate for oil-cooling motor with hairpin windings.
Fixed Point and Best Proximity Point Results in PIV-S-Metric Spaces
Authors: Asim Mohammad , Imdad Mohammad
Published: June 2024

This paper presents the concept of a partial idempotent valued S-metric space, abbreviated as PIV-S-metric space, as a generalization of both the PIV-metric space and S-metric space. The study utilizes this new frame-work to establish a fixed point theorem and a best proximity point theorem. Additionally, the paper proves the existence and uniqueness of the best proximity point within this context. Several illustrative examples are provided to demonstrate the practical applications of the main findings.
Modulation of oxidative stress biomarkers and lysosomal functioning in gills and liver of rainbow trout (Oncorhynchus mykiss Walbaum) fed a diet supplemented with yeast β-glucans
Authors: Kurhaluk Natalia , Grudniewska Joanna , Tkaczenko Halina
Published: June 2024

The present study was performed to investigate the effects of dietary yeast β-1,3/1,6-D-glucans after 15-, 30-, and 45-day feeding periods on the development of oxidative stress, antioxidant defenses, and lysosomal functioning in gills and hepatic tissue of rainbow trout, Oncorhynchus mykiss (Walbaum). The fish were fed a control diet or an experimental diet containing the supplement Yestimun® at a dose of 1% in the basal feed (with 85% content of β-1,3/1,6-glucans). On days 15, 30, and 45 of the experiment, the following were analyzed in gills and hepatic tissue: oxidative stress biomarkers (2-thiobarbituric-acid-reacting substances [TBARS]); aldehydic and ketonic derivatives of oxidatively modified proteins; activities of superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), and glutathione peroxidase (GPx); total antioxidant capacity (TAC); activities of lysosomal enzymes (alanyl aminopeptidase [AAP], leucyl aminopeptidase [LAP], acid phosphatase [AcP], β-N-acetylglucosaminidase [NAG]). The dietary β-glucans stimulated CAT, GPx, LAP, and AcP activities in gills and hepatic tissue compared to the control group; however, the opposite trend was observed in TAC levels in gills on days 30 and 45. The present study suggests that β-glucans can enhance immune response, antioxidant capacity, and lysosomal functioning effectively in rainbow trout.
Diagnosis of the Managerial Potential of the Public Institution
Authors: Goloşie Grațian-Daniel , Bogluţ Geanina-Ioana
Published: June 2024

The article explores the detailed analysis of the public institution, focusing on the evaluation of the organizational structure and decision-making processes, alongside the analysis of the organizational culture, ethics and human resources management. Financial aspects, communication and public relations, performance evaluation and monitoring of policy implementation are also covered. The comprehensive analysis identifies potential improvement points for more efficient and transparent governance within public institutions.
Sustainability Trends and Dynamics: An Integrative Approach to Economic, Social, and Environmental Perspectives
Authors: Gorski Andra-Teodora , Ranf Elena-Diana
Published: June 2024

Currently, there is a growing interest in sustainability and sustainable development and their implications for organisations and management around the world. The aim of this paper is to identify areas of interest and highlight key aspects of sustainability trends and dynamics, which were identified through searches on Google Trends and Web of Science (WoS). Analysis of the categories in WOS reveals the multidisciplinary nature of sustainability research, with a predominant focus on environmental challenges. There is also identified significant attention for technology and engineering, as well as notable research in management, economics, and business. In the context of sustainability concerns, organizations should not only adapt but also transform to address pressing issues. It is imperative that every organization integrates sustainability at its core. This requires aligning values, strategy, goals, objectives, key performance indicators (KPIs), targets, and initiatives/projects with sustainability. Achieving this is a complex process that also requires changes at the macro level. Regulations and governments play a central role in promoting corporate responsibility and accountability for sustainability initiatives. Moreover, education for sustainable development (ESD) can be a powerful tool in shaping behaviour and fostering a mindset and a culture of sustainability.
The Possibility of the Contracting Authority to Establish Qualification, Selection, and Award Criteria for the Award of Public Procurement Contracts
Authors: Popa Ioan-Gabriel
Published: June 2024

The process of public assurance is a sequence of stages, following which you can obtain the right to use it, the service or the work, as a result of the award of a public procurement contract. The contracting authority carries out in the framework of the public insurance process various ways of awarding public service contracts in order to award contracts for products, services or works. On choosing the course of the process to make public, the contracting authority uses those qualification and/or selection criteria as well as award criteria, at different moments of the process. Most of the time in the development of the ways of assigning the specifics of the domain and the public ones, even specialists “impede” the understanding of three categories of previously mentioned criteria, and that is why it is necessary, on the one hand, to clarify the concepts of qualification criteria and/or of selection. and award criteria, and on the other hand it is necessary to identify the moment in which they are applied but also the way in which they are applied in this way depending on the method of award assumed by the contracting authority.
The Impact of Physical Qualities on the Training and Development of the Specific Training of the Fighter Operating in Extreme Conditions
Authors: Stănciulescu Robert
Published: June 2024

The war carried out in extreme conditions requires exceptional training involving a degree of difficulty far above most situations encountered on the battlefield, because, on the one hand, the fighter performs missions in conditions totally different from those of a classic warfare and, on the other on the other hand, he must face special physical and mental demands. In order to be able to meet all the demands imposed by the hardness and complexity of these areas of action, it is necessary for the fighters who act in such environments to have a versatile training. Along with the intellectual, technical, tactical and psychological training, the physical component of the training plays a basic role, which in my opinion constitutes a pivot of all the other components of the training. In the paper, along with the demands and rigors of extreme environments, there are presented a series of benefits of an exceptional physical training which, by ensuring a solid motor capacity, also ensures a part of the mental preparation for the fight, elements that are the basis of the training and consolidation of specific combat aptitudes and skills.
Scoring: Failure Risk Management Tool for SMEs in Algeria
Authors: Tarhlissia Lamine
Published: June 2024

Algerian public banks need to implement credit risk management techniques tailored to the specific characteristics of SMEs to prevent the deterioration of the banks’ solvency due to the degradation of the quality of their SME portfolios. In this regard, our main objective is to highlight the interest that credit risk management will have within the People’s Credit of Algeria by developing a Credit Scoring model based on the logistic regression technique, using a sample of 226 SMEs. The study results demonstrate the importance of the logistic regression model in classifying companies and its predictive ability for default, with a good classification rate of 91.2%.
The Quantity Theory of Money, Quantitative Easing and the Missing Inflation Phenomenon
Authors: Moosa Imad A. , Al-Saad Khalid , Khatatbeh Ibrahim N.
Published: June 2024

Several explanations have been put forward for the observation that massive inflation has not appeared as a result of the explosive monetary growth generated by quantitative easing that was in 2008. Several plausible explanations have been put forward for this observation, but none of them can explain the huge gap between monetary inflation and price inflation. The alternative explanation presented in this paper is that monetary inflation is more reflected in stock prices than the CPI. It is demonstrated that by adjusting the CPI to reflect changes in stock prices, the gap between the trends of the money supply the CPI can be almost eliminated.
New Media and Their Implications for the Press Law
Authors: Syahriar Irman , Bazarah Jamil , Khairunnisah  , P Dina Paramitha Hefni
Published: June 2024

Purpose: This study aims to explore the impact of new media on the press law, highlighting the various challenges and opportunities that arise with their advent.
 
Theoretical Framework: The research is grounded in the intersection of communication theories and legal frameworks, examining how technological advancements in media necessitate updates to existing laws and ethical standards.
 
Method: The study employs a qualitative analysis of current media laws and ethical guidelines, alongside case studies of new media usage and its regulation. Data is collected from legal documents, academic literature, and interviews with experts in media law and ethics.
 
Result: The findings indicate that new media introduces both positive and negative effects on the implementation and enforcement of press laws. While new media enhances freedom of expression and information dissemination, it also poses significant challenges in terms of regulation and ethical conduct. The study identifies gaps in current legal frameworks that fail to address the unique characteristics of new media.
 
Conclusion: The research concludes that there is a critical need for updated legal and ethical guidelines to effectively manage the implications of new media on the press. The existing laws are insufficient to handle the complexities introduced by new media, necessitating a reevaluation and adaptation of legal structures.
 
Originality/Value: This study contributes to the ongoing discourse on media law by providing a comprehensive analysis of how new media impacts legal and ethical standards in the press. It underscores the necessity for evolving legal frameworks to keep pace with technological advancements, ensuring that the principles of justice and ethical conduct are maintained in the digital age.
Factors Affecting Consumer Behaviour Towards the Consumption of Foreign FMCG Products
Authors: Mohan Abirami , Ganesh Raja Rajeswari , Jayakrishnan Balaji
Published: June 2024

Purpose: Understanding how consumers feel about buying Fast-Moving Consumer Goods (FMCG) from other countries is an important topic for researchers around the world. The goal of this investigation is to identify the elements determining consumer preferences.
 
Methodology: This study uses analysis of variance (ANOVA) to determine the relevance of the factors determining customers' preferences towards foreign FMCG items. In order to investigate the effects of several variables, including cultural considerations (F1), cost considerations (F2), societal consequences (F3), goods specifications (F4), self-related characteristics (F5) and emotional determinants (F6), the study employs information gathered from a sample of 250 customers. This study determines which variables possess the biggest effects on consumer behaviour by using ANOVA. The relative significance of these factors in influencing customer preferences can be determined through a systematic examination of the variation in these components and their corresponding stages, made possible by ANOVA.
 
Findings: It was discovered that although F2 had no discernible impact on the decision to buy, factors such F1, F3, F4, F5 and F6 had a beneficial effect on consumer behaviour. The most important variable affecting how FMCG product consumers behaved was factor F1.
Right Aortic Arch with Megaesophagus in a Jack Russel Dog and Diagnosis with Contrast Fluoroscopy
Authors: Sirin Yusuf , Şirin Muhammed Yusuf , Çetin Mehmet Nur
Published: June 2024

The material of this case report was a 4-month-old Jack Russel female dog brought to Burdur Mehmet Akif Ersoy University Veterinary Faculty Animal Hospital with the complaint of vomiting. Anamnesis revealed that the patient had chronic vomiting, cough, and respiratory distress following food intake. As a result of examinations, it was determined that the patient had a congenital right aortic arch-type vascular ring anomaly and related megaesophagus. Treatment consisted of a surgical procedure followed by medical therapy. This case report demonstrated that fluoroscopy-guided contrast-enhanced angiography can be used to diagnose vascular ring anomaly.
RANCANG BANGUN SANDING MACHINE OTOMATIS MENGGUNAKAN CONVEYOR DENGAN PROXIMITY SENSOR
Authors: Dani Irfan , Herlina Amaliah , Safrudin
Published: June 2024

These sanding machines generally operate on a limited scale or on a modern scale. In order for the newly made wood sanding machine to be more effective in the entire production process, it is necessary to have a mode of transportation used to transport raw materials, especially wood. Literature studies, field research, and the design process are the methods used. The results of the research that has been done, transporting a wood sanding machine with a 24Volt DC engine drive system shows that the difference in speed/Rpm can be changed by using a dc dimer. From a 12 Volt DC voltage, you get a speed of 38 Rpm, a 17 Volt DC voltage gets a speed of 43 Rpm, while a 21 Volt DC voltage gets a speed of 80 Rpm. DC motors as drives, belt regulators, and conveyor belts. And also use a tachometer to calculate the speed/Rpm on the conveyor and sanding drum. The sensor in this system functions as an automatic assistance system that will operate the sanding machine and as a proximity sensor to identify objects that pass through the sensor. The detection range of the proximity sensor is 30 cm, which makes it possible to detect objects passing through the sensor.
ABSTRAK:
ABSTRAK: Mesin amplas  ini umumnya bergerak dalam skala terbatas maupun dalam skala modern. Agar mesin pengamplas kayu baru yang dibuat dapat lebih efektif dalam seluruh proses produksinya, diperlukan adanya moda transportasi yang digunakan untuk mengangkut bahan baku khususnya kayu. Studi literatur, penelitian lapangan, dan proses desain adalah metode yang digunakan.Hasil dari penelitian yang telah dilakukan, pengangkutan pada mesin amplas kayu dengan sistem penggerak mesin 24Volt DC menunjukkan bahwa perbedaan kecepatan/Rpm dapat diubah dengan menggunakan dimer dc. Dari tegangan DC 12 Volt mendapatkan hasil kecepatan 38 Rpm, Tegangan DC 17 Volt mendapatkan hasil kecepatan 43 Rpm, Sedangkan tegangan DC 21 Volt mendapatkan hasil kecepatan 80 Rpm. Motor DC sebagai penggerak, pengatur belt, dan belt konveyor. Dan juga menggunakan tachometer untuk menghitung kecepatan/Rpm pada koveyor dan drum amplas. Sensor pada sistem ini berfungsi sebagai sistem bantuan otomatis yang akan mengoperasikan mesin pengamplasan dan sebagai sensor proximity untuk mengidentifikasi benda yang melewati sensor. Jangkauan deteksi sensor jarak adalah 30 cm, yang memungkinkan untuk mendeteksi objek yang melewati sensor
PEMANTAUAN TEMPERATUR PADA INKUBATOR EUBLEPHARIS MACULARIUS (LEOPARD GECKO) BERBASIS ZIGBEE
Authors: Wulandari Meirista , Adrianto Christopher Calvin , Hugeng  , Suraidi
Published: June 2024

One type of reptile that is interesting to be explored is Eublepharis Macularius or better known as the Leopard Gecko. Leopard Gecko is a reptile class animal that is tame and has a unique pattern on the outer skin of its body. The size of this animal is not too big but also not too small, around 24 – 27 cm. The breeding of this animal is an interesting thing to research because the sex of the Leopard Gecko can be influenced by regulating the temperature of the egg incubator. Engineering Leopard Gecko incubators regarding temperature is one of the interesting implementations in the field of electrical engineering to enliven the Leopard Gecko industry. Even simple plastic containers can be engineered for Xbee wireless monitoring and controlling Leopard Gecko incubator temperatures. By controlling the temperature in the incubator, the sex of the hatched Leopard Gecko eggs can be monitored. Some electronic equipment that can be used is temperature sensors, microcontrollers, Xbee, relays, incandescent lamps and monitors. With this series of electronic equipment, the temperature in the incubator can be monitored and controlled wirelessly in the temperature range of 32.00oC - 32.50oC.
 
ABSTRAK 
Salah satu hewan jenis reptil yang sedang berkembang saat ini adalah Eublepharis Macularius atau yang lebih dikenal dengan Leopard Gecko. Leopard Gecko merupakan hewan berkelas reptil yang jinak dan mempunyai corak yang unik pada kulit luar tubuhnya. Ukuran hewan ini juga tidak terlalu besar namun juga tidak terlalu kecil, sekitar 24 – 27 cm. Perkembangbiakan hewan ini merupakan salah satu hal yang menarik untuk diteliti karena jenis kelamin dari Leopard Gecko dapat dipengaruhi melalui pengaturan temperatur dari inkubator telurnya. Rekayasa inkubator Leopard Gecko terhadap temperatur merupakan salah satu implementas bidang teknik elektro yang menarik untuk menyemarakan perindustrian Leopard Gecko. Kontainer plastik sederhana pun dapat direkayasa untuk pemantauan dan pengendalian temperatur inkubator Leopard Gecko secara nirkabel Xbee. Dengan dikendalikannya temperatur pada inkubator, jenis kelamin hasil penetasan telur Leopard Gecko dapat dipantau. Beberapa peralatan elektronika yang dapat digunakan adalah seperti sensor suhu, mikrokontroler, ZigBee, relay, lampu pijar, dan monitor. Dengan rangkaian peralatan elektronika tersebut, temperatur pada inkubator dapat dipantau dan dikendalikan secara nirkabel pada rentang suhu 32,00oC - 32,50oC.
Tecendo memórias
Authors: De Fátima Guimarães Maria , Alexandre Hayakawa Thiago , Aparecida de Souza Cleonice
Published: June 2024

O artigo apresenta os "Encontros Lugares de Memória" organizados em parceria pelo Centro de Documentação Apoio à Pesquisa em História da Educação (CDAPH) e o Sistema de Bibliotecas (SIBUSF), ambos da Universidade São Francisco, e a Secretaria Municipal de Cultura de Bragança Paulista. Os Encontros tiveram por objetivo destacar a importância dos acervos locais para a história e a educação. Os eventos trataram das diferentes unidades informacionais: arquivos, museus, centros de documentação e bibliotecas existentes no município, bem como das potencialidades da difusão cultural, ressaltando-se a importância do diálogo contínuo e do envolvimento da comunidade na preservação da memória e promoção da educação patrimonial. Salientou-se que o formato híbrido do II Encontro demonstrou a capacidade de envolver um público diversificado e estimular discussões significativas sobre esses temas.
Pemanfaatan Aplikasi KABI untuk Pembelajaran Materi Kisah Nabi di TPA Masjid Al-Ikhlas Karangnongko, Klaten
Authors: Salsabila Unik Hanifah , Aulia Annisa , Rosmiati Indah
Published: June 2024

Minat belajar siswa dipengaruhi oleh proses pembelajaran yang menarik. Penggunaan teknologi dalam pembelajaran dapat menunjang motivasi belajar pada siswa. Tujuan dari penelitian ini adalah untuk mengetahui pemanfaatan penggunaan aplikasi KABI: Kisah Nabi dan Buku Islami pada siswa TPA Masjid Al-Ikhlas Karangnongko, Klaten. Metode penelitian yang digunakan dalam penelitian ini adalah kualitatif dengan pendekatan deskriptif. Penelitian ini berbasis observasi lapangan, proses pengumpulan data yang digunakan adalah observasi, wawancara , dan dokumentasi. Aplikasi KABI adalah salah satu media interaktif yang menyajikan audio visual yang menarik dengan animasi yang dapat menarik siswa untuk belajar. Penyampaian materi mengenai kisah nabi dan rasul di TPA Masjid Al-Ikhlas dapat dilakukan dengan mudah karena aplikasi ini dapat digunakan di smartphone sehingga siswa dapat menggunakannya dimana saja.
Design Cooling Load on Economy Passenger Train Type K3-438 using Thermodynamic Physics
Authors: Karlina Diyajeng Luluk , Mufit Choirul
Published: June 2024

Abstract— Factors that influence comfort on trains are thermal comfort factors. Thermal comfort is a thermal interaction between humans and their surroundings that satisfies the human mind. The principle of thermal comfort itself is related to the surrounding body temperature. Because if the human body temperature and the environment have a significant temperature difference, discomfort will occur. Research aims to design an effective air conditioning system to produce a better air supply so that it can overcome the problem of thermal comfort in trains. The first methodology for this research was collecting primary and secondary data. Primary data includes data on train size, construction, type of equipment, and number of passengers. While secondary data is data on design conditions. To determine the value of the cooling load, it is necessary to analyze the heat load in the train which includes sensible heat load and latent heat load. The results of this research obtained a total sensible heat value of 86371.19 Btu/hr. And the total latent heat is 73855.839 Btu/hr. Based on the results of research that has been carried out, it can be Conclusions were drawn from the calculation of the cooling load on the Type K3-438 Passenger Train with a capacity of 94 passengers. It was concluded that the minimum cooling load required was 40412.48 kcal/hr.
 
Keywords: Cooling Load, Thermal Comfort, Passenger Train, Thermodynamic Physics
AGAMA DAN FILSAFAT ANTARA TEOLOGIS DAN FILOSOFIS
Authors: Diputra Gede Bagus Wira
Published: June 2024

Pada intinya setiap manusia pasti memiliki keinginan untuk mengetahui kebenaran tentang keberadaan Tuhan, tetapi untuk menunjukan bukti tersebut tidaklah mudah, karena hal tersebut berbentuk abstrak. Meskipun mereka ingin mengungkapkan pengalamannya saat mencari Tuhan, namun tetap sangat sulit baginya untuk mengungkapkan Tuhan dengan kata-kata. Akibat konsep ketuhanan yang berbeda-beda hal ini membuat banyak gagasan tentang sosok Tuhan. Tuhan merupakan alam semesta itu sendiri dan memiliki sifat abstrak. Untuk memahami yang abstrak perlu kita memahami hakikat tentang Tuhan melalui memahami hakikat kelahiran sang diri. Dalam ilmu filsafat khususnya filsafat agama telah mengajarkan dan memperkenalkan Tuhan kepada manusia melalui logika berpikir kritis yang kemudian kebenaran yang didapati sesuai dengan apa yang tertulis pada kitab agama yang pada akhirnya hal tersebut dapat meningkatkan kepercayaan dan keyakinannya kepada sang pencipta. Melalui penelitian ini akan menekankan pada ilmu filsafat sebagai dasar pengkajian yang mendalam mengenai eksistensi Tuhan didalam kehidupan ini.
Albañil
Authors: Rubio Hernández Alfonso
Published: June 2024

Ajustes emocionales desde la búsqueda de afinidades y comportamientos contradictorios; una lógica de estados, de modos de ser y situaciones que intenta descifrarse y hacerse comprensible en cada uno de los sentidos que componen los materiales de Albañil, el oficio de un padre que, en la resurrección que le concede el poeta, sigue construyendo figuraciones afectivas para dar forma a un obra que reordena instantes de una vida que, como símbolo de un pasado colectivo, estuvo condenada a empujar eternamente la dureza y dignidad de su destino.
الكتابات القديمة التي ظهرت قبل الكتابة العربية وأثرها في الخط العربي الخط الثمودي (أُنموذجًا)
Authors: كاظم ماهر صالح
Published: June 2024

تناولت هذه الدراسة التعريف بالكتابة الثمودية والتسميات الأخرى التي أُطلِقت عليها عبر العصور والأزمنة الغابرة وبيان سبب تسمية هذه الكتابة بهذا الاسم والتعريف بهؤلاء الأقوام وعلاقة هذا النوع من الخط بالخط العربي وأوجه الشبه بينهما من جهة الحروف وكيفية كتابة تلك الحروف وعددها وكانت أغلب النقوش التي عثر عليها الباحثون تدل دلالة بينةٍ على وجود شبه غير يسير بين هذا النوع من الكتابة والكتابة العربية.
Differential semantics of words according to environmental theory
Authors: Mohammed Dashti Bahjat
Published: June 2024

The research entitled (meaning of word differences according to environmental theory) is an attempt to present and show the words of language, which have different meanings according to different environments They are vague because they belong to more than one semantic field, but by including them in morphology and syntax, which are two environments of language, their meaning becomes clear. Vague objects exist at different levels of language (Environmental theory plays an important role in explaining blindness, especially morphological blindness, so the environment helps to achieve the most appropriate purpose.
Mechanical Properties of Modified Metakaolin-Based Geopolymer Concrete Containing Tires Rubber Waste and Reinforced with Recycled Steel Fibers
Authors: Alobeidy Nazar F. , Khalil Wasan I.
Published: June 2024

Geopolymer concrete has superior physical properties and a positive environmental impact compared to conventional concrete. Waste management is one of the most essential issues. Regarding sustainable raw material management, recycling the industrial waste as much as possible and developing new technologies that reduce industrial waste landfills and generate materials with new added value is essential. Every year, people throw away about 17 million tons of tires that cannot be used again. This trash is a significant environmental threat, so recovering tires is essential. The results showed that replacing 10% of the crumbed rubber wastes with natural coarse aggregate decreased the workability, compressive strength, splitting tensile strength, flexural strength, and direct tensile strength by 5.5%, 38.6%, 10.6%, 6.25%, and 6.67%, respectively with respect to a reference without wastes. At the same time, adding 0.125% and 0.25% recycled steel fibers increased the workability reduction by 2.9% and 5.9% and improved mechanical properties, including compressive strength, splitting tensile strength, direct tensile strength, and flexural strength by 43.3%, 15.9%, 26.4%, 14.2%, 90.4%, 42.4%, 32.1%, and 17.9%, respectively, compared to a reference mixture containing 10% crumbed rubber wastes. The results also showed an increase in the total energy by 23.2%, 142.4%, and 312.1% when replacing 10% of the natural coarse aggregate with crumbed rubber wastes, including 0.125 and 0.25% recycled steel fibers, respectively. When these wastes were introduced together or individually, Brittleness of geopolymer concrete changed to ductile.
Bilateral Avascular Necrosis of the Femoral Heads
Authors: Yamashiro Megan , Kelch Kristi Greene , Ross Michael
Published: June 2024

A 24-year-old man was referred to a physical therapist with a 14-year history of nontraumatic right lateral hip pain that had worsened over the past year. After 6 sessions over a 3-month period, the patient's pain was unchanged, functional improvement was minimal, and he couldn1t tolerate hip-strengthening exercises. Given the lack of improvement, he was referred back to his physician. Radiographs and subsequent magnetic resonance imaging revealed avascular necrosis of bilateral femoral heads. JOSPT Cases 2021;1(4):231–232. doi:10.2519/josptcases.2021.10009
Ruling in Cervical Myelopathy by Diagnostic Cluster
Authors: Collier David , LaBranche Emily , Mabry Lance M.
Published: June 2024

A 61-year-old, right hand-dominant cook was referred to physical therapy by his primary care provider after experiencing gradually progressive, bilateral arm numbness and tingling. Due to concern for cervical myelopathy, the physical therapist requested magnetic resonance imaging (MRI). The MRI demonstrated congenital central canal stenosis with spondylotic disc disease, resulting in spinal cord compression and myelomalacia. JOSPT Cases 2021;1(2):92–93. doi:10.2519/josptcases.2021.10049
Invasive Chest Wall Tumor in an Active-Duty Marine
Authors: Roth Julia , Clifton Alexa , Smith Ryan W.
Published: June 2024

A 23-year-old active-duty Marine presented to a physical therapy clinic with a 3-month history of right-side anterior chest pain without specific injury. Initial radiographs taken by his primary care physician were noncontributory and were followed by a diagnostic ultrasound exam, which showed a partial-thickness tear of the pectoralis major. Orthopaedic surgeon evaluation 1 month later noted differential diagnoses of a partial pectoralis tear and a soft tissue mass. Magnetic resonance imaging (MRI) was ordered to differentiate the lesion but was delayed 1 month. As a result, the diagnosis remained a partial right pectoralis tear until the MRI was completed, revealing an invasive tumor along the right chest wall. JOSPT Cases 2021;1(2):107–108. doi:10.2519/josptcases.2021.10148
Cuboid Avulsion Fracture Following Ankle Inversion Injury
Authors: McCallister Erin
Published: June 2024

A 27-year-old man reported to a physical therapist via direct access with severe left lateral midfoot pain during weight bearing. Due to joint-line tenderness, severe pain with weight bearing, and lack of findings consistent with his mechanism of injury, the patient was referred to an orthopaedic physician with a recommendation for imaging of the foot. Radiographs revealed an avulsion fracture of the cuboid.

JOSPT Cases 2021;1(3):174–175. doi:10.2519/josptcases.2021.10195
The Relationship Between Changes in Movement and Changes in Low Back Pain: A Systematic Review of Single-Case Designs
Authors: Wernli Kevin , Tan Jay-Shian , O'Sullivan Peter , Smith Anne , Campbell Amity , Kent Peter
Published: June 2024

Objective

To investigate how often changes in an individual's volitional spinal movement related to changes in low back pain and activity limitation in studies that accommodated individual heterogeneity.

Design

Etiology systematic review.

Literature Search

MEDLINE, Embase, CINAHL, and AMED were searched from inception to January 2020.

Study Selection Criteria

This study included peer-reviewed single-case design (including case series) articles that reported objectively measured volitional spinal movement and low back pain or activity limitation, before and after nonsurgical or nonpharmacological intervention.

Data Synthesis

We summarized the frequency with which changes in movement related to changes in pain or activity limitation. For each relationship found, we synthesized the type of movement change that related to improved pain or activity limitation.

Results

Twenty-three suitable studies (n = 33 participants) of low overall quality were identified. A relationship between changes in movement and changes in pain or activity limitation was identified 72% of the time (57.5 of the 80 times investigated). In the presence of a relationship, improved pain or activity limitation was consistently (55.65 of the 57.5 relationships, 97%) related to increased spinal movement range, velocity, or flexion-relaxation (reduced muscle activity at full flexion).

Conclusion

Among study designs that can accommodate the heterogeneity of low back pain by individualizing the intervention and the assessment of movement, a relationship between changes in movement and changes in pain or activity limitation was frequently observed. JOSPT Cases 2021;1(4):199–219. doi:10.2519/josptcases.2021.10231
Pituitary Adenoma Presenting With Bilateral Calcaneal Stress Fracture: A Case Report
Authors: Bosch Saskia , Bogaerts Stijn
Published: June 2024

Background

Stress fractures are common in athletes. Cushing's disease is a rare yet serious etiology of poor bone mineralization and stress fracture.

Case Presentation

A 20-year-old male long-distance runner presented with right-side ankle pain. Magnetic resonance imaging (MRI) found evidence of a stress fracture of the calcaneus. A bone mineral density measurement revealed a T score indicative of osteoporosis. Blood tests and MRI of the adenohypophysis were performed.

Outcome and Follow-Up

A diagnosis of an adrenocorticotropic hormone–producing tumor of the adenohypophysis was made.

Discussion

This is the first report of a case of Cushing's disease presenting with stress fractures in an athlete. In this article, we outline the clinical picture, differential diagnosis for poor bone quality, and diagnosis and treatment of Cushing's disease, a rare yet important cause of stress fractures in athletes. JOSPT Cases 2021;1(2):109–111. doi:10.2519/josptcases.2021.10292
When to Refer Patients With Cervicogenic Headache for an Occipital Nerve Corticosteroid Injection: A Multiple-Case Series
Authors: Demont Anthony , Lafrance Simon , Recoque Valentine , Mawet Jérôme
Published: June 2024

Objectives

To evaluate the impact of physical therapist assessment in patients with cervicogenic headache (CGH) to identify who may benefit from occipital nerve corticosteroid injections (ONCIs).

Design

Retrospective multiple-case series.

Methods

Based on the physical therapist assessment, patients with C2 nerve root involvement were referred to a neurologist for ONCI. Median pain intensity per episode of CGH was measured with a numeric pain-rating scale at baseline, after ONCI, and at 3 weeks.

Results

Ten of the 22 patients were referred to the neurologist to receive ONCIs (mean ± SD, 2.1 ± 1.0 injections). Median headache intensity per episode was reported to be 8/10 (interquartile range [IQR], 8-10) at baseline, 6/10 (IQR, 3-6.25) immediately postintervention, and 5/10 (IQR, 2.25-6) at the 3-week follow-up.

Conclusion

Identification of patients who had CGH from the C2 nerve root and were referred for 1 or more ONCIs by the physical therapist may be associated with a significant pain reduction. JOSPT Cases 2021;1(3):135–142. doi:10.2519/josptcases.2021.10303
Diagnosis of a Spinal Compression Fracture With Digital Image Inversion
Authors: Burley Troy , McKinnis Lynn , Ross Michael
Published: June 2024

A 69-year-old woman injured her low back while bending forward. Ten days after injury, lumbar spine radiographs ordered by her orthopaedist demonstrated mild spondylosis and no evidence of fracture. She was then referred to a physical therapist. Following examination, a spinal compression fracture was suspected. The initial digital radiographs were reviewed by the physical therapist images and enhanced using digital image inversion, and a potential compression deformity at the T11 vertebral body was noted. The patient was referred back to the orthopaedist, who ordered magnetic resonance imaging to further characterize the vertebral deformity. JOSPT Cases 2021;1(2):99–100. doi:10.2519/josptcases.2021.9738
Ulnar Neuropathy at the Wrist
Authors: Ghaly Beshoy , Boggs Ryan G. , Ross Michael
Published: June 2024

A 51-year-old female homecare aide was referred by her orthopaedic surgeon to a physical therapist for electrodiagnostic and musculoskeletal ultrasound assessments for suspected right carpal tunnel syndrome (CTS). Given its diagnostic accuracy, availability, and cost relative to magnetic resonance imaging for CTS, musculoskeletal ultrasound was selected for evaluation, which revealed enlargement of the median nerve.

JOSPT Cases 2021;1(3):148–149. doi:10.2519/josptcases.2021.9793
Prosthetic treatment of velopharyngeal insufficiency patient: A case report
Authors: Sharma Nikhil Kumar , Pradhan Itishree , Gaur Abhishek , Chopra Devendra , Yadav Pratibha
Published: June 2024

When the velopharyngeal valve exhibits an inability to autonomously close due to either insufficient tissue (velopharyngeal insufficiency) or inadequate movement (velopharyngeal incompetence), it leads to velopharyngeal dysfunction. Indications of this dysfunction encompass nasal liquid regurgitation, excessive nasal speech, nasal escape, speech articulation issues, and compromised speech comprehensibility. Managing velopharyngeal insufficiency through prosthetic intervention necessitates a closely coordinated effort between an otolaryngologist and a speech pathologist. This collaborative approach aims to facilitate socially acceptable speech patterns, prevent liquid seepage, and contribute to the rehabilitation of the patient.
Cost-effectiveness and efficacy of scalp block for elective supratentorial craniotomy in resource-limited settings: A randomized controlled trial
Authors: Kitsiripant Chanatthee , Boonyamarn Aunchitha , Oofuvong Maliwan , Prathep Sumidtra , Kaewborisutsakul Anukoon
Published: June 2024

Background:

Remifentanil is favored for neurosurgical pain management, but its utilization in low- and middle-income countries (LMICs) is limited. Scalp block techniques are effective in LMICs, but cost-effectiveness is uncertain. This study compares costs and perioperative outcomes of scalp block versus fentanyl infusion in patients undergoing elective supratentorial craniotomy.

Methods:

A prospective double-blind randomized controlled trial was conducted with 36 patients aged 18– 65 years undergoing elective supratentorial craniotomy. Patients were randomly assigned to receive either scalp block with 0.5% bupivacaine (Group S) or fentanyl infusion (Group F), with normal saline placebo administered in both groups. The primary endpoint was the anesthetic costs, with secondary endpoints including perioperative opioid consumption, intraoperative hemodynamic changes, and perioperative complications.

Results:

The cost of fentanyl was significantly lower than that of local anesthetics (3.31 [3.31, 3.75] vs. 4.27 [4.27, 4.27] United States dollars, P < 0.001). However, the overall anesthetic cost did not differ significantly between groups. Group F demonstrated a significant reduction in mean arterial pressure immediately and 5 min after pin insertion compared to Group S (75.8 [13.9] vs. 92.5 [16.9] mmHg, P = 0.003 and 67.7 [6.4] vs. 78.5 [10.7] mmHg, P < 0.001, respectively).

Conclusion:

Fentanyl infusion presents cost advantages over scalp block in LMIC settings. However, prudent opioid use is imperative. This study underscores the need for ongoing research to optimize neurosurgical pain management and evaluate long-term safety implications.
Surgical management of intraventricular neurocysticercosis: Two cases treated through transcallosal interhemispheric approach
Authors: Golden Nyoman , Tombeng Marthinson Andrew , Lauren Christopher
Published: June 2024

Background:

Cysticercosis, caused by the larval stage of Taenia solium, is a prevalent parasitic infection affecting the central nervous system, primarily in low-income countries. Surgical intervention becomes necessary when cysticercosis manifests within the ventricular system, with endoscopic techniques increasingly preferred over traditional microsurgical methods due to lower risks and morbidity. However, the microsurgical transcallosal approach, although effective, is infrequently used due to its associated high morbidity.

Case Description:

We present two cases of multiple intraventricular neurocysticercosis treated through an open microsurgical technique using a transcallosal interhemispheric approach. Patient 1, a 56-year-old male, presented with severe headaches persisting for 6 months, while Patient 2, a 54-year-old male, experienced a sudden decrease in consciousness. Both patients exhibited typical magnetic resonance imaging characteristics indicative of intraventricular neurocysticercosis, leading to the decision for surgical resection.

Conclusion:

Despite the transcallosal approach’s decreased popularity due to associated risks, we achieved relatively good outcomes with minimal morbidity in both cases. Our experience highlights the importance of considering microsurgical approaches, particularly in facilities lacking endoscopic instrumentation, for the effective management of intraventricular neurocysticercosis. Compliance with postoperative medical therapy remains crucial to prevent recurrence.
A Non-Inferiority Study to Compare the Effect of Silica Gel Fiber Dressing With Alginate Dressing on Healing of Venous Leg Ulcers
Authors: Zhang Long , Yang Jin , Wang Haofu , Cai Yunmin , Zhao Wenjun , Dong Ruiping , Liu Dongyang , Lu Xingwu
Published: June 2024

BACKGROUND: Silica gel fiber (SGF) dressing is a novel patch for wound healing. OBJECTIVE: To compare the efficacy and safety of SGF dressing with alginate dressing in local treatment of venous leg ulcers. METHODS: Patients with venous leg ulcers who had undergone effective treatment of venous hypertension and debridement were randomized to receive wound care with either SGF dressing or alginate dressing for 4 weeks. Wounds were assessed weekly during the first 4 weeks and then every 2 weeks until the 8th week. The primary endpoint was the efficacy rate. Secondary endpoints included ulcer area reduction rate, healing rate, frequency of dressing changes, pain score, patient satisfaction, and treatment-related adverse events. RESULTS: A total of 130 patients were enrolled, 67 treated with SGF and 63 with alginate dressing, and the efficacy rates were 89.6% (SGF group) and 84.1% (alginate group). SGF induced a higher “no pain” rate than alginate at week 2 (61.4% vs 43.5%) and week 3 (67.6% vs 53.1%), and a higher “highly satisfied” rate at week 4 (83.3% vs 78.8%) and week 8 (75% vs 59.1%). Markedly fewer dressing changes were required in the SGF group. CONCLUSIONS: SGF dressing is non-inferior to alginate dressing in treating venous leg ulcers. It even substantially decreased the frequency of dressing changes when compared with alginate dressing.
Antibiotic-Loaded Bone Cement Combined with Negative Pressure Wound Therapy for Treating Sacrococcygeal Wound Following Sacral Chordoma Resection: A Case Report
Authors: Sun Yanwei
Published: June 2024

BACKGROUND: Sacral chordoma is a rare, malignant primary bone tumor with subtle clinical manifestations. The extensive cavity and soft tissue defect after radical resection of the tumor can lead to complications such as sacrococcygeal skin necrosis, infection, cerebrospinal fluid (CSF) leakage, and delayed healing or nonhealing. PURPOSE: To describe the treatment effect of the combination use of antibiotic-loaded bone cement (ALBC), a gluteus maximus muscle flap, and negative pressure wound therapy (NPWT) on the nonhealing sacrococcygeal wound after sacral chordoma resection. CASE REPORT: A 67-year-old woman with a sacrococcygeal wound following sacral chordoma resection was admitted to the hospital. In the 2-stage surgery, the internal fixation and synthetic dura substitute were exposed and CSF leakage was found after debridement, a gluteus maximus muscle flap was used to cover the synthetic dura substitute to address the CSF leakage, ALBC was used to cover the internal fixation, and a modified NPWT system was fixed to the wound for improved flushing and drainage. RESULTS: The previously nonhealing wound healed 3 weeks postoperatively, and satisfactory recovery was achieved by 6-month follow-up. CONCLUSION: This case report suggests that the combination use of ALBC, gluteus maximus muscle flap, and NPWT can effectively promote sacrococcygeal wound healing after chordoma resection.
Genre et mathématiques à l’école : état des lieux dans le canton de Vaud et impact du système scolaire sur les parcours des élèves
Authors: Gregorio Francesca , Deruaz Michel , Marfaing Bénédicte , Chevalley Rosalie
Published: June 2024

Dans le canton de Vaud, tant au secondaire 1 qu’au secondaire 2, les filles sont moins nombreuses que les garçons dans les filières où les mathématiques sont importantes. Ce constat ne s’explique pas par les résultats scolaires dans cette discipline, les filles ayant un niveau équivalent à celui des garçons jusqu’au début du secondaire. Dans cet article, nous explorons cette problématique et quelques possibles leviers possibles.
Empowering Future Civic Educators: Exploring the Impact of the Kampus Mengajar Program on Professional Competence Development through Nvivo Qualitative Analysis
Authors: Nurlaili Novitasari Gemi , Prasetiyo Wibowo Heru
Published: June 2024

The swift evolution of our era has revolutionized education, necessitating well-prepared teachers to navigate the challenges of the 5.0 society. The Teaching Campus or Kampus Mengajar program (KM) stands as a governmental initiative addressing these global challenges. This study delves into the role of the KM program within the Civic Education Study Program, specifically examining its influence on the professional competence of aspiring teachers. Employing a qualitative approach with a descriptive design, this research aims to elucidate the impact of KM on students' professional development. Purposive sampling was utilized to recruit informants, and semi-structured interviews, complemented by documentation and Focus Group Discussions (FGD), were employed for data collection. Face-to-face interactions and member checking were integral to ensuring data validity. The study unveils that the 4th, 5th, and 6th KM programs effectively propel aspiring teachers towards professionalism by fostering competencies and realizing the program's objective of enhancing literacy and numeracy in students. The findings and recommendations presented herein offer valuable insights for future researchers endeavoring to explore and develop similar studies in the realm of teacher preparation programs.
Transferable Machine Learning Interatomic Potential for Carbon Hydrogen Systems
Authors: Faraji Somayeh , Liu Mingjie
Published: June 2024

In this study, we developed a machine learning interatomic potential based on artificial neural networks (ANN) to model carbon-hydrogen (C-H) systems. The ANN potential was trained on a dataset of C-H clusters obtained through density functional theory (DFT) calculations. Through comprehensive evaluations against DFT results, including predictions of geometries and formation energies across 0D-3D systems comprising C and C-H, as well as modeling various chemical processes, the ANN potential demonstrated exceptional accuracy and transferability. Its capability to accurately predict lattice dynamics, crucial for stability assessment in crystal structure prediction, was also verified through phonon dispersion analysis. Notably, its accuracy and computational efficiency in calculating force constants facilitated the exploration of complex energy landscapes, leading to the discovery of a novel C polymorph. These results underscore the robustness and versatility of the ANN potential, highlighting its efficacy in advancing computational materials science by conducting precise atomistic simulations on a wide range of C-H materials.