bluuebunny/crossref_metadata_2025 huggingface dataset:
Optimization design of bamboo filament decorated board process based on response surface
Authors: Li Hui , Chen Mei-Ling , Hu Luo-Xuan , Wang Xiao , Gu Zhong-Chun , Li Jun-Zhang , Yang Zhi-Bin
Published: November 2022

Bamboo filament decorated board is a new kind of bamboo and wood composite material. In this material, melamine-urea-formaldehyde (MUF) modified resin impregnated paper is used as the bonding material between bamboo filament decoration material and finger joint plate. This research investigated the effects of hot pressing temperature, time, and pressure on surface bonding properties of bamboo filament decorated board, and the optimum process parameters were determined. With the surface bonding strength as the evaluation index, the response surface analysis was used to optimize the design of the optimal hot pressing process. The optimum surface bonding strength of 1.13 MPa was achieved with the process parameters of 130 s (hot pressing time), 148 °C (hot pressing temperature), and 2.00 MPa (hot pressing pressure). The experimental values were in good agreement with the predicted ones, and the relative error was less than 5%, showing the optimized result.
Improving Red Reflex Screening in a Level III NICU Through a Quality Improvement-based Approach
Authors: Sakaria Rishika P , Davidson Jennifer M , Coleman Nakia , Wilcox Anna , Talati Ajay J
Published: November 2022

BACKGROUND

Red reflex is a routine part of newborn examination in most high-income countries. It is an inexpensive, noninvasive method of detecting serious ocular abnormalities like cataracts, retinoblastoma, vitreous masses, etc. The American Academy of Pediatrics recommends red reflex examination before discharge from newborn nursery. However, the current rate of red reflex examination in the NICUs in the United States is unknown. We noted a low rate of documentation (19%) in our level III NICU, prompting us to initiate this quality improvement project to improve this rate.

METHODS

We created a key-driver diagram and summarized possible interventions to achieve our aim to increase the documentation rate to >80%. We implemented various interventions over 4 plan-do-study-act cycles. Over 19 months, we educated the nurses and the providers regarding the importance of red reflex assessment, placed visual reminders to check red reflex, implemented discharge checklist for the residents, and improved the accessibility to ophthalmoscope.

RESULTS

Infants discharged from our NICU during a 25-month period included 1168 infants who an ophthalmologist did not formally examine. The rate of red reflex documentation improved significantly from a baseline of 19% (6 months before the first plan-do-study-act cycle) to 89.5% (during the 19-month intervention period). One abnormal red reflex was detected during this study.

CONCLUSIONS

Implementation of this project has led to a culture change at our institution, which will help prevent us from missing the diagnosis of serious visual abnormalities in the future.
Folliculitis decalvans: a case report of satisfactory recovery after implementing isotretinoin therapy
Authors: Porras-Villamil Julián Felipe , Hinestroza-Ruiz Ángela Catalina , Parra-Sepúlveda Doris Juliana , López-Moreno Gabriela Andrea
Published: November 2022

Introduction: Folliculitis decalvans is a rare skin disease characterized by the presence of painful papules and pustules with an underlying neutrophilic infiltrate, usually on the scalp. Its treatment is lengthy and challenging, and recurrence is relatively common. Although its etiology is unknown, several theories explaining its development have been proposed, including colonization by Staphylococcus aureus.
Case description: This is the case of a 26-year-old male healthcare worker who visited the outpatient service after experiencing a 4-year history of painful pustules on the scalp; initially these lesions were located in the occipital region, but then also started to appear in the temporal and parietal regions. After being treated for bacterial folliculitis and having several recurrences, a skin biopsy was performed, which allowed diagnosing him with folliculitis decalvans. Once the diagnosis was made, isotretinoin (20mg) treatment was implemented for a year and a half, achieving complete remission of the lesions.
Conclusion: Although this case has some limitations, such as the lack of histopathology images and some control laboratory tests, it clearly shows the difficulties faced when treating this type of skin disorders and presents an overview of the use of isotretinoin, evidencing that although this drug is well tolerated, possible adverse reactions from drug interactions with trimethoprim/sulfamethoxazole may arise. In addition, this case is of great importance since the possible presence of a familial cluster of folliculitis decalvans could be confirmed, if further genetic testing is performed.
Chronic recurrent multifocal osteomyelitis, a rare disease. Case report
Authors: Martinez Suarez Yazmin Paola , Amador Gutiérrez José Armando
Published: November 2022

Introduction: Chronic recurrent multifocal osteomyelitis (CRMO) is a rare inflammatory bone disease usually observed in children and adolescents. It is caused by an imbalance between proinflammatory and anti-inflammatory factors. To establish its diagnosis, it is necessary to integrate clinical and laboratory elements that are typically aimed at ruling out other conditions, constituting a diagnosis of exclusion. Treatment is based on non-steroidal anti-inflammatory drugs and other drugs in specific cases.
Case presentation: A 16-year-old female patient with a 1-year history of joint pain, especially in the knees, accompanied by signs of local inflammation was admitted to the emergency department of a quaternary care hospital due to a fever >38.5°, odynophagia, asthenia, and adynamia over the last two days. The patient underwent multiple extension studies, including laboratory, imaging and histopathological tests, which ruled out various etiologic causes. She received empirical antibiotic treatment without remission of symptoms, so a diagnosis of CRMO was finally established and outpatient treatment with non-steroidal anti-inflammatory drugs and corticosteroids was indicated, obtaining a favorable response.
Conclusions: CRMO should be considered in children and adolescents with bone pain and a poorly defined clinical history with non-specific laboratory, imaging and histopathological findings. To date, little is known about CRMO, so it is necessary to carry out research and expand the knowledge related to this disease.
Pentalogy of Cantrell. A stillbirth case report
Authors: Palencia Palacios Maribel , Fajardo Idrobo Blanca Viviana , López Mosquera López Mosquera , Álvarez Soler Jaime Antonio
Published: November 2022

Introduction: Pentalogy of Cantrell is a rare congenital disorder characterized by midline birth anomalies. Its embryological origins are related to anomalies of the abdominal wall that prevent the closure of the thorax. Its etiology is not yet clear, but it has been associated with a failure of migration of the lateral plate mesoderm to the midline.
Case description: A stillbirth at 25.2 weeks of gestation diagnosed with pentalogy of Cantrell. The mother was a 14-year-old teenager with no relevant history of disease. An obstetric ultrasound was performed at 19 weeks of gestation and revealed findings suggestive of pentalogy of Cantrell. The mother was informed of the potential risks and future complications for the fetus, yet she chose to continue with the pregnancy. At 25.2 weeks of gestation, the mother went to the emergency department due to pain in the hypogastrium accompanied by moderate vaginal bleeding and absence of fetal activity. Once fetal death was confirmed by ultrasound, labor was induced, resulting in stillbirth with anencephaly, thoracic hypoplasia, gastroschisis, and eventration of the liver.
Conclusions: Adequate antenatal care, including strict ultrasound follow-up, is essential to detect future complications in the fetus; to provide advice on possible malformations incompatible with life, such as pentalogy of Cantrell; and to determine the best therapeutic approach.
Treatment approach to a patient with catamenial epilepsy. Case report
Authors: Martínez Ramírez Mauricio Andrés , Sanchez Gutiérrez Sandra Milena , Guzmán Yara Yuly Natalia , Pinzón Jaime Karol Zeleny , Rueda Cataño Silvia Carolina , Sarmiento Bocanegra Laura Fernanda , Sánchez Marín Luisa Cristina , Lasprilla Villalobos Sara María
Published: November 2022

Introduction: Catamenial epilepsy refers to the worsening or exacerbation of seizures due to hormonal changes during the menstrual cycle. It is thought to be secondary to the neuroactive properties of endogenous steroid hormones and the natural cyclic variation in their serum levels throughout the menstrual cycle.
Case presentation: A 31-year-old female patient from Bogotá (Colombia) was admitted to the emergency department due to an episode of tonic-clonic seizure associated with the menstrual period. Since the onset of the seizures was related to menstruation (every 28 days), it was established that the patient had structural focal epilepsy with catamenial features. Advantages of medical vs. surgical treatment were discussed during a multidisciplinary medical board and it was decided to start pharmacological treatment with progestogens, which resulted in complete remission of the seizures as established during a follow-up visit.
Conclusions: Catamenial epilepsy should be considered as a cause of epilepsy refractory to antiepileptic medications. Furthermore, it should be approached from a multidisciplinary perspective and its management should be focused on improving the patients’ quality of life.
Increase brand loyalty through brand benefits on domestic products in Indonesia
Authors: Dirgantari Puspo Dewi , Yusary Sarah , Wibowo Lili Adi , Hidayat Yusuf Murtadlo , Soegoto Eddy Soeryanto , Mahphoth Mohd Halim , Martha Jefry Aulia
Published: November 2022

This study aims to analyze the effect of brand benefits in increasing brand loyalty of domestic products in Indonesia, a study on users of Indonesian domestic skincare products. A quantitative approach was used in the research, by distributing a comprehensive questionnaire and literature. The number of samples obtained was 200 people and Structural Equation Modeling was used in the data analysis technique. The results of the study show that the description of brand benefits and brand loyalty is quite high and brand benefits have an effect on brand loyalty. The dimension of brand benefit that contributes the most is emotional benefit, while the dimension of brand benefit that contributes the least and needs to be improved is social benefit.
IMPLEMENTASI BUDIDAYA MINA PADI DI KOTA MAGELANG
Authors: Hardjanto Kurnia
Published: November 2022

Sektor pertanian memiliki peran penting dalam penyediaan pangan nasional dan berkontribusi dalam memperkuat program ketahanan pangan. Ketahanan pangan sendiri telah diangkat sebagai isu global dalam permasalahan pangan dunia. Ketersediaan lahan untuk pertanian dan perikanan di perkotaan cenderung mengalami penurunan setiap tahunnya, termasuk di Kota Magelang. Ditambah pula kebutuhan bahan pokok pangan seperti beras sebagai sumber karbohidrat dan ikan sebagai sumber protein terus meningkat seiring dengan peningkatan jumlah penduduk. Usaha budidaya ikan dan padi (mina padi) telah diterapkan oleh beberapa petani di Kota Magelang, tetapi belum dilakukan secara berkesinambungan dan berkelanjutan. Tujuan dari penelitian ini adalah untuk menganalisis usaha mina padi yang telah dilakukan beserta strategi untuk pengembangan usaha mina di Kota Magelang. Metode penelitian yang digunakan adalah analisis deskriptif. Hasil penelitian menunjukkan bahwa budidaya mina padi yang dilakukan terdiri dari beberapa proses, yaitu pemilihan benih padi dan ikan, persemaian benih padi, persiapan lahan, penanaman padi, penebaran benih ikan, pemupukan, penyiangan gulma, pemeliharaan ikan, pengendalian hama dan penyakit serta pemanenan hasil. Nilai R/C ratio sebesar 2.58 dan B/C ratio 1.58 yang diperoleh menunjukkan bahwa budidaya mina padi layak untuk dikembangkan di Kota Magelang. Strategi pengembangan usaha mina padi di Kota Magelang diantaranya dengan penguatan kelembagaan pelaku pertanian, pengendalian hama dan predator pengganggu secara berkala serta peningkatan pengetahuan dan ketrampilan sumber daya manusia.
Perbandingan Klorofil-a dan Kelimpahan Plankton di Perairan Pantai Kabupaten Pinrang Provinsi Sulawesi Selatan
Authors: Hatta Muh. , Umar Nur Asia , Rustam Agustin
Published: November 2022

Tujuan penelitian ini adalah untuk membandingkan kandungan klorofil-a, kelimpahan fitoplankton, zooplankton, dan beberapa nilai parameter lingkungan berdasarkan bulan pengamatan selama periode Mei sampai dengan Agustus 2021. Manfaat penelitian diharapkan dapat memberikan informasi dasar tentang penyebaran klorofil-a, kelimpahan fitoplankton, kelimpahan zooplankton, dan parameter lingkungan untuk dijadikan pertimbangan dalam pengelolaan perikanan tangkap. Penelitian dilaksanakan mulai Mei sampai dengan Agustus 2021 di perairan Pantai Kabupaten Pinrang, Provinsi Sulawesi Selatan. Penelitian ini terbagi menjadi beberapa tahap yang meliputi tahap persiapan, penentuan stasiun, dan pengambilan sampel, pengukuran parameter fisika dan kimia perairan, identifikasi dan pencacahan fitoplankton, analisa data serta analisa stastistik. Analisis statistik yang digunakan adalah Analisis One Way Anova, Uji lanjut Post-Hoc Test menggunakan metode Tukey untuk membandingkan rata-rata kelimpahan antar stasiun. Hasil analisis menunjukkan bahwa pada Mei sampai dengan Agustus di perairan pesisir Kabupaten Pinrang kandungan klorofil-a relatif homogen, rata-rata kelimpahan fitoplankton pada Agustus lebih tinggi dibandingkan pada bulan Juni dan Juli, kelimpahan zooplankton relatif homogen selama bulan Mei sampai dengan Agustus. Rata-rata salinitas dan pH berbeda nyata antar bulan pengamatan, sedangkan suhu dan kadar DO tidak berbeda nyata antar bulan pengamatan.
Mucinous Tubular and Spindle Cell Renal Cell Carcinoma (MTSC-RCC) with an Unusual Presentation in a Child
Authors: Sharma Kanika , Dhua Anjan , Agarwala Sandeep , Kaushal Seema
Published: November 2022

Mucinous tubular and spindle cell renal cell carcinoma (MTSC-RCC) is a rare but favorable variant of renal cell carcinoma, predominantly found in adults. Complete surgical excision is the treatment of choice. We are reporting an intriguing case of bilateral MTSC-RCC in a 13-year-old-boy with rapid disease progression, leading to metastatic disease and subsequent demise of the child.
Follicular Keratosis in Adolescents: Diagnostic Features and Cosmetological Aspects of Therapy
Authors: Ikonnikova Evgenia V. , Kruglova Larisa S.
Published: November 2022

Follicular keratosis (FK) is one of the most common dermatological diseases in children. FK manifests usually in early childhood and worsen frequently, thus, symptoms are more prominent during puberty. The skin of proximal extensors of upper and lower limbs is mainly affected, while skin of cheeks, back and buttocks is affected more rarely. FK is just a cosmetic defect which significantly affects adolescents’ self-esteem and emotional state up to the development of severe depressive syndrome and obsessive conditions accompanied by pathomimia. FK can be associated with other nosologies such as: atopic dermatitis, vulgar ichthyosis, obesity, diabetes mellitus, and even aggravate Down and Noonan syndromes. Spontaneous improvement is still possible with age. We can use topical therapy with emollient, keratolytic, anti-inflammatory drugs, as well as various types of laser and phototherapy to alleviate the disease symptoms. This article provides basic information on etiology, pathogenesis, and treatment of FK with clinical case description.
Export of medical services: organization and development tools in a medical organization : Methodological recommendations
Authors: Drapkina O.M. , Shepel R.N. , Bezzubenko O.I. , Chernyshev E.V. , Garkavenko V.A. , Glotov S.S. , Mikheeva M.V. , Rezina A.G. , Troneva V.E. , Urvantseva I.A.
Published: November 2022

В издании представлены современные тенденции развития медицинского туризма в Российской Федерации, проанализированы успешные практики реализации экспорта медицинских услуг на примере субъекта Российской Федерации и отдельной медицинской организации. Авторами представлены рекомендации по совершенствованию организации работы служб сопровождения иностранных пациентов, системы сервиса и прочих бизнес-процессов внутри медицинской организации. Представлены типовые документы, которые могут быть применены медицинскими организациями в практической деятельности
CONSTRUÇÃO E OPERAÇÃO DE APARELHO DE DESTILAÇÃO DIDÁTICO: UMA PROPOSTA COMO TEMA GERADOR PARA O ENSINO-APRENDIZAGEM
Authors: Crestani Carlos Eduardo , Pereira Adriano Ribeiro
Published: November 2022

A proposta de ensino-aprendizagem descrita nesse trabalho pretende mobilizar habilidades e competências por meio de experimento gerador de práticas vivenciadas pelos estudantes. A operação de colunas didáticas de destilação e retificação de etanol como ferramenta pedagógica, aumenta a possibilidade de aprendizado, já que o estudante perceberá o processo análogo ao industrial usando todos os seus órgãos do sentido. Segundo os pensadores Piaget, Vygotsky, Morin, Charlot e Freire, o ensino através do trabalho em equipe, operação manual de equipamentos e aplicação no meio produtivo, objetiva uma ação fortemente geradora de aprendizado, com potencial mitigador da frustração dos estudantes, englobando além da formação técnica a formação humana e social. A agroindústria sucroenergética é um setor que necessita cada vez mais de profissionais com formação técnica específica. É proposta, então, a construção do aparelho didático supracitado, a partir de latas de atum, tubos de cobre, panelas de pressão, canos de PVC, conexões de latão, válvulas de retenção, termômetros digitais, manômetros analógicos, bomba d’água, cola epóxi, isolantes térmicos, mangueiras de silicone, estante para suporte das colunas e acessórios, fogareiro a gás GLP, entre outros componentes. A pretensão foi construir a coluna de destilação didática o mais semelhante possível dos destiladores clássicos industriai, com seus trocadores de calor, regeneradores, reservatórios, etc, além dos componentes internos das colunas como vertedores, barragens e borbulhadores. O manual de funcionamento do destilador, suas limitações tecnológicas e exemplos de atividades em uma sequência didática, são ferramentas adicionais que ajudam na incorporação de habilidades e competências inerentes ao processo industrial.
EL COMERCIO DE ESCLAVOS GUAYAQUIL-PAITA EN LOS ÚLTIMOS DECENIOS DEL SIGLO XVIII
Authors: Rivas Julissa Gutiérrez
Published: November 2022

El artículo se basa en documentación archivística primaria en la que se detecta un buen número de esclavos arribados por el puerto de Paita en las dos últimas décadas del siglo XVIII procedentes de Guayaquil, cuando lo común era que proviniesen de Panamá. Por ello, se analizó por qué en los dos últimos decenios ocurrió este comercio con más frecuencia, a diferencia de los primeros ochenta años en que apenas ingresaron algunos al menudeo. Ello nos condujo a ofrecer una mirada a lo sucedido en Guayaquil y en Perú en general. Asimismo, se realizó una aproximación a la cantidad de esclavos introducidos, así como se identifica a los sujetos activos (comerciantes) y pasivos (esclavos) y el papel que tuvieron estos últimos como mano de obra. Se empleó información procedente de los archivos General de la Nación de Lima y Regional de Piura, analizados a la luz del método de triangulación y del modelo establecido por Jean Pierre Tardieu para sus trabajos sobre la esclavitud en distintos ámbitos geográficos, los cuales presentan casi siempre la misma estructura. La investigación concluye que los esclavos procedían de Guayaquil conducidos en su mayoría por comerciantes limeños que aprovechaban el tornaviaje en el comercio del cacao. Además, la compra fue al menudeo, hombres y mujeres en igual proporción. Esto permite sugerir que fueron destinados tanto al trabajo en haciendas como al servicio doméstico.
CLOSED-FORM SOLUTIONS OF DARCY-BRINKMAN FLOW: COMPILATION OF EXISTING AND NEW SOLUTIONS
Authors: Wang C. Y.
Published: November 2022

Exact closed-form solutions for the Darcy-Brinkman equation are considered. The assumptions are discussed. The existing solutions can be classified as parallel flow, flow in rotating system, stagnation flow, and transverse flow. Some solutions do not have a clear-fluid counterpart. The stagnation flow on a circular cylinder is introduced. A new class of solutions, which describe the flow in non-circular ducts, is presented.
MAGNETIC CONVECTION-RADIATION INTERACTION IN WAVY POROUS TRIANGULAR CONTAINERS USING HYBRID NANOFLUIDS: ENTROPY ANALYSIS
Authors: Ahmed Sameh Elsayed , Reddy P. Bala Anki , Jakeer Shaik , Rashad Ahmed M. , Salah T.
Published: November 2022

The free convection in triangular enclosures can be found in various practical applications such as microelectronic devices, design of building roofs and attics, geophysical applications, solar collector electric machinery, ventilation in rooms, and cooling of electronic devices. Therefore, this study aims to examine the free convection in sinusoidal, wavy porous triangle-shaped containers full of Al2O3-CuO/water hybrid nanosuspension under the impacts of internal heat generation, inclined Lorentz force, and thermal radiation. The two heating mechanisms are classified into two distinct situations: Case 1 (C1) is a triangle-shaped domain that has a heated portion on the left edge and the lower edge is cold; Case 2 (C2) is a triangle-shaped domain with a cold part on the left edge and a lower heated wavy edge. The dimensionless forms of governing system with the considered conditions are transformed numerically using the finite elements approach via the characteristic-based split (CBS) algorithm. The gained outcomes are portrayed graphically via streamlines, isotherms, entropy features, and the Bejan issue. The heat transfer rate and fluid flow in view of internal heated and wavy walls play a significant role. The influence of the magnetic force highly controls the flow structures inside the cavity; fluid velocity moves in below the heated wavy surface because of the magnetic force performed in the incline orientation. The growth in the undulation number weakens the highest absolute value of the streamlines, or the convective case strength in the cavity. The vertical temperature increases the nanoparticle volume fraction and (St)avg into the cavity at α = 30° to 60°.
Monitoring of the Queensferry Crossing, Scotland
Authors: Cousins David Peter , McAra David , Hill Chris
Published: November 2022

The Queensferry Crossing opened in 2017 to enhance the resilience for road vehicles crossing the Firth of Forth outside Edinburgh, Scotland. The M90 carriageway consists of two lanes of traffic in each direction and hard shoulders. The three-tower, cable-stayed structure extends for 2.7 km, including approach viaducts. Structural health monitoring was specified by the employer in the construction works including 2184 physical sensors, which is believed to be the world's largest bridge monitoring system. This paper describes the monitoring and its uses thus far. A load test was conducted in 2020, comparing the sensor data favourably to the design. The monitoring is now integral to the operation of the bridge for measurement of structural performance and the management of the route. Automated reports give analysis of fixed periods of time and further detail for specific triggered events in occurrences of high load, abnormal load movements and extreme weather. The user interface includes a threshold alert system informing of the need for specific inspection and maintenance regimes. Route management in winter and extreme weather response is enhanced with the inclusion of sensor data. Monitoring data are also being used for research at various universities, each of which is described in brief.
Review of the genus Pseudocoruncanius Meng, Qin et Wang, 2020 (Hemiptera: Fulgoromorpha: Issidae), with the description of a new species from Vietnam
Authors: Gnezdilov Vladimir M.
Published: November 2022

Pseudocoruncanius Meng, Qin et Wang, 2020 (in Zhang et al. 2020) is placed in the tribe Sarimini and reviewed with its relationships discussed. Pseudocoruncanius nigrifrons sp. n. is described from Tam Dao forest in northern Vietnam, which is the first record of the genus from mainland Asia. A key to species of the genus Pseudocoruncanius is given.
Larval development and habitat usage of stream-breeding Fire salamanders in an urban environment
Authors: Kiss István , Vörös Judit , Hamer Andrew J.
Published: November 2022

Urbanisation adversely affects the abiotic and biotic characteristics of watercourses, including freshwater streams that support the development of stream-breeding salamanders. We conducted a study over four years on an isolated fire salamander population inhabiting a stream valley northwest of Budapest, Hungary. Our aim was to understand aspects of larval development and habitat usage within this population. The maximum number of larvae was observed in April and the first weeks of May. Due to drifting caused by heavy rainfall, there was a mean decrease of 63.3% in the number of larvae. The abundance of larval salamanders within 16 stream segments showed strong temporal and spatial variation, and there was a strong relationship between larval abundance and the % cover of fine gravel substrate. Some of the larvae could escape drift by entering pools with slower water flow and shelter. Larvae were predominantly solitary in smaller pools but occasionally aggregated in high numbers in some segments. The first larvae with yellow spots (indicative of metamorphosis) appeared in June, and by early September, all larvae were metamorphosing. Our results show that in this urbanised environment, larval development through to metamorphosis is occurring, but increasing urbanisation and alterations to stream flow threaten the persistence of the local population.
Modeling of the PSK utilization at the signal transmission in the optical transmission medium
Authors: Roka Rastislav , Mokráň Martin
Published: November 2022

This paper deals with a modeling of the phase shift keying (PSK) and the possibility of implementing PSK modulations using Mach-Zehnder modulators in the Matlab simulation environment. Next, a simulation of selected multi-level PSK modulations utilizing at the signal transmission in the optical transmission medium is executed. Finally, a comparison of modulated optical signals before and after passing a model of the optical transmission path is introduced, using constellation diagrams, signal characteristics, eye diagrams and waterfall curves of individual signals.
A Deterministic Algorithm for the Deployment of Wireless Sensor Networks
Authors: Frattolillo Franco
Published: November 2022

Wireless sensor networks are made up by communicating sensor nodes that gather and elaborate information from real world in a distributed and coordinated way in order to deliver an intelligent support to human activities. They are used in many fields such as national security, surveillance, health care, biological detection, and environmental monitoring. However, sensor nodes are characterized by limited wireless communication and computing capabilities as well as reduced on-board battery power. Therefore, they have to be carefully deployed in order to cover the areas to be monitored without impairing network lifetime. This paper presents a new deterministic algorithm to solve the coverage problem of well-known areas by means of wireless sensor networks. The proposed algorithm depends on a small set of parameters and can control sensor deployment within areas even in the presence of obstacles. Moreover, the algorithm makes it possible to control the redundancy degree that can be obtained in covering a region of interest so as to achieve a network deployment characterized by a minimum number of wireless sensor nodes.
Filtering Dishonest Trust Recommendations in Trust Management Systems in Mobile Ad Hoc Networks
Authors: Ullah Zakir , Islam Muhammad Hasan , Khan Adnan Ahmed , Sarwar Sohail
Published: November 2022

Trust recommendations, having a pivotal role in computation of trust and hence confidence in peer to peer (P2P) environment, if hampered, may entail in colossal attacks from dishonest recommenders such as bad mouthing, ballot stuffing, random opinion etc. Therefore, mitigation of dishonest trust recommendations is stipulated as a challenging research issue in P2P systems (esp in Mobile Ad Hoc Networks). In order to cater these challenges associated with dishonest trust recommendations, a technique named “intelligently Selection of Trust Recommendations based on Dissimilarity factor (iSTRD)” has been devised for Mobile Ad Hoc Networks.  iSTRD exploits  personal experience of an “evaluating node” in conjunction with majority vote of the recommenders. It successfully removes the recommendations of “low trustworthy recommenders” as well as dishonest recommendations of “highly trustworthy recommenders”. Efficacy of proposed approach is evident from enhanced accuracy of “recognition rate”, “false rejection” and “false acceptance”.  Moreover, experiential results depict that iSTRD has unprecedented performance compared to contemporary techniques in presence of attacks asserted.
Calculating and Evaluating Trustworthiness of Certification Authority
Authors: EL UAHHABI Zakia , EL BAKKALI Hanan
Published: November 2022

In  a  public  key  infrastructure  trust  model,  a  trust  is transferred along a set of certificates, issued by certificate authorities (CAs) considered  as  trustfully  third  parties,  providing  a  trust chain among  its  entities.  In  order  to  deserve  this trustworthiness,  a  CA should to apply the rigorous procedures for generating keys, checking the  identities,  and  following  reliable  security  practices.  Any deficiency in  these procedures  may in?uence its trustworthiness.  In this  context,  some  authorities  could  be  weaker  than  others.  Then, relying parties (RPs) and certificate holders (CHs) need a mechanism to evaluate CA trustworthiness. In this paper, we provide them this mechanism to have information about its trustworthiness. In fact, we propose  a  trust  level  calculation  algorithm  that  is  based  on  three parameters  which  are  the  CA  reputation,  the  quality  of  procedures described in the certi?cate policy and its security maturity level.
Paisajes de riesgo. Aspectos conceptuales, potencialidad didáctica en el aula y utilidad práctica en la planificación territorial / Risk landscapes. Conceptual aspects, didactic potentiality in the classroom and practical utility in spatial planning
Authors: Olcina Cantos Jorge
Published: November 2022

El espacio geográfico alcanza su estado superior con la creación de paisajes. El paisaje es la manifestación visual del grado de civilización de una sociedad; es la manera de organización de un territorio que recoge espacialmente la cultura de una comunidad. En ocasiones, esa organización no es la correcta y refleja el desconocimiento o el olvido del funcionamiento del medio natural, a veces extremo. Se generan así paisajes de riesgo, que se caracterizan por el elevado grado de vulnerabilidad de la población que lo ocupa. El factor humano es clave para caracterizar un paisaje de riesgo. Se propone una actividad para la enseñanza de los paisajes de riesgo en el aula, para diferentes niveles educativos, como elemento especialmente idóneo para el conocimiento del riesgo existente en un espacio geográfico y para la reducción del grado de exposición. Y se señala la necesidad de incorporar estas unidades de paisaje en los procesos de planificación territorial.
Forecasting the magnitude of the electrical load in electrical complexes of aircraft
Authors: Chernov Alekcander E. , Maleev Ruslan A. , Eroshkin Dmitry A. , Fedorenko Elena N.
Published: November 2022

BACKGROUND: The issue of forecasting, analysis and control of electrical load becomes more significant both within the framework of the electrical complex of the summer apparatus as a whole, and for certain groups of electric energy consumers. Forecasting the electrical load is necessary to solve the problem of optimizing the operational state of an electrical complex or system, under constantly changing conditions and changing environment, which entails a change in power. Recently, a relatively new method has often been used, which is based on fuzzy logic. This method is a symbiosis of fuzzy logic and neural networks, which includes the main properties characteristic of these areas. Thanks to the use of a well-established fuzzy neural technology implemented in a correctly designed and trained fuzzy neural network for predicting electrical loads, it became possible to ensure sufficiently high accuracy and speed of load prediction.
AIMS: The purpose of the work is to analyze methods for predicting the electrical load of the aircrafts electrical and technical complex, as well as to determine the most optimal methodology for predicting the electrical load of an autonomous aircraft used in the armed forces.
METHODS: Modeling of working conditions is performed in the Matlab program and its applications Simulink. At the same time, with the help of the fundamental blocks of this application, models of the physical components of the electrical complex of the aircraft are created.
RESULTS: For a substantive assessment of the prediction of the magnitude of the electrical load of the electrical complex of the aircraft, an algorithm implemented on a computer has been developed. It provides for the implementation of retrospective calculations taking into account the amount of power generated, the duration of operation and the flow of electricity in the electrical complex as a whole.
CONCLUSIONS: Due to the use of a well-established fuzzy neural technology for predicting electrical loads, implemented in a correctly designed and equipped fuzzy neural network, it became possible to provide the necessary accuracy and speed of predicting electrical loads.
Development of a dynamic model of a front loader for the analysis of operational properties and determination of loads acting on its elements
Authors: Chichekin Ilya V. , Nyrkov Filipp A. , Grigoruev Vladimir S.
Published: November 2022

BACKGROUND: For front-end loaders, it is important to minimize energy consumption when performing loading and unloading operations. To ensure competitive properties at a given time of folding links, lifting and with sufficient power of the steering and boom and bucket control drives. This requirement significantly affects the autonomy, versatility and, ultimately, the economic efficiency of loading and unloading operations.
AIMS: Development of a dynamic model of a front loader to determine various operational properties and loads in the joints when working in specified load conditions.
METHODS: A dynamic model has been developed and its operation has been simulated in a system for calculating the dynamics of coupled bodies. The mathematical model includes all the main elements of a front loader drive axles, internal combustion engine, generator, steering hydraulic cylinders, cargo, bucket, rear axle, cab, wheels, bucket lifting and tipping mechanism, load-bearing system, support surface, TED drive of the driving wheels. The elements are modeled using graphical primitives, hinges and power ones from the standard library of the application for calculating the dynamics of connected bodies.
RESULTS: The article presents a description of a mathematical model of a front loader made in the application for the calculation of connected bodies. A typical list of load modes is presented and examples and simulation results are shown. Possible areas of use of the described mathematical model are shown.
CONCLUSIONS: The developed dynamic model of the front loader makes it possible to analyze various design solutions at the early stages of design, such as the model and number of electric motors, kinematics of the bucket lifting and tilting mechanism, steering kinematics, etc. for energy costs during typical operations. In addition, the developed dynamic model allows you to determine the loads in the hinges and power connections, which can be used when performing strength calculations or when selecting loader components.
INFRASTRUCTURE AS A DETERMINANT OF NATIONAL ADVANTAGE IN SERVICE EXPORT: THE CASE OF TÜRKİYE
Authors: BİLGİÇ Emre
Published: November 2022

Today, service sector is the dominating sector of especially developing and developed economies. Herein, gaining national advantage in international trade in services is critical for each country. Therefore, this research considers infrastructure as one of sources of national advantage and examines the impact of infrastructure (divided roads, railways, medical institutions, tourism operation certificated businesses, universities) on service export in Türkiye. In accordance with this purpose, cointegration analysis was carried out for the period of 1982-2020 by leveraging ARDL model. The results indicate that while divided roads, railways and the number of tourism operation certificated businesses have positive and significant impact on service export in Türkiye, the number of universities and medical institutions have negative and insignificant effect on service export in Türkiye. At the end of the research some recommendations for policymakers are provided.
Student as a Clinical Teacher: Evaluation of Peer Teaching Experience in Clinical Education
Authors: Abdulrahman Khalid , Alfadhel Mohammed , Alswayed Khalid , Al-Thakfan Naif
Published: November 2022

Background: peer teaching is considered one of the best methods of active learning strategies. The study aims to evaluate the perception of their peer-teaching experience, assessing their satisfaction with the quality and efficacy of the process. Methods: A cross-sectional study was performed using anonymous self-administered online questionnaires. The study aimed at medical students in Riyadh, Saudi Arabia, who have been enrolled in the peer teaching process at least once. Results: of the 188 medical students who completed the study questionnaire, 77.1% were male. About half of them (48%) reported participating in at least one or more peer teaching sessions discussing medical contexts. More than half (55.3%) had indicated that they preferred a peer student to learn from an informal educational session. About two-thirds (75%) of the students thought they would possibly conduct future peer-assisted clinical teaching sessions if needed. The top three benefits of peer teaching from the student's point of view were; 1. peer-assisted clinical education enhances clinical skills and knowledge retention, 2. Has a positive impact on the performance of clinical exams; 3. helped to apply clinical skills during regular curricular clinical courses. Conclusions: the study confirmed that peer education is an effective learning method in the clinical phase. Medical colleges should provide the appropriate environment that encourages senior students to teach their peers. Junior students and students of one batch should teach each other and try to be active teachers and learners alike.
Cerebral Venous Sinus Thrombosis Following Scrub Typhus Infection: A Case Report and a Review of the Literature
Authors: Biswas Uttam , Ghosh Ritwik , Chakraborty Arghya , Mondal Shakilur , Roy Dipayan , Bhattacharjee Arnab , Roy Debanjan , Benito-León Julián
Published: November 2022

Neurological manifestations of scrub typhus, a re-emerging infectious disease of tropic/subtropics caused by Orientia tsutsugamushi infection, have been ever-evolving. Several central nervous system infections have been acknowledged for the development of cerebral venous sinus thrombosis (CVT). Nevertheless, CVT has been a rarely described addendum to the ever-evolving “neuro-scrub” spectrum. Proposed pathogenesis for the development of CVT is disseminated endotheliitis resulting in the triad of venous stasis (due to raised intracranial pressure), cerebral vasculopathy (endothelial damage), and capillary perivasculitis (endothelial damage and resultant hypercoagulable state generated by inflammatory mediators). We herein report a case of a previously healthy young female from the Indian subcontinent who was diagnosed with CVT, following scrub typhus. She responded well to conventional therapy with antibiotics and anticoagulants. CVT is amid the few completely reversible neurological catastrophes if diagnosed and treated early. Again, scrub typhus infection is treated with commonly available and extremely "affordable" antibiotics therapy. Hence, the authors propose that all cases of acute febrile illness with neurological manifestations from scrub-typhus endemic zones (like several parts of India) should be tested for the presence of Orientia tsutsugamushi infection and treated accordingly.
Pulsed Electromagnetic Field Therapy (Seqex, Theta) Promotes Well-being as assessed by Heart Rate Variability: A Pilot Study
Authors: Havas Magda , Symington Sheena
Published: November 2022

Frequency therapy, in the form of pulsed electromagnetic fields, is becoming increasingly popular within the scientific/medical community as is heart rate variability for assessing wellness. These two techniques were combined to determine if a particular pulsed electromagnetic field treatment (Seqex, Theta) had any beneficial effects (based on Brain Tap HRV) on 20 volunteers ranging in age from 21-81. Treatment consisted of a 36-minute exposure to 4–8 Hz with a magnetic flux density between 12 to 68 mG and several proprietary waveforms. Treatment was conducted at a wellness clinic that had low levels of electromagnetic fields/radiation and heart rate variability was tested immediately before and immediately following treatment. Significant benefits were documented for 72% of the participants and these were associated with reduced stress and a lower biological age (vs. chronological age) as indicators on Brain Tap HRV. Indices for cardiovascular health; LF/HF balance, neurohormonal regulation and psychoemotional state all improved overall as did energy resources and energy balance (catabolic vs. anabolic). Individuals who believed they were sensitive to electromagnetic fields (i.e. had electrohypersensitivity) also improved. Some of the beneficial results persisted over a 24-hour period. Despite this positive outcome, 28% of the participants either showed no objective change or were worse (based on heart rate variability) immediately following treatment. We conclude that pulsed electromagnetic field treatments may be highly beneficial even among those who have electrohypersensitivity resulting in reduced stress and improved homeostasis. However, treatments should be provided in an electromagnetic clean environment for optimal results and objective testing with heart rate variability, or some other assessment tool, should be used to ensure that the patient is receiving a treatment that is beneficial.
The Role of Coronary Microvascular Disease in Cardiomyophaties
Authors: Bayón Jeremías , Rodriguez-González Eva-Fernanda , Santás-Álvarez Melisa , Abellás-Sequeiros Rosa-Alba , Ocaranza-Sánchez Raymundo , González_Juanatey Carlos
Published: November 2022

Coronary microvascular disease (CMD) makes reference to the anatomically and functionally disorders affecting vascular compartments (<400 mm diameter), covering a broad range of clinical conditions in which the structure and function of the coronary microcirculation is affected. CMD is characterized by an impaired coronary flow reserve (cut-off values of 2.0-2.5) or an abnormally index of coronary microvascular resistance (IMR >25) and/or focal or diffuse vasoconstriction during acetylcholine challenge, with an important role in myocardial perfusion. The aim of this work is to review CMD, definition, clinical manifestations, diagnosis method (non invasive and invasive approach) and the role of CMD in the main cardiomiophaties, such as Hypertrophic cardiomiopathy, none idiomatic dilated cardiomiopathy and infiltrative miocardiophaty.
Breast Cancer-Related Lymphedema: A Review of Management and Innovative Surgical Techniques
Authors: Newsom Keeley , Xiang David , Yang Alan , Copeland-Halperin Libby , Weiss Anna , Broyles Justin
Published: November 2022

Lymphedema is one of the most feared complications of breast cancer treatment. The objective of this article is to review the basic workup, staging, and diagnostic criteria for lymphedema and to discuss non-surgical and surgical treatments, with a focus on breast-cancer related lymphedema. Non-surgical treatment consists of intensive physical therapy including manual lymphatic drainage via massage, daily compression wraps, and exercises to prevent scarring and increase mobility. Surgical intervention is considered when non-surgical treatment is ineffective or more recently as a preventive measure. Surgical interventions, used once lymphedema has developed, include 1) lympho-venous bypass, which is the anastomosis of lymphatic vessels distal to the site of dermal backflow to neighboring venules to shunt lymphatic drainage away from the area of lymphatic injury; 2) vascularized lymph node transplant, in which lymph nodes are harvested from a donor site with their supporting artery and vein and transferred to the affected recipient site; and 3) debulking procedures including liposuction and direct excision. Preventive surgical interventions include 1) lymphatic microsurgical preventive healing approach, known as LYMPHA, which also utilizes lympho-venous anastomoses but at the time of lymph node dissection to anastomose lymphatic channels transected during lymph node dissection with adjacent veins to preserve lymphatic drainage of the arm; and 2) axillary reverse mapping, which involves tracer or dye injection within the ipsilateral arm before axillary surgery so that the breast surgeons are able to delineate nodal drainage and therefore attempt to spare nodes specific to arm tissue provided they are not the sentinel lymph node. Patient selection is critical for these procedures, and requires a multi-disciplinary approach.
Vitamin D Deficiency is Associated with Knee Osteoarthritis and is Implicated in the Osteoarthritis Severity
Authors: Mathkhor Abdulsatar , Abdullah Abdulnasser , Atwan Ali , Kamel Zahraa
Published: November 2022

Background: Levels of Vitamin D may impact the development and progression of knee osteoarthritis (OA), a disorder common in elderly people The aim of this study was to investigate the association between serum Vitamin D deficiency and knee OA. Methods: One hundred twenty (40 male and 80 female) consecutive patients were recruited from the rheumatology outpatient clinic for the study. X-rays in two anterior-posterior and lateral views of the knees were performed for all patients. Staging of knee OA was done according to Kellgren-Lawrence criteria and divided into two groups; group A consisting of grades 1 and 2, and group B, consisting of grades 3 and 4. One hundred (30 male and 70 female) healthy individuals without clinical and radiographic signs of the disease were defined as a control group. Hematological and biochemical investigations, including measurement of 25-hydroxyvitamin D serum level, were performed for all participants. Pain intensity using a visual analog scale (VAS) and disease severity using the Western Ontario and McMaster Universities Arthritis Index was measured for all patients. Results: The mean age of patients and controls were 60±3.5 and 54±2.6 years, respectively. Vitamin D levels of patients and controls were 13±3.3 and 32±2.5, respectively. More severe disease and diseases with prolonged duration were associated with a lower vitamin D level, and low vitamin D levels were associated with high VAS and WOMAC. Conclusion: Vitamin D deficiency was associated with the development and the severity of knee OA as well as with the disease duration.