bluuebunny/crossref_metadata_2025 huggingface dataset:
Microfluidic-driven short peptides hydrogels with optical waveguiding property
Authors: Garcia Ana M. , Garcia-Romero Juan A. , Mejias Sara H. , Prieto Pilar , Saggiomo Vittorio , Velders Aldrik H. , Soriano M. Laura , Ruiz-Díez Victor , Cabanillas-González Juan , Gomez M. Victoria
Published: December 2023

Soft photonic elements with optical waveguiding ability based on biocompatible hydrogels have become increasingly important in optical techniques for medical diagnosis and phototherapy, among others. Supramolecular hydrogels based on peptides with interesting optical properties are rarely reported and explored. Although robust crystals based on short peptides have shown optical waveguiding capabilities, their rigidity is the main issue to overcome in the quest for soft biocompatible materials. Here, we report on a microfluidic-assisted formation of a heterochiral short peptide hydrogel that exhibit active optical waveguiding property thanks to the incorporation of two different dyes, Thioflavin T and Rhodamine B, in the hydrogel structure. Using our microfluidic platform, different parameters such as concentration of peptide, type of dye and its concentration, and flow rate have been rapidly explored, with remarkable low reagents consumption. In this way, it was possible to develop peptide hydrogel waveguides with good optical loss values, modulating the emission in diverse spectral regions. The use of microfluidics to prepare these hydrogels makes possible the preparation of structures of high length-to-diameter aspect ratio, which otherwise are hard to devise from bulk conditions. Overall, this work broadens the use of supramolecular self-assembly of peptides to create functional materials with additional versatility to polymeric hydrogels, thanks to the possibility of tuning structure by changing amino acids sequence. Additionally, the optical properties can be easily modulated by quick optimization of experimental parameters via microfluidic technology.
Machine Learning Guided AQFEP: A Fast & Efficient Absolute Free Energy Perturbation Solution for Virtual Screening
Authors: E. Crivelli-Decker Jordan , Beckwith Zane , Tom Gary , Le Ly , Khuttan Sheenam , Salomon-Ferrer Romelia , Beall Jackson , Gomez-Bombarelli Rafael , Bortolato Andrea
Published: December 2023

Structure-based methods in drug discovery have become an integral part of the modern drug discovery process. The power of virtual screening lies in its ability to rapidly and cost-effectively explore enormous chemical spaces to select promising ligands for further experimental investigation. Relative Free Energy Perturbation (RFEP) and similar methods are the gold standard for binding affinity prediction in drug discovery hit-to-lead and lead optimization phases, but have high computational cost and the requirement of a structural analog with a known activity. Without a reference molecule requirement, Absolute FEP (AFEP) has, in theory, better accuracy for hit ID, but in practice, the slow throughput is not compatible with VS, where fast docking and unreliable scoring functions are still the standard. Here, we present an integrated workflow to virtually screen large and diverse chemical libraries efficiently, combining active learning with a physics-based scoring function based on a fast absolute free energy perturbation method. We validated the performance of the approach in the ranking of structurally related ligands, virtual screening hit rate enrichment, and active learning chemical space exploration; disclosing the largest reported collection of free energy simulations to date.
Fifth-grade Students’ Science Competencies – An Opportunity to Rethink Further Education for Science Competence
Authors: Purkat Matija , Devetak Iztok
Published: December 2023

This paper deals with the science competences of fifth-grade students (ages 10 and 11 years) in Slovenia. The science content researched in this study comprises chemical concepts, such as aqueous solutions, states of matter, and nutrition. The science competence and science competencies that elementary school students are supposed to develop are defined. In the following, the concept of attitude towards science and its role in the construct of science competence is explained. The three components of science competencies of the 10- and 11-year-old students were measured using a knowledge test to cover content and procedural knowledge and a questionnaire to measure the attitude of students towards science. The findings reveal that procedural knowledge is the least developed among students. It is also confirmed that attitude components have an important role in interpreting overall science competency test achievements. In the conclusion, the holistic view of the development of science competencies (knowledge, skills, and attitude) is emphasised. Further study of the attitudes towards science in relation to science competence development in a broader way is suggested.
The thermostability of temulawak extract encapsulation with several coating
variations of sodium tripolyphosphate and chitosan
Authors: Rosidi A. , Farha R. , Jauharany F.F. , Sulistyaningrum H. , Firtriyanti A.R. , Nurhidajah  , Sulistyowati E. , Lahdji A.
Published: December 2023

Temulawak (Temulawak zanthorhiza Roxb) is a rhizome plant that contains curcuminoid
compounds (curcumin, demethoxycurcumin, and bisdemethoxycurcumin) and essential
oils. Curcumin is unstable to heat, hence it is encapsulated to increase its thermostability
of curcumin. Encapsulation was made using the freeze-drying method. The study used a
completely randomized design method with two factors, namely variations in coating and
temperature. This study aimed to produce encapsulation of Temulawak extract with the
best thermostability. The variation of the coating used is the concentration of chitosan and
sodium tripolyphosphate (STPP) (g/mL), (0.1%: 0.05%), (0.2%: 0.1%), (0.3% : 0 .15%),
and (0.4%: 0.2%), and the addition of tween 80. The thermostability method used
immersion samples at temperatures of 30°C,40°C,50°C,60°C,70°C, and 80°C with the
parameter of the amount of curcumin released which was measured using a UV-VIS
spectrophotometer at a wavelength of 425 nm. Encapsulation of Temulawak extract and
heating temperature were significantly different from curcumin content. After 80°C heat
treatment for 20 mins, Curcuma extract in formula 1 coating with 0.1% chitosan and
0.05% STPP had the highest residual curcumin.
La prostitución en la dictadura franquista: una aproximación a la Junta Provincial de Barcelona entre los años 1943 y 1956
Authors: Velo i Fabregat Elisabet
Published: December 2023

La prostitución es, y ha sido, una actividad perseguida en nombre de la moralidad pública. Desde principios de siglo XX, se han creado y modificado diferentes instituciones que han tenido como propósito diferentes objetivos en torno a la salvaguarda de la moralidad femenina. Además, también se persiguió la “trata de blancas”, esto es, el tráfico de mujeres y menores para el ejercicio de la prostitución, que años más tarde pasaría a denominarse “trata de personas”. En este trabajo se repasará la trayectoria de estas instituciones, poniendo especial énfasis en la Dictadura franquista y aproximándonos a la Junta Provincial de Barcelona para la Protección de la Mujer desde su creación en 1943 y hasta 1956, año en el que se aprobó la ley de abolición de la prostitución. La reciente publicación de su fondo de archivo permite comprobar diferentes cuestiones de interés, como son sus expedientes de información, así como sus memorias y las estadísticas que dan testimonio de una actividad intensa hasta entrada la democracia y, con ella, la extinción del Patronato.
Memoria-historia: el cómic como espacio dialógico
Authors: Alary Viviane
Published: December 2023

Resumen: ¿Cómo media la historieta para contar la Historia desde una memoria determinada por un contexto propicio a su expansión? Viendo lo que es nuevo en el modo de contar y fabricar habituales, este artículo ahonda en el análisis de la aptitud y habilidades de la historieta para superar una visión dual, entretejiendo los hilos de la memoria y de la historia en un todo complejo, combinatoria de materiales heterogéneos y multimodales. El artículo se basa en algunas obras representativas del área cultural hispánica. Se hace hincapié en la peculiaridad del anclaje intermedial, en el valor y el tratamiento de las fuentes y el archivo durante el proceso de creación.

Résumé : Comment la bande dessinée médiatise-t-elle le récit de l'histoire à partir d'une mémoire déterminée par un contexte propice à son expansion? Examinant ce qui est nouveau dans la manière habituelle de raconter et de fabriquer, l’article se penche sur l'aptitude de la bande dessinée à surmonter une visión duelle par sa capacité à tisser les fils de la mémoire et de l'histoire en un tout complexe, une combinatoire de matériaux hétérogènes et multimodaux. L’article repose sur des analyses ponctuelles d’oeuvres représentatives de l’aire culturelle hispanique. L'accent est mi sur la singularité de l'ancrage intermédial, sur la valeur et le traitement des sources et de l’archive lors du processus de création.
Cuando lo personal es colectivo
Authors: Pérez García Juan Carlos
Published: December 2023

Resumen: Los cambios sociales, políticos y culturales de España en las últimas décadas han condicionado el tratamiento de la memoria colectiva sobre el trauma nacional que marcó la historia del país en el siglo XX, la Guerra Civil y sus consecuencias. Entre finales de los noventa y principios del XXI comienza a percibirse un giro cultural en el tratamiento de esa memoria en las artes españolas. El cómic español también lo refleja a lo largo de la década 2000-2010, como se abordará en este artículo con herramientas de análisis de los estudios de memoria, la historia, la sociología, la historia del arte y las bellas artes. Obras colectivas como Nuestra Guerra Civil y Guernica variaciones Gernika y novelas gráficas como Cuerda de presas, 36-39-Malos tiempos, Las serpientes ciegas, Sordo, El hijo, El arte de volar y otras, con la obra precursora, a finales de los noventa, Un largo silencio.

Abstract: The social, political and cultural changes that Spain has undergone in recent decades have conditioned the way in which the collective memory about the national trauma that marked the country's history in the 20th century, namely the Civil War and its consequences, have been dealt with. Starting between the end of the 90s and the beginning of the 21st century, a cultural turn in the treatment of such memory in the Spanish arts can be perceived. Spanish comics also reflect this shift throughout the 2000-2010 decade, as this article addresses with analytical tools from memory studies, history, sociology, art history, and fine arts. This paper will focus on collective works such as the albums Nuestra Guerra Civil and Guernica variaciones Gernika, as well as graphic novels such as Cuerda de presas, 36-39. Malos tiempos, Las serpientes ciegas, Sordo, El hijo, El arte de volar and others, and the pioneering work —at the end of the nineties— Un largo silencio.
Parenting adolescents: Parent-Teen communication training
Authors: Fitriana Efi , Fadillah Syipa Husni , Abidin Fitri Ariyanti
Published: December 2023

Puberty is often experienced by adolescents in relation to psychological changes, including letting go of dependence on parents to achieve greater independence. Adolescents begin to spend more time with their friends, and share less information with their parents. However, support and direction from parents are still needed by adolescents, considering that they will grow into adults with all the complexity of their problems. So parents need to understand the changes that adolescents are experiencing, and how to assist adolescents in dealing with these changes. "Parenting Adolescents: Parent-Teen Communication Training" is aimed to increase parents' understanding of the characteristics of adolescent development and how to communicate with adolescents. The training was conducted through three stages, preparation, implementation, and follow-up. There were 38 parents who have children aged 12-23 years attended training. The training was held face-to-face on Saturday, July 29, 2023, at Madrasah Thosin Cikopo, Cipacing Village, Jatinangor District. "Parenting Adolescents: Parent-Teen Communication Training" was considered fun and useful by parents who have teenage children. The parents were satisfied with the material provided, which was in accordance with their needs.
Training in electrical canting for children with special needs to improve batik quality
Authors: Setyorini Noni , Menarianti Ika , Nastiti Prianka Ratri , Rosidah Inayatur , Dinata Daffa Arya
Published: December 2023

“Asal Batik” SMEs help children with special needs by teaching them how to make batik, a traditional cloth. These children often face challenges in society, so this community service program aims to equip them with important batik skills, encouraging independence and inclusiveness. The process of making batik is made simple so that it is easy for children with special needs to follow. However, SMEs involved in batik production face challenges such as limited production scale and insufficient infrastructure. To overcome this problem, this community service introduced electric canting to increase production and facilitate marketing on a larger scale. In addition, support is provided in the form of funds, equipment, and materials to increase overall production capacity. The efforts made by “Asal Batik” SMEs have resulted in positive changes. There has been a marked increase in both production levels and the variety of batik products, thanks to advances in electronic batik equipment which makes it easier for children with special needs to participate. This shows the positive impact of community service in helping children become economically empowered and socially involved.
Use of MOCAF flour as raw material for healthy and hygienic lakar crackers in N&N MSMEs
Authors: Muhaimin Muhaimin , Chaerunisaa Anis Yohana , Milanda Tiana , Maisyarah Intan Timur , Lestari Uce , Dewi Mayang Kusuma , Mardiana Lia , Erlianti Karina
Published: December 2023

In the vicinity of NN Micro, Small, and Medium Enterprises (MSME) in Jatiroke Village, Sumedang, West Java, cassava plantations abound, yet their harvest is often undervalued and sold at low prices. To enhance economic value, cassava from Jatiroke Village is now being processed into Modified Cassava Flour (MOCAF) for use as a primary ingredient in lakar cracker production at NN MSME. Previously, wheat and tapioca flours were sourced from the market for cracker production. The objective of this Community Partnership Empowerment (CPE) initiative is to replace wheat flour with locally processed MOCAF, diversifying food ingredient sources using available resources. MOCAF is not only gluten-free but is also deemed safe for consumption, especially for those with autoimmune diseases, memory loss, and autism. The CPE program includes training on MOCAF flour production and hands-on experience in making lakar crackers with MOCAF as a core ingredient. This comprehensive effort aims to promote NN MSME's growth by incorporating innovative technology for the production of healthy and hygienic crackers, thereby benefiting public health, particularly individuals with autoimmune conditions. This strategic shift not only holds economic promise but also contributes to the well-being of the community.
Training on making biopesticides as effort to strengthen organic agriculture by Taruna Tani Lestari
Authors: Damascena Arthaka , Kusumaningrum Divanissa , Widiyanti Emi , Fitriana Ines , Mukti Lintang , Bagyo Perdana Mangayu , Fairuz Rival , Fajrin Salsyabila , Suryowidhi Samuel
Published: December 2023

Pests are one of the problems in agriculture. The use of organic pesticides still needs to be developed in Gentungan Village. Training in making biopesticides is useful for controlling pests and diseases using environmentally friendly natural ingredients. In addition, to foster the ability of Taruna Tani Lestari in Gentungan Village to make biopesticides independently and disseminate them to local farmers. The implementation method involved presentations, questions and answers, practices, modules, and evaluation designs. The material presented included the meaning and benefits of biopesticides, the natural ingredients used, the correct dosage, and the stages of making biopesticides. After the training, the output obtained included members of Taruna Tani Lestari knowing the natural ingredients for making biopesticides, members of Taruna Tani Lestari understanding the benefits of using biopesticides, members of Taruna Tani Lestari being able to make biopesticides independently and educate local farmers and display biopesticide products.
Upgrading videography knowledge and skills in making Canva-based learning videos for elementary school teachers
Authors: Wijayanti Sri Hapsari , Harrison Alfonso , Dhian Yohanna Claudia , Jessica Theodora , Theresia Margaretha
Published: December 2023

Utilizing videos as a learning tool is known to enhance motivation. To create more professional learning videos, understanding videography techniques is crucial. The Canva application, widely popular today, aids education by facilitating the design of engaging learning videos. Unfortunately, teachers in the Teacher Working Group (KKG) Cluster 10, Cisauk District, lack proficiency in using Canva, particularly in crafting learning videos. The community service aims to enhance the knowledge and skills of 28 participants from 9 public elementary schools and 1 private elementary school in Cisauk District, focusing on videography techniques and Canva application operation. Scheduled from September to October 2023 at SDN Suradita, the activity involves preparation, training, assignments, and concludes with monitoring and evaluation. Evaluation results indicate a 30% increase in teachers' knowledge and a 4.6% boost in insight into videography and Canva. Similarly, teachers' proficiency in crafting learning videos with Canva improves. However, limited activity time prevents teachers from applying videography techniques with complete camera devices. The next step involves testing Canva-produced learning videos to gauge their impact on student learning outcomes and motivation.
Optimizing parental care in preventing bullying behavior in children in Wonokromo Surabaya Village
Authors: Hidaayah Nur , Budury Syidatul , Purwanti Nunik , Susantri Mery
Published: December 2023

Parents who do not teach or model positive behavior to their children are at risk of forming children who have a tendency to bully other children. In addition, if parents do not consistently give consequences to children when they make mistakes or break the rules, it will increase the possibility of children being at risk of bullying. The community service aims to increase parents' understanding and attitude towards parenting in preventing bullying in children. Educational activities on proper parenting in preventing bullying in children are carried out offline with hands-on practice, discussion, and questions and answers. Media PowerPoints, leaflets, and daily notebooks have been given to 20 parents in the Wonokromo Surabaya Village area. Initial and final evaluation using questionnaires distributed before and after education to determine the level of parental knowledge of bullying. Data were processed by frequency distribution. There was an increase in understanding shown by almost all participants showing positive parenting attitudes in preventing bullying behavior in children. Education is only carried out once a time, so the change in parents' attitudes is not entirely positive. Therefore, there is a need for follow-up with in-depth evaluations regarding child care that the team continues to carry out.
Health promotion strategy for emergency choking at Elementary School Gisik Cemandi Sidoarjo
Authors: Sari Ninik Ambar , Rustini Sri Anik , Widyastuti Merina , Priyantini Dwi , Nurhayati Ceria
Published: December 2023

Choking is the entry of a foreign object into the throat or respiratory tract. This is a dangerous condition that can happen to anyone. In cases of choking in children, the initial treatment that can be done is back blows and chest thrusts. This activity was carried out to provide Health Education to students and teachers at SDN Gisik Cemandi Sidoarjo, as well as to gain skills in helping children and the community in their environment if a child experiences a choking incident. The implementation method is carried out in the form of a lecture using power points, posters with pictures of signs of choking, and how to handle it independently, and the Heimlich Maneuver. The results of the activity were that participants received information and increased their knowledge regarding the signs of choking, and how to handle it independently as well as the Heimlich Maneuver to students and teachers at SDN Gisik Cemandi Sidoarjo on November 11, 2023. The results of the socialization on handling emergency choking carried out at SDN Gisik Cemandi Sidoarjo were considered effective so that students and teachers are able to provide first aid in cases of choking.
EDITORIAL RCH 13 YEARS
Authors: Almeida Anderson
Published: December 2023

EDITORIAL RCH 13 YEARS
The islands of the São Francisco river: jurisdiction conflicts in the establishment of an internal border in Portuguese America (1732-1758)
Authors: Curvelo Arthur Almeida Santos de Carvalho
Published: December 2023

Versão em inglês.
Manumissions in Penedo, Alagoas: local context, national issues (1840s to 1880s)
Authors: Teixeira Luana
Published: December 2023

Versão em inglês.
DALMA VE TEL EROZYON İLE İŞLENEN GEOMETRİLERİN İŞLEME PARAMETRELERİNDE OLUŞAN YÜZEYLERİN DENEYSEL OLARAK İNCELENMESİ
Authors: DAŞ Taylan , ISIK Yusuf , CAN Oguzhan
Published: December 2023

Bu çalışma, Inkonel 718 ve Ti-6Al-4V malzemelerine tel erozyon ve dalma erozyon ile kare ve silindirik geometrili delik formu işlemleri yapılarak, EDM parametrelerinin yüzey kalitesine etkileri ve en iyi yüzey kalitesine ulaşmak amaçlanmıştır. Havacılık endüstrisinde kullanım alanları artmakta olan Inkonel 718 ve Ti-6Al-4V malzemelerin tok ve sert özelliklerinden dolayı talaşlı imalat ile üretim sürecinde takım sarfiyatının artmasına neden olmaktadır. Ayrıca talaşlı imalat sonrası elde edilen yüzey kalitesi, elektro erozyon ile elde edilen yüzeyden daha kötü olduğu için dalma erozyon ve tel erozyon gibi alışılmamış imalat yöntemleri bu çalışmada tercih edilmiştir. Değişken dalma erozyon parametreleri olarak; darbe süresi (Ton), bekleme süresi (Toff) ve servo – kontrol voltajı, sabit olarak servo ilerleme hızı alınmıştır. Değişken tel erozyon parametreleri olarak SF (kesim hızı), sabit parametreler olarak MAO (Mikroark oksidasyon), WP (su basıncı), tel çapı alınmıştır. Deneylerde tel erozyon için 0.25 mm çapında pirinç tel kullanılmıştır. Dalma erozyonda 8 mm çapında bakır elektrot kullanılmıştır. Deneyler sonucunda numunelerin yüzeyleri SEM mikroskobunda incelenmiştir. Sonuç olarak, farklı özelliklere sahip malzemelerde tel erozyon ve dalma erozyon işlemleri sonucunda oluşan yüzeylerdeki değişimler işlem parametrelerine bağlı olarak değerlendirilmiş ve tartışılmıştır.
Bir mekanik jiroskopun yalpalama tahmininde uzun kısa süreli bellek ağı yaklaşımı
Authors: KACAR İlyas
Published: December 2023

Mekanik jiroskoplar, ürettikleri jiroskopik tork sayesinde hava ve uzay araçları gibi tamamen asılı duran araçlara yön vermek için kullanılmaktadır. Kara araçlarında da tek veya iki tekerlekli araçların otonom dengesi için kullanılmaktadır. Her ne kadar uzun yıllardır regresyonlar mevcut veriyi modelleme amaçlı kullanılagelen bir yöntem olmuşsa da son yıllarda makine ve derin öğrenme yöntemlerinin sınıflama, modelleme konularında yüksek başarıya sahip oldukları görülmüştür. Bu çalışmada bir derin öğrenme yöntemi olan uzun kısa süreli bellek ağı kullanılarak mekanik bir jiroskopun yalpalama hızı tahmin edilmiştir. Elde edilen modelde RMSE 0.0055 rad/s iken ME değeri -0.0012 rad/s ve R 0.9998 olup model çıktısı ile veri seti arasında yüksek ilişki mevcuttur. Bu hali ile derin öğrenme yöntemlerinin mekanik jiroskop tasarımlarında kullanılması fayda sağlayacaktır.
Farklı Priz Hızlandırıcı Katkıların Püskürtme Beton Performansına Karşılaştırmalı Analizi
Authors: POLAT Hasan , ÖZEL Cengiz
Published: December 2023

Dayanım, aderans, donma/çözülme ve aşınma direnci özelliklerini iyileştirmek ve geri tepmeyi azaltmak için püskürtme betona çeşitli priz hızlandırıcı katkı maddeleri ve karışımlar eklenir. Priz hızlandırıcılar hem kuru hem de ıslak karışım püskürtme beton uygulamalarında giderek daha fazla kullanılmaktadırlar. Priz hızlandırıcılar, erken yaş dayanımı artırmak, tozu ve geri tepmeyi azaltmak için kuru karışım uygulamalarında yaygın olarak kullanılırken, ıslak karışımda hızlı sertleşme ve erken mukavemet elde etmek için kullanılırlar. Yapılan bu çalışmada ıslak karışım püskürtme betonlarda kullanılan sıvı priz hızlandırıcı katkıların optimum değerleri araştırılmıştır. Priz hızlandırıcı katkı miktarı kullanılan çimento miktarının %0 (kontrol), %2, %4, %6 ve %8 oranlarında kullanılarak püskürtme beton numuneleri üretilmiştir. Üretilen numuneler üzerinde, priz süresi tayini, basınç dayananımı (1gün, 7gün, 28 gün) deneyleri yapılmış ve iç yapı analizleri ile incelenmiştir. Çalışmada çimento olarak CEM I 42,5 R tipi çimento kullanılmış olup, katkı olarak alkali içeren ve içeremeyen iki farklı kimyasal katkı kullanılmış, su/çimento oranı 0,32 olarak sabit tutulmuştur. Yapılan deneyler sonucunda, alkali içeren katkılarda %4’den yüksek, alkali içermeyen katkı türünde ise %8’den yüksek katkı kullanımın uygun olduğu belirlenmiştir. Ayrıca 1 ve 7 günlük basınç dayanımlarında priz hızlandırıcı katkı etkisinin bariz bir şekilde görüldüğü 28 günde ise kontrol betonun basınç dayanımına göre yaklaşık %22 oranında bir azalma meydana geldiği görülmüş olup yapılan içyapı analizleriyle bu durum desteklenmiştir.
Çok Fonksiyonlu DDCC+ Tabanlı Akım-Modlu Dört Bölgeli Çarpma Devresi
Authors: UNUK Tayfun
Published: December 2023

Bu makalede translineer devre teorisi kullanılarak pozitif tip Diferansiye Fark Akım Taşıyıcı (DDCC+) ve BJT tabanlı çok fonksiyonlu dört bölgeli akım modlu çarpma devresi önerilmiştir. Devreye ait çıkışların teorik analizlerinin ardından SPICE programında benzetimi yapılmıştır. Benzetim sırasında CA 3046 ve 0.18 µm TSMC CMOS teknoloji parametreleri kullanılmıştır.
Faz Değişim Malzemelerinde Kullanılan İnorganik Nanomalzemelerin Multımoora Yöntemiyle Önceliklendirilmesi
Authors: AKGÜN Hasret , TURAN Ece , ÖZKAN Aysun , GÜNKAYA Zerrin , BANAR Mufide
Published: December 2023

Faz değişim malzemeleri (Phase Change Materials (PCM)), özellikle devamlı ulaşılamayan yenilenebilir enerji kaynaklarını depolayarak ve talep edildiğinde kullanılmasını sağlayarak yenilenebilir ve sürdürülebilir enerji sağlar. PCM’lerin termal enerji depolamada istenilen termodinamik, kinetik, kimyasal ve ekonomik özellikleri bir arada tek başına karşılayamamalarından dolayı farklı nanomalzemeler ile desteklenmektedir. PCM’in özelliklerini geliştirmek için kullanılan nanomalzemelerin seçimi için kritik parametreler mevcut olup, bu çalışmada inorganik nanomalzemelerin önceliklendirilmesi amaçlanmıştır. Bu noktada Çok Kriterli Karar Verme (Multi Criteria Decision Maker (MCDM)) metodolojisi oldukça kullanışlıdır. Bu çalışmada, PCM'lerde kullanılabilecek 5 farklı inorganik nanomalzeme (bakır oksit, aluminyum oksit, gümüş, titanyum oksit ve bor nitrürün) önceliklendirilmesi için Oran Analizine Dayalı Çok Amaçlı Optimizasyon Yöntemi (MULTIMOORA) kullanılmıştır. Erime noktası değişimi, gizli ısı değişimi, termal iletkenlik değişimi, ön işlem gereksinimi, toksisite ve maliyet olmak üzere 6 değerlendirme kriteri belirlenmiştir. Kriter ağırlıkları sırasıyla entropi (objektif yöntem) ve sıralama (subjektif) yöntemleriyle belirlenmiştir. Her iki kriter ağırlıklandırma yöntemine göre de erime noktası değişimi en önemli kriter olarak belirlenmiştir. MULTIMOORA sonuçlarına göre PCM'lere eklenecek en uygun inorganik nanomalzemenin bor nitrür (BN) olduğu görülmüştür.
Numerical Analysis of Bio-Hybrid Crashworthiness Design and Investigation of Energy Absorption Performances Under Oblique Impact
Authors: ERDOĞUŞ Hakan Burçin
Published: December 2023

Designs inspired by nature are used in several areas as automotive, aerospace and defence industry. In studies on the axial crushing analysis of thin-walled structures such as crashworthiness, a critical role of developments of design aspects have been achieved by the bioinspired perspective. The energy absorption performance of the crashworthiness which shapes the basis of the crushing analysis is the main aspects of the numerical and experimental solution methods. In order to verification of finite element model, the energy absorption characteristic specifications were performed the square tube under axial loads. Using the proposed of lotus-inspired design performances of axial load condition, the newly design was prepared square tube included lotus bifurcation as called "bio-hybrid". To compare the axial and oblique loads performances of the L (lotus) and BH (bio-hybrid) structures, force-deformation curves was evaluated with characteristic properties as EA, CFE, SEA, MCF and PCF. The numerical analysis showed that the square outer frame included lotus bifurcation of crashworthiness is less suitable than natural circular lotus configuration under oblique loads. However, the lotus-inspired configuration is advantageous under axial loads
Endüstriyel Hangar Tipi Çelik Yapıda Farklı Makas ve Çapraz Türlerinin Yapısal Sistem Üzerindeki Etkilerinin İncelenmesi
Authors: DİKİCİAŞIK Yağmur , SEN İbrahim Tarık , ÇARBAŞ Serdar
Published: December 2023

Teknoloji geliştikçe ve dünya koşulları değiştikçe, yapısal alandaki ihtiyaçlar ve çözümler bilim alanındaki güncel yöntemlere göre değişmekte ve gelişmektedir. Alternatif yapı metotlarına kıyasla, çelik yapı sistemleri daha dayanıklıdır ve çeşitli geometrideki yapı ihtiyaçlarına güvenli çözümler sunabilmektedir. Bu çalışmada, endüstriyel hangar tipi çelik yapının, örgü düzeni ve stabilite durumları değiştirilerek yapısal analizler gerçekleştirilmiş ve elde edilen sonuçlar karşılaştırmalı olarak değerlendirilmiştir. Sabit bir lokasyon üzerinde aynı boyutlara sahip toplam 24 farklı endüstriyel hangar tipi çelik yapının, farklı 3 makas ve 6 çapraz sistemi için sabit ve hareketli yükler altında yapısal analizleri gerçekleştirilmiş, elde edilen sınır değerler uygulama şartnamelerine göre incelenmiştir. TS EN 1991-1-4 ve TS EN 1991-1-3 standartları, Türkiye Bina Deprem Yönetmeliği (TBDY) ve Çelik Yapıların Tasarım, Hesap ve Yapımına Dair Esaslar (ÇYTHYDE) yönetmeliği dikkate alınmıştır. Yapılara, sismik yükler zaman-tanım alanında mod birleştirme yöntemi kapsamında etkitilmiş ve 1992 yılında meydana gelen 6,8 Ms büyüklüğündeki Erzincan depreminden elde edilen sismik ivme kayıtları kullanılarak dinamik analizler yapılmıştır. Çelik elemanların tasarımında ÇYTHYDE'deki Yük ve Dayanım Katsayıları ile Tasarım (YDKT) hesap yöntemi kullanılmıştır. Yapılarda sadece kapasite tasarımı sınırlandırılarak her tip yapı elemanından en az birinin minimum %80 kapasitede çalışması sağlanıp diğer yapısal tepkiler elde edilmiştir. Yapısal analizlerden elde edilen taban kesme kuvveti, yapı ağırlığı, kolon üst nokta ötelenmesi, tepe noktası ötelenmesi ve maksimum deplasman sonuçları yapısal analiz programına göre karşılaştırmalı olarak değerlendirilmiştir. Sonuç olarak, dışmerkez çaprazlı yapıların yapısal ağırlık açısından, merkezi çaprazlı yapıların ise öteleme açısından daha avantajlı yapısal tepkiler verdiği gözlemlenmiştir.
Estimasi Nilai Manfaat Ekonomi Pengelolaan Minyak Jelantah Rumah Tangga di Kampung Kebon Kopi, Desa Cibanteng, Kabupaten Bogor
Authors: Faimi Sulistiowati Nur , Tampubolon Bahroin Idris
Published: December 2023

Waste Cooking Oil (WCO) refers to the residual oil or by-products resulting from food frying. Typically, Indonesians dispose of WCO into the environment. However, if appropriately managed, WCO can serve as a secondary raw material for non-food products, offering economic benefits. Kebon Kopi Village in Bogor Regency has initiated WCO collection programs. This study aims to estimate WCO generation in Kebon Kopi Village households and evaluate the economic benefits of WCO management. Quantitative descriptive methods, employing the SNI-19-3964-1994 approach, income analysis, and benefits transfer, were utilized. Findings revealed that, on average, households in Kebon Kopi Village produce 9,42 liters of WCO annually. The collective WCO generation by all households in the village amounts to an estimated 3.118,44 liters per year. The economic benefits derived from WCO management for households equate to IDR 2.024.853 per household per year. Overall, the direct economic benefits of used cooking oil management in Kebon Kopi Village appear modest due to the relatively small amount of WCO produced by each household.
Kepuasan dan Loyalitas Konsumen Restoran Bakso Bakwan Malang
Authors: Dwi Hersanty Noer Amelia , Farmayanti Narni , Dewi Triana Gita
Published: December 2023

Bakso is the popular food in Indonesia and has many kinds of variation. One of them is Bakso Bakwan Malang Cak Su Kumis which has been established for decades by maintaining its unique taste. This study aims to identify the characteristics, analyze the level of satisfaction and the consumer loyalty. In this study, there were 100 respondents included. The methods used in this study are descriptive analysis, Customer Satisfaction Index (CSI), Importance Performance Analysis (IPA) and brand loyalty pyramid analysis. The results of the CSI analysis showed that the value of customer satisfaction has a score of 79,99 which states that consumers are satisfied. Besides that, analysis of the level of consumer loyalty shows that even though consumers are satisfied with the restaurant performance, consumers are not loyal yet. Hence, the performance improvement can be conducted by improving attributes with low performance such as sale promotion, serving time, name board, price and food hygiene.
Perbandingan Analisis Finansial Sistem Kandang Closed House Semi Otomatis dan Otomatis di Peternakan Ayam Dekem Tengah Sawah
Authors: Fikrianti Yasinta , Priyanto Bambang , Nur Aini Fitria
Published: December 2023

The cage system is one of the supporting factors in broiler chicken farming. In general, closed house cages are the type of cages that are often used by breeders for maintenance because they are considered more efficient for production. Livestock technology in Indonesia continues to develop along with the times. In addition, financial calculations are needed in a business to find out the profit of the business being run. Ayam Dekem Tengah Sawah Farm is a company in the field of raising broiler chickens which was founded in 2016 with a population of 29,000 chickens. The company has 2 (two) closed house cages with different systems, namely semi-automatic and automatic. Using the two cage systems, the owner of the cage does not clearly know the financial benefits that have been implemented. The research was conducted at Ayam Dekem Tengah Sawah Farm, Sumberagung Village, Peterongan District, Jombang Regency. This study aims to determine the differences in closed house cage systems (semi-automatic and automatic) owned by Ayam Dekem Tengah Sawah Farm through financial analysis. The method used is descriptive quantitative. The study was conducted for one period of rearing broiler chickens without special treatment for livestock. The results of this study indicate that the financial analysis of the results of raising broiler chickens using an automatic closed house cage system is superior to the results of raising broiler chickens using a semi-automatic closed house cage system.
Problem-Based Learning Assisted by Mobile Pocket Book in Mechanical Wave to Enhances Students' Concepts Mastery and Creativity
Authors: Melanie Tasya Septiana , 'Ardhuha Jannatin , Taufik Muhammad , Harjono Ahmad
Published: December 2023

The research aims to determine the influence of the model problem-based learning assisted by a mobile pocket book mechanical wave to increasse students' concepts mastery and creativity. The type of research is quasi-experimental and uses a nonequivalent control group design with pre-test and post-test. Population at this study included all students of class XI IPA at SMAN 4 Mataram Academic Year 2022/2023. Samples were taken using purposive sampling technique, so that XI IPA 1 is obtained as an experimental class as many 32 people and XI IPA 2 as control class as many 31 people. Results the final test of concepts mastery obtained an average score of 78.70 in the experimental class and control class 68.81. Meanwhile, the results of the final creativity test obtained an average value of 80.79 for the experimental class and 76.02 for the control class. The hypothesis was analyzed using Manova with the help of IBM SPSS 21. Based on the results of the analysis it can be concluded that there is the influence of the problem-based learning model assisted by the mobile pocket book mechanical wave to increasse students' concepts mastery and creativity.
Development of Problem-Based Learning LKPD Based Local Potential of Baros Mangroves in Biology Subjects Environmental Pollution Material
Authors: Novitha  , Suhartini
Published: December 2023

This research aims to Producing learning media the PBL modeled LKPD based on the local potential of Mangrove Baros on environmental pollution material is suitable, practical and effective in enhancing the problem-solving abilities and environmental care attitudes of students in class X at SMAN 1 Kretek, Bantul, Yogyakarta. This research follows a research and development approach using the Four-D (4D) model, which consists of four stages: Define, Design, Develop, and Disseminate. Field trials of the LKPD PBL based on the local mangrove potential in Baros for environmental pollution materials were conducted through quasi-experimental research with a pretest-posttest control group design. The subjects of the field trial were 60 students from two classes. Data collection involved problem-solving ability test questions and questionnaires on environmental care attitudes. Data analysis was performed using the MANOVA test to analyze differences in students' problem-solving abilities and environmental care attitudes. The results of the MANOVA test indicated differences in the use of PBL modeled LKPD based on the local mangrove potential in Baros for environmental pollution materials concerning problem-solving abilities and environmental care attitudes.
Formulation and Characterization of Amomum Compactum Sol. Ex Maton Nano Emulsion and Its Antibacterial and Wound Healing Activity
Authors: Nasution Ali Napiah , Fitrisia Rina , Tio Susanthy , Girsang Ermi , Mutia Maya Sari
Published: December 2023

Natural treatment is plant extract nanoemulsion. Forming nanoemulsions with a specific method may help skin wound healing. Fruit cardamom (Amomum compactum Sol. Ex Maton) was used as an antimicrobial, but its wound-healing activity was unstudied. This study compares nanoemulsion from cardamom seed ethanol extract to cardamom extract in suppressing bacterial growth, wound healing, and determining component makeup. Research methods with Lab experiments involve sampling, processing, extracting, and UV-VIS spectrophotometer testing secondary metabolite chemicals, creating nanoemulsions, and characterizing them with HPLC, FTIR, UV-VIS, and PSA. TPC and disc diffusion for antibacterial and wound healing characterization and SPSS analysis. The research results found high quantities of gallic acid, catechin, and epigallocatechin were found in 20% (v/v) cardamom extract nanoemulsion, with HPLC analysis showing levels of 4590.10 µg/mL, 2128.95µg/mL, and 755.42µg/mL, respectively. FTIR and UV-Vis tests indicate a single peak around the phenol compound's absorption area and describe its group by absorbing functional groups in the IR spectrum. Nanoemulsion suppressed E. coli and S. aureus better than cardamom extract. At 1% (v/v), nanoemulsion heals wounds faster than cardamom extract and gentamicin sulfate. The particle size of 53.13 ± 1.25 nm and particle size distribution of 0.56 ± 0.02 nm contribute to the stability and high activity of the nanoemulsion.
Development of Physics E-Module Integrated with PBL Model and Ethnoscience to Improve Students’ 21st Century Skills
Authors: Fitri Anisa Dwita , Asrizal
Published: December 2023

The 21’st century learning should be able to build students’ abilities comprehensively. Students are expected to have 21’st century learning skills known as 4C skills, namely critical thingking, creative thingking, collaboration and communication. Meaningful learning is needed to improve students’ 21st century skills, such as integrated physics learning with ethnoscience. Ethnoscience related to local cultural concepts integrated into e-module can be used as a learning resource. The purpose of this study is to describe the results of the preliminary research and development stages of the physic e-module integrated with PBL model and ethnoscience to improve students’ 21 Century skills. This study is a research and development (R&D) type and the Plomp model. The instruments used were teacher and student interview sheets, self-evaluation sheets, validity and practicality questionnaires. Based on data analysis, the results of validity testing in the valid category with an average value 0.94. Then, the results of practicality testing in the very practical category with an average value 90.09. It can be concluded, the physics e-module integrated with PBL model and ethnoscience to improve students' 21st century skills is valid and practical for use in the learning process.
Dermapen Treatments for Healing Pockmarked Skin in Male Wistar Rats (Rattus norvegicus): A Study Comparing Platelet-Rich Plasma with Salmon DNA Serum
Authors: Chiuman Linda , Hestina  , Ongko Nicolas Xavier , Tarigan Setia Budi
Published: December 2023

Skin issues like deep acne scars (pockmarks) are routinely addressed. Dermaroller and Dermapen face skin care help cure this issue. Researchers believe plasma from platelets (PRP) and salmon DNA serum dermapens work similarly on pockmarked skin. White Wistar mice were tested to confirm this suspicion. This is a lab study or an experiment. The study employed a post-test only with a control group design on 16 white Wistar rats (Rattus norvegicus) divided into two groups of eight rats each: Group I received platelet plasma dermapen (PRP) and Group II received salmon DNA serum dermapen. The collected data was tested for normalcy using SPSS. The data normality test showed a significance value of 0.20 > 0.05, indicating normal distribution. The homogeneity test is 0.224. The significant probability value is greater than 0.05, indicating that the PRP dermapen group and the salmon serum DNA dermapen group have similar variances. The t-test rejects H0 or shows a significant difference in wound healing between groups if the significance value is 0.00 or less than 0.05. The study found that PRP and salmon DNA serum promote wound healing. Healing was faster in the PRP than in the salmon DNA serum group. This is possible because PRP includes bioactive molecules that act as tissue growth factors to enhance proliferation. PRP contains various growth factors that aid wound healing.
Concepts of “Trauma” and “Memory” in W. G. Sebald’s Book Luftkrieg und Literatur (On the Natural History of Destruction)
Authors: Denysenko Anatoliy
Published: December 2023

This year, the second year of the Russian-Ukrainian war, a book by the German author W. G. Sebald (1944-2001), On the Natural History of Destruction, was published in Ukrainian translation by IST Publishing. I must say that reading Sebald's works translated by Roman Osadchuk is a distinct pleasure. This is the third book by Sebald translated into Ukrainian by R. Osadchuk. Before this one, Austerlitz and The Rings of Saturn were published by Komubook. Sebald is one of the few authors I discovered for myself during the war. His Austerlitz was a breath of fresh air at a time when I couldn't bring myself to read or write.
Trauma and the Growth of Love in Children
Authors: White Keith J.
Published: December 2023

This paper aims at all those seeking to understand, respond to, and help children suffering trauma because of the full-scale War of Russia against Ukraine that began in 2022. It draws from three main sources: personal experience of living alongside children and young people who have suffered the trauma of separation and loss; studies, reflections, and practice of those have sought to understand children in a holistic way: biological; emotional/psychological; social and spiritual; Christian faith and tradition, including the Bible, human resources and activity, and theology. The paper is based on the conviction that “it takes a village to raise a child,” not least in a time of war, and that all villagers who have the well-being of that child at heart have a potential role to play in the process. The author points that “parenting” in its widest sense is not restricted to biological relatives or designated carers. The paper seeks to imagine the context from outside the war zone, acknowledging the complicated, secretive, messy, and unpredictable nature of conflict. In its conclusion it brings a message of hope, based not on wishful thinking or utopian dreams, but on experience and evidence collected from around the world, and close to hand, that demonstrates how the trauma of children can and has been overcome.
Extended range of motion does not induce greater muscle damage than conventional range of motion in the bench press exercise
Authors: Matykiewicz Patryk , Krzysztofik Michal , Zajac Adam
Published: December 2023

Introduction: Range of motion (ROM) of resistance exercise affects the muscle damage magnitude and the recovery-time course. Thus, the main aim of this study was to compare conventional and extended ROM in the bench press exercise on neuromuscular fatigue assessed by velocity changes during bench press throw, as well on the exercise-induced muscle damage evaluated by creatine kinase (CK) activity in the blood. Material and Methods: A total of fourteen healthy, well-trained males performed 5 sets of the bench press exercise at 70% of one repetition maximum with either standard (STD) and cambered (CMB) barbell until reaching volitional failure. CK and barbell velocity changes were assessed at the baseline and 1h, 24h, 48h post exercise protocol. Results: The results showed that higher peak barbell velocity was reached during the bench press throw after the CMB when compared to the STD condition. Moreover, CK activity showed an overall significant growing trend from baseline to time points following exercise during the STD, whereas the CMB post-48h CK was higher in comparison to pre and post, but not than post-24h. Conclusion: the bench press exercise performed with the use of CMB barbell might not require a specific training approach, and even higher training frequency might be applied.