bluuebunny/crossref_metadata_2025 huggingface dataset:
Characteristics Performance of Newly Developed Parallel Plate Chamber in Electron Beams
Authors: Saminathan Sathiyan , Kannan Mageshraja , Ganesh K. M. , Mazarello James , Fernandes Rahul
Published: December 2023

Background:

To investigate the dosimetric performance of newly developed parallel plate chamber in electron beams.

Materials and Methods:

Rosalina Instruments India Private Limited (Mumbai, Maharashtra, India) has designed and fabricated PRATT2 parallel plate chamber. The various dosimetric characteristics, including pre- and post-irradiation leakage, stability, polarity effect, chamber response with bias voltage, dose linearity, dose rate effect, and chamber absorbed dose calibration, were performed for the developed chamber. The electron beam energies of 4, 6, 8, and 15MeV were used in this study.

Results:

The pre- and post-irradiation leakage of the developed chamber was within the acceptable limit. The chamber shows good stability over the electron beams used in this study. The maximum error in polarity effect was 0.7% for the developed chamber. The chamber shows the good linear response with dose, and its response is independent of the dose rate for all electron beams. The beam quality correction factor (kQ, Q0) was determined for the all electron beam energies, which was used for determination absorbed dose in electron beams.

Discussion:

The developed parallel plate chamber (PRATT2) is suitable for dosimetry of electron beams in radiotherapy. The chamber is cost effective and shows precise and reproducible response. The study carried out confirms that the newly designed and fabricated ion chamber can be used in the measurement of absorbed dose for therapeutic electron beams.
Deterministic Modeling for Radiation Attenuation-integrated Radon Transform in Emission Computed Tomography: Algorithm, Curve Fitting Analysis, and Introduction of Attenuation Hadamard Matrix
Authors: Qutbi Mohsen
Published: December 2023

Purpose:

The purpose of the study is to propose an algorithm to implement and visualize radiation attenuation-integrated Radon transform based on Beer–Lambert law during emission computed tomography simulation using a deterministic model and also to perform image analysis on resulting images.

Methods:

Two types of phantoms are designed: plain-disk phantom and patterned-disk phantom. The large disk is filled with an activity of 5 units and the smaller disks have 10 units of activity of 99mTc isotope as an emission map. Three transmission maps for patterned-disk phantom are created with uniform linear attenuation coefficient. Phantoms are scanned with 360° and 180° acquisition arcs. Then, using the algorithm designed, the exponential Radon transform is implemented. After that, the projections are back-projected and filtered to generate tomographic slices. Finally, all slices are analyzed using profile plotting and curve fitting. Moreover, an attenuation Hadamard matrix is provided to facilitate attenuation modeling.

Results:

The uniform intensity of activity in the phantoms is converted to a disk with progressively decreasing intensity from the periphery to the center in the tomographic slices. Similarly, the circles positioned more centrally appear less intense than those positioned in the periphery, despite all circles having equal activity. When the phantom is scanned in 180° arc, the circles closest to the camera are visualized more intensely. The profile curves of the slices generated by exponential Radon transformation are depicted as U-shaped in profile plotting and are fitted to a bi-exponential function with a near-perfect precision.

Conclusions:

The incorporation of radiation attenuation results in the development of more realistic models for quantification purposes.
Is the severity of alopecia areata associated with arterial stiffness?
Authors: Najafi Mohammad Taghi , Abedini Robabeh , Ghandi Narges , Seraji Shadab , Sadeghi Yasaman
Published: December 2023

Background:

This study aimed to evaluate the severity of alopecia areata (AA) associations with metabolic syndrome, body composition evaluated by bioimpedance techniques, and arterial stiffness based on pulse-wave velocity analysis.

Materials and Methods:

This cross-sectional study was conducted on patients referred to AA Clinic at Razi Hospital in 2021 and 2022. Patients with AA with the Severity of Alopecia Tool (SALT) score above 20% and receiving no systemic therapy were included. Patient demographic and clinical information, symptoms of metabolic syndrome, and bioimpedance factors were collected, and the relationship between disease severity, metabolic syndrome, and bioimpedance indicators was evaluated.

Results:

In this study, 59 patients were examined, with 26 (44.07%) being female and 33 (55.93%) being male. The mean age of the patients was 37.42 years (standard deviation [SD] =11.28). The severity of the disease was assessed using the SALT score, with the mean severity in terms of the percentage being 69.83% (SD = 28.57%). In the regression model, SALT score was independently related to the severity of vascular stiffness after adjusting for the effect of other variables (beta = 0.033, 95% CI = 0.009–0.057, P = 0.046). Moreover, SALT score was significantly related to metabolic syndrome after adjusting for the effect of other variables (OR = 1.035, 95% CI = 1.012–1.059, P = 0.002).

Conclusion:

This study found that AA severity is associated with a higher chance of having metabolic syndrome and arterial stiffness which may lead to cardiovascular diseases in patients with AA, and screening patients regarding cardiometabolic diseases is mandated.
Outcome evaluation of ECF, DCF, FOLFOX, and FLOT chemotherapy regimens as perioperative treatment in elderly patients with resectable gastric cancer; A retrospective comparative study
Authors: Forouhari Ali , Moghaddas Azadeh , Darakhshandeh Ali
Published: December 2023

Background:

The incidence of gastric cancer is known to be high in the elderly population. Identification of the best perioperative chemotherapy regimen is challenging in patients with resectable gastric cancer. In this study, we aimed to evaluate and compare the outcomes and safety of epirubicin, cisplatin, and 5-fluorouracil (ECF), docetaxel, cisplatin, and 5-fluorouracil (DCF), oxaliplatin plus 5-Fluorouracil and leucovorin (FOLFOX), and docetaxel, oxaliplatin, leucovorin, and 5-Fluorouracil (FLOT) chemotherapy regimens to identify the most appropriate treatment option for elderly patients with resectable gastric cancer.

Materials and Methods:

In this retrospective observational cohort study, data were extracted from the medical archives (2017–2021) of Omid Hospital, which is a tertiary oncology referral hospital in Isfahan, Iran. Patients with resectable gastric cancer, above 60 years of age, who were perioperatively treated with one of the mentioned chemotherapy regimens and met the inclusion criteria, were enrolled in this study. The survival parameters and safety profile of the regimens were evaluated and compared in this population.

Results:

A total of 63 patients were included in this study. The median follow-up period of the patients was 24 months (range, 7–51 months). The results of survival analysis revealed that the FLOT and DCF regimens were significantly associated with longer overall survival (OS) as compared to the other regimens (median OS: 38 and 33 months, respectively). Based on the results, the progression-free survival was longer in the DCF regimen (median: 24 months) compared to the other regimens; however, only the difference with the ECF regimen (median: 14 months) was significant. The results of Cox regression analysis showed no significant difference in the overall adjusted hazard ratio of mortality between the FLOT and DCF regimens (P = 0.802). The DCF and FOLFOX regimens accounted for the highest and lowest rates of adverse events (e.g., neutropenia and mucositis), respectively.

Conclusion:

Considering the higher rate of adverse events in the DCF group, besides the significant improvement of OS and the acceptable adverse event profile of patients treated with the FLOT regimen, it can be proposed that this chemotherapy regimen is the most appropriate treatment option for elderly patients with resectable gastric cancer.
Burnout among COVID-19 hospital-based contact tracers in Singapore: results of a mixed-method, cross-sectional multicentre study
Authors: Ng Ian Matthias , Wong Tzu-Jung , Yang Yong , Venkatachalam Indumathi , Sim Jean Xiang Ying , Wee Liang En , Liew Tau Ming , Boon Evelyn , Ng Tong Yong , Han Hwi Kwang , Tan Diana Yuen Lan
Published: December 2023

Introduction:

During the coronavirus disease 2019 (COVID-19) pandemic, contact tracers were under immense pressure to deliver effective and timely contact tracing, raising concerns of higher susceptibility to burnout. Our study aimed to determine burnout prevalence among hospital-based contact tracers and associated risk factors, so that interventions to reduce burnout risk could be formulated.

Methods:

One hundred and ninety-six active contact tracers across three hospitals within a healthcare cluster were invited to complete an anonymous online survey. To identify burntout, data such as demographics, work-related variables and contact tracing-related variables were collected using the Copenhagen Burnout Inventory. Associated factors were identified using multivariate statistics. Open-ended questions were included to understand the challenges and potential improvements through qualitative analysis.

Results:

A total of 126 participants completed the survey, giving a completion rate of 64%, and almost half of these participants (42.9%) reported burnout. Protective factors included being on work-from-home arrangements (adjusted odds ratio [OR] 0.22, 95% confidence interval [CI] 0.08–0.56), perception of being well supported by their institution (adjusted OR 0.25, 95% CI 0.08–0.80) and being married (adjusted OR 0.28, 95% CI 0.12–0.64). Risk factors included having an administrative role pre–COVID-19 (adjusted OR 3.62, 95% CI 1.33–9.83). Work-related burnout was related to being activated for more than 1 day in the preceding week (unadjusted OR 3.25, 95% CI 1.33–7.94) and multiple activations in a day (unadjusted OR 3.54, 95% CI 1.44–4.41). Biggest challenges identified by participants were language barrier (62.7%), followed by workflow-related issues (42.1%).

Conclusion:

Our study demonstrated burnout and other challenges faced by a team of mostly hospital-based administrative staff redeployed on a part-time basis to ensure timely contact tracing. To mitigate burnout, we recommend choosing staff on work-from-home arrangements and ensuring adequate manpower and rostering arrangements.
Characteristics and outcome of patients with anorexia nervosa on medical nutritional therapy: an institutional study with review of literature
Authors: Teo Denise Elizabeth Shi Yun , Teong Valerie Wei Ling , Ramachandran Rajeev , Lim Su Lin , Lin Charlotte Xianghui
Published: December 2023

Introduction:

Eating disorders (EDs) are debilitating mental illnesses that can lead to significant medical complications from malnutrition. Eating disorders are on the rise in Asia and the prevalence is expected to increase. The aim of this study was to understand the characteristics of local patients and evaluate our current inpatient nutritional rehabilitation protocol for anorexia nervosa (AN).

Methods:

Retrospective descriptive data were gathered from 47 patients diagnosed with AN. Patients with admissions were further stratified according to their nutritional management based on whether they were on the AN protocol or standard hospital care. Data on their rate of weight gain, length of stay and calorie prescription were collected.

Results:

Similar to previous studies, the majority of AN patients were female (96.7%). However, the age at presentation of AN in this study, as compared with previous local studies, had decreased (14 vs. 16 years). We also found that patients on the AN protocol were prescribed a higher amount of calories than those given standard care (2,700 vs. 2,317 calories). Patients on the AN protocol achieved a higher rate of weight gain per week (1.15 vs. 0.29 kg) and had a shorter length of hospital stay (23 vs. 36 days).

Conclusion:

Patients with AN appear to be presenting at a younger age. Medical stabilisation of AN patients can be achieved more quickly through a higher calorie inpatient AN treatment protocol. Future local studies examining actual calorie consumption, its effect on weight gain trajectory, severity of refeeding syndrome and time to remission will be beneficial.
The Artin component and simultaneous resolution via reconstruction algebras of type $A$
Authors: Makonzi Brian
Published: December 2023

This paper uses noncommutative resolutions of non-Gorenstein singularities to construct classical deformation spaces by recovering the Artin component of the deformation space of a cyclic surface singularity using only the quiver of the corresponding reconstruction algebra. The relations of the reconstruction algebra are then deformed, and the deformed relations together with variation of the GIT quotient achieve the simultaneous resolution. This extends the work of Brieskorn, Kronheimer, Grothendieck, Cassens–Slodowy, and Crawley-Boevey–Holland into the setting of singularities

\mathbb{C}^{2}/H

with

H \leq \mathrm{GL}(2, \mathbb{C})

and furthermore gives a prediction for what is true more generally.
Males and females with scleroderma: A comparative study in a Brazilian sample
Authors: Costa Matheus , Jorge Igor , Martin Patricia , Nisihara Renato , Skare Thelma
Published: December 2023

Objectives: This study aimed to evaluate the clinical and serological profile in systemic sclerosis (SSc) by comparing females and males.

Patients and methods: This retrospective study was conducted with 215 SSc patients (193 females, 22 males; mean age: 50.1±14.5 years; range, 16 to 88 years) between September 2005 and September 2020. Disease severity was calculated by the Medsger severity score. Males and females were compared for clinical and serological markers.

Results: Females more frequently had esophageal involvement (p=0.003), telangiectasias (p=0.03), and antinuclear antibodies (p=0.04). Males more frequently had fingertip scars (p=0.03), digital ulcers (p=0.006), and a worse median Medsger severity score (6 in males vs. 4 in females, p=0.05).

Conclusion: In the studied sample, males had more severe disease than females with greater repercussions in periferic circulatory system.
The evaluation of tibial nerve using shear-wave elastography and ultrasound in patients with systemic sclerosis: A cross-sectional study
Authors: Kaymaz Serdar , Yiğit Murat , Ufuk Furkan , Sarılar Burak , Karasu Uğur , Çobankara Veli , Sabir Nuran , Alkan Hakan
Published: December 2023

Objectives: The study aimed to evaluate stiffness and the cross-sectional area (CSA) of the tibial nerve (TN) using shear wave elastography (SWE) and ultrasound (US) and investigate the relationship of these with disease activity, quality of life, and severity of neuropathic pain in patients with systemic sclerosis (SSc).

Patients and methods: This cross-sectional study included 28 SSc patients (1 male, 27 females; mean age: 50±11 years; range, 28 to 67 years) and 22 age- and sex-matched healthy controls (4 males, 18 females; mean age: 48±6 years; range, 37 to 66 years) between March and April 2022. US and SWE were performed on the TN, and CSA and nerve stiffness were measured. The TN was examined by a radiologist, 4 cm proximal to the medial malleolus. A few days later, an evaluation was performed in the second session by a second observer to investigate inter-and intraobserver agreement. Interobserver agreement was evaluated using the intraclass correlation coefficient (ICC). The Scleroderma Health Assessment Questionnaire, European League Against Rheumatism European Scleroderma Trial and Research (EUSTAR) group activity index, and Douleur-Neuropathique 4 scores of the patients were evaluated. Correlations between the questionnaires and measurements of nerve stiffness and CSA were assessed.

Results: Patients with SSc had significantly higher stiffness and CSA values of the right TN compared to healthy controls (p<0.001 and p=0.015, respectively). The nerve stiffness values of the right TN were positively correlated with the EUSTAR activity index (p=0.004, r=0.552). The CSA of the left TN was larger in patients with SSc (21.3±4.9 mm2 ) than in controls (12.8±3.4 mm2 ), and the nerve elasticity was positively correlated with the EUSTAR activity index (p=0.001, r=0.618). The interobserver agreement was moderate to good for measuring stiffness and CSA of the TN (ICC were 0.660 and 0.818, respectively). There was a good to excellent intraobserver agreement for measuring stiffness and CSA of TN (ICC were 0.843 and 0.940, respectively).

Conclusion: The increased disease activity in patients with SSc is associated with TN involvement, which can be demonstrated by US and SWE.
La Giralda, 800 años en la historia, en el arte y en la vida de la ciudad de Sevilla
Authors: González García Pedro
Published: December 2023

Análisis y revisión historiográfica actualizada de los distintos periodos constructivos de la Giralda: islámico, medieval, renacentista, barroco y de los siglos XIX y XX. En todos ellos se insiste en las personalidades y mentalidades que influyeron en su fisonomía. Se concluye con una revisión de las diferentes artes plásticas: Arquitectura, Escultura, Pintura, Mobiliario, Orfebrería. Bordados, Estampación, Arte Popular, y recreaciones e interpretaciones de la torre en las que se ejemplifican los distintos tipos y usos del monumento sevillano
Mutual Grieving, Healing and Resilience in Sigrid Nunez’s The Friend
Authors: Vinczeová Barbora
Published: December 2023

The paper addresses the narrative of mutual healing, grieving and resilience in Sigrid Nunez’s novel The Friend. The aim of the article is to determine whether in the presented narrative shared trauma among different species leads to improved resilience of humans and animals, as well as whether a shared experience of grieving and healing is beneficial for both sets of beings involved. An overview of the healing process in humans and animals which takes place after trauma is provided. Although based on a work of fiction, this paper seeks to be a contribution to the field of trauma studies, highlighting the benefits and therapeutic value of human-animal relations and reflecting approaches in fiction.
Selling Austerity to the Public: Analysing the Rhetoric of the UK Government on its Welfare Cuts
Authors: Tihelková Alice
Published: December 2023

Over the past twelve years, the UK has seen a marked increase in poverty and economic inequality. While numerous factors have contributed to this situation, an undisputedly important role has been played by the continuous program of welfare spending cuts designed and executed by a series of Conservative governments. To alleviate the potential for the unpopularity of austerity measures, the Conservatives have attempted to put a positive spin on their policies by making a series of core claims emphasizing the beneficial effects of the welfare reform. Using the method of Critical Discourse Analysis (CDA), this paper examines these claims and offers a critique of each of them. In doing so, the research seeks to expose the use of traditional stereotypes (especially that of the “deserving” and “undeserving” poor) in the government’s rhetoric. The paper draws on a corpus of political speeches and media appearances of Conservative politicians, as well as on sociological reports and newspaper coverage. The analysis is principally focused on the two governments led by David Cameron, although some attention is also devoted to subsequent Conservative administrations.
Self-Education and Narrative Power in Emily Brontë’s Wuthering Heights: (Re)Discovering Marginal Women Characters
Authors: Mandici Madalina Elena
Published: December 2023

Despite the secure position of Emily Brontë’s Wuthering Heights (1847) in academic and popular culture, the novel may not seem the first choice for a work that features both conventionally appealing characters and reliable narrators as well as modern delineations of class, gender, and race. This study argues that in Wuthering Heights reading, writing, education, and learning resist a unified interpretation, but nonetheless can provide a compass for navigating its unwieldy narrative. In the novel, the landed gentry is above the law of state, and women are at all stages disadvantaged. These depictions come in a continuous social spectrum: the woman who annotates sacred books to write her own story and chooses the cultured gentry but denies her own rough, wild nature (Catherine I), the woman exposed to culture from the cradle who educates the illiterate in a reconciliatory educator-disciple matrimony (Catherine II), the housekeeper born into the servile classes who moves beyond the limits imposed by gentility and social segregation, and has exclusive access to all the personal and social histories embedded within Wuthering Heights (Nelly Dean).
Cats Can Be Dangerous to Your Relationships: Cats in the Fiction of Jim Grimsley
Authors: Trušník Roman
Published: December 2023

In the context of culture’s fascination with cats, the present article analyzes the use of felines in two pieces of fiction by the southern writer Jim Grimsley: the short story “The Cathouse Lovers” (1976) and his novel Comfort & Joy (1993 in German, 1999 in English). The two texts differ greatly in terms of the genre, period, as well as the role of cats in the story, yet both of them include the motif of cats that have a negative effect on the romantic and sexual relationships of their human protagonists.
Frustration, Boredom, and Fantasy: Augusta Webster’s “Circe”
Authors: Osinska Dorota
Published: December 2023

The present article examines how Augusta Webster’s dramatic monologue “Circe” (1870), represents the problem of women’s boredom, frustration, and fantasy through the reinterpretation of the mythological Greek enchantress Circe. The analysis offers a close reading of the text supported by philosophical, historical, and cultural notions of boredom. Webster’s poem functions as an intriguing commentary on how loneliness and hatred towards domesticity are accompanied by growing sexual frustration and even misandry. My reading proposes a fresh look at Webster’s work, incorporating a number of critical, mostly feminist, analyses of the poem. Indeed, Webster’s “Circe” acts as a provocative glimpse into the psycho-scape of a bored woman who gradually reveals her incessant desires for change and a perfect lover.
Gender Issues in Comfort Woman by Nora Okja Keller
Authors: Frizelová Barbora
Published: December 2023

Through an exploration of the comfort women system, this article analyzes how the female gender has been oppressed in history. It follows the story of Akiko, the main character of Comfort Woman (1998) by Asian American author Nora Okja Keller. Keller is one of the first authors to write about comfort women, gaining publicity for this issue. This article provides an examination of terms such as sex, gender, and gender issues. Certain concepts influencing American and Asian cultures and their stance towards gender are also analyzed, after which focus is placed on the portrayal of gender roles as illustrated in the novel. The article briefly mentions the history of the relationship between the United States and Korea. The characteristics of the comfort women system are described as well as the causes leading to its establishment such as patriarchy, Confucian traditions, and the exploitability of lower-class society. Additionally, the article highlights how the comfort women issue helped define feminist theory in the US and identifies the transnational nature of the issues involved.
Hubungan Karakteristik Pasien Hipertensi Dengan Perilaku Pencegahan Covid-19 Di Pelayanan Rawat Jalan Rumah Sakit Panti Rahayu Yogyakarta
Authors: Lola Panggah Pertiwi Hedwigis , Subiyanto Paulus , Ratnawati Emmelia
Published: December 2023

ABSTRAC

Background: Coronavirus disease (COVID-19) is an infectious disease caused by a new type of coronavirus and became an outbreak in Wuhan, China, in December 2019. Hypertension patients are the highest comorbidities because it will complicate the patient's condition. COVID-19 such as wearing masks, washing hands, maintaining distance and much more.

Objective: To determine the relationship of characteristics of hypertension patients (age, gender, education, occupation) with the prevention behavior of COVID-19 transmission in outpatient services Panti Rahayu Hospital Yogyakarta.

Methods: The method used is descriptive cross sectional with sampling accidental sampling technique and obtained by 32 respondents. The research instrument which used was questioner developed by the researcher and has been tested for validity, reliability.

Results: The results of data analysis, there is no relationship between the factors of age (P value: 0.170), gender (P value: 1.000), education (P value: 0.567) and employment (P value: 0.433) with Covid-19 prevention behavior in out patient Panti Rahayu Hospital, Yogyakarta.

Conculsion: From the results of the study, it was concluded that there is no relationship between the characteristics of hypertension patients and the prevention behavior of COVID-19 transmission. Hypertension patients are obliged to implement preventive behaviors for the transmission of COVID-19.

Keywords: hypertension, prevention of COVID-19
Hubungan Karateristik Pasien Daibetes Melitus Tipe 2 Dengan Perilaku Pencegahan Penularan Covid-19 Di Pelayanan Rawat Jalan Rumah Sakit Panti Rahayu Yogyakarta
Authors: Puji Lestari Monica , Subiyanto Paulus , Ratnawati Emilia
Published: December 2023

ABSTRAK

Latar Belakang: Coronavirus Disease 2019 (COVID-19) merupakan penyakit menular yang disebabkan oleh Coronavirus jenis baru. Penyakit ini diawali dengan munculnya kasus pneumonia yang tidak diketahui etiologinya di Wuhan, China pada akhir Desember 2019. Tanda dan gejala umum infeksi COVID-19 antara lain gejala gangguan pernapasan akut seperti demam, batuk dan sesak napas. Prevalensi diabetes hampir tiga kali lipat lebih tinggi pada pasien COVID-19 dengan kondisi yang buruk (16,2%) dibandingkan dengan mereka yang tidak dalam kondisi buruk (5,7%)

Tujuan: Mengetahui hubungan karakteristik pasien Diabetes Melitus Tipe 2 dengan perilaku pencegahan penularan COVID - 19 di Pelayanan rawat jalan Rumah Sakit Panti Rahayu

 

Metode: Penelitian ini menggunakan jenis deskriptif cross sectional  dilakukan pada populasi pasien Diabetes Melitus Tipes 2 dengan sampel sejumlah 33.  Populasi dalam penelitian ini adalah  pasien dengan kasus Diabetes Melitus Tipe 2 yang ada di layanan rawat jalan Rumah Sakit Panti Rahayu  sebanyak 39 responden. Sampel diperoleh 33 responden degan teknik accidental sampling. Instrumen penelitian  yang digunakan yaitu kuesioner. 

 

Hasil: Data karakteristik terbanyak adalah usia > 60 tahun (48,5%), jenis kelamin perempuan (66,7%), pendidikan dasar dan menengah (81,8%), pekerjaan degan tidak bekerja (51,5%) dan perilaku pencegahan penularan COVID-19 baik (81,8%) yang meliputi 3M baik (81,8%), peningkatan imunitas tubuh kurang (63,6%), sanitasi lingkungan dalam rumah baik (72,7%). Uji statistik menggunakan uji chi square dan uji alternatif uji fisher yang didapatkan hasil usia-perilaku (p value 0,232), jenis kelamin-perilaku (p value 1,000), pendidikan-perilaku (p value 1,000) dan pekerjaan-perilaku (p value 0,398)

Simpulan: Dari hasil penelitian disimpulkan bahwa tidak terdapat hubungan antara karakteristik pasien Diabete Melitus Tipe 2 dengan perilaku pencegahan penularan COVID-19.

 

Kata Kunci:Diabetes Melitus Tipe 2, Perilaku pencegahan penularan, COVID - 19
ARENQUES FRESCOS OU MEU ÚLTIMO DESEJO
Authors: Nascimento Carlos Arthur Ribeiro do
Published: December 2023

Para o homem medieval e particularmente para os membros de alguma ordem religiosa, a primeira e mais importante relação do ser humano é certamente com Deus. Não se deveria também esquecer que a expansão ibérica se deu “dilatando a fé e o império”, como diz Camões. Ora, a relação com Deus pode encontrar, sem dúvida, várias formas de realização. No entanto, a mais elevada de todas é a da experiência de Deus, do conhecimento dele como desconhecido, visto que tal experiência não seria de ordem conceitual mas por meio da predileção divina (caridade), que encontra uma indicação privilegiada na experiência do tato e do gosto.É dentro deste quadro que se propõe uma interpretação do conhecido desejo de Tomás de Aquino, em seus últimos dias, de comer arenques frescos. Será indicado o contexto do episódio na vida de Tomás e no ambiente cultural do século XIII.Palavras-chave: Tomás de Aquino, Conhecimento de Deus, Prazer, Muçulmanos, Último desejo.
'LAUDATO SI' E A SUSTENTABILIDADE
Authors: Geiser Rodolfo
Published: December 2023

Resumo

Este artigo procura refletir sobre o porquê da importância da encíclica Laudato Si’  do Papa Francisco e suas relações com a sustentabilidade. Trata-se de tema vasto e extremamente complexo. Possui incontáveis variáveis. Para expor o assunto, vamos efetuar simplificações, tentar criar um modelo de pensar e fazer algumas propostas para reflexão. Vamos seguir o convite do Papa: pensar diferente. Revolucionariamente. Sem a pretensão de estarmos corretos nessa exposição, mas com a certeza de abrir caminhos para ação.

Palavras-chave: Laudato Si’. Sustentabilidade. Caminhos para a ação.

 

Abstract

This paper provides a reflection on the importance of Pope Francis’s Laudato Si’ encyclical and its relationship with sustainability. This is a broad and extremely complex theme, with endless variables. In order to discuss this topic, simplification was required, a thinking model was created and some reflection proposals were made. Let us embrace the Pope’s proposal to think along different lines and break new ground. With no intention of providing a single correct version of the issues, this paper will definitely open up new pathways for action.

Keywords: Laudato Si’. Sustainability. Pathways for action.
DIGITALIZACIJA VN POSTROJENJA – KARAKTERISTIKE VLAN-A
Authors:   WSP - UK LIMITED BELGRADE, serbia, Mijušković Srđan
Published: December 2023

We are witnessing the increasing presence of information and telecommunication technologies in power plants. With the continuation of the digitalization of HV facilities up to the Process Bus level, the requirements that are set before the functionalities necessary for the successful operation of protection and control systems are becoming more and more complex. The exchange of information using Sampled Values (SV) - defined in part 9-2 of the IEC 61850 Standard - is a key aspect of the further development and implementation of digitized HV substations. Taking into account all the characteristics of SV, we realize that establishing a functional architecture of the Process Level system presents an extremely complex task, both from the aspect of time synchronization and the amount of data on the local area network (LAN). As a possible solution for data flow control in digitized HV facilities, it is necessary to understand the characteristics of VLAN (Virtual Local Area Network). The aforementioned segregation of network systems can also be used to increase computer security - Cyber security.
ISPADI TRANSFORMATORA U RTS 35/20 kV KNEŽEVO I MEĐUSOBNA INTERAKCIJA RAZLIČITIH KVAROVA U PRISUSTVU DISTRIBUISANE PROIZVODNJE
Authors:   DC “ELEKTROKRAJINA” STK. COMPANY -– MH ELEKTROPRIVREDA  REPUBLIKE SRPSKE, Katan Boris , Danojević Siniša ,   DC “ELEKTROKRAJINA” STK. COMPANY -– MH ELEKTROPRIVREDA  REPUBLIKE SRPSKE, Joldžić Srebrenko ,   DC “ELEKTROKRAJINA” STK. COMPANY -– MH ELEKTROPRIVREDA  REPUBLIKE SRPSKE
Published: December 2023

In year 2022 we noticed increased number of trips on transformer 35/20 kV which powers municipality Kneževo. SWY Kneževo has large share of distributed generation (about 15 MVA of small hydro on 35 kV and 1 MVA thermal cogeneration on 20 kV). Municipality is powered by transformer 4 MVA, 35/20 kV, with 20 kV neutral point grounded through resistor. Equipment in switchyard is technologically and generationally very different. We discovered that problem is dual, tripping because of overload and because of ground faults which weren't detected by protection on feeders. Combination of multiple factors lead to transformer overloads. Ground faults on 20 kV busbars weren't detected by existing electronic protection relays on feeders. Ground faults were discovered by ground resistor's protection. Power quality analysers ware used to record currents for 15 days and two feeders were discovered as potential culprits: Živinice and Progres. Feeder Živinice is protected by electronic relay in separate protection cabinet and feeder Progres is protected by microprocessor relay. Živinice had a couple of trips in period of recording while Progres never had any trips by ground fault. Cogeneration plant is on feeder Progres. Primary testing has showed that problem is on Živinice feeder. Direction of directional ground protection was rotated by 180° and it was caused by wrong wiring for 40 years and recent reconfiguration of grid brought it to spotlight.
ANALIZA OBRAČUNA UTROŠENE ELEKTRIČNE ENERGIJE ZA KORISNIKE PRENOSNOG SISTEMA KOD KOJIH SE MESTO PRIMOPREDAJE I MESTO MERENJA NE NALAZI NA ISTOM NAPONSKOM NIVOU
Authors:   JSC EMS BELGRADE, Jeremić Đorđe , Stanojković Predrag ,   JSC EMS BELGRADE, Milanović Nemanja ,   JSC EMS BELGRADE
Published: December 2023

When the point of handover and the meter point are not at the same voltage level, it is necessary to correct the meter point of data for the value of electricity losses from the point of handover to the point of meter point. The correction coefficient is determined based on the technical characteristics of the equipment, calculation of technical losses between the place of handover and the meter point for the average conditions of exploitation of the facility. On the examples of users of the transmission system of voltage level 110/X kV/ kV, where there are meter points at both voltage levels, an analysis of electricity calculation based on measured values and electricity calculation based on corrected measurement data was performed. The goal of the analysis is to establish the cost-effectiveness of the reconstruction of metering points based on the obtained results, as well as the criteria that would help to determine the priority objects in which it is necessary to reconstruct the metering points.
ANALIZA KVAROVA SA PREKIDOM PROVODNIKA U PRENOSNOJ MREŽI I PREPORUKE ZA PODEŠENJE ZAŠTITE
Authors:   ELEKTROMREŽA SRBIJE AD, Ostojić Mladen , Mamlić Goran ,   ELEKTROMREŽA SRBIJE AD, Toholj Jana ,   ELEKTROMREŽA SRBIJE AD
Published: December 2023

In the paper, asymmetric modes are considered in the transmission network that arise as a result of the conductor breakage on overhead lines. During the research, analytical equations describing the specified type of series fault are derived. In addition, a disturbance with a conductor break is shown that occurred on an overhead line of 110 kV voltage level, and was observed in TS Sombor 3. The specified type disturbance is specific in that the conductor break occurred on an overhead line that is not directly connected to TS Sombor 3, and remained unnoticed for a long period of time. Based on the analysis of the existing protection settings and the current load of the overhead lines connected to TS Sombor 3, measures were proposed to improve the settings of the existing protection devices.
The Influence of Current Ratio, Total Asset Turnover, Return on Assets, Company Size and Debt to Equity on Profit Growth in Property and Real Estate Companies Listed on the Indonesian Stock Exchange for the 2016 - 2020 Period
Authors: Wulandari Putri , Elwisam  , Digdowiseiso Kumba
Published: December 2023

The purpose of this study was to analyze the effect of the Current Ratio (CR), Total Assets Turnover (TATO), Return On Assets (ROA), Company Size (SIZE), and Debt to Equity Ratio on Profit Growth in Property and Real Estate Companies during the period 2016-2020. The population of this study is property and real estate companies listed on the Indonesia Stock Exchange for the period 2016 – 2020. Sampling was carried out by purposive sampling consisting of 15 companies. The data collection technique used is documentation. By using the Eviews 9 program, the research data were analyzed using a panel data regression approach with a significance level of 0.05. This analysis shows that the variables CR, TATO and ROA have a positive and significant effect on Profit Growth. Meanwhile, Company Size (SIZE) has a negative and significant effect on Profit Growth and DER has a positive and insignificant effect on Profit Growth.
Sistem Pakar Diagnosa Penyakit Burung Merpati Dengan Metode Certainty Factor
Authors: Adi Saputra Galih Candra , Hartatik Hartatik
Published: December 2023

Pengaruh perkembangan teknologi komputer yang pesat saat ini telah menjamah berbagai bidang, seperti halnya pada bidang peternakan. Pada bidang peternakan sendiri memerlukan seorang ahli yang dapat membantu para pemula dalam menyelesaikan masalah. Dengan teknologi komputer saat ini kecerdasan manusia bisa dipadukan menjadi sebuah sistem yakni sistem pakar. Sistem pakar dapat membantu seorang yang bukan ahli memiliki kecerdasan yang sama dengan dibantu melalui sistem pakar tersebut. Pada penelitian ini peneliti akan merancang sebuah sistem pakar yang dapat membantu para pecinta burung merpati dalam merawat burung peliharaanya. Penelitian ini menggunakan metode certainty factor untuk menentukan keputusan yang diambil dalam permasalahan yang ada. Serta menggunakan metode penelitian Systems Development Life Cycle (SDLC) dalam penelitiannya. Dengan memanfaatkan dua metode tersebut akan menghasilkan sistem pakar yang baik guna mempermudah para pecinta burung merpati dalam merawat burung peliharaannya. Penelitian ini menghasilkan sistem pakar berbasis web dengan menggunakan metode certainty factor dalam menentukan keputusan pakar. Hasil dari pengujian sistem pada penelitian ini memperoleh ketepatan 90.9% atau bisa dikatakan layak oleh para pakar. Penelitian ini belum sempurna, maka bagi peneliti selanjutnya dapat merancang sistem pakar penyakit burung merpati menggunakan metode lain dan juga berbasis operasi sistem lainnya.
Penerapan Algoritma Fuzzy Sugeno Dalam Menentukan Keputusan Guru Berprestasi Di SMKS Roudlotun Nasyiin
Authors: Restyo Nugroho Deny , Harliana Harliana , Fauzan Abd Charis
Published: December 2023

Kualitas sumber daya manusia merupakan salah satu faktor dalam meningkatkan produktivtas kinerja suatu lembaga. Oleh karena itu, diperlukan sumber daya manusia yang mempunyai kompetensi tinggi karena keahlian atau kompetensi akan dapat mendukung peningkatan prestasi kerja guru. Penelitian ini bertujuan untuk menentukan guru berprestasi di SMK Roudlotun Nasyiin Berat Kulon dengan menggunakan algoritma Fuzzy Sugeno. Algoritma ini dipilih karena mampu membantu mengatasi ketidakpastian dalam pengambilan keputusan mengenai prestasi guru berdasarkan sejumlah aturan. Variable yang digunakan dalam penelitian ini adalah kehadiran, pemahaman materi, dan prestasi dengan himpunan fuzzy berupa baik, cukup, dan buruk. Berdasarkan hasil penelitian didapatkan bahwa Fuzzy Sugeno cukup mampu memberikan rekomendasi untuk guru-guru yang berprestasi dengan rata-rata akurasi dihasilkan diatas 75%.  Pengujian sistem dilakukan dengan membandingkan hasil yang didapatkan dengan dataset asli
Belediye Çalışanlarının Engelli Bireylere Yönelik Hizmet Sunumunda Bireysel Tutumlarının İncelenmesi: Afyonkarahisar Belediyesi Çalışanları Örneği
Authors: BOZTEPE Özlem , MECEK Mehmet
Published: December 2023

Bu araştırma, engellilerin içinde yaşadığı kentsel hizmetlere erişiminde birincil derecede kamu hizmeti sunan belediyelerin, ilgili hizmet sunumunda, “çalışan odağında” bireysel tutumlarının incelenmesi ve uygulanması gereken hizmet politikalarının araştırılması amacıyla hazırlanmıştır. Araştırmanın evreni, Afyonkarahisar Belediye Başkanlığı’nda görev yapan kamu görevlileridir. Araştırmanın örneklemini de 194 kamu görevlisi oluşturmaktadır. Araştırmada nicel araştırma yöntemlerinden “tarama yöntemi” kullanılmıştır. Bu kapsamda “kesitsel tarama” ve “ilişkisel tarama” tekniklerinden yararlanılmıştır. Veri toplama aracı olarak anket formundan yararlanılmıştır. Araştırmada elde edilen verilerin analizleri için SPSS 22.0 programı kullanılmıştır. Bu kapsamda veriler düz ve çapraz tablolar çıkarılarak frekans dağılımı ve yüzdeler şeklinde ifade edilmiştir. Veriler araştırma amaçları esas alınarak analiz edilmiş ve özdeş yorumlarla desteklenmiştir. Araştırmada başta belirtilen amaca uygun olarak geliştirilen hipotezleri test etmek üzere Bağımsız Örneklem T-Testi (Independent Sample T-Test) ve Tek Yönlü Varyans Analizi (ANOVA) yöntemleri kullanılmıştır. Belirlenen hipotezlerin test edilemediği durumlarda ise; frekans tabloları, karşılaştırmalı tablolar, aritmetik ortalama tabloları gibi betimleyici istatistik yöntemleri kullanılmıştır. Araştırma sonucunda, belediye çalışanlarının engelli bireylere yönelik genel tutumlarının olumlu yönde olduğu tespit edilmiştir. Araştırmada belediye çalışanlarının engelli bireylere olan yaklaşım ve tutumlarının iyileştirilmesi amacıyla tespit edilen sorun ve eksikliklere yönelik çözüm önerileri sunulmuştur.
PERCEPTION OF GREEN INFRASTRUCTURE SYSTEMS: GREEN WALLS AND GREEN ROOFS
Authors: Nevárez-Favela María Magdalena , García-Albarado J. Cruz , Quevedo-Nolasco Abel , López-Pérez Adolfo , Bolaños-González Martin Alejandro
Published: December 2023

Integrating green walls (GWs) and green roofs (GRs) into urban areas enables several sustainable development objectives to be met. However, there is little research on the aesthetic perception and environmental and psychological benefits that users assign to these greening systems. Therefore, this paper evaluated the perception towards these two green infrastructures, GWs and GRs. The research was conducted via the Internet through a semi-structured survey with Likert scale questions, with a total of 243 participants. The results revealed that approximately 90 % of the participants have a positive perception of GWs and GRs. The psychological and environmental benefits of greening in urban environments are recognized, such as creating habitats for small species, reducing stress, and improving mood, among others. Some significant differences were seen in some socioeconomic aspects, such as age, gender and educational level. Women showed a tendency to find calm when in contact with plants, while the tendency for men is more neutral. Participants with a lower educational level, secondary school and a technical career, do not fully agree that nature positively affects their mood. In general, green walls were found to be preferred to green roofs; however, it is suggested to consider incorporating more colors, flowers and a greater variety of plants to improve the aesthetics of these structures.
Treatment of Skin Oncological Disease Using an Immunosuppressive Medication
Authors:   Clinic for Dermatology and Sexually Transmitted Diseases. Riga 1st Hospital. LV 1001, 5 Bruninieku Str., Riga, Latvia, Department of Dermatovenereology. Riga Stradins University. LV-1007, 16 Dzirciema Str., Riga, Latvia, Mikazans Ingmars
Published: December 2023

Skin cancer or non-melanoma malignant formations, as well as melanomas, are recorded in more than 2-3 million people every year. The most important cause of the occurrence of this disease is the effect of UV radiation on damaged areas of the skin, birthmarks, or sensitive skin (light, capable of burning). Dermatoscopy is one of the most important methods for determining the stage of tumor development, and the simplest method of treatment in the initial stages is the use of immunosuppressive agents that reduce the work of the immune system by preventing the formation of antibodies.
Managing Challenges in a Symptomatic Patient with Moderate Pulmonary Stenosis: A Case Report
Authors:   Department of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Hasanuddin, Makassar 90245, Indonesia, Utama Armyn Andi Alief
Published: December 2023

Introduction: Pulmonary stenosis is a common form of obstruction in the right ventricular outflow tract, characterized by the narrowing of the pulmonary valve, which results in obstructed blood flow. Case Presentation: A 17-year-old female presented with recurring shortness of breath, chest pain, and palpitations, especially during physical activity. On examination, a grade III/VI continuous murmur was heard at the upper left sternal border. Echocardiography confirmed moderate pulmonary valve stenosis, a left-to-right patent ductus arteriosus (PDA), and mild to moderate pulmonary regurgitation.
COVID-19 y la Mentalidad Universitaria: Un Viaje Prospectivo a través de las Creencias y Actitudes en relación con la Vacunación
Authors:   Departamento de Ciencias Sociales y Humanas. Universidad Simón Bolívar, Barranquilla, Atlántico / Colombia, Díaz Pérez Anderson
Published: December 2023

Se investigaron las creencias y actitudes de estudiantes universitarios sobre la vacunación contra la COVID-19 y su influencia en la decisión de vacunarse. Se identificaron múltiples factores que afectan estas creencias, como la información recibida, experiencias personales, confianza en autoridades de salud y comunicación pública. Las actitudes también se ven influenciadas por la percepción del riesgo y la importancia de la vacuna. Objetivo: Analizar las creencias y actitudes en torno a la inmunización de la COVID-19 en los estudiantes universitarios. Metodología: Estudio descriptivo de corte transversal con componente correlacional. La población fue de 15000 estudiantes universitarios y se utilizó un muestreo aleatorio para encuestar a 115 participantes. Se empleó un cuestionario autoadministrado en formato de escala de Likert.
Effect of Silicone Rubber/Polyvinyl Alcohol /Zirconium Oxide Compound on Mesenchymal Stromal Cells
Authors:   Department of Neurosurgery – Dr. Soetomo General Academic Hospital, Surabaya, East Java, Indonesia. Faculty of Medicine - Universitas Airlangga, Surabaya, East Java, Indonesia, Reza Arifianto Muhammad
Published: December 2023

Objective: This study aimed to conduct a cytotoxicity test in determining the viability and proliferation profile for novel material of silicone rubber/polyvinyl alcohol (PVA) with or without Zirconium oxide on mesenchymal stromal cell culture. Methods: An in vitro study was carried out on adipose-derived mesenchymal stromal cell culture. Samples were divided into five groups: control, silicone rubber/polyvinyl alcohol (PVA) without Zirconium oxide, silicone rubber/polyvinyl alcohol (PVA) with Zirconium oxide 1 %, 3 %, and 5 %. Each group contained 2×105 seeded MSCs/well stained with MTT for its viability. For proliferation, MTT staining was performed on days 1, 3, and 5 to assess the trend of the percentage of the living cell. Statistical analysis was conducted using ANOVA, or the Kruskal-Walli’s test with a CI of 95%.