bluuebunny/crossref_metadata_2025 huggingface dataset:
Spatial Patterns of Urban Green-Blue Spaces and Residents’ Well-Being: The Mediating Effect of Neighborhood Social Cohesion
Authors: Wang Xinrui , Ouyang Libin , Lin Jian , An Pengfei , Wang Wanjing , Liu Lin , Wu Longfeng
Published: July 2023

Urban green-blue spaces (UGBS) can benefit residents’ well-being through multiple pathways. Previous studies have confirmed that the quantity and composition of UGBS can promote neighborhood social cohesion, which subsequently contributes to residents’ physical and mental health. However, there has been little attention paid to the spatial patterns of UGBS in such relationships. This study adopted landscape pattern indexes to characterize the spatial patterns of UGBS and explored the mediation effect of neighborhood social cohesion between the spatial patterns of UGBS and residents’ well-being, measured by self-rated health (SRH) and happiness. Partial Least Squares Structural Equation Model (PLS-SEM) was used for analyses with data obtained from the 2018 Shandong Provincial Social Survey Questionnaire (SGSS), which included 773 selected residents in urban areas. The results indicated that (1) there was a mediation effect of neighborhood social cohesion between the spatial patterns of UGBS and residents’ SRH and happiness; (2) the aggregation and diversity of UGBS had greater impacts on enhancing neighborhood social cohesion than the size, complexity, and fragmentation; (3) the aggregation and diversity of UGBS had indirect effects on improving happiness and SRH, and the aggregation of UGBS had a direct positive effect on SRH. By focusing on the spatial patterns of UGBS and neighborhood social cohesion, this study extends current debates on the pathways among UGBS, social cohesion, and public health. Urban planning strategies were proposed to increase the benefits of UGBS in urban areas.
Fixed-Time Adaptive Chaotic Control for Permanent Magnet Synchronous Motor Subject to Unknown Parameters and Perturbations
Authors: Yao Qijia , Jahanshahi Hadi , Bekiros Stelios , Liu Jinping , Al-Barakati Abdullah A.
Published: July 2023

It is well known that the permanent magnet synchronous motor (PMSM) exhibits chaotic characteristics when its parameters fall within a certain range, which can lead to system instability. This article proposes an adaptive control strategy for achieving the fixed-time chaotic stabilization of PMSM, even in the presence of unknown parameters and perturbations. The developed controller is synthesized by combining a parametric adaptive mechanism with a fixed-time control technique. The stability analysis demonstrates that the system states under the developed controller can converge to small neighborhoods around the equilibrium point within a fixed time. Thanks to the adoption of the parametric adaptive mechanism, the developed controller is not only insensitive to unknown parameters but also robust against perturbations. Finally, simulated studies are conducted to verify and emphasize the effectiveness of the developed control strategy.
Control Factors for the Equilibrium Composition of Microbial Communities in Open Systems: Theory and Experiments
Authors: Degermendzhi Andrey , Abakumov Alexander
Published: July 2023

The present paper is a summary of the authors’ theoretical and experimental research dealing with the patterns of stable equilibrium coexistence of microbial populations in flow systems interacting through specific density-dependent growth regulators (RFs). The discovered “paradoxical” lack of dependence of the background steady-state levels (concentrations) of RFs on their input values is confirmed experimentally and theoretically through the introduced sensitivity coefficients. This effect has been termed “autostabilization” of RFs. An important theorem (formula) of “quantization” suggesting the integer value of the sum of all sensitivity coefficients, which is equal to the difference between the number of RFs and the number of populations of one trophic level, has been proven. A modification of the “quantization” formula for an arbitrary trophic web is shown. A new criterion for intra- and inter-population microbial interactions for RFs is proposed—the response of growth acceleration to a perturbation in population size. This criterion makes it possible to quantify interspecific complex relationships, which has been previously impossible. The relationship between the new coefficients of inter-population interactions and the accuracy of model verification has been shown theoretically. Based on this criterion and the autostabilization effect, a method for experimental search for unknown RFs is proposed.
Numerical Reconstruction of a Space-Dependent Reaction Coefficient and Initial Condition for a Multidimensional Wave Equation with Interior Degeneracy
Authors: Sidi Hamed Ould , Zaky Mahmoud A. , De Staelen Rob H. , Hendy Ahmed S.
Published: July 2023

A simultaneous reconstruction of the initial condition and the space-dependent reaction coefficient in a multidimensional hyperbolic partial differential equation with interior degeneracy is of concern. A temporal integral observation is utilized to achieve that purpose. The well-posedness, existence, and uniqueness of the inverse problem under consideration are discussed. The inverse problem can be reformulated as a least squares minimization and the Fréchet gradients are determined, using the adjoint and sensitivity problems. Finally, an iterative construction procedure is developed by employing the conjugate gradient algorithm while invoking the discrepancy principle as a stopping criterion. Some numerical experiments are given to ensure the performance of the reconstruction scheme in one and two dimensions.
Special Issue “Probability Theory and Stochastic Modeling with Applications”
Authors: Badía Francisco Germán , Berrade María D.
Published: July 2023

This Special Issue (SI), titled “Probability Theory and Stochastic Modeling with Applications”, is concerned with the theory and applications of stochastic models [...]
Spiritualizing Anarchism, Making Spiritual Practices Anarchistic
Authors: Losoncz Mark
Published: July 2023

This article not only mentions spiritual anarchism nominally, as do so many previous articles, but tries to define it as precisely as possible. The definition assumes that the self itself can be a source of unjustifiable authority and a limitation to freedom, and that spiritual anarchism is nothing more than being open to that which transegoically transcends our narrow perspective. The article critically revisits previous overviews of spiritual anarchism, and itself proposes to take into account traditions that have been neglected. Finally, the article reverses the approach; that is, it considers how some of our spiritual practices can be made more anarchistic, including meditation, the psychedelic experience and the mystical experience.
Non-Contact Real-Time Measurement of Refractive Index of Flowing Liquid Based on Optical Coherence Tomography
Authors: Fu Hongbo , Gao Weijian , Lin Zixin , Zeng Zhemin , Shi Wen , Zhang Jian
Published: July 2023

The refractive index (RI) is one of the liquid’s most important physical parameters of liquid. The change of RI usually indicates the change of liquid properties, and this relation leads to broad application. This paper proposes a method based on optical coherence tomography (OCT) to measure the RI of liquid in real time. A series of targeted image-processing techniques play a vital role in this method. Benefiting from the advantages of OCT, this method does not require the operators to come into direct contact with liquids. Moreover, the principles and techniques adopted in this method imply that the measuring range of RI of unknown liquids is unlimited. The effectiveness of this method is validated by the experiment measuring the RI of sucrose liquids with gradient concentration. Another experiment thoroughly verifies this method’s feasibility in predicting sucrose concentration based on real-time measured RI. This simple and easy proposed method indicates an immense potential application prospect in the industry and scientific research.
Solar-Assisted Monetization of Municipal Solid Waste
Authors: Aldamigh Eman , Banerjee Sarbajit , El-Halwagi Mahmoud M.
Published: July 2023

Municipal solid waste (MSW) is a significant resource, especially for biomass-based monetization. In addition to its economic potential, it can also provide an effective pathway for decarbonization in the energy and chemical sectors. In this work, MSW monetization is coupled with the solar-assisted generation of “green” hydrogen and oxygen via electrolysis. The dual utilization of electrolysis-produced hydrogen and oxygen offers several advantages, including the reduction in the carbon footprint, the tunability of the characteristics of synthesis gas (syngas) to conform to the values needed for the manufacture of various chemicals, and the reduction in the overall cost compared to systems focusing on hydrogen generation only. A superstructure is developed to represent the configurations of interest and serve as a basis for formulating an optimization program that can be solved to identify the optimal design and operating strategies. A multi-period optimization formulation is developed to identify the maximum profit subject to the various modeling equations and constraints. The environmental considerations are addressed using the ɛ-constraint method by iteratively varying carbon footprint cuts. A case study is solved for the City of Jeddah, and the results assess the tradeoffs of various design and operating strategies, their impact on profitability, and their environmental impact.
Advance care planning among older adults of Moroccan origin: an interview-based study
Authors: Demirkapu Hakki , Hajji Redouan , Chater Brahim , De Maesschalck Stéphanie , Van de Block Lieve , De Vleminck Aline , Devroey Dirk
Published: July 2023

Background

Advance care planning (ACP) is rare among ethnic minorities for social, cultural, and religious reasons.

Aim

To explore advance care planning–related knowledge, experience, and perspectives among adults aged ≥65 years with Moroccan backgrounds in Belgium.

Method

Semi-structured interviews were conducted in Darija (Moroccan Arabic). GPs in Brussels and Mechelen recruited participants. Data were analysed qualitatively using a combination of inductive and deductive thematic analysis techniques.

Results

The 25 interviewees (average age 74 years) lacked ACP knowledge and had not discussed it with healthcare professionals. They had discussed burial and residential care wishes with relatives. After a brief explanation, most interviewees did not find ACP useful, mainly for religious reasons. After more extensive explanation with specific examples, they had fewer religious objections and were more willing to have ACP discussions with their GPs and/or relatives. The mentioned facilitators were GPs’ provision of information, children’s involvement in ACP discussions, and the desire to not be dependent on children. Barriers were a lack of knowledge, procrastination due to good health, lack of organization, and taboos regarding the discussion of illness and death, trust in one’s children to take over care and make decisions, and fear of worrying one’s children.

Conclusion

Despite an initial lack of knowledge about ACP, many older adults with Moroccan backgrounds were willing to talk about it after receiving information in their native language. GPs should facilitate ACP discussions for these patients, paying attention to individual needs and preferences.
The diabetes annual review in a postal box: a qualitative study exploring views of people with diabetes
Authors: Colley Jack , Dambha-Miller Hajira , Price Hermione
Published: July 2023

Background

People with diabetes who do not attend their annual review appointments often have poorer glycaemic control and increased complication rates. A postal kit for self-collection of blood tests, urine samples, and anthropometric data may facilitate remote annual reviews and improve uptake.

Aim

To explore views on a postal kit for annual review among people with diabetes and to collaborate with people living with diabetes to design and expand the scope of an annual review postal kit.

Method

We conducted semi-structured interviews and focus groups with adults with type 1 and type 2 diabetes. Purposive sampling was used to ensure 50% of study invites went to infrequent attenders of annual review appointments. Transcripts were collated and analysed thematically.

Results

Twenty-two participants took part, including nine infrequent attenders. All infrequent attenders and the majority of regular attenders responded positively to a postal kit, with convenience being the most prominent value described. Concerns raised related to personal capability of self-collection and the accuracy of results. Participants were asked for suggestions to improve the kit. The most common themes related to communication; participants wanted clearer information regarding the purpose of each test; they wanted feedback of their results through either a website or app with tailored advice for each result; and they wanted to utilise the kit to communicate their priorities for discussion at future consultations.

Conclusion

Postal kits for annual reviews were well-received by people living with diabetes. Designed well, they have the potential to overcome far more than just the physical barriers to annual review attendance.
A concept mapping approach to assess factors influencing the delivery of community-based salon interventions to prevent cardiovascular disease and breast cancer among ethnically diverse women in south London
Authors: Zaman Maham , Goff Louise , L’Esperance Veline , Karamanos Alexis , de Vale Marjorie Lima , Ayis Salma , Curcin Vasa , Durbaba Stevo , Molokhia Mariam , Harding Seeromanie , Mernagh-iles Ashlyn
Published: July 2023

Background

In the UK, women from ethnically diverse and socioeconomically deprived groups are at increased risk of underdiagnosis of cardiovascular disease (CVD) and low uptake for breast cancer screening. Raising awareness for CVD and breast cancer screening in partnership with salons can improve early detection, management and uptake of screening facilitating women and the NHS.

Aim

To explore the perceptions of hair and beauty professionals in the UK on factors that could influence the ability of salons to promote a culturally adapted educational intervention to improve CVD and breast cancer awareness and screening.

Method

Concept mapping is a multi-stage mixed methods participatory approach. Snowball sampling and dissemination of study information (online and face-to-face) among salon staff nationally was conducted. Participants were given a focus prompt ‘What would be some factors that can influence the ability of salons to deliver this service?’ and required to generate statements in response. Statements will be sorted into categories based on similarity and rated for importance and feasibility. Concept maps using multidimensional scaling and hierarchical cluster analyses will be produced.

Results

A total of 19 participants participated in the first stage. We will report on statements generated by participants, statement clusters and ratings for importance and feasibility. This will be depicted in a Go-Zone map that will show statements simultaneously rated in both importance and feasibility.

Conclusion

Participatory approaches can support the development of educational community-based interventions aiming to establish partnerships between community assets and health systems for CVD and breast cancer awareness and prevention.
Change Management in the Irish Defence Forces during Technological Change
Authors: Hegarty Paul
Published: July 2023

Extant literature fails to address change management in the military during technological change. Few researchers have examined how military organisations, undergo change and what, if any, processes do they use to manage this change. As such, whether change management processes are found to have a positive impact on military organisations or not, the extant literature in the sociology and military domains are being added to by the findings of this research. The aim of this paper is to determine if the Irish Defence Forces would benefit from the introduction of change management processes when implementing new technological systems. The extant theory has neglected to examine the application of change management processes in military organisations, a shortcoming this paper addresses. The research draws on semi-structured interviews undertaken with military and civil servant professionals from the Irish Defence Forces and the Department of Defence. A primary outcome identified the urgent need for the Irish Defence Forces to develop and implement a change management process for managing technological change. The current ‘ad-hoc approach’ which relies on key personnel highlights the lack of competence which exists at the leadership level and is further exacerbated by the personnel rotation policy currently used in the Irish Defence Forces, thereby having a detrimental impact on organisational efficiency. The study is significant as it informs theoretical understanding of change management processes by introducing a focus on the Irish Defence Forces, hitherto lacking, and informs the understanding of organisational change in a military organisation. Finally, the combination of the theoretical and empirical research contributes to the extant body of knowledge.
Integrating ChatGPT with Virtual Reality and Augmented Reality Technology in Teaching Biology at High Schools in Vietnam
Authors: Nguyễn Phương , Cao Linh , Trương Hana
Published: July 2023

This paper explores the potential of integrating ChatGPT, a language model developed by OpenAI, with Virtual Reality and Augmented Reality technologies in the context of high school biology education in Vietnam. The combination of these technologies has the potential to create immersive and interactive learning experiences, enhancing students' engagement and understanding of biological concepts. We discuss the benefits and challenges of connecting ChatGPT with VR/AR technology and propose a framework for their integration in biology teaching at high schools in Vietnam. Furthermore, we highlight the implications of this innovative approach for biology education in Vietnam and suggest future research directions.
Data collection of Methane and its challenges
Authors: Sun Weirong
Published: July 2023

How to collect methane is very important.
Emulating a Startup in a University - Everything but the Code
Authors: Wasserman Tony
Published: July 2023

 This paper describes a series of courses in the MS program in Software Management at Carnegie Mellon’s Silicon Valley campus. Students identify product ideas and form 4-5 person teams around their ideas, working through them for two semesters. The class covers everything from ideation of product ideas through financial models for the envisioned company, including identification of the pain points faced by prospective users, the target market, customer validation of the product ideas, creation of a product roadmap, competitive analysis, estimation of engineering effort, strategies for marketing and sales, and financial models. This paper emphasizes those aspects of the courses related to product definition and product strategy. 
The Role of AI on 6G MAC
Authors: Valcarce Rial Alvaro , Kela Petteri , Mandelli Silvio , Viswanathan Harish
Published: July 2023

With advances in devices and other technologies, the demand for immersive experiences that seamlessly blend the digital and physical worlds will be significant by the end of the decade. To support these, 6G networks will need to deliver unprecedented capacity, low latency, energy efficiency, and cognitive capabilities to manage vast radio resources. The potential of Artificial Intelligence (AI) to enhance the physical layer and reach these goals has been demonstrated in previous works, and now this paper explores the frontiers of Machine Learning (ML) on the wireless Medium Access Control (MAC) layer. ML techniques can further enhance the native Artificial Intelligence Air Interface (AI-AI) envisioned for 6G. This roadmap paper navigates recent research on AI-driven MAC functions such as resource allocation, random access, Adaptive Modulation and Coding (AMC), power control, protocol learning, Channel State Information (CSI) reporting, Hybrid Automatic Repeat Request (HARQ), and Multi-RAT Spectrum Sharing (MRSS).
Perubahan Histopatologis Sel Epitel Midgut Larva Nyamuk Aedes aegypti Akibat Paparan Insektisida Nabati
Authors: Anggraini Dwi , Sari Monica Puspa , Susilowati Rina Priastini
Published: July 2023

Nyamuk Aedes aegypti merupakan vektor utama penyakit Demam Berdarah Dengue (DBD). Berbagai upaya pencegahan dilakukan untuk menurunkan populasi nyamuk Aedes aegypti. Salah satunya dengan menggunakan insektisida baik sintetik maupun organik. Bioinsektisida menjadi alternatif yang banyak digunakan saat ini karena lebih aman terhadap manusia, hewan dan lingkungan. Larvasida merupakan salah satu bentuk insektisida yang menyerang tempat perindukan nyamuk di air. Larvasida bekerja dengan berbagai mekanisme dan menyerang berbagai target organ termasuk midgut larva. Berdasarkan beberapa penelitian, insektisida nabati terbukti menyebabkan sel epitel midgut larva menjadi lisis, berubah bentuk, vakuolisasi sitoplasma dan terlepas dari membran basal. Membran peritrofik, mikrovili dan brush border mengalami kerusakan parsial maupun total. Perubahan histopatologis sel epitel midgut larva Aedes aegypti ini disebabkan oleh senyawa metabolit baik tunggal maupun kombinasi yang terdapat dalam ekstrak tanaman.
Microbial profile of ultrasonic cleaner water
Authors: Wijaya Esther , Indrajanti Mirza , Nila Seri , Sharon Jesslyn , Sulistyorini J. FR
Published: July 2023

It is necessary to clean glasses regularly. Glasses are often dirty due to attached dusts and contaminated microbe. Ultrasonic cleaner is often used effectively to clean the glasses. Therefore, the ultrasonic cleaner water contains contaminated microbe from glasses. This study aimed to identify bacteria and fungi yeast in the used ultrasonic cleaner water. For this study, glasses were cleaned with ultrasonic cleaner. Then, its water is inoculated at 3M Petrifilm for Escherichia coli, Staphylococcus aureus, and Candida albicans. The results showed that the most frequent Staphylococcus aureus and Candida albicans in the ultrasonic cleaner water. Escherichia coli was not often found.  Since both of microbe, S. aureus and C.albicans are flora normal of the skin, it can be concluded that glasses are contaminated with these flora normal of the skin
Efektivitas Antioksidan Tanaman Faloak (Sterculia quadrifida)
Authors: Dewajanthi Anna Maria , Santosa Felicia Carlista Ventura , Rumiati Flora , Winata Handy
Published: July 2023

Sterculia quadrifida atau tanaman faloak banyak digunakan oleh masyarakat di Provinsi Nusa Tenggara Timur untuk mengobati berbagai penyakit di Provinsi Nusa Tenggara Timur (NTT). Kulit batang pohon faloak diyakini dapat meningkatkan stamina, mengobati disfungsi hati, bisul, dan tipes. Sering juga digunakan untuk membersihkan organ wanita (vagina) dan mengobati gangguan menstruasi. Pengobatan tradisional tanaman faloak telah banyak digunakan secara luas, tetapi belum banyak penelitian dan bukti ilmiah mengenai aktivitas tanaman faloak sebagai ramuan herbal. Tujuan dari penulisan literature review ini adalah untuk mengetahui efek dari tanaman faloak sebagai antioksidan. Untuk itu dilakukan penulusuran literatur melalui pencarian artikel dalam database jurnal penelitian melalui website internet. Dari hasil penelusuran literatur ini diketahui adanya aktivitas antioksidan yang signifikan pada penggunaan ekstrak bagian kulit batang dan akar Sterculia quadrifida yang menunjukkan aktivitas antioksidan paling kuat dibandingkan daun, buah dan biji. Aktivitas antioksidan ditemukan terbaik pada ekstrak etanol 95% untuk kulit batang tanaman dan etanol 70% untuk akar tanaman. Diketahui hal ini karena dari hasil identifikasi kandungan senyawa metabolit sekunder yang terdapat pada tanaman ini, antara lain alkaloid, fenol, flavonoid, terpenoid dan tanin yang diketahui berperan sebagai anti antioksidan.
Mainstreaming of Religious Moderation Program in The Department of Islamic Religious Education
Authors: Putri Luqyana Azmiya , Sabarudin  , Zebua Ali Marzuki
Published: July 2023

Islamic Religious College (PTKI) is a preventive medium in realizing a religious moderation program in which this program is presently carrying an inclusive mission to eradicate the chain of extremism in various lines of religious life. The mainstreaming of religious moderation continues to develop, as evidenced by the incessant movement of universities to implement it. Likewise, IAIN Kerinci, a campus with Islamic nuances in Jambi Province, has also become a pioneer of religious moderation. Various activities that carry the spirit of religious moderation that are often carried out in the Islamic Religious Education department at IAIN Kerinci are a form of real contribution that has been carried out. This study aims to see how far the PAI majors of IAIN Kerinci are in implementing religious moderation programs in the academic community. For this reason, in finding answers, researchers use the field research method, namely field research, to obtain data and information. Data collection techniques include observation, interview, and documentation techniques. The results showed that the PAI department initiated a religious moderation program that started from the literacy ground and then began to touch on various academic activities.
Bédouins et Sédentaires aujourd’hui à al-‘Ulâ (Royaume d’Arabie saoudite), al-diyâr et al-Dîra dans le rétroviseur
Authors: Battesti Vincent , Marty Léo
Published: July 2023

Les communautés saoudiennes qui composent l’oasis d’al-‘Ulâ (Arabie saoudite) affichent une unité cimentée par l’appartenance au royaume, excluant de fait les travailleurs étrangers, essentiels à l’économie oasienne locale. Cette unité sous le sceau royal est plus proclamée que localement pensée et vécue par les habitants de la région. Les identités collectives locales se vivent en réalité emboîtées, définies par l’appartenance à un groupe autant que par sa distinction d’avec l’autre groupe de même nature. Ce principe de subdivision emboîtée commence entre groupes bédouins et sédentaires et se poursuit en leur sein. Ces premiers résultats d’une rare enquête ethnographique dans le royaume d’Arabie saoudite veulent offrir — avant la finalisation du projet qui les porte — une base de connaissances essentielle afin que le développement actuel d’al-‘Ulâ, conduit par la Royal Commission for AlUla (RCU) et ses prestataires, se mène au plus près des réalités sociales et de la population locale.
Coaxial Rotor Wake Measurements in Hover Using Phase-Resolved and Time-Resolved PIV
Authors:   University of Texas Austin, Mortimer Patrick ,   IHTT University of Munich, Platzer Stefan , Sirohi Jayant , Rauleder Juergen
Published: July 2023

Flow field measurements were performed on a 2-m-diameter coaxial counter-rotating rotor at a blade loading coefficient of 0.085. Two sets of experiments were performed: phase-resolved measurements on the coaxial rotor system with single blades on each rotor, and time-resolved measurements on the coaxial rotor system with two blades on each rotor. The goal of the measurements was to investigate the interactional aerodynamics of the coaxial rotors as well as the variation of rotor inflow over rotor radius and azimuth. The phase-resolved measurements were done at index angles of 0°, 10°, 45°, 90°, 180°, and 270° with 500 instantaneous flow realizations per azimuth captured over 500 rotor revolutions. Time-resolved measurements were done at 64/rev over 520 rotor revolutions. Tip vortex characteristics in terms of vortex trajectories and axial velocity profiles through the vortices were investigated. Aerodynamic interactions between the upper and lower rotor vortex wakes were apparent, mutually inducing velocities on each other. The tip vortices from the upper rotor were found to convect radially inward and axially downstream significantly faster than the tip vortices from the lower rotor, and their vortex core radius grew more quickly. Mean axial velocity profiles and their variation in the rotor spanwise and axial directions were measured above, below, and in between the rotor planes. The inflow velocities for each of the rotors as a function of rotor azimuth were approximated by interpolating the axial velocity at a single radial location immediately above and below the coaxial rotor planes. The measured data clearly showed the effects of the blade passage and the aerodynamic interactions between the upper and lower rotors on the inflow.
A Case Report: An Unusual Variation in the Facial Artery
Authors: Zamani Saeed , Safaee Azadeh , Azimi Sayed Mehrdad , Homayoun Mansour
Published: July 2023

The facial artery is the main artery supplying the face occasionally. It gives three branches on the face, the inferior labial, the superior labial, and the lateral nasal, and terminates as the angular artery. Due to congenital vascular variations in the facial artery, it has been considered in the dissection of the head and neck region. During the dissection of a 65-year-old woman to expose this region, we discovered that the left facial artery is terminated by the superior labial artery after giving off the submental and inferior labial branches. At the level of the left oral commissure, the facial artery was attached to the buccinator muscle as connective tissue, with a noticeable decrease in diameter. The purpose of this study is to report a new variation of the facial artery that is particularly important for cadaver dissection, and head and neck surgeries, as well as for facial artery angiography.
A Case of Pneumoperitoneum after Colonoscopy without Frank Perforation
Authors: Soheilipour Maryam , Momenzadeh Mahnaz , Aria Amir , Saghar Fatemeh , Tabesh Elham
Published: July 2023

Benign pneumoperitoneum can happen after colonoscopy, which shows itself as free air in the abdomen without symptoms or pneumoperitoneum without peritonitis. In this case, we reported a rare case of an elderly man who had acute abdominal stiffness after colonoscopy and observation of free air under the diaphragm that no perforation was observed in the intestine during laparoscopy and only one tiny intestinal tumor was randomly reported. There is no consensus on the treatment of pneumoperitoneum after colonoscopy. Patients with peritonitis benefit from laparoscopy but patients with micro perforation and asymptomatic patients benefit from intravenous antibiotic treatment and bowel rest.
Magnetic compression anastomosis for reconstruction of digestive tract after total gastrectomy in beagle model
Authors: Zhang Miao-Miao , Li Chen-Guang , Xu Shu-Qin , Mao Jian-Qi , Zhang Yu-Han , Shi Ai-Hua , Li Yan , Lyu Yi , Yan Xiao-Peng
Published: July 2023

Obstructive jaundice (OJ) is a common problem in daily clinical practice. However, completely understanding the pathophysiological changes in OJ remains a challenge for planning current and future management. The effects of OJ are widespread, affecting the biliary tree, hepatic cells, liver function, and causing systemic complications. The lack of bile in the intestine, destruction of the intestinal mucosal barrier, and increased absorption of endotoxins can lead to endotoxemia, production of proinflammatory cytokines, and induce systemic inflammatory response syndrome, ultimately leading to multiple organ dysfunction syndrome. Proper management of OJ includes adequate water supply and electrolyte replacement, nutritional support, preventive antibiotics, pain relief, and itching relief. The surgical treatment of OJ depends on the cause, location, and severity of the obstruction. Biliary drainage, surgery, and endoscopic intervention are potential treatment options depending on the patient's condition. In addition to modern medical treatments, Traditional Chinese medicine may offer therapeutic benefits for OJ. A comprehensive search was conducted on PubMed for relevant articles published up to August 1970. This review discusses in detail the pathophysiological changes associated with OJ and presents effective strategies for managing the condition.
Evaluation of the nutritional status of patients with liver cirrhosis
Authors: Janota Barbara , Krupowicz Aneta , Noras Kinga , Janczewska Ewa
Published: July 2023

Metabolic-associated fatty liver disease (MAFLD) is one of the most common chronic liver diseases worldwide. In recent years, the occurrence rate of MAFLD has been on the rise, mainly due to lifestyle changes, high-calorie diets, and imbalanced dietary structures, thereby posing a threat to human health and creating heavy social and economic burdens. With the development of 16S sequencing and integrated multi-omics analysis, the role of the gut microbiota (GM) and its metabolites in MAFLD has been further recognized. The GM plays a role in digestion, energy metabolism, vitamin synthesis, the prevention of pathogenic bacteria colonisation, and immunoregulation. The gut-liver axis is one of the vital links between the GM and the liver. Toxic substances in the intestine can enter the liver through the portal vascular system when the intestinal barrier is severely damaged. The liver also influences the GM in various ways, such as bile acid circulation. The gut-liver axis is essential in maintaining the body’s normal physiological state and plays a role in the onset and prognosis of many diseases, including MAFLD. This article reviews the status of the GM and MAFLD and summarizes the GM characteristics in MAFLD. The relationship between the GM and MAFLD is discussed in terms of bile acid circulation, energy metabolism, micronutrients, and signalling pathways. Current MAFLD treatments targeting the GM are also listed.
Da liberdade do espírito
Authors: Métayer Guillaume
Published: July 2023

Este artigo apresenta a noção nietzschiana de “espírito livre” no período intermediário de sua obra. Ele se concentra na relação dessa noção com a figura de Voltaire que serviu de influência àquela, ao mesmo tempo, como modelo (i) geral, de liberdade de pensamento, (ii) estrito, pelo conteúdo emancipatório de combate à metafísica e (iii) estrito, pela forma libertadora de escritor irônico e mordaz.
Pramipexol, Covid-19 en/of bariatrische heelkunde: place your bets
Authors: Lanckriet E. , Snauwaert P.
Published: July 2023

Pramipexole, COVID-19 and/or bariatric surgery: place your bets

A 56-year-old woman was diagnosed with restless legs syndrome (RLS). Initially, a magnesium supplement was started, which did not improve her situation. Neither did the subsequent pregabalin, although alpha-delta ligands are currently the treatment of first choice. The start-up of a trial treatment with pramipexole in a next step had an immediate positive effect on the complaints. Dopamine agonists are, however, no longer the first-choice treatment for RLS, although they may be used as a therapy for this condition in case of insufficient effect of the initial treatment or in the presence of a contraindication.

Four months after the start-up of pramipexole, a problem of pathological gambling was identified in the patient. Since the gambling had started during the COVID-19 pandemic and the patient was known with bariatric surgery in the past, the relationships between these 2 factors and the possible development of a gambling addiction were also investigated using literature. An increase in gambling activities as a result of the COVID-19 pandemic or as a postoperative complication of a gastric bypass could not be demonstrated.

The intake of pramipexole was the most likely cause of the impulse control disorder in this patient. Physicians prescribing pramipexole, also in low doses, should monitor their patients regularly regarding the development of such a disorder as a possible side effect. A gradual phase-out with discontinuation of the treatment should be considered in case of an impulse control disorder.
Editorial
Authors: Merino Cristian
Published: July 2023

Editorial de presentación del primer número
Derrotando barreras de aprendizaje y de la participación en clases de Biología durante la unidad: Dinámica de Poblaciones y Comunidades
Authors: Rojas Ibáñez Pamela Grisel
Published: July 2023

El presente trabajo corresponde a una investigación-acción desarrollada por una profesora novel de Biología a cargo de un 2° Medio en un establecimiento municipal. A inicios de año, dicho curso presentaba características disruptivas y conductas de desinterés durante las clases, las que fueron atribuidas a la falta de incorporación de las preferencias de aprendizaje de los estudiantes en cuanto a qué aprender de la Biología, cómo aprenderla y con quién. Al término del proceso se evidencia que, al otorgar espacios para la participación y la inclusión de las preferencias de aprendizaje de los estudiantes en distintas instancias, mediante estrategias propuestas por ellos mismos (inclusión de proyectos de clases, organización de una salida a terreno y la incorporación de preguntas misceláneas al término de la clase), se logra fomentar la participación,el compromiso y el mejoramiento del clima de aula. Esto favorece los aprendizajes en la asignatura, evidenciado en el logro de los estándares de aprendizaje. El enfocar a los estudiantes en el proceso de enseñanza y aprendizaje no sólo trajo mejoras en el aprendizaje de los estudiantes, sino que también ayudó a desarrollar la identidad profesional de la docente novel.
Promover buenas preguntas en el estudiantado de enseñanza media a partir de situaciones problema: un ejemplo para la enseñanza de membrana plasmática
Authors: Rojas Conejera Alejandra , Joglar Carol , Jara Campos Roxana
Published: July 2023

Es fundamental que el profesorado conozca distintas estrategias para el desarrollo de competencias científicas en sus estudiantes, y la formulación de buenas preguntas se instala como una necesidad emanada de las bases curriculares de 2013. En este artículo se expone una propuesta didáctica que demuestra cómo, a partir de una actividad que utiliza una situación problema, se promueve la elaboración de buenas preguntas en el estudiantado de primer año medio, durante una clase enmarcada en la Unidad Didáctica de Estructura y Función de la Membrana Plasmática. Los resultados indican que las preguntas abiertas superan a las preguntas cerradas después de la enseñanza, y que las preguntas abiertas formuladas transitan desde los niveles cognitivos más sencillos a niveles cognitivos más complejos en ambos cursos estudiados.
Resúmenes de trabajos de titulación
Authors: Merino Rubilar Cristian
Published: July 2023

Se presentan resúmenes de trabajos de titulación de los programas de formación de profesores de la Facultad de Ciencias de la Pontificia Universidad Católica de Valparaíso, correspondientes al segundo semestre de 2017.
Realismo científico versus constructivismo en la formación inicial de profesores de química
Authors: Quiroz Waldo , Colihuinca Eduardo , Merino Cristian
Published: July 2023

En este estudio, se analizan las concepciones epistemológicas de académicos y estudiantes de un programa de formación de profesores de química. Dado que en el proceso formativo participan académicos de dos facultades (ciencias y educación) nos interesó conocer sus concepciones epistemológicas y compararlas. Los resultados mostraron que la aceptación del positivismo por parte de académicos de ambas facultades es nula, cosa que sí se manifiesta en los profesores en formación. Por otra parte, la visión constructivista de la ciencia es completamente rechazada por parte de los académicos de la facultad de ciencia quienes presentan una epistemología claramente ligada al realismo científico. Respecto de los académicos de la facultad de educación, de forma interesante, estos presentan concepciones epistemológicas muy heterogéneas que van desde el realismo hacia el constructivismo
La robótica como metodología de aprendizaje de circuitos eléctricos en estudiantes de enseñanza básica y media en Chile
Authors: Mena Mena Israel
Published: July 2023

En esta investigación se presenta una experiencia concreta de trabajo con robótica como metodología de aprendizaje basado en proyectos (ABP) para facilitar el aprendizaje de los circuitos eléctricos en la asignatura de Física en alumnos de enseñanza media.El enfoque desarrollado se basa en la propuesta de un solo proyecto para todo el grupo curso que corresponde a la construcción de un robot seguidor de luz, en donde los objetivos no son excluyentes al desarrollo técnico del proyecto, sino que permiten experimentar un método de aprendizaje alternativo, colaborativo y que facilitan la creación un entorno favorable para el desarrollo de competencias transversales. Esto conlleva a una internalización, es decir, a un aprendizaje significativo en el proceso de aprendizaje de cada estudiante.
Creando comunidad de ciencias en la Escuela Básica Las Cruces, una experiencia de trabajo colaborativo
Authors: Meza Saavedra Norma
Published: July 2023

El año 2019 comienza el proceso de conformación de la Comunidad Profesional Docente de Ciencias en la Escuela Básica Las Cruces, que estuvo motivado por la experiencia de cursar el Programa ICEC, junto a la necesidad de establecer una base firme para el desarrollo de habilidades científicas durante la primera infancia en niños y niñas del establecimiento. El siguiente escrito, narra el proceso de investigación-acción que ha acompañado el camino de esta comunidad y su tránsito hacia la virtualidad durante el año 2020, valorando la articulación y colaboración entre las docentes que conformamos el espacio de la comunidad como uno de los principales motores que impulsan los distintos logros y acciones del grupo.
Enseñanza de las Ciencias: desafíos para el trabajo de la indagación en el aula diversa
Authors: Sabando Rojas Dorys Soledad , Ramos Araya María Cecilia
Published: July 2023

El programa ICEC, es una iniciativa del MINEDUC, que implementa acciones formativas mediante convenios de colaboración con diversas universidades chilenas, para contribuir al desarrollo profesional docente a través de la formación en indagación científica como enfoque didáctico pedagógico en la educación en ciencia en escuelas y liceos. Durante el año 2019, el programa ICEC de La Universidad de La Serena (ULS), incorporó una serie de propuestas de trabajo con el profesorado de ciencia, orientadas a la atención de la diversidad del alumnado presente en las aulas, bajo la premisa de que el aula de ciencia debe ser inclusiva, lo que requiere que todas las acciones propuestas para implementar en las clases, deben estar disponibles para todo el alumnado, procurando otorgar oportunidades de aprendizaje para cada niño, niña y adolescente. El presente artículo aborda la importancia de avanzar hacia una educación científica inclusiva, revisando el concepto de inclusión y las principales estrategias que favorecen la atención de la diversidad, enfatizando en el cambio hacia un paradigma colaborativo, como requisito para implementar una educación más equitativa para todos y todas. Finalmente, se presentan los aspectos más consolidados y las necesidades, manifestadas por las y los docentes participantes del programa ICEC.
Caracterización de las prácticas educativas en ciencias naturales centrada en el aporte al desarrollo profesional docente en ICEC
Authors: Luna Ulloa Tamara , Cuellar Fernández Luigi
Published: July 2023

El Ministerio de Educación Chileno ha venido desarrollando diversas iniciativas de formación del profesorado en las que se promueve la mejora en educación. Un ejemplo es el Programa de Indagación Científica para la Enseñanza de las Ciencias (ICEC), dirigido a docentes de educación parvularia, básica y media. La literatura indica que los cambios en las prácticas de enseñanza de las y los docentes presentan desafíos y dificultades, por lo que surge la necesidad y pertinencia de investigar cómo se ha llevado a cabo en las aulas la implementación de este nuevo enfoque y cuáles han sido los aportes del Programa al desarrollo profesional docente. A partir de un estudio de caso, los resultados obtenidos evidencian que las y los docentes principiantes y expertos intencionan espacios de cuestionamiento de las prácticas de enseñanza en forma individual y colectiva. Además, las visiones en la enseñanza de las ciencias se movilizan desde enfoques tradicionales hacia constructivistas, desarrollando habilidades de indagación científica en las y los estudiantes, al tiempo que se evidencian las dificultades en la implementación. El estudio permite concluir que el desarrollo profesional docente podría incorporar en forma intencionada y articulada aspectos epistemológicos desde la reflexión de sus prácticas y el trabajo entre pares.
Sıçanlarda Akut Kısıtlama ve Soğuk Kısıtlama Stres Tepkisinin Elektrokardiyografik Değerlendirmesi
Authors: KOÇ Çağlasu , EKİCİ Mehmet
Published: July 2023

Bu çalışmada, akut kısıtlama stresi ve soğuk kısıtlama stresinin sıçanlarda elektrokardiyografik (EKG) parametreler üzerindeki etkilerini araştırıldı. Toplam 18 adet 8-10 haftalık, ağırlıkları 180-220 g olan erkek Wistar albino rat üç eşit gruba (n=6/grup) ayrıldı. Kontrol grubundaki ratlara stresör uygulanmadı. Kısıtlama grubundaki ratlar 2 saat kısıtlayıcıda tutuldu. Soğuk tutma grubundaki ratlar kısıtlayıcı içinde 2 saat +4°C'de tutuldu. Sıçanlarda Televet II EKG cihazı (Kruuse, Almanya) ile ketamin ve ksilazin anestezisi altında EKG kaydı yapıldı ve derivasyonların analizinde Televet 100 programı (versiyon® 7.0.0, Kruuse, Heusenstamm, Almanya) kullanıldı. PR, QT, QRS intervalleri ve R dalgası amplitüdü analizinde gruplar arasında anlamlı fark yoktu (p >0,05). Ancak, kalp atım hızı soğuk kısıtlama grubunda kontrol grubuna (p
Modeling the spatially distributed nature of subglacial sediment transport and erosion
Authors: Delaney Ian , Anderson Leif , Herman Frédéric
Published: July 2023

Abstract. Glaciers expel sediment as they melt, in addition to ice and water. As a result, changing glacier dynamics and melt produce changes to glacier erosion and sediment discharge, which can impact the landscape surrounding retreating glaciers, as well as communities and ecosystems downstream. Currently, numerical models that transport subglacial sediment on sub-hourly to decadal scales are one-dimensional, usually along a glacier's flow line. Such models have proven useful in describing the formation of glacial landforms, the impact of sediment transport on glacier dynamics, and the interactions among climate, glacier dynamics, and erosion. However, these models omit the two-dimensional spatial distribution of sediment and its impact on sediment connectivity – the movement of sediment between its detachment in source areas and its deposition in sinks. Here, we present a numerical model that fulfills a need for predictive frameworks that describe subglacial sediment discharge in two spatial dimensions (x and y) over time. SUGSET_2D evolves a two-dimensional subglacial till layer in response to bedrock erosion and changing sediment transport conditions. Numerical experiments performed using an idealized alpine glacier illustrate the heterogeneity in sediment transport and bedrock erosion below the glacier. An increase in sediment discharge follows increased glacier melt, as has been documented in field observations and other numerical experiments. We also apply the model to a real alpine glacier, Griesgletscher in the Swiss Alps, where we compare outputs with annual measurements of sediment discharge. SUGSET_2D accurately reproduces the general quantities of sediment discharge and the year-to-year sediment discharge pattern measured at the glacier terminus. The model's ability to match the measured data depends on the tunable sediment grain size parameter, which controls subglacial sediment transport capacity. Smaller grain sizes allow sediment transport to occur in regions of the bed with reduced water flow and channel size, effectively increasing sediment connectivity into the main channels. The model provides the essential components of modeling subglacial sediment discharge on seasonal to decadal timescales and reveals the importance of including spatial heterogeneities in water discharge and sediment transport in both the x and y dimensions in evaluating sediment discharge.