bluuebunny/crossref_metadata_2025 huggingface dataset:
Desain dan Implementasi Antena Susunan Mikrostrip Patch Persegi Panjang Empat Elemen pada 2,3 GHz Menggunakan Teknik Pencatuan dengan Distribusi Dolph -Tchebyschef
Authors: Angela Dina , Wahyu Yuyu , Porayauw Tony
Published: June 2024

Penelitian ini melakukan perancangan dan realisasi sebuah antena, yang terdiri atas susunan empat mikrostrip patch persegi panjang yang dicatu secara seri menggunakan distribusi Dolph-Tchebyscheff. Antena ini dirancang untuk dapat bekerja pada frekuensi 2,3 GHz karena frekuensi tersebut digunakan untuk Worldwide Interoperability for Microwave Access (WiMAX) sehingga antena ini dapat digunakan untuk aplikasi WiMAX. Makalah ini menjelaskan proses desain, realisasi, hingga pengukuran. Desain dimulai dengan perhitungan secara teoritis berdasarkan teori desain antena mikrostrip dan teori distribusi Dolph-Tchebyscheff. Kemudian, hasil perhitungan tersebut dioptimalisasi dengan bantuan suatu perangkat lunak desain antena hingga memperoleh karakteristik antena sesuai dengan spesifikasi yang diinginkan. Keluaran akhir dari penelitian ini adalah sebuah prototipe antena susunan mikrostrip patch persegi panjang empat elemen yang bekerja pada frekuensi 2,3 GHz. Parameter antena, seperti VSWR, polarisasi, pola radiasi, bandwidth, dan gain, juga diukur. Pada akhir proses penelitian ini, hasil pengukuran dibandingkan dengan hasil perhitungan teoritis dan simulasi. Antenna array consist of four rectangular microstrip patch antennas with serial feeding using Dolph-Tchebyscheff distribution will be design in this research. This antenna works at 2.3 GHz because the frequency is used for Worldwide Interoperability for Microwave Access (WIMAX) so that the antenna can be applied for WIMAX applications. This paper decribes the process design, realization, and measurement. The design is started with theoritical calculations based on the theory of micristrip antenna design and theory of Dolph-Tchebyscheff distribution. Then, the result of the calculations are optimized using antenna design software to obtain the antenna characteristics according to the desired specifications. The output of this research is a prototype of rectangular microstrip patch antenna array which can work at 2.3 GHz. The antenna parameters, such as VSWR, polarization, radiation pattern, bandwidth, and gain, are measured. At the end of the process, the measurement results are compared with the theoritical calculation and simulation results.
Penerapan Metode Reliability Centered Maintenance (RCM) untuk Menentukan Strategi Perawatan Fasilitas Produksi Kain
Authors: Setiawan Ari , Aritonang Yoon Mac Kinley
Published: June 2024

PT. IS sebagai perusahaan yang bergerak dalam bidang produksi tekstil dihadapkan pada permasalahan downtime yang berasal oleh kerusakan mesin. Salah satu upaya yang dapat dilakukan untuk meminimasi downtime adalah dengan menyusun strategi perawatan. Reliability Centered Maintenance merupakan metode untuk memilih, mengembangkan, dan membuat alternatif strategi perawatan berdasarkan kriteria operasional, ekonomi dan keamanan. Berdasarkan metode RCM, ditentukan mesin stenter finish pada bagian Dyeing dan Finishing sebagai sistem kritis yang akan dianalisis. Selanjutnya dengan menggunakan metode RCM didapatkan komponen-komponen kritis dari mesin yang seringkali menyebabkan kerusakan downtime machine. Untuk setiap komponen tersebut akan ditentukan jadwal perawatan yang sesuai. Jadwal perawatan untuk masing-masing mode kegagalan dibuat berdasarkan tingkat kekritisan mesin dari nilai severity, occurrence, dan detection setiap mode kegagalan. Jadwal perawatan yang dibuat mencakup jadwal pembersihan komponen, pelumasan, serta pengecekan masing-masing komponen mesin. PT. IS is a textile company faces machine downtime problems. One of the efforts to reduce machine downtime is to develop maintanance strategies. RCM is a method used to choose, develop, and make alternative maintanance strategies based on the operational, economic, adn security criteria. Stenter finish machine is rated as a critical system to be analyzed. Furthermore, by using the RCM method the critical components of the equipment which often cause damage to machine downtime can also be defined. Afterwards, an approriate maintanance shcedule to reduce machine downtime will be develop for each of the component above.
Pengembangan Sistem Penilaian Kualitas Pelayanan dengan Metode Importance Performance Analysis (IPA)
Authors: Sipayung Evasaria , Gunawan Arief Samuel
Published: June 2024

Rumah Sakit Advent Bandung (RSAB), yang berlokasi di Jl. Cihampelas No. 161, merupakan salah satu rumah sakit swasta yang ada di Jawa Barat. RSAB ingin terus meningkatkan kepuasan pasien dengan memberikan pelayanan yang berkualitas. Kepuasan pasien sangat erat kaitannya dengan pengelolaan terhadap feedback dari pasien. Saat ini RSAB memiliki kesulitan dalam menilai kualitas pelayanan jasa dan tingkat kepuasan pasien terutama dalam hal mengolah feedback dari pasien. Penelitian ini menggunakan metode Importance Performance Analysis (IPA) yang merupakan salah satu metode untuk mengukur tingkat kepuasan pasien (sudut pandang pasien). Penelitian ini menghasilkan sistem penilaian kualitas pelayanan yang dikembangkan dengan menerapkan metode IPA. Sistem yang dikembangkan memiliki kemampuan dalam mengolah data feedback dari pasien menghasilkan informasi yang berguna untuk mengambil keputusan. Hasil penelitian dari pengujian terhadap sistem yang dikembangkan membantu rumah sakit dalam mengolah data feedback dari pasien menjadi informasi untuk pengambilan keputusan peningkatan kualitas pelayanan. Bandung Adventist Hospital (BAH) in Jl. Cihampelas No. 161 is a private hospital located in West Java. BAH want to improve patient satisfaction by providing quality service. Patient satisfaction is very closely related to the management of patient's feedback. BAH have difficulty in assessing the quality of service and level of patient satisfaction, especially in terms of processing patients' feedback into useful information. This research applied Importance Performance Analysis (IPA) method to measure the level of satisfaction from the patient's point of view. This research also generates service quality assessment system developed by applying IPA. The system has ability to process patient's feedback data to produce useful inforrmation for decision making. The result of research from system testing help to process patient's feedback data into useful information fro decision-making to improve the quality of service.
Kecepatan dan Konsensus dalam Keputusan Stratejik di Lingkungan High Velocity: Sebuah Studi Literatur
Authors: Tarigan Samuel
Published: June 2024

Konsensus dan kecepatan keputusan stratejik adalah dua keluaran proses keputusan yang menjadi konstruk penting dalam proses strategi karena berpengaruh pada kinerja perusahaan (Rajagopalan, Rasheed, dan Datta 1993) terutama di lingkungan high velocity (Eishenhardt, 1989). Studi literatur ini dilakukan dengan cara mengidentifikasi penelitian-penelitian terdahulu menyangkut kedua konstruk tersebut untuk memahami pengaruhnya pada kinerja perusahaan dan anteseden-anteseden dari keduanya. Hasil menunjukkan bahwa 1) baik kecepatan keputusan stratejik maupun konsensus pada umumnya meningkatkan kinerja, dan 2) anteseden keduanya dapat berada pada tingkat individu, tim manajemen puncak, proses, organisasi, dan industri. Penelitian selanjutnya dapat dilakukan secara empirik untuk memahami apakah keduanya dapat dicapai secara bersamaan oleh manajemen puncak sehingga meningkatkan keberhasilan eskekusi strategi (Dooley, Fryxell, dan Judge, 2000), dan kinerja perusahaan secara keseluruhan, terutama di lingkungan high velocity. Consensus and strategic decision making speed are two decision process outcomes that are important in the field of strategy process because their influence on a firm’s performance (Rajagopalan, Rasheed, and Datta 1993), especially in high velocity environment (Eisenhardt, 1989). This literature review was conducted by identifying previous studies on both constructs in order to gain insights on their consequences on firm performance as well as their antecedents. Results show that 1) both strategic decision speed and consensus generally improve firm performance, and 2) their antecedents can be related to individual, top management team, process, organization, or industry factors. Further research can be done empirically in order to build understanding on whether both constructs can be achieved simultaneously by top management team such that the success of strategy execution (Dooley, Fryxell, and Judge, 2000) and the firm’s overall performance can be improved especially in high velocity environment
Pencarian Citra Digital Berbasiskan Konten dengan Ekstraksi Fitur HSV, ACD, dan GLCM
Authors: Agaputra Muhammad Dendy , Wardani Ken Ratri Retno , Siswanto Elisafina
Published: June 2024

Pencarian citra berbasiskan konten adalah teknik untuk mencari citra yang piksel-pikselnya memiliki karakteristik sama atau mendekati dengan sebuah sekumpulan citra. Penelitian ini menggunakan warna dan tekstur sebagai ekstraksi fitur dari sebuah citra. Untuk warna digunakan dua bentuk pendekatan, yaitu HSV (Hue, Saturation, Value) dan ACD (Average Color Dominance). Sedangkan tekstur menggunakan metode Gray Level Co-occurrence Matrices. Kemudian untuk proses pencocokan antara citra query dengan citra target yang ada pada sekumpulan citra dilakukan perhitungan jarak (Euclidean Distance) dari citra query dengan citra target pada basis data citra. Dari hasil pengujian didapatkan bahwa pencarian citra melalui ekstraksi warna (HSV, ACD) dan tekstur (GLCM) menghasilkan hasil pencarian yang lebih akurat dibanding dengan hanya ekstraksi warna saja atau ekstraksi tekstur saja. Selain itu, citra yang mengandung Point of Interest (POI) tunggal jelas lebih baik dalam pencarian dibandingkan dengan citra yang memiliki banyak POI. Content-based image retrieval is a technique to search for a set of images based on its pixels that have the same characteristics with query image. This research used color and texture as feature extraction of an image. For color, we use two approaches, namely the HSV (Hue, Saturatuin, Value) and ACD (Average Color Dominance), while for the texture, we use the Gray Level Coocurenes Matrices method. The matching process between the query image with the target image is done by calculating the distance by using Euclidean Distance. The experimental results showed that the extraction of image retrieval through color (HSV, ACD) and texture (GLCM) produces more accurate results compared with extraction using color or texture only. In addition, images that have a single and clear Point of Interest (POI) have better result than the image that has a lot of POI.
A vallási identitás vizsgálata az egyháztól eltávolodó fiatal felnőtteknél
Authors: Fabiny Márton
Published: June 2024

A tanulmány az egyháztól eltávolodó fiatal felnőttek vallási és személyes identitásának összefüggéseit vizsgálja a narratív életútinterjú és a hermeneutikai esetrekonstrukció módszertanának segítségével. Ezek megértéséhez részletesen bemutatja a narratív identitás fogalmát, valamint megvilágítja a módszertani és lelkigondozói szempontok párhuzamát. A kérdésfelvetést egy illusztratív eseten vizsgálva a feltáró jellegű esettanulmány módszertani kísérletként értelmezhető.
Failure of Polio Eradication in Pakistan.
Authors: ASIF SHAH
Published: June 2024

Pakistan is one of the three countries where poliomyelitis is still considered as an endemic viral infection', Inevery round of National Immunization day (NIDs) over30 million children are immunized for polio by ExpandedProgram on Immunization with the support of multiplemultinational donors and private sector. ii In every campaign over 6000 permanent centers and more than onemillion outreach and mobile vaccination sessions provides immunization services with the support of morethan 10,000 vaccinators and approximately 6000 ladyhealth visitors (LHVs)iii. Despite the utilization of hugeamount of resources Pakistan fail to eradicate the polioresulted international communities imposed a travel banon Pakistan in 2013.iv Literature review suggested multiple reason for failure in eradication of polio, some arediscussed below.
Broken Hill Proprietary Billiton report: Analysis Available Strategy to Hedging Risks by Using Futures Contracts, Foreign Exchange Futures
Authors: Xiong Mengdi
Published: June 2024

With the development of multinational companies, plenty of companies confront enough problems in financial management. This paper using real figure analysis method to conclude companies financial problems. After data analysis, we found Broken Hill Proprietary Billiton as one of the multinational company, it faced enough problems as commodity price risk, currency exchange rate risk and interest rate risk. In this case, hedging strategies with derivatives are used to minimize the risks of financial loss. Futures contract can be used to deal with commodity price risk and risks of currency exchange risk by locking in price and reduce uncertainty of market movements. Finally, contrast advantages and disadvantages for each strategy. After analysis of Broken Hill Proprietary Billiton, it could provide enough strategies to alleviate financial risks for multinational companies.
Constructing and Implementing a Psychological Health Education System for College Students under the Concept of "Holistic Education"
Authors: Rong Yi
Published: June 2024

Constructing and implementing a psychological health education system for college students based on the concept of “holistic education” is of great significance for fulfilling the fundamental requirements of moral education and implementing comprehensive quality education, as well as enhancing students’ harmonious and comprehensive development. In this study, literature analysis and questionnaire surveys were conducted to explore the connotation and implications of psychological health education for college students in the context of “holistic education”. The study also identified the existing issues in psychological health education in current colleges and proposed approaches to constructing a psychological health education system for college students under the concept of “holistic education”. Only through the collective efforts of all members can a strong educational force be formed. This will contribute to improving the quality and effectiveness of psychological health education for college students.
A Blended Teaching Mode in College English Writing Based on Intercultural Competence Cultivation
Authors: Xu Shanshan
Published: June 2024

From traditional approach to process approach prevailing in the recent years, it indicts that the foreign language teachers improve the students’ writing abilities by attempts and exploration. However, in practice, these approaches are of disadvantages. This paper focuses on the analysis of current approaches in EFL writing instruction. It is based on the basis of cultivating intercultural competence, with intention to suggest a blended online and offline teaching approach. It creates a real situation to stimulate the interest before writing, encourage students to make full use of online resources and cultivate the students' intercultural competence while writing, and establish multiple interactive evaluation method after writing so as to open a new way of thinking for college English writing teaching.
Application of Corpus Analysis Software and Error Analysis Theory on Non-English Majors’ Chinese-English Translation Features
Authors: Shu Can
Published: June 2024

This research focuses on non-English major students’ Chinese-English (C-E) translation features. It aims at annotating and summarizing the features and error types in students’ C-E translation by applying to corpus analysis software Readability Analyzer. This study first collects students’ C-E translation texts from a computer-based exam, then forms a self-constructed corpus and a reference corpus. The translation materials in the target corpus and the reference corpus are first analyzed and compared by Readability Analyzer to figure out the features of students C-E translation texts from the perspectives of sentence length, word length, percentage of difficult words, Flesch Reading Ease, Dale-Chall Score, Fry Readability Grade Level. After that, different types of errors in students C-E translation are labeled and analyzed based on statistical analysis and Error Analysis (EA) theory. According to Readability Analyzer, students C-E translation texts have the following features. From passage statistics, it shows that translation texts that get lower scores tend to use shorter sentences and easier words. In addition, from readability scores, Flesch scores, Dale-Chall Scores shows and Fry Readability Grade Level are taken into consideration. Flesch scores shows that compared with the reference corpus, students’ translation which get lower scores are harder to understand since there are more language errors than higher-score translation. Dale-Chall Scores indicate that translation materials which score 8-9 are very close in the difficulty of word-using with the reference corpus. Fry Readability Grade Level shows that texts of lower scores are simpler and more accurate than texts of higher scores. According to Error Analysis (EA) Theory, students’ errors are further classified and discussed on lexical level, sentence level and textual level. The conclusions of this research are expected to make contributions to the improvement of C-E translation teaching and help college students, especially non-English majors, to enhance their C-E translation competence.
Angels Wear White: The Expression of Social Symptoms in Feminist Perspective
Authors: Yang Cancan
Published: June 2024

Angels Wear White starts with a child sexual abuse case, presenting the real social situations of females with different identities as the plot unfolds. Female characters in the film, the heroine, Mia, Wen, and Lily, Wen’s mother, Xin, and the allegorical figure of Monroe with rich connotations shed light on women’s lowliness and helplessness in patriarchy. This article will analyze this movie from critical feminist theory, revealing the tough situation that women face under discipline, oppression, and the rise of rebel consciousness after being hurt.
Tasks of the State Certifi cation as a System of Requirements for Educational Achievements of Students
Authors:   Federal Institute of Pedagogical Measurement, Moscow, Dobrotin D. Yu. ,   D.I. Mendeleev Russian University of Chemical Technology, Moscow
Published: June 2024

The article examines the regulatory framework governing the content of control measuring materials in chemistry, analyzes changes in the list of controlled content elements and their formulations, describes changes in the codifiers and specifications of the OGE and USE, provides examples confirming the complex and systematic nature of checking the achievement of meta-subject and subject planned results by tasks of examination variants of the educational achievements.
Lesson on the Topic “Metals of the IIA Group”
Authors:   Lyceum - Boarding School no, 64, Saratov, Romanova V. O.
Published: June 2024

The scenario of the lesson for the acquisition of new knowledge with primary consolidation in accordance with the requirements of the Federal State Educational Standard is presented. The main pedagogical idea of the lesson is to create conditions for the study of physical, chemical properties, methods of obtaining metals of the IIA group, as well as their fields of application; creating conditions for cognitive activity of students and increasing subject motivation.
Using Checklists in Studying Chemistry in Grade 8
Authors:   Herzen Russian State Pedagogical University, Saint Petersburg, Seliverstova I. V.
Published: June 2024

The article presents the experience of developing and applying checklists in chemistry lessons in Grade 8.
Regional Component of the Educational Content: Petrochemical Production
Authors:   School no. 117, Volgograd, Ignat’eva S. Yu.
Published: June 2024

Studying the scientific foundations of modern production, including petrochemical production, in secondary school is one of the most important means to solve the problem of polytechnic training of students. The research lesson and its content are aimed at studying the production of gasoline, predicting the chemical processes of increasing the octane number of gasoline.
School STEAM Center: Development of Natural Science Literacy
Authors:   Gymnasium of the village of Leningradskaya, Krasnodar Territory, Nikeshina A. A. , Kostenko E. S. ,   Kuban State University of Technology, Krasnodar
Published: June 2024

This research aims to investigate the role of STEAM education methodology in the study of chemistry at school. This study advances our understanding of interdisciplinary connections. The author introduces the technological map of the STEAM-lesson “Chemistry and Geology. The treasures of the planet”.
Chemical Quiz for Grades 8-9
Authors:   School no, 2033, Moscow, Kortunov G. M. , Borunova E. B. ,   Moscow State Pedagogical University
Published: June 2024

The main goal of the quiz is to increase motivation for the study of chemistry, to develop students’ knowledge, their logical thinking and communication skills. It is recommended to include similar games in the program of the school Science Week.
Comparative Legal Analysis of The Death Penalty Provisions In Indonesia: The State Of Pancasila Law's Perspective (Case Study of Law Numbers 1 Of 1946 And Law Number 1 of 2023 Concerning The Criminal Code)
Authors: Kurniawan Kurniawan , Kantikha I Made , Markoni Markoni , Nardiman Nardiman
Published: June 2024

The death penalty is one tool used by law enforcement to deal with significant crimes. Its purpose is to deter criminals from committing similar crimes in the future and to make those who have not engaged them feel fearful of doing so. Following the reforms, the Republic of Indonesia's legal politics evolved into one that supports democracy. The surface issues concern how the death sentence laws are seen from the standpoint of the Pancasila legal state. This study aims to compare regulatory policies regarding the death penalty from the perspective of Pancasila's legal system. Normative juridical research is the analytical tool employed to explore this issue. The findings of this study, specifically the death penalty clauses included in Law Number 1 of 1946 and Law Number 1 of 2023 governing the Criminal Code, contain many different things that were initially the basic criminal death penalty, which were changed to special criminal penalties. There are also several relationships and comparisons between certain crimes because the principle of legality is still in effect. In the Indonesian context, the view of life is Pancasila, a joint agreement or consensus between the majority of the Indonesian nation.
Criminological Aspects of Children as Perpetrators in the Crime of Trafficking in Persons (TPPO)
Authors: Al Farizi Fathan , Sairi Sairi , Fatikhaturrizqiyyah Tika , Waluyadi Waluyadi , Hendra Raden
Published: June 2024

The goal of this study is to inform the public about the findings to support the adoption of laws that penalize those who engage in human trafficking. The study's focus is on legal criminology, namely how to apply punishments against those who commit crimes related to human trafficking and countermeasures against juvenile offenders. This study is about legal normative research. The data gathering technique was done through literature studies and interviews for primary data, document studies for secondary data, and interviews for secondary data. The primary data was used as supporting data. A qualitative analysis and descriptive presentation of the data are made. According to the study, there are several reasons why kids commit crimes related to human trafficking.
Perspective of Islamic Law and Ulama Polemics about Women Judges (Gender Analysis and Moderation of Fiqh)
Authors: Kholiq Achmad , Zein Achyar , Haerany Anne
Published: June 2024

This study aims to investigate and debate the validity of women's opinions founded on the normative Islamic viewpoint known as fiqh. This research endeavor endeavors to scrutinize the arguments of various ulama, or Muslim scholars, concerning female judges while maintaining a foundation in fiqh, the body of Islamic law. This study's technique combines focus group discussions (FGD) and content analysis with qualitative approaches. FGD is held with numerous lecturers and specialists in Islamic law at the Faculty of Sharia and Law at Institut Agama Islam Negeri Syekh Nurjati Cirebon. The study's conclusions, which come from at least three well-known ulama or Muslim scholars, indicate that the debate among fiqh experts on the standing of women judges was affected by several factors.
ANÁLISIS DE TRES DE LAS MODIFICACIONES A LA LEY DE ENJUICIAMIENTO CRIMINAL INTRODUCIDAS POR LA LEY ORGÁNICA DE GARANTÍA INTEGRAL DE LA LIBERTAD SEXUAL (LO 10/2022, 6 de septiembre)
Authors: Torres Rosell Nuria
Published: June 2024

La aprobación de la Ley Orgánica 10/2022, de 6 de septiembre, de Garantía Integral de la Libertad Sexual, conocida coloquialmente como la Ley del «solo sí es sí», responde, tal y como en su preámbulo se indica, a una serie de movilizaciones y acciones públicas promovidas por el movimiento feminista que, en consideración del legislador penal español, han dado mayor visibilidad a las violencias sexuales contra las mujeres. Esta ley ha supuesto una reforma en profundidad de los delitos sexuales, en la que resulta especialmente destacable la eliminación de la distinción entre abusos y agresiones sexuales. En esta obra, especialistas en la materia abordan los aspectos más trascendentales de las modificaciones realizadas y el cambio de perspectiva que las mismas representan. Así, entre otras cuestiones, se analiza la nueva configuración del consentimiento, la creación de los tipos cualificados de utilización de psicóticos y narcóticos y por la existencia de una relación de pareja entre los sujetos implicados. También son objeto de estudio las reformas implementadas para mejorar la protección de las víctimas de los delitos sexuales y las implicaciones que todas estas cuestiones tienen en materia procesal. Finalmente, se ofrece una visión general de los puntos clave de la reforma propiciando que el lector esté en condiciones de tener una opinión propia basada en conocimientos académicos debidamente fundamentados.
Maradhat-e élet az élet?
Authors: Kedves Eszter Virág
Published: June 2024

A modern technológiák megjelenésével viselkedésünk és szokásaink egyre nagyobb változáson mennek keresztül. A szakirodalom hazai és nemzetközi szinten is elmélyülten vizsgálja az internet és a digitális világ hatásait a mentális egészségre. Az esszében Ferenc Pápa egyetemünkön tartott beszédére reflektálva vizsgálok meg néhányat ezekből a tanulmányokból. Az esszében a modern technológia hatását a közösségbe tartozás igényére, az információfeldolgozás minőségére, az étkezési szokásainkra, a kommunikációs képességeinkre, illetve a terápiás foglalkozások minőségére fókuszálva vizsgálom.
Egyiptomi vonatkozású leletek Pannoniában
Authors: Koncsos Levente
Published: June 2024

A tanulmány célja, a pannoniai lelőhelyű, Egyiptomhoz kötődő leletanyag bemutatása és értelmezése. A témaválasztást indokolja, hogy ilyen összefoglaló munka az 1960-as évek óta nem született és kifejezetten ezeknek a leleteknek az értelmezésére fókuszáló kutatás nem létezik. A kutatás kiterjedt a jelenleg publikált legtöbb egyiptomi vonatkozású leletre, jelen cikk ezek közül a legérdekesebbekre és legkülönlegesebbekre fókuszál.
Láncékszerek a 10. századi Kárpát-medencében
Authors: Németh Krisztina
Published: June 2024

Jelen tanulmány a honfoglalás kori leletanyagban előkerült láncékszerekkel foglalkozik. Ezen ritka tárgytípusba tartozó ékszerek eddig kizárólag női és gyermeksírokból kerültek elő. Viselésük módjának eddig még nem sikerült pontos képet adniuk, a sírok bolygatottsága és a kevés hiteles feltárás végett. A láncékszerek párhuzamainak vizsgálata közben nem csupán a Kárpát-medence korábbi leleteit, de a Kárpátoktól keletre, Bizáncban, valamint a Közel-Keleten előkerült korábbi vagy korban megegyező leleteket is figyelembe kell venni.
The Monster Within
Authors: Dechert Adél Eszter
Published: June 2024

Several debates emerged from Stanley Kubrick’s 1980 adaptation of Stephen King’s The Shining, mostly because of the notable changes that the director made in the film. This essay aims to explore the possible reasons behind these changes by introducing the main differences, such as the tone, themes, and the endings. The analysis particularly focuses on the main character’s representations, not only because it is the most significant difference, but also because the character of Jack Torrance is the most memorable element of the story, especially in the case of Kubrick’s film. My essay aims to demonstrate that Kubrick’s divergent approach is what led to the story’s new elements, layers and interpretation.
The Taming of the Shrews
Authors: Kiss Fanni
Published: June 2024

The important question of William Shakespeare’s The Taming of the Shrew ‒ or how and with what means one can tame an unbridled, sharp-tongued woman who contradicts every word one utters ‒ has been keeping thousands of men occupied for centuries now. Hence, the main topic of this study will be based on an in-depth comparison of shrew taming in Shakespeare’s famous play The Taming of the Shrew and its adaptation, Gil Junger’s successful film, 10 Things I Hate About You. In this study, I will scrutinize how the early modern and modern man tried to make a woman obey, besides, how advanced feminist thinkers judged these so-called taming methods used by the male protagonists.
Analysis of GAAFET’s transient heat transport process based on phonon hydrodynamic equations
Authors: Liu Zhe , Wei Hao , Cui Hai-Hang , Sun Kai , Sun Bo-Hua ,   School of Building Services Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China,   Institute of Mechanics and Technology, Xi’an University of Architecture and Technology, Xi’an 710055, China,   Institute of Microelectronics of the Chinese Academy of Sciences, Beijing 100029, China,   Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
Published: June 2024

Compared to the classical Fourier’s law, the phonon hydrodynamic model has demonstrated significant advantages in describing ultrafast phonon heat transport at the nanoscale. The gate-all-around field-effect transistor (GAAFET) greatly optimizes its electrical performance through its three-dimensional channel design, but its nanoscale characteristics also lead to challenges such as self-heating and localized overheating. Therefore, it is of great significance to study the internal heat transport mechanism of GAAFET devices to obtain the thermal process and heat distribution characteristics. Based on this, this paper conducts theoretical and numerical simulation analyses on the phonon heat transfer characteristics within nanoscale GAAFET devices. Firstly, based on the phonon Boltzmann equation, the phonon hydrodynamic model and boundary conditions are rigorously derived, establishing a numerical solution method based on finite elements. For the novel GAAFET devices, the effects of factors such as surface roughness, channel length, channel radius, gate dielectric, and interface thermal resistance on their heat transfer characteristics are analyzed. The research results indicate that the larger the surface roughness, the smaller the channel length and the channel radius, the larger the interface thermal resistance leads to the higher hot spot peak temperature. The non-Fourier heat analysis method based on the phonon hydrodynamic model and temperature jump condition within the continuous medium framework constructed in this paper can accurately predict the non-Fourier phonon heat conduction process inside GAAFET and reveal the mechanisms of resistive scattering and phonon/interface scattering. This work provides important theoretical support for further optimizing the thermal reliability design of GAAFET, improving its thermal stability, and operational performance.
Bioinformatic analysis and experimental validation of six cuproptosis-associated genes as a prognostic signature of breast cancer
Authors: Chen Xiang , Sun Hening , Yang Changcheng , Wang Wei , Lyu Wenzhi , Zou Kejian , Zhang Fan , Dai Zhijun , He Xionghui , Dong Huaying
Published: June 2024

Background

Breast carcinoma (BRCA) is a life-threatening malignancy in women and shows a poor prognosis. Cuproptosis is a novel mode of cell death but its relationship with BRCA is unclear. This study attempted to develop a cuproptosis-relevant prognostic gene signature for BRCA.

Methods

Cuproptosis-relevant subtypes of BRCA were obtained by consensus clustering. Differential expression analysis was implemented using the ‘limma’ package. Univariate Cox and multivariate Cox analyses were performed to determine a cuproptosis-relevant prognostic gene signature. The signature was constructed and validated in distinct datasets. Gene set variation analysis (GSVA) and gene set enrichment analysis (GSEA) were also conducted using the prognostic signature to uncover the underlying molecular mechanisms. ESTIMATE and CIBERSORT algorithms were applied to probe the linkage between the gene signature and tumor microenvironment (TME). Immunotherapy responsiveness was assessed using the Tumor Immune Dysfunction and Exclusion (TIDE) web tool. Real-time quantitative PCR (RT-qPCR) was performed to detect the expressions of cuproptosis-relevant prognostic genes in breast cancer cell lines.

Results

Thirty-eight cuproptosis-associated differentially expressed genes (DEGs) in BRCA were mined by consensus clustering and differential expression analysis. Based on univariate Cox and multivariate Cox analyses, six cuproptosis-relevant prognostic genes, namely SAA1, KRT17, VAV3, IGHG1, TFF1, and CLEC3A, were mined to establish a corresponding signature. The signature was validated using external validation sets. GSVA and GSEA showed that multiple cell cycle-linked and immune-related pathways along with biological processes were associated with the signature. The results ESTIMATE and CIBERSORT analyses revealed significantly different TMEs between the two Cusig score subgroups. Finally, RT-qPCR analysis of cell lines further confirmed the expressional trends of SAA1, KRT17, IGHG1, and CLEC3A.

Conclusion

Taken together, we constructed a signature for projecting the overall survival of BRCA patients and our findings authenticated the cuproptosis-relevant prognostic genes, which are expected to provide a basis for developing prognostic molecular biomarkers and an in-depth understanding of the relationship between cuproptosis and BRCA.
Optimal Control of the Modular Multilevel Matrix Converter with Distributed Energy Storage for Grid Supply and Machine Drives
Authors:   , Gajardo Rojas José Ignacio
Published: June 2024

La integración de sistemas de almacenamiento híbridos desempeña un papel fundamental en el aprovechamiento de energías renovables, la electrificación de procesos y el fortalecimiento de la red eléctrica. Los conversores de potencia juegan un papel crucial al posibilitar la integración de nuevas tecnologías. En este contexto, los conversores modulares multinivel en cascada están siendo objeto de estudios recientes debido a sus beneficios en la incorporación de sistemas de almacenamiento a la red. Destaca el conversor modular multinivel matricial (M3C), que esta ganando popularidad gracias a su capacidad para ofrecer las ventajas de un conversor multinivel y la conexión directa entre dos redes de corriente alterna (AC). Además, este conversor facilita la integración de un sistema de almacenamiento distribuido (DES) en sus sub-módulos, simplificando la gestión de las fuentes de energía. A pesar de sus notables beneficios, este tipo de aplicación especıfica del conversor no ha alcanzado una amplia popularidad en el ámbito académico. Esta tesis se enfoca en examinar la integración de un DES mediante un algoritmo de control fundamentado en el desequilibrio de potencia inter-clúster en el M3C. En una primera fase, se lleva a cabo un análisis de las ecuaciones delineadas en investigaciones recientes, seguido de un desarrollo matemático para deducir las ecuaciones de corriente y las expresiones de potencia instantánea. Por último, se formula un método de control optimo basado en cada sistema de ecuaciones propuesto. El sistema de control propuesto se evalúa inicialmente mediante simulaciones y posteriormente se valida en un entorno experimental. Esta validación incluye la inyección de potencia a la red eléctrica y la operación de un motor a velocidad variable, todo ello en conjunto con un desequilibrio de potencia inter-clúster.
Caracterização do perfil de produtores rurais e da produção de pitaya
Authors: Serafim Ulisses , Putti Fernando Ferrari , Natel Andressa Santanna , Góes Bruno César , Barcelos Jéssica Pigatto Queiroz , Pio Leila Aparecida Salles , Silva Adriano Bortolotti da
Published: June 2024

O agronegócio é atualmente um dos principais setores da economia brasileira e sua potencialidade é evidenciada pelo crescimento da participação no PIB e pela disponibilidade de recursos naturais e condições favoráveis  para produção. O Brasil se destaca como terceiro maior produtor de frutas no mundo, mas com um baixo percentual de participação no mercado de exportação. Existe um potencial mercado em ascensão que é a produção e consumo de frutas exóticas como pitaya, mangostão, granadilha dentre outras. Objetivou-se com o presente estudo a caracterização do perfil de produtores de frutos de pitaya presentes no “II Encontro Nacional dos Produtores de Pitaia”. Para tanto, foi realizada uma pesquisa exploratória e a aplicação de um questionário estruturado aos produtores rurais participantes do evento. Os resultados mostraram que, dos produtores entrevistados, aproximadamente a metade possui idade entre 31 a 40 anos e a maioria são proprietários e residem na própria propriedade, possui alto nível de escolaridade, pois 76% são graduados e pós-graduados. A maioria, 80% dos entrevistados, busca na cultura da pitaya uma oportunidade para diversificar a produção e aumentar sua fonte de renda. O canal mais utilizado na busca de soluções e informações para a cultura foi a internet (61%) seguido pela televisão (14%) e a assistência técnica (7%). As principais dificuldades dos produtores estão relacionadas à produção (66%) seguidas pela gestão e comercialização da safra (28%). O canal de comercialização mais utilizado é a venda direta ao consumidor e as redes de supermercados seguidos pela venda ao CEASA e feiras livres.
Bioseparation
Authors: Shaeiwitz Joseph A. , Henry Joseph D. , Ghosh Raja
Published: April 2012

The article contains sections titled:1.Introduction2.Cell Disruption3.Solid–Liquid Separation3.1.Conventional Filtration3.2.Membrane Filtration3.2.1.Promotion of Turbulence3.2.2.Application of Electric Field3.3.Centrifugation3.4.Coagulation and Flocculation4.Product Isolation4.1.Extraction4.2.Adsorption Including Ion Exchange4.2.1.Affinity Adsorption4.2.2.Ion‐Exchange Adsorption4.2.3.Quantitative Analysis4.2.4.Elution4.3.Precipitation4.3.1.Salting Out4.3.2.pH Adjustment4.3.3.Organic Solvents4.3.4.Temperature4.3.5.Polymers and Polyelectrolytes4.3.6.Affinity Precipitation4.4.Solubilization and Refolding4.5.Ultrafiltration5.Purification5.1.Chromatography5.1.1.Gel Filtration Chromatography5.1.2.Affinity Chromatography5.1.3.Reverse Phase and Hydrophobic Interaction Chromatography5.1.4.Quantitative Aspects5.2.Electrical Separations5.2.1.Electrophoresis5.2.2.Isoelectric Focusing and Isotachophoresis5.2.3.Electrodialysis5.2.4.Dielectrophoresis5.3.Magnetic Separations5.4.Membrane Chromatography6.Polishing6.1.Crystallization6.2.Drying and Freeze Drying6.3.Buffer Exchange6.4.Virus and Endotoxin Removal6.5.Removal of Aggregates7.New Bioseparation Strategies
Cast Iron and Cast Steel
Authors: Kucharcik Lothar , Troglio Cesare
Published: April 2012

The article contains sections titled1.Cast Iron2.Cast Steel
Analysis and Optimization of the Silicone Molding Process Based on Numerical Simulations and Experiments
Authors: Matysiak Lukasz , Kornmann Xavier , Saj Piotr , Sekula Robert
Published: April 2012

Injection molding of liquid silicone rubbers (LSR) is widely utilized in the production and insulation of many medium‐ and high‐voltage electrical components. It is dictated mainly by the excellent properties of LSR, ensuring high quality of the final product. However, this also requires a well‐established and controlled manufacturing process. Typically, experimental methods are used to get a detailed knowledge regarding the process and to gain the necessary experience. Unfortunately, such an approach is expensive and time consuming, and minimal marketing time is one of the most important requirements for being competitive. In this connection, an advanced silicone molding simulation tool was successfully developed and validated experimentally. Furthermore, computer simulations were applied to analyze and optimize the process for a selected product, avoiding trial and error methods with the only cost connected to the computational time. An accurate representation of the process required a mathematical approach, among others, consisting of viscosity, pVT, and curing kinetics models that were built up based on rheological, pressure, and calorimetric measurements conducted for a considered silicone material. © 2012 Wiley Periodicals, Inc. Adv Polym Techn 32: E258–E273, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/adv.21272
Assessment of the utilization of different peroxide dispersion media on the controlled degradation of polypropylene
Authors: Muñoz P. A. R. , Bettini S. H. P.
Published: April 2012

A two‐step investigation of polypropylene‐controlled degradation was performed. First the controlled degradation of polypropylene was investigated by assessing the effects of using dicumyl peroxide (DCP) and 2,5‐dimethyl‐2,5‐di(t‐butylperoxy) hexane (DHBP) in different suspensions (neat, calcium carbonate, and organically modified montmorillonite). The second part of this research was performed according to a factorial design at two levels (22 experimental design) with center point, in which peroxide concentration and reaction time were studied. Polypropylene degradation was assessed by melt flow rate (MFR) and parallel plate rheometry. Results showed that DCP presented higher molar efficiency in polypropylene degradation reactions in relation to DHBP; likely due to radical recombination reactions. The results also indicate that clay may catalyze the recombination reactions of polypropylene radicals. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2013
Macroporous dehydroalanine polymer hydrogel with fast temperature response and high repetition durability
Authors: Tezuka Yoshihiko , Tanaka Hitoshi
Published: April 2012

Thermoresponsive hydrogels based on poly(methyl 2‐isobutyramidoacrylate) (PMIBA) were prepared by free‐radical crosslinking polymerization of the corresponding monomer using N,N′‐methylenebisacrylamide as a crosslinker. The PMIBA hydrogels showed a reversible temperature‐induced volume change with a volume phase transition temperature (VPTT) at 19°C, while they contained more than 60 wt % water even in the equilibrium deswollen state. When the external temperature was raised rapidly above the VPTT, the PMIBA gels shrank smoothly with time at a faster rate than conventional poly(N‐isopropylacrylamide) hydrogels of the same size. The fast and smooth deswelling response of the PMIBA gel is ascribed to its sponge‐like structure with 0.1–1 µm pore sizes formed in the deswollen state. The smooth deswelling response due to the macroporous structure resulted in high durability against repeated changes in the external temperature. The PMIBA gel showed little degradation in the swelling ability when subjected to 50 times of thermal cycling across the VPTT. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2013
Adherence to gastroprotection during cyclooxygenase 2 inhibitor treatment and the risk of upper gastrointestinal tract events: A population‐based study
Authors: Valkhoff Vera E. , van Soest Eva M. , Mazzaglia Giampiero , Molokhia Mariam , Schade René , Trifiro Gianluca , Goldstein Jay L. , Hernandez‐Diaz Sonia , Kuipers Ernst J. , Sturkenboom Miriam C. J. M.
Published: April 2012

Objective

Guidelines recommend coprescription of gastroprotective agents (GPAs) in patients receiving cyclooxygenase 2 inhibitors (coxibs) who are at high risk of upper gastrointestinal (UGI) tract complications (i.e., patients with a previous complicated ulcer or with multiple risk factors). Suboptimal GPA adherence has been shown to diminish the gastroprotective effect during use of nonselective nonsteroidal antiinflammatory drugs, but little is known about the effect of GPA adherence during coxib treatment. We undertook this study to determine the association between GPA adherence and UGI tract events among patients receiving coxibs.

Methods

Using primary care data from 3 databases, we conducted a case–control study in a cohort of patients age ≥50 years who were newly starting treatment with coxibs and concomitantly taking GPAs. Patients who had a UGI tract event (bleeding or symptomatic ulcer) were matched to event‐free controls for age, sex, database, and calendar date. Coxib treatment intervals were defined as consecutive coxib prescriptions with intervening gaps not exceeding the duration of the previous coxib prescription. Adherence to GPAs was calculated as the proportion of days of coxib treatment covered by a GPA prescription. Odds ratios (ORs) with 95% confidence intervals (95% CIs) were calculated using conditional logistic regression analysis.

Results

The coxib plus GPA–treated cohort consisted of 14,416 coxib‐treated patients who received GPAs for at least 1 day, yielding 16,442 coxib treatment intervals in which a GPA was coprescribed. Most patients were treated with coxibs for <30 days. Seventy‐four patients had a UGI tract event during or shortly after a coxib treatment interval in which a GPA was coprescribed, with an incidence rate of 11.9 (95% CI 9.4–14.8) per 1,000 years of coxib treatment. The risk of UGI tract events was 1.97 (95% CI 0.84–4.60) for patients with <20% adherence to GPAs compared to patients with >80% adherence to GPAs. For every 10% decrease in GPA adherence, the risk of UGI tract events increased by 9% (OR 1.09 [95% CI 1.00–1.18]).

Conclusion

Decreasing GPA adherence among coxib‐treated patients is associated with an increased risk of UGI tract events.