bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effectiveness of Cooperative Learning Model with Group Investigation (Gi) Using Comic Media Towards Mathematical Literacy Ability of Viii Students at SMP Negeri 1 Punggelan
Authors: Khasanah Nur , Setiaji Heru Agni
Published: November 2023

This study aims to determine the effectiveness of the GI-type cooperative learning model assisted by comic media on increasing the mathematical literacy skills of class VIII students of SMP Negeri 1 Punggelan. This research is an experimental research with a quantitative approach. The population in this study were students of class VIII SMP Negeri 1 Punggelan and the samples used were taken by simple random sampling technique and the sample results obtained were students of class VIII G and class VIII H, totaling 58 students. The instrument used in this study was a description test consisting of a pretest and a posttest. The results of this study are that the average mathematical literacy ability of students who are subjected to the GI type cooperative learning model assisted by comic media is better than those who are not subjected to it, as seen from the results of the N-Gain test, namely the experimental class obtained an average N-Gain value of 0 .77 with high criteria, while in the control class the average N-Gain value for the control class was 0.47 with moderate criteria. In the t-test, the two independent samples showed a significance result of 0.000 <0.05, meaning that there was a significant difference in students' mathematical literacy skills between the experimental and control classes. The GI type cooperative learning model assisted by comic media was declared effective for increasing mathematical literacy skills with the average N-Gain test results obtained in the experimental class by 77% with effective criteria and in the control class by 47% with less effective criteria.
Coordinate separation method for modeling the ship winch drive
Authors: Ivanovskaya Aleksandra Vitalievna , Bezjukov Oleg Konstantinovich
Published: November 2023

The operation of the lifting equipment of a fishing vessel has a number of differences from similar shore devices or cranes and winches operated on transport vessels. The difference from coastal equipment is the external impact from the marine environment, manifested by on-board or keel rolling. The lifting equipment of a transport vessel, influenced by hydrometeorological factors, transports cargo with constant parameters, i.e. the effective load can be calculated according to a proven methodology in accordance with standards. The relevance of the task of improving the methodology for calculating operational loads acting on the lifting equipment of a fishing vessel is confirmed. The accuracy of mathematical models plays a key role in the development of an automatic control system, which must be taken into account when designing modern fishing vessels. When developing mathematical models, both hydrometeorological factors (wind and wave load, surface and underwater current) and variable parameters of the towed object (mass, hydrodynamic resistance, shape, movement on the ground, etc.) should be considered. Forecasting the dynamic behavior of each element of the “ship - winch - cable - towed object” system it will ensure operational and environmental safety, reliability, as well as energy and economic efficiency of the new fishing vessel as a whole. The method of coordinate separation used for mathematical modeling of the ship's winch drive, the operation of which is characterized by non-stationary dynamic processes arising from the effects of hydrometeorological factors and variable loading from the towed object, is presented. The advantage of this modeling method is the choice of any coordinate as an independent one, without being tied to the actual location.
Prolegomene privind stratagemele neloiale în procedurile penale probatorii
Authors: Udroiu Mihail , Popa Mihai
Published: November 2023

Aceste prolegomene urmăresc să pună în lumină bazele unei axiologii emergente conceptualizate să guverneze în mod transcendental motorul epistemic al procesului penal, contribuind pe această cale la construirea unei teorii moderne a probelor și probațiunii. 

Susținem că dreptul probatoriu al procesului penal și principiile sale trebuie fundamentate inter alia de valori precum liceitatea și loialitatea. Astfel fiind, principiul textual al loialității este conceput să securizeze preeminența dreptului în procedurile penale probatorii, mai presus de simpla conformare formală – dar, frauduloasă, vicleană ori înșelătoare, în același timp – cu normele legale aplicabile.

Într-un cadru normativ derutant corelat cu o jurisprudență reticentă, preocupată preponderent de tematica provocării, iar nu de identificarea caracteristicilor generale ale unui tipar de conduită neloială în procedurile probatorii, susținem că unul dintre principalele instrumente menite să promoveze această axiologie rezidă în stabilirea unei distincții riguroase între preeminența dreptului, legalitate și legalism. În atare circumstanțe, încercăm să examinăm în detaliu conceptul de loialitate (probatorie) mai presus de textul normativ care reglementează principiul de drept omonim, pentru a-i augmenta astfel comprehensibilitatea, integrând ulterior un astfel de topic în sfera conceptelor elementare ale filosofiei lui Perelman despre rezonabil și nerezonabil în drept.

În continuare, abordarea taxonomică va pune bazele distincției dintre provocare și stratagemele neloiale, ca principale tipologii de conduite neloiale, iar, subsecvent, între stratagemele neloiale expres, respectiv implicit, prohibite de lege. Astfel, susținem că stratagemele reprezintă un taxon de nivel superior – un hiperonim – ce reunește eludarea procedurii, deturnarea acesteia, manoperele ce conduc la vicierea voinței persoanei audiate, respectiv tertipurile de provocare la proba confesională în afara unei audieri. Fiecare dintre aceste tipologii de stratageme neloiale va fi examinată în detaliu.
Prelevarea ilegală de organe sau ţesuturi de la o persoană decedată
Authors: Lucaciu Diana
Published: November 2023

În cuprinsul acestui articol ne-am propus să analizăm conținutul constitutiv al infracțiunilor de prelevare ilegală de țesuturi sau organe, prev. de art. 384 C. pen., precum și de efectuare a unei prelevări atunci când prin aceasta se compromite o autopsie medico-legală, solicitată în condiţiile legii, prev. de art. 155 din Legea nr. 95/2006 privind reforma în domeniul sănătății, pentru a stabili sfera de aplicabilitate a acestora și, în același timp, pentru a le putea delimita cu ușurință de alte infracțiuni incidente în materia traficului de organe ori a traficului de persoane în scopul prelevării ilegale de organe.
Măsurile educative privative de libertate – o perspectivă jurisprudenţială
Authors: Sorohan Ștefana-Iuliana
Published: November 2023

Odată cu adoptarea actualului Cod Penal, pentru minorii care răspund penal, legiuitorul a renunțat la sistemul sancționator dual, specific vechii reglementări, compus din pedepse și măsuri educative, orientându-se spre un sistem unic, format doar din măsuri educative, în cadrul căruia guvernează regula conform căreia privarea de libertate este o soluție de ultim resort. Totuși, se poate observa că actuala reglementare permite în continuare instanțelor de judecată să dispună, sub dezideratul reeducării, privarea de libertate a minorilor pe o durată considerabilă de timp, perioadă în care aceștia sunt îndepărtați din mediul lor social. Așadar, este util de analizat dacă prin reformarea sistemului sancționator incident în cazul minorilor care răspund penal s-a produs o delimitare clară a sancțiunilor aplicabile acestora de pedepsele clasice, precum și modalitatea în care preocupările pentru aplicarea unui tratament diferențiat în cazul inculpaților minori au fost absorbite de practica judiciară.
Câteva situaţii particulare privind pluralitatea de infracţiuni în cazul minorilor şi regimul prelungirii ori înlocuirii măsurilor educative
Authors: Ioan George Cristian
Published: November 2023

Prezentul articol vizează pluralitatea de infracțiuni în cazul minorilor. Analizând textele de lege din materie și jurisprudența relevantă în materie, vom constata că există multiple probleme pe care regimul pluralității de infracțiuni la minori – fundamental diferit de cel din cazul majorilor – le ridică, atât în practică, cât și teoretic. După cum vom constata, se pot identifica atât situații în care textele pot fi aplicate corespunzător doar pe baza unei interpretări logico-sistematice, situații în care se impune umplerea unor goluri din legislație pe calea interpretării, cât și situații în care, pur și simplu, necorelările legislative duc la rezultate juridice inechitabile, care apreciem că trebuie semnalate. De asemenea, regimul juridic al înlocuirii ori prelungirii măsurilor educative, prin el însuși, ridică anumite probleme care considerăm că merită atenție.

După indicarea unor (foarte) succinte repere teoretice, vom analiza, pe rând, câteva situații care ar putea ridica probleme privind pluralitatea de infracțiuni în cazul minorilor și vom încerca propunerea unor soluții rezonabile și legale în privința lor.
Încălcarea competenţei speciale a Direcţiei Naţionale Anticorupţie. Inaplicabilitatea dispoziţiilor art. 50 alin. (2) C. pr. pen. în cursul urmăririi penale
Authors: Lupașcu Dan , Marin Cătălin
Published: November 2023

În condițiile în care procurorul nu a procedat, conform art. 58 alin. (1) C. pr. pen., la verificarea, imediat după sesizare, a competenței sale și a încălcat dispozițiile legale privind competența după calitatea persoanei, în raport de prevederile art. 281 alin. (1) lit. b) C. pr. pen. și de Decizia nr. 302/2017 a Curții Constituționale, toate actele de urmărire penală și probele administrate sunt lovite de nulitate absolută.

În faza de urmărire penală nu își găsesc incidența dispozițiile art. 50 alin. (2) C. pr. pen., neexistând posibilitatea legală pentru procuror ca, în situația în care declinarea a fost determinată de competența materială sau după calitatea persoanei, să mențină probele administrate, actele îndeplinite și măsurile dispuse de procurorul care și-a declinat competența.

(Curtea de Apel București, Secția I penală, Încheierea nr. 100/CP din 22.02.2023)
From Participatory Governance to Collaborative Governance for Disaster-Tourism
Authors: Zaenuri Muchamad
Published: November 2023

This article aims to explain the need for changing the model from participatory governance to collaborative governance in disaster tourism management. This research utilized a descriptive qualitative approach. The findings revealed that sustainable tourism development is crucial and must receive careful attention within a comprehensive national development framework. In the current era, the government cannot carry out tourism development independently given the limited capacity and provide sufficient space for increasingly active private and public participation. Sustainable tourism development can be performed through a collaborative governance model involving various stakeholders. The development of a collaborative model can be conducted through the comprehensive participation stage of non-government stakeholders. With maximum participation, there will be a solid network to create partnerships as the final form of collaboration.
Efforts of Migrant Care and the Indonesian Government in Realizing the Protection of Indonesian Migrant Workers (PMI) Facing the Death Penalty in Saudi Arabia (2015 – 2018)
Authors: Renta Pebria Prakarsa , Paksi Arie Kusuma
Published: November 2023

One of Indonesia’s numerous issues is the size of its workforce. The Indonesian government’s solution is to send Indonesian female migrant workers in the informal sector overseas, including to Saudi Arabia. These difficulties can be divided into three categories: light, moderate, and severe—the death penalty. The death penalty represents the most extreme level of the issue. From 2015 to 2018, several Indonesian female migrant workers in Saudi Arabia’s informal sector had been sentenced to death without any notification from the Saudi Arabian government to the Indonesian government, including the execution of Siti Zaenab in 2015 and the Tuti Tursilawati in 2018 It prompted Migrant Care and the Indonesian government to assist in the execution of Indonesian migrant workers (PMI) in the informal sector.
UTILIZING VIRTUAL LABORATORIES FOR PHYSICS INSTRUCTION IN SECONDARY EDUCATION: A PEDAGOGICAL INQUIRY
Authors: Safaryan Naira
Published: November 2023

This study investigates the integration of virtual laboratories into physics education in public schools, exploring the methodological nuances and pedagogical implications of this innovative approach. Rooted in a theoretical framework emphasizing pedagogical foundations, the research reviews the literature, identifying gaps in existing knowledge. Utilizing sociological surveys among teachers, the study delves into their experiences and perceptions of virtual laboratory implementation. Virtual laboratories, with their dynamic and interactive features, offer to students’ immersive opportunities to explore complex physics concepts. The findings contribute to the discourse on inventive pedagogical strategies, providing practical insights for educators and policymakers in navigating the evolving educational landscape. By bridging the theoretical-practical gap, this research aims to enhance the educational experience for students, positioning virtual laboratories as a valuable tool in the modern physics classroom.
METHODS OF TEACHING OF AGGRESSION THEORIES
Authors: AYVAZYAN ANJELIKA
Published: November 2023

The article presents a brief overview of the theoretical study of aggression and methods of teaching the fundamental theories of aggression. It is shown that the problem of studying the phenomenon of aggression in modern society is widely widespread. Different teaching methods are characterized, with the help of which an empirical study was conducted. The general purpose of the study is presenting the idea of the need to study teaching methods in the psychology of aggression. The study’s main result was that the process of teaching the theories of aggression is accompanied by a significant emotional load. Students tend to perceive the subject of learning through the prism of personal experience and emotional experiences. The article emphasizes the need for further research in order to develop an optimal teaching method. The scientific innovation of this study is a manifestation of the trends of aggression theories interpretations.
Development of Interactive Learning Media Assisted by Lectora Inspire Application in Science Subjects Class IV SDN Baru 03 Pagi
Authors: Siti Madiyah Khoidah , Mulyawati Ima
Published: November 2023

Researchers and developers are hard at work on new learning media, one of which is the Lectora Inspire application media, to counteract student indifference in homework and a rising lack of incentive to learn. The study technique is based on the 4D development paradigm (Define, Design, Develop, and Disseminate). The study's goal is to determine whether the media developed can be used and to collect data on how students react to the media. The goal of this study was to assess the performance of lecturers and professors serving as media and material validators, as well as students serving as respondents. Material experts validate 92.78% of the time, while media experts validate 91.78% of the time; expert teachers on average 85.00%; and students with an average of 89.52%. With the help of the Lectora Inspire software, it is clear that the potential for interactive learning media is enormous as a teaching tool.
Listeria monocytogenes cholangiohepatitis in a lactating Holstein cow
Authors: John Emily E. , Crane M. Bronwyn , McClure J. T.
Published: November 2023

OBJECTIVE

To describe a unique presentation of systemic Listeria monocytogenes infection in a lactating adult Holstein cow.

ANIMAL

3-year-old second-parity female Holstein, 200 days in milk.

CLINICAL PRESENTATION, PROGRESSION, AND PROCEDURES

A 3-year-old Holstein dairy cow was presented for decreased appetite, decreased milk production, and pyrexia. Blood work displayed marked abnormalities in liver-associated parameters. A diagnosis of L monocytogenes cholangiohepatitis was made following liver biopsy, histopathology, and bacterial culture.

TREATMENT AND OUTCOME

The cow was treated with systemic antimicrobial and antipyretic therapy. The cow was discharged to continue treatment on farm, and at time of last communication with the owner, the cow was doing very well, with full resolution of clinical signs.

CLINICAL RELEVANCE

This case report describes a novel presentation of L monocytogenes infection in an adult bovine. L monocytogenes cholangiohepatitis should be considered a rare differential diagnosis in cattle presenting with evidence of pyrexia and liver disease.
Proximate composition and sensory acceptability of cowpea-based pudding produced from cowpea cultivated using different weed control methods
Authors: Oke E. K. , Hammod B. A. , Adeola A. A. , Ojo O. A. , Omoniyi S.A.
Published: November 2023

This study evaluates the effect of different weed control methods on the proximate composition and sensory properties of cowpea-based pudding produced from cowpea flour. Cowpea seeds of Ife Brown variety with three different treatments [(supplementary hoe weeding at 6 weeks after sowing, two hoe weeding at 3 and 6 weeks after sowing, and three hoe weeding at 3, 6, and 9 weeks after sowing (WAS)] were processed into flour samples and analysed for physicochemical properties using standard methods. The puddings were prepared from cowpea flour and were subjected to proximate composition, colour properties as well as sensory qualities using standard methods. The pH, total titratable acidity, water absorption capacity and amylose of cowpea flour were 4.85–5.10, 0.02%–0.05%, 276.00%–287.09%, and 22.04%–24.60% respectively. The ranges of values for moisture content, crude fat, total ash, crude fibre, crude protein, and total carbohydrate of cowpea based pudding were 74.26%–76.15%, 0.63%–0.71%, 0.75%–0.94%, 0.66%–0.75%, 16.70%–17.83%, and 5.11%–5.55% respectively. The colour properties of cowpea-based pudding were significantly affected (p < 0.05) by each treatment. However, cowpea-based pudding prepared from treatment of supplementary hoe weeding at 6 weeks after sowing and three hoe weeding at 3, 6, and 9 weeks after were preferred most by the panelist.
Methodological Aspects for Applied Linguistic Research – Mixed Methods, Triangulation
Authors: Sántha Kálmán , Malomsoki-Sántha Ágnes
Published: November 2023

Discovering human reality requires a complex methodological culture. Besides the quantitative and qualitative paradigms, this accentuates the role of mixed methods, which is a way of generating complex meanings. This paper addresses the issues of using mixed methods from a theoretical and practical perspective, delineates the development of the theory of mixed methods, and speaks for the necessity of theoretical multilingualism and the use of mixed models. It also details the triangulation typologies that give overall information about the object, subject, process, and structure of the research, and then it presents the links between mixed methods and methodological triangulation. The paper is recommended to anyone who ventures to conduct empirical studies with methodological awareness.
An improved deep learning approach for speech enhancement
Authors: Miled Malek , Ben Messaoud Mohamed Anouar
Published: November 2023

Single-channel speech enhancement refers to the task of improving the quality and intelligibility of a speech signal in a noisy environment. Time-domain and time-frequency-domain methods are two main categories of approaches for speech enhancement. In this paper, we propose a approach based on a cross-domain framework. This framework utilizes our knowledge of the spectrogram and overcomes some of the limitations faced by time-frequency domain methods. First, we apply the intrinsic mode functions of the empirical mode decomposition and an improved version of principal component analysis. Then, we design a cross-domain learning framework to determine the correlations along the frequency and time axes. At low SNR = -5 dB, the effectiveness of our proposed approach is demonstrated by its performance based on objective and subjective measures. With average scores of -0.49, 2.47, 2.44, and 0.68 for SegSNR, PESQ, Cov, and STOI, respectively. The results highlight the success of our approach in addressing low SNR conditions.
DISCRIMINACIÓN ESTRUCTURAL HACIA LAS PERSONAS TRANS EN MÉXICO (STRUCTURAL DISCRIMINATION AGAINST TRANS PEOPLE IN MEXICO)
Authors: MALDONADO MÉNDEZ ÉRIKA VERONICA , AYALA MALDONADO CARLOS ARIEL
Published: November 2023

El grupo de personas trans se encuentra en una situación de vulnerabilidad debido a la discriminación estructural que ha sufrido históricamente, al no encajar en la norma social de la identidad cisgénero. Este documento tiene como objetivo realizar una reflexión sobre los desafíos que en México enfrenta este grupo en distintos ámbitos sociales, los cuales afectan sus derechos humanos. La metodología seguida es de corte cualitativo, por medio del análisis de fuentes documentales de tipo legal y doctrinal, así como de experiencias personales con personas trans. Como resultado se identifica que la discriminación sistémica hacia el grupo de personas trans es un fenómeno profundo y complejo que requiere de un enfoque integral para erradicarla a través de la promulgación de normas jurídicas, la emisión de fallos judiciales y la implementación de políticas que promuevan la igualdad y la no discriminación.
 
American Psychological Association. (2023). Respuestas a sus preguntas sobre las personas trans, la identidad de género y la expresión de género. Recuperado de https://www.apa.org/topics/lgbtq/transgenero
Comisión Nacional de los Derechos Humanos (CNDH). (2012). Discriminación y derecho a la no discriminación. México: CNDH. Recuperado de http://familiasysexualidades.inmujeres.gob.mx/pdf/2_Cartilla_Discriminacion.pdf
CONAPRED. (2018). Resumen ejecutivo. Encuesta sobre discriminación por motivos de orientación sexual e identidad de género. Recuperado de http://mongoenadisxdf5qzobg474i-vm0.eastus.cloudapp.azure.com/assets/pdf/Resumen_Ejecutivo_ENDOSIG_16-05_2019.pdf   
Lara Espinosa, D. (2015). Grupos en situación de vulnerabilidad. México: CNDH. Recuperado de http://appweb.cndh.org.mx/biblioteca/archivos/pdfs/fas_CTDH_GruposVulnerabilidad1aReimpr.pdf
Martínez Asprilla, Y. M., y Ordoñez, E. J. (2019). Igualdad en las acciones afirmativas en Latinoamérica. Aproximación comparativa. Revista Venezolana de Gerencia, 2. Recuperado de https://www.redalyc.org/journal/290/29063446017/29063446017.pdf
Pérez Contreras, M. de M. (2005). Aproximación a un estudio sobre vulnerabilidad y violencia familiar. Boletín Mexicano de Derecho Comparado, XXXVIII (113), 845-867. Recuperado de https://revistas.juridicas.unam.mx/index.php/derecho-comparado/article/view/3843/4800
Radi, B. (2019). Políticas trans y acciones afirmativas en los ámbitos universitarios. Conversaciones necesarias para deshacer el cisexismo. Aletheia, 10(19). https://doi.org/10.24215/18533701E026
Rodríguez-Piñero Bravo-Ferrer, M. (2022). Los contornos de la discriminación. Trabajo, Persona, Derecho, Mercado, (5), 19–27. Recuperado de https://revistascientificas.us.es/index.php/Trabajo-Persona-Derecho-Merca/article/view/20769
UNESCO. (2016). Abierta Mente. Respuestas del sector de educación a la violencia basada en la orientación sexual y la identidad/expresión de género. Recuperado de https://unesdoc.unesco.org/ark:/48223/pf0000244652_spa
Meckel’s diverticulum in the foramen of Winslow as a rare cause of small bowel obstruction
Authors:   Hospital CEMIC. Buenos Aires, Argentina., Goya M. Micaela , Avellaneda Nicolás , Veracierto Federico , Oddi Ricardo , Awruch Javier
Published: November 2023

Meckel’s diverticulum is the most common congenital defect of the gastrointestinal tract. It may remain asymptomatic or may cause acute abdomen requiring surgery due to inflammation, infection or mechanical obstruction. We report case of small bowel obstruction produced by an internal hernia generated by a Meckel’s diverticulum in the foramen of Winslow.
Editorial on: Radiofrequency ablation of primary and metastatic lung tumors: procedural description
Authors:   Hospital Británico de Buenos Aires, Pankl Leonardo G.
Published: November 2023

Lung cancer is one of the leading causes of death worldwide, while surgery is the treatment of choice for localized tumors and early-stage disease. Systemic treatment (with or without radiotherapy) is indicated for patients with advanced disease. Obviously, each patient should be evaluated with a multidisciplinary approach to define the most appropriate treatment for each case, which in many situations consists of a combination of all the options previously mentioned.
Effect size
Authors:   Hospital Alemán de Buenos Aires, Iovaldi Mario Luis
Published: November 2023

There are different measures for effect size to compare 2 means, The most common effect sizes are Cohen’s d, Hedges’ g and Glass’ delta3. I leave relative risk, odds ratios, correlation coefficients, etc., for another occasion because they are beyond the scope of this editorial and I prefer to introduce concepts slowly.
Strategy of Project Based Learning (PJBL) Based on Science, Technology, Engineering and Mathematics (STEM) in Growing Active and Creative Students
Authors: Asep Dudin Abdul Latip  , Asep Supriatna
Published: November 2023

The pandemic forced student learning to change, study at home, many new problems were encountered, one of which was a decrease in student activity and creativity. On the other hand, education in the 21st century must be able to facilitate students who are active and creative, adapting to changes in all situations. The aim of this study is to describe the integration of Project Based Learning based on science, technology, eigeneering and mathematics and its success in increasing creative active students. The method used qualitative case study comes from secondary and primary data, observation, documentation, interviews, and triangulation. The results of the study show that the integration of learning goes through the following stages: Pre-Learning Stage, teachers of several subjects collaboratively prepare various tools relevant to the theme; In the implementation phase, students are given the responsibility of completing a project in several weeks. The first week classifies project assignments, divides into groups, provides material, understands worksheets, listens to video links. Worksheet filling, and procurement of materials. The second week is product creation, the third week is completing work sheets, editing videos, making power points, and sending the results to the link. The fourth week is product improvement, the fifth week is the trial, and the sixth week is the work title; In the post-learning stage, evaluation is carried out, and follow-up, reports, dissemination of subject collaboration teams. Its success has increased students' enthusiastic learning attitudes, student creativity, learning enjoyment, competency improvement, and student project products.
Keywords: Creative Active Student, Project Based Learning, Technology Eigeneering Mathematics
récit qui brûle : la rumeur (À propos de Septembre ardent de William Faulkner)
Authors: Meizoz Jérôme
Published: November 2023

[pas de résumé]
Optical Dispersion Data Analysis of Single Crystal CH3NH3PbBr3 for Optimized Perovskite Solar Cell Active Layer Absorptance
Authors: McCleese Christopher , Brennan Michael , Episcopo Nathan , Sun Lirong , Hong Nina , Ramana Chintalapalle , Grusenmeyer Tod , Stevenson Peter
Published: November 2023

Proper derivation of CH3NH3PbX3 (CH3NH3+ = methyl ammonium or MA+; X- = Cl-, Br-, I-) optical constants is a critical step toward the development of high-performance electronic and optoelectronic perovskite devices. To date, the optical dispersion regimes at, above, and below the band gap of these materials have been inconsistently characterized by omitting or under-approximating anomalous spectral features (from ultraviolet to infrared wavelengths). In this report, we present the rigorous optical dispersion data analysis of single crystal MAPbBr3 involving variable angle spectroscopic ellipsometry data appended with transmission intensity data. This approach yields a more robust derivation of MAPbBr3 optical constants (refractive index, n, and extinction coefficient, k) for both anomalous (absorptance) and normal (no absorptance) optical dispersion regimes. Using the derived optical constants for our MAPbBr3 single crystals, illustrative modeled solar cell device designs are presented in relation to non-realistic designs prepared using representative optical constants reported in the literature to date. In comparison, our derived optical dispersion data enables the modeled design of realistic planar perovskite solar cell (PSC) optical performance where the active layer (MAPbBr3) is optimized for maximum solar radiation absorption. We further demonstrate optimized modeled planar PSC designs with minimal parasitic optical absorptance in non-active PSC device layers resulting in improved performance at broad angles of incidence (approximately 0-70°). Our robust derivation of MAPbBr3 optical properties is expected to impact the optical dispersion data analysis of all perovskite analogs and expedite targeted development of, for example, solar cell, light-emitting diode, photo and X-ray/γ-ray detector, and laser system technologies.
Implementing Protein-Polarized Ligand Charges into Relative Protein Ligand Binding Affinities Calculations
Authors: Sharir-Ivry Avital , Adam Suliman , Kass Itamar , Krepel Zussman Dana , Masarati Gal , Shemesh Dorit
Published: November 2023

A major challenge in computer aided drug design is predicting relative binding energies of different molecules to a target protein using fast and accurate free-energy calculation methods. Free-energy calculations are primarily computed by utilizing classical molecular dynamics simulations based on all-atom force fields (FF) to model the interactions in the system. Present standard classical all-atom FFs contain fixed partial charges on the atoms and hence electrostatic interactions are modeled between them. The parametrization process to determine these partial charges usually relies on quantum mechanics or semi-empirical calculations of the molecule in the gas phase or homogenous water surrounding. These present standard parametrization schemes of the partial charges neglect, therefore, polarization effects from the protein surrounding. The absence of protein polarization effects can lead to significant errors in free energy calculations in proteins. We present a parametrization scheme for the partial charges of ligands, named protein induced polarization (PIP) charges, which account for the electrostatic polarization due to the protein-surrounding. The scheme involves single-point quantum mechanics/molecular mechanics (QM/MM) calculations of the ligand charges in the protein/water surrounding. Using PIP ligand partial charges, we have calculated the relative binding free energies (RBFEs) of well-studied protein-ligand systems. We show here that RBFEs computed with PIP charges are either significantly improved or at least comparable to those computed with non-polarized standard GAFF charges. Overall, we present a simple-to-use parametrization scheme to include protein polarization in any type of binding free energy calculations. The parametrization scheme increases accuracy in RBFE calculations while it does not add significant computation time to standard parametrization procedures.
Machine Learning Prediction of the Experimental Transition Temperature of Fe(II) Spin-Crossover Complexes
Authors: Vennelakanti Vyshnavi , Kilic Irem , Terrones Gianmarco , Duan Chenru , Kulik Heather
Published: November 2023

Spin crossover (SCO) complexes are materials that exhibit changes in spin state in response to external stimuli with potential applications in molecular electronics. It is challenging to know a priori how to design ligands to achieve the delicate balance of entropic and enthalpic contributions needed to tailor a transition temperature close to room temperature. We leverage the SCO complexes from the previously curated SCO-95 data set [Vennelakanti et al. J. Chem. Phys. 159, 024120 (2023)] to train three ML models for transition temperature (T1/2) prediction, using graph-based revised autocorrelations as features. We perform feature selection using random forest-ranked recursive feature addition (RF-RFA) to identify the features essential to model transferability. Of the ML models considered, the full feature set random forest (RF) and recursive feature addition RF models perform best, achieving moderate correlation to experimental T1/2 values. We then compare ML T1/2 predictions to those from three previously identified best- performing density functional approximations (DFAs) which accurately predict SCO behavior across SCO-95, finding that the ML models predict T1/2 more accurately than the best-performing DFAs. In addition, we study ML model predictions on the set of 18 SCO complexes for which only estimated T1/2 values are available. Upon excluding outliers from this set, the RF-RFA RF model shows strong correlation to estimated T1/2 values with a Pearson’s r of 0.82. In contrast, DFA-predicted T1/2 values have large errors and show no correlation to estimated T1/2 values over the same set of complexes. Overall, our study demonstrates reasonable performance of ML models in comparison to some of the best-performing DFAs, and we expect ML models to improve further as larger data sets of SCO complexes are curated and become available for model training.
Photocage Chameleon: Bond Scission by a Single Photon Above 800 nm
Authors: Russo Marina , Janeková Hana , Meier Debora , Generali Melanie , Stacko Peter
Published: November 2023

Photocages enable scientists to seize full control over the activity of molecules using light as a biocompatible stimulus. Their emerging applications in photoactivated therapies call for efficient uncaging in the near-infrared (NIR) window which represents a fundamental challenge. Here we report synthetically accessible cyanine photocages that liberate alcohol, phenol, amine, and thiol payloads upon irradiation with NIR light up to 820 nm in aqueous media. The photocages display unique chameleon-like behavior and operate via two distinct uncaging mechanisms – photooxidation and heterolytic bond cleavage. The latter process constitutes the first example of a direct bond scission by a single photon ever observed in cyanine dyes, or at wavelengths exceeding 800 nm. Modulation of the beating rates of human cardiomyocytes that we achieved by light-actuated release of adrenergic agonist etilefrine at nanomolar concentrations and low NIR light doses (~12 J cm-2) highlights the potential of these photocages in biology and medicine.
Boosting the biodegradation and bioactivity of PBS-DLS copolymers via incorporation of PEG
Authors: Zarei Moein , Michalkiewicz Beata , El Fray Miroslawa
Published: November 2023

Biodegradable polymers play a crucial role in the development of materials for biomedical applications. This study investigates the enzymatic biodegradation, bioactivity, and cytotoxicity of poly(butylene succinate-dilinoleic succinate) (PBS-DLS) copolymers modified with poly(ethylene glycol) (PEG). Two copolymer variations with different segmental compositions (70 wt% and 60 wt% of hard segments) were synthesized. After modifying the copolymers with PEG, the presence of a lipase catalyst accelerated degradation after 20 days, evidenced by reduced residual content. Gel permeation chromatography analysis showed up to 40% decrease in molecular weight, while gravimetric analysis indicated a mass loss of up to 10% during enzymatic degradation. Morphological examination revealed that the enzymatic breakdown, facilitated by hydrolase activity (boosted by the presence of PEG), resulted in surface erosion, holes, cracks and changes in spherulitic morphology. It highlights the tunable degradation pathways of these copolymers. Bioactivity studies demonstrated the formation of biomimetic calcium/phosphate (Ca/P) crystals, with varying stoichiometry based on segmental composition. Copolymers with higher crystallinity (70 wt% hard segments) favored tricalcium phosphate-like crystal formation, while those with lower crystallinity (60 wt% hard segments) were more susceptible to hydroxyapatite precipitation. In vitro cytotoxicity tests using mice fibroblasts exhibited excellent cell viability and attachment for all copolymers. These findings highlight the significance of these copolymers in developing biodegradable materials for medical applications. The ability to control degradation through PEG modification, along with their bioactivity and cell compatibility, positions them as promising candidates for diverse biomedical applications.
FOLKLOR MUSICAL E IDENTIDAD CHILENA EN LA ARAUCANÍA. TRADICIÓN, HEGEMONÍA Y MODERNIDAD (1860-1960)
Authors: Órdenes Mathias
Published: November 2023

El libro aborda el período que transcurre desde la segunda mitad del siglo XIX, cuando el Estado puso en marcha el proceso de ocupación territorial de La Araucanía (1862-1883), hasta finalizar la década de 1950, en los años previos a la reforma agraria. Comprende, así, un largo ciclo en el que las condiciones estructurales no permitían que estallaran aún los conflictos generados por la propiedad de la tierra y la colonización de La Araucanía, quedando medianamente sometidos los conflictos hegemónicos e identitarios generados en espacios concretos de modernización y colonización del territorio mapuche.
Survey of millets explored for the traditional food and medicine by the Rural Inhabitant of Salem District, Tamil Nadu-India
Authors: K. Venketasan  , Mohd Asif  , Parwez Ahmed  , Kabiruddin Ahmed  , N. Zaheer Ahmed
Published: November 2023

This study investigated communication traits influencing awareness and adoption of recommended small millet cultivation practices among tribal millet farmers in the Salem District's Kolli hills and Salem forest divisions, Eastern Ghats of Tamil Nadu. Data, collected through personal interviews and informal discussions, aimed to address agrarian and nutritional challenges, emphasizing the potential of millets in dry lands for increased grain production. Millets, climate-resilient and nutritionally rich, offer benefits such as gluten-free composition, phytochemicals, and micronutrients crucial for immune function. Traditionally cultivated by Malayali tribes, millets exhibit medicinal and nutraceutical properties, contributing to the prevention of various health issues. The study highlights the rising interest in millets among scientists, technologists, and nutritionists, emphasizing their potential for value addition and processing to create ready-to-eat items. This not only benefits the masses but also provides income opportunities for rural and tribal farmers, promoting food security, employment, and revenue generation. Researchers focus on innovative approaches to enhance millet production, further underlining its significance in addressing current agricultural and nutritional challenges.Top of Form
On the Issue of the Formation of Football Infrastructure in Sofia in the Late 19th and Early 20th Centuries
Authors: Mykolenko Dmytro
Published: November 2023

One of the main components of the football industry today is its infrastructure. Training facilities, stadiums with stands for spectators, sports bases, retail outlets, museums of various teams and clubs all play key roles in the sport. In Britain, such amenities began to appear in the first half of the 19th century, in continental Western Europe — around the mid-1800s, and in the central and eastern parts of the Old World — even later, at the turn of the 20th century. The development of football infrastructure in Sofia is an illustrative example not only in the context of one city or country, but also for the region as a whole. Since in the late 19th and early 20th centuries the capital of Bulgaria saw the formation of traditions which determined the subsequent development of the city’s sports infrastructure, through this case study we can trace from where the complex of ideas related to establishing suitable sports facilities spread to Bulgaria and Southeastern Europe, how the process of formation and accumulation of knowledge in this specialized sphere unfolded, and how such facilities were actually built. The initiative to set up sports grounds belonged to Bulgarian educational institutions and societies, and such projects were financed by club members. The social groups that played the decisive role in the transfer of knowledge to the sports industry, namely to the construction of football playing grounds, were local youth with the experience of studies abroad and foreign teachers who worked in Bulgaria. The main routes of diffusion of this type of information originated in Switzerland and the Ottoman Empire. It was from these countries that the capital of the Balkan state received knowledge about the existing norms and rules for the construction of football fields. However, unlike in other European cities during this period, the sports infrastructure in Sofia in the late 19th and early 20th centuries did not yet become a component of business projects aiming to make a profit from renting out such facilities or from selling tickets to football fans.
Challenges Facing Enforcement of University Quality Assurance Standards in Fostering Compliance in Tanzania
Authors: Mrema Daudi , Ndayambaje Irénée , Ntawiha Philothère , Ndabaga Eugene
Published: November 2023

Compliance with quality assurance standards worldwide requires universities to be strongly enforced by external and internal quality assurance bodies. Tanzania, as in the case of other countries, enforces quality assurance standards through national and institutional quality assurance bodies. Despite such efforts, non-compliance cases are still found at various university stakeholders’ levels. This study explored the challenges in enforcing quality assurance standards to foster universities’ compliance in Tanzania. The qualitative approach and multiple embedded case study design informed the study. Data was collected from the four public and private universities involving 46 participants who were purposively selected. In addition, data was gathered through focus group discussions, individual interviews and documentary reviews and then analyzed by content analysis. The study found that academics' resistance to quality monitoring of teaching, financial challenges, inadequate quality assurance awareness, quality assurance officers acting as police officers, underestimating the quality of tests, and lack of detailed national guidelines for some enforcement initiatives were the challenges encountered in enforcing quality assurance standards. Such challenges impede the successful enforcement of quality assurance standards. Therefore, they contribute to the universities' non-compliance cases. As such, this study recommends that national and institutional quality assurance bodies continue educating and guiding their stakeholders about the essence of quality assurance standards and how to implement each enforcement initiative to foster compliance. Also, universities must keep searching for multiple sources of funds to enhance their financial stability and sustain quality assurance standards.
Teachers’ Perceptions of the DBR-CPD Program as a Change in Pedagogical Practice in the Professional Development of EFL Teachers
Authors: Al-Wadi Hasan
Published: November 2023

Facilitating change in teaching pedagogical practices through designed school-based research projects (DBR) offer teachers the opportunity not only to make change in their teaching sustainable but also to construct a professional perception framework that leads to said change. This paper investigates how the teachers of English as a foreign language (EFL) or second language (ESL) perceive the change process in their pedagogical practices during their involvement in a DBR programme that aimed to develop their teaching to improve their students’ literacy skills. The data was gathered by implementing a mixed-methods study through the use of questionnaires and interviews. The results indicate that there are main factors that govern the process of the change in perception for the EFL/ESL teachers during their professional development program as non-native teachers of English, including contextualisation, diversity and the innovation levels of the pedagogical practices in the non-native English-speaking context.
Exploring the Augmented and Alternative Communication (AAC) for Promoting Independence in Daily Skills of Students with Learning Disabilities
Authors: Zaharudin Rozniza , Ashikin Izhar Nurul , Lai Hwa Deekha
Published: November 2023

Augmented and alternative communication (AAC) mobile apps are increasingly being used to support students with learning disabilities in developing their communication and daily skills. Mobile AAC apps offer portability, user-friendliness and customisation that enables students with learning disabilities to communicate by using symbols, pictures and words for clear expression. This study investigated the experiences of two teachers with AAC mobile apps in promoting daily skills among students with learning disabilities. Semi-structured interviews were conducted with the teachers, exploring their perspectives on the effectiveness of specific AAC mobile app features. The interview questions were adapted from the Mobile Application Rating Scale (MARs). The findings revealed that AAC mobile apps featuring these features were particularly effective in assisting students with learning disabilities in developing their daily skills. The teachers highlighted the benefits of AAC mobile apps in enhancing communication, promoting independence and facilitating the acquisition of essential daily skills. This study contributes valuable insights into the practical application of AAC mobile apps in educational settings and emphasise the significance of customisable features to cater for the individual needs of students with learning disabilities. Additionally, the study highlights the need for further research to explore the long-term impact of AAC mobile apps on the communication and daily skills development of students with learning disabilities. The findings of this study have the potential to inform the development and implementation of innovative AAC mobile app-based interventions for students with learning disabilities to help these students to achieve their full potential and become independent.
Tecnologías Visuales Disciplinarias:
Authors: Olivari María Cecilia
Published: November 2023

El punto de partida es la producción de artefactos culturales nuevos que se apropian, procesan o editan materialidades documentales, entendiendo a los primeros como propuestas de desclasificación artística que apelan a múltiples estrategias materiales y visuales para elaborar el archivo en formatos–obra. El objetivo de este artículo radica en problematizar los usos de los archivos fotográficos en el arte contemporáneo a partir del estudio de casos, e indagar en la fotografía como práctica y como tecnología de subjetivación en el contexto colonial. Para ello se propone un recorrido que demarca los desarrollos fotográficos como tecnología moderna, que repara en los acervos interpelados por las artistas y que, finalmente, reflexiona sobre los desplazamientos y las críticas propuestas.