bluuebunny/crossref_metadata_2025_split huggingface dataset:
Windkanalmesseinrichtung für das bistatische PTB-Wind-Lidar
Authors: Oertel Stefan , Eggert Michael , Wilhelm Paul , Hornig Julia 
Published: July 2023

Zusammenfassung
Im Zusammenhang mit dem Erreichen der Klimaziele durch den Einsatz erneuerbarer Energien wurde in der Physikalisch-Technischen Bundesanstalt (PTB) in den letzten Jahren ein bistatisches Wind-Lidar (Light detection and ranging) entwickelt und aufgebaut. Dieses Wind-Lidar ermöglicht die für Windenergieanlagen notwendige Rückführung von Windgeschwindigkeiten in Höhen von 5 m bis 250 m mit kleinsten Messunsicherheiten in beliebigem Gelände, und stellt damit erstmals eine unabhängige Alternative zu bisher eingesetzten, kostspieligen Windmessmasten dar. Der geplante Einsatz des PTB-Lidars als rückgeführtes Transfernormal im Bereich der Windfernmessung erfordert neben vorherigen Vergleichsmessungen mit anderen Windfernmesssystemen in freiem Gelände auch eine detaillierte Untersuchung des PTB-Lidars unter kontrollierbaren Strömungsbedingungen zur Validierung seiner Messunsicherheit und Überwachung seiner Langzeitstabilität. Aus diesem Grund wurde im Kompetenzzentrum für Windenergie (CCW) der PTB ein neuer, speziell konstruierter Windkanal mit einem Laser-Doppler-Anemometer (LDA) als Strömungsgeschwindigkeitsnormal auf einer Plattform in 8 m Höhe errichtet. Dies ermöglicht es, das PTB-Lidar unterhalb der Messstrecke des Windkanals zu positionieren und auf die SI-Einheiten-rückgeführte Strömungsgeschwindigkeitsmessungen mit dem Wind-Lidar durchzuführen. Der Windkanal nach Göttinger Bauart hat eine offene Messstrecke mit einer Länge von 75 cm und einer Querschnittsfläche von 50 × 50 cm2. In der Messstrecke wird eine hohe Strömungshomogenität und ein niedriger Turbulenzgrad von <0,35 % im Geschwindigkeitsbereich von 1 m/s bis 30 m/s erreicht. Die erweiterte Messunsicherheit des LDA-Referenznormals beträgt 0,16 %. Sämtliche im Windkanal durchgeführten Vergleichsmessungen zeigen eine Geschwindigkeitsabweichung zwischen dem Lidar-System und dem LDA-Referenznormal von unter ±0,5 %. Eine Optimierung der Methode zur Positionierung und damit Lokalisierung des Lidar-Messvolumens in der Windkanalmessstrecke über einen dünnen Partikelfilm führte zu einer reproduzierten Verringerung der Geschwindigkeitsabweichung auf circa −0,10 %.
Um passado (quase) esquecido: o sítio Baquirivu-Mirim e o primeiro Ciclo do Ouro brasileiro
Authors: Damin Pedro Henrique , Attorre Tiago , Brandi Rafael , Acha Milena 
Published: July 2023

A mineração do ouro foi uma das mais importantes atividades econômicas durante o período colonial brasileiro. Para além das áreas minerárias tradicionais da América Portuguesa, como Minas Gerais e Goiás, outras regiões menos conhecidas também passaram por ciclos de exploração aurífera, como a atual Região Metropolitana de São Paulo. Visando contribuir com uma discussão já em curso no âmbito da História e Arqueologia, ao longo deste artigo apresentaremos informações referentes a um sítio de mineração colonial caracterizado por engenharia de solo e estruturas de manejo hídrico, identificado em Guarulhos durante uma pesquisa arqueológica preventiva. Provavelmente explorado durante os séculos XVII e XVIII, o sítio Baquirivu-Mirim contribui para uma história da mineração do ouro em São Paulo, atividade de grande importância para assentamentos coloniais na região. Abstract:Mining was one of the most important economic activities during the Brazilian colonial period. Beyond the traditional mining areas of Portuguese America, like Minas Gerais and Goiás, other less known regions were also subjected to cycles of gold exploration, like present Metropolitan São Paulo Region. Aiming to contribute to an already initiated discussion in History and Archaeology, over this article we will present information concerning a colonial mining site characterized by soil engineering and hydric management structures identified during CRM activities at Guarulhos city urban area. Probably explored during the XVIIth and XVIIIth centuries, the Baquirivu-Mirim site contributes to a history of gold mining in São Paulo, activity of utmost importance to the colonial settlements in the region.
Combinatory Actions of Co-transmitters in Dopaminergic Systems ModulateDrosophilaOlfactory Memories
Authors: Yamazaki Daisuke , Maeyama Yuko , Tabata Tetsuya 
Published: July 2023

Dopamine neurons (DANs) are extensively studied in the context of associative learning, in both vertebrates and invertebrates. In the acquisition of male and femaleDrosophilaolfactory memory, the PAM cluster of DANs provides the reward signal, and the PPL1 cluster of DANs sends the punishment signal to the Kenyon cells (KCs) of mushroom bodies, the center for memory formation. However, thermo-genetical activation of the PPL1 DANs after memory acquisition impaired aversive memory, and that of the PAM DANs impaired appetitive memory. We demonstrate that the knockdown of glutamate decarboxylase, which catalyzes glutamate conversion to GABA in PAM DANs, potentiated the appetitive memory. In addition, the knockdown of glutamate transporter in PPL1 DANs potentiated aversive memory, suggesting that GABA and glutamate co-transmitters act in an inhibitory manner in olfactory memory formation. We also found that, in γKCs, the Rdl receptor for GABA and the mGluR DmGluRA mediate the inhibition. Although multiple-spaced training is required to form long-term aversive memory, a single cycle of training was sufficient to develop long-term memory when the glutamate transporter was knocked down, in even a single subset of PPL1 DANs. Our results suggest that the mGluR signaling pathway may set a threshold for memory acquisition to allow the organisms' behaviors to adapt to changing physiological conditions and environments.SIGNIFICANCE STATEMENTIn the acquisition of olfactory memory inDrosophila, the PAM cluster of dopamine neurons (DANs) mediates the reward signal, while the PPL1 cluster of DANs conveys the punishment signal to the Kenyon cells of the mushroom bodies, which serve as the center for memory formation. We found that GABA co-transmitters in the PAM DANs and glutamate co-transmitters in the PPL1 DANs inhibit olfactory memory formation. Our findings demonstrate that long-term memory acquisition, which typically necessitates multiple-spaced training sessions to establish aversive memory, can be triggered with a single training cycle in cases where the glutamate co-transmission is inhibited, even within a single subset of PPL1 DANs, suggesting that the glutamate co-transmission may modulate the threshold for memory acquisition.
Characterization of the REC114‐MEI4‐IHO1 complex regulating meiotic DNA double‐strand break formation
Authors: Laroussi Hamida , Juarez‐Martinez Ariadna B , Le Roy Aline , Boeri Erba Elisabetta , Gabel Frank , de Massy Bernard , Kadlec Jan 
Published: July 2023

AbstractMeiotic recombination is initiated by the formation of DNA double‐strand breaks (DSBs), essential for fertility and genetic diversity. In the mouse, DSBs are formed by the catalytic TOPOVIL complex consisting of SPO11 and TOPOVIBL. To preserve genome integrity, the activity of the TOPOVIL complex is finely controlled by several meiotic factors including REC114, MEI4, and IHO1, but the underlying mechanism is poorly understood. Here, we report that mouse REC114 forms homodimers, that it associates with MEI4 as a 2:1 heterotrimer that further dimerizes, and that IHO1 forms coiled‐coil‐based tetramers. Using AlphaFold2 modeling combined with biochemical characterization, we uncovered the molecular details of these assemblies. Finally, we show that IHO1 directly interacts with the PH domain of REC114 by recognizing the same surface as TOPOVIBL and another meiotic factor ANKRD31. These results provide strong evidence for the existence of a ternary IHO1‐REC114‐MEI4 complex and suggest that REC114 could act as a potential regulatory platform mediating mutually exclusive interactions with several partners.
SUNNAH ALLAH BERKENAAN BANGUN DAN JATUH TAMADUN MENURUT AL-QURAN DAN TEORI-TEORI TAMADUN: SUATU PENELITIAN PERBANDINGAN
Authors: Sulaiman Mansor , Ahmad Hasan 
Published: July 2023

Sunnatullah (The Command of Allah) in the rise and fall of human civilization has actually been destined by God and the matter was heavily mentioned in the al-Quran. This paper aims at clarifying the truth of the Sunnatullah as revealed in the al-Quran by comparing with studies carried out by renowned historical and civilizational scholars. To examine, these civilization advancement theories that have been empirically studies by the scholars such as Ibn Khaldun, Arnold Toynbee and Malik Bennabi are comparatively analysed with those mentioned in the al-Quran. Through this comparative analysis, it is concluded undoubtedly that the Sunnatullah of the rise and fall of civilization as revealed in the al-Quran is a great truth. This conclusion is made based on the consistency of the Quranic facts with the findings given by the scholars through historical proofs and human reality in life.

Sunnah Allah berkenaan bangun dan jatuh tamadun merupakan peraturan yang ditentukan Allah di sebalik perjalanan sesebuah tamadun manusia. Ia merupakan salah satu daripada perkara yang banyak disentuh di dalam al-Quran. Tulisan ini bertujuan menjelaskan kesahihan Sunnah Allah yang dikemukakan al-Quran ini menerusi perbandingan dengan kajian-kajian yang telah dilakukan oleh beberapa sarjana dalam bidang sejarah dan tamadun manusia. Untuk itu, teori-teori perkembangan tamadun yang dihasilkan menerusi kajian berbentuk empirikal yang dilakukan oleh tokoh-tokoh seperti Ibnu Khaldun, Arnold Toynbee dan Malek Bennabi dikaji dan seterusnya dilakukan analisis perbandingan antara penjelasan al-Quran dan teori-teori ini. Menerusi analisis perbandingan ini didapati bahawa Sunnah berkenaan bangun dan jatuh tamadun yang dikemukakan Allah menerusi al-Quran merupakan suatu kebenaran yang tidak dapat dinafikan kesahihannya. Kesimpulan ini dikemukakan berdasarkan kepada keselarian antara penjelasan al-Quran berkenaan sunnah Allah ini dengan penemuan kajian yang dikemukakan para sarjana yang berkenaan menerusi bukti-bukti sejarah dan realiti yang berlaku dalam hidup manusia.
KEBOLEHLAKSANAAN PEMBELAJARAN MELALUI APLIKASI MICROSOFT TEAMS DI KOLEJ KOMUNITI KOTA MARUDU, SABAH
Authors: Abdul Wahab Khairul Izwan , Zulkurnain bin Hassan  
Published: July 2023

This study aims to identify the perception of students of Kolej Komuniti Kolej Komuniti Marudu, Sabah (KKKMS) about the learning experience and the obstacles faced in using the Microsoft Teams application in teaching and learning. A total of 70 KKKMS students from all programs were taken as study respondents. This study was conducted using a questionnaire as a research instrument and the data was analyzed descriptively and inferentially. Data analysis was processed using Statistical Packages for Social Sciences for Windows Version 22.0 (SPSS) software and the results of the study were reported in the form of mean, standard deviation, percentage and T-Test". The results show that the level of perception of the Microsoft Teams Official application learning experience is high (mean 3.66). Barriers were tested in six aspects where there were four main barriers faced which were the highest technological barriers (mean 3.52), the second highest were situational barriers (mean 3.40), the third were learning style barriers (mean 3.26) and the fourth highest barrier was instructional barriers (mean 3.11). The findings also found that there is no significant relationship between learning experiences and the obstacles faced by students.

Kajian ini bertujuan untuk mengenalpasti persepsi pelajar Kolej Komuniti Kota Marudu, Sabah (KKKMS) tentang pengalaman pembelajaran dan halangan-halangan yang dihadapi dalam penggunaan aplikasi Microsoft Teams dalam pengajaran dan pembelajaran. Seramai 70 orang pelajar KKKMS dari semua program diambil sebagai responden kajian. Kajian ini dijalankan dengan menggunakan borang soal selidik sebagai instrumen kajian dan data dianalisis secara deskriptif dan inferensi. Data analisis diproses menggunakan perisian Statistical Packages for Social Sciences for Windows Version 22.0 (SPSS) dan hasil dapatan kajian dilaporkan dalam bentuk min, sisihan piawaian, peratusan dan Ujian T-Test”. Hasil dapatan menunjukkan tahap persepsi pengalaman pembelajaran aplikasi Microsoft Teams Official adalah tinggi (min 3.66). Halangan diuji dalam enam aspek dimana terdapat empat halangan utama yang dihadapi iaitu tertinggi halangan teknologi (min 3.52), kedua tertinggi halangan situasi (min 3.40), ketiga halangan gaya pembelajaran (min 3.26) dan halangan keempat tertinggi adalah halangan arahan (min 3.11). Dapatan juga mendapati tidak terdapatnya hubungan yang signifikan antara pengalaman pembelajaran dengan halanganhalangan yang dihadapi pelajar.
PENGUKUHAN HAFAZAN PELAJAR MELALUI MODUL LIQA (LATIHAN INTENSIF HAFAZAN AL-QURAN) : SATU PENDEKATAN
Authors: Mohamed Mohd Hasdi , Rashidi Abbas  
Published: July 2023

The memorization of Al Quran among Muslims is emphasized especially to the young generation today. Moreover, it is a priviledge that not everyone is able to do and is an exclusive virtue of that individual in the eyes of God in particular and in society in general. So, the variety of Al Quran memorization methods that have appeared in the recent era to some extent help the Al Quran memorization process to be more organized and organized. However, all of these methods are difficult to meet the criteria of memorization methods that help students to memorize Al Quran practically and have less of a positive impact on students' memorization results because they focus on organizing students' schedules. The main objective of this study is to introduce the Al Quran memorization module: The LIQA Module (Intensive Al-Quran Memorization Training and to know how to apply the module in the memorization process. The LIQA module comes with 3 main steps: the preparation step, the memorization step and the strengthening step. The results of the application In this module, the author found that LIQA's memorization module was successful in producing excellent memorization and covering the needs of memorization.

Hafazan Al Quran dalam kalangan umat islam amat dititikberatkan terutama kepada generasi muda kini. Lebih-lebih lagi ia merupakan kelebihan yang tidak semua orang mampu untuk melakukannya dan merupakan nilai tambah yang eksklusif kepada individu tersebut di sisi Allah khususnya dan dalam kalangan masyarakat umumnya. Jadi, kepelbagaian kaedah hafazan Al Quran yang muncul pada era terkini sedikit sebanyak membantu proses hafazan Al Quran supaya lebih teratur dan tersusun. Namun, kesemua kaedah tersebut sukar untuk memenuhi kriteria-kriteria kaedah hafazan yang membantu pelajar untuk menghafaz Al Quran secara praktikal dan kurang memberikan impak yang positif kepada hasil hafazan pelajar kerana ia memberi fokus kepada penyusunan jadual pelajar. Objektif utama kajian ini adalah untuk memperkenalkan modul hafazan Al Quran : Modul LIQA (Latihan Intensif Hafazan al-Quran dan mengetahui kaedah pengaplikasian modul tersebut dalam proses hafazan. Modul LIQA didatangkan dengan 3 langkah utama langkah persediaan, langkah hafazan dan langkah pengukuhan. Hasil daripada pengaplikasian modul ini, penulis mendapati modul hafazan LIQA berjaya menghasilkan hafazan yang sangat baik serta merangkumi keperluan hafazan.
MAQASID SYARIAH SEBAGAI SATU PANDUAN DALAM PENGURUSAN WARGA EMAS MUSLIM DI MALAYSIA
Authors: T.M. Tuan Sidek , Ismail Hasanuddin  
Published: July 2023

Warga emas ialah peringkat usia istimewa yang memerlukan pengurusan tersendiri. Peningkatan golongan ini dan perubahan gaya hidup masyarakat kontemporari menyebabkan pengurusan diri golongan ini perlu diberi perhatian. Di Malaysia, terdapat dasar dan strategi yang telah digubal dan dirangka dalam pengurusan warga emas berlandaskan pelbagai rujukan. Walau bagaimanapun, tidak disebut secara langsung ajaran Islam turut dijadikan sandaran dalam penggubalan tersebut tanpa dinafikan secara asasnya dasar dan strategi yang dibuat bermatlamat untuk mendatangkan kebaikan dan tidak bercanggah dengan ajaran Islam. Walaupun begitu, sebagai satu agama yang syumul, Islam telah menyediakan panduan asas dalam pelbagai bentuk pengurusan termasuk pengurusan golongan warga emas. Sehubungan dengan itu, tulisan berbentuk konsep berkaitan maqasid syariah sebagai satu panduan dalam pengurusan warga emas Muslim di Malaysia dibuat bagi menjelaskan penggunaan pendekatan dan prinsip maqasid syariah dalam pengurusan warga emas khususnya yang beragama Islam. Tulisan ini berasaskan kepada data yang diperolehi melalui kajian yang bersifat kualitatif dari jenis kajian perpustakaan. Rujukan kepada sumber utama ajaran Islam serta prinsip-prinsip maqasid syariah dilakukan sebagai sandaran terhadap cadangan yang dikemukakan. Semoga tulisan ini dapat membantu kefahaman masyarakat dalam usaha menambah baik dan memperkasa pengurusan golongan ini.
The elderly are a special age group that requires special management. The increase of this group and the change in the lifestyle of contemporary society cause the self-management of this group to be given attention. In Malaysia, there are policies and strategies that have been formulated in the management of the elderly based on various references. However, it is not directly mentioned that Islamic teachings are also used as a basis in the drafting without denying that the policies and strategies that are made are aimed at bringing good and may not contradict Islamic teachings. Even so, as a comprehensive religion, Islam has provided basic guidance in various forms of management, including the management of the elderly. In connection with that, a conceptual article related to maqasid shariah as a guide in the management of elderly Muslims in Malaysia was made to explain the use of the approach and principles of maqasid shariah in the management of the elderly.This article is based on data obtained through a qualitative study of the type of library research. Reference to the main sources of Islamic teachings as well as the principles of maqasid shariah is done in support to the proposals presented. Hopefully this article can help the community’s understanding in an effort to improve and empower the management of this group.
PERMASALAHAN YANG DIHADAPI OLEH BRITISH SEMASA MENDUDUKI TANAH MELAYU DARI KACAMATA BRITISH 1786-1957
Authors: Hasnah Hussiin  
Published: July 2023

Pendudukan British di Tanah Melayu adalah antara topik paling penting dalam sejarah negara ini. Pendudukan British telah meninggalkan banyak kesan sama ada dari aspek politik, ekonomi, sosial, budaya dan pemikiran masyarakat di negara ini yang mana kesannya boleh dilihat sehingga ke hari ini. Persoalannya, apakah pendudukan British di negara ini berjalan dengan lancar dan tiada masalah?. Kajian ini dilakukan bagi melihat apakah masalah-masalah yang mana ia diakui sendiri oleh pegawai British yang mewakili orang British dan ternyata British juga mempunyai beberapa kelemahan dalam mentadbir dan menaungi Tanah Melayu. Tanpa kerjasama pemerintah dan rakyat, British tidak mampu menduduki dan memerintah negara ini selama beratus tahun. Kajian ini menggunakan metodologi kajian kepustakaan berdasarkan laporan yang direkodkan oleh pegawai British di Tanah Melayu bertarikh 1954.
The British occupation of Malaya is one of the most important topics in the history of this country. The British occupation has left many effects either from the political, economic, social, cultural and community. Is the British occupation in this country going smoothly and without problems?. This study was carried out to see what the problems were which were admitted by the British officials who represented the British people and it turned out that the British also had some weaknesses in governing and protecting Malaya. Without the cooperation of the government and the people, the British would not be able to occupy and rule this country for hundreds of years. This study uses a literature review methodology based on reports recorded by British officers in Malaya dated 1954.
KEMASUKAN PENGARUH ISLAM DALAM PEMBENTUKAN SEJARAH NEGARA BANGSA MALAYSIA
Authors: Ahmad Farid Abdul Jalal  , Rahimin Affandi Abdul Rahim  , Mohamad Hilmi Mat Said  , Awang Azman Awang Pawi  
Published: July 2023

Sesuai dengan penegasan al-Quran, ilmu sejarah dapat dijadikan alat utama untuk mengetahui asas kenapa sesuatu fenomena berkembang dalam masyarakat. Berasaskan kepada teori ini, kajian ini akan menggunakan analisis kritikal yang dibuat terhadap sumber sejarah Malaysia. Hasilnya, kajian mendapati tiga faktor utama yang mencorakkan sejarah Malaysia. Ketiga faktor ini merangkumi kepercayaan Melayu pra Islam; impak Islam dalam masyarakat dan pengaruh penjajahan colonial British. Ternyata sekali ketiga-tiga pengaruh ini saling mempengaruhi antara satu sama dan ianya tetap dominan hingga pada zaman sekarang.
By referring to Qur'an, the science of history can be used as the main tool to explorer the phenomenon of society development. Based on this theory, this study will use a critical analysis made on Malaysian historical sources. As a result, the study found three main factors that shaped the history of Malaysia. These three factors include pre-Islamic Malay beliefs; the impact of Islam in society and the influence of British colonialism. It turns out that these three influences influence each other and it remains dominant until today.
Distribution of diversity of fishes in an Andean fluvial network
Authors: Valencia-Rodríguez Daniel , Herrera-Pérez Juliana , Botero-Escalante David , García-Melo Luis , Arenas-Serna Diana , Álvarez-Bustamante Frank , Parra-R Emerson , Jiménez-Segura Luz Fernanda 
Published: July 2023

Introduction: The distribution of freshwater fishes in the Colombian Andes results from the interaction between historical and recent factors. Currently, the Andean landscape is facing rapid transformation processes. However, the knowledge regarding species distribution and environmental requirements is advancing slower than the transformations underway in the fluvial networks. Objective: To understand the conformation of the fish assemblage in the middle and lower Cauca River basin, considering the local environmental context before the construction of the Ituango Dam, and quantifying β diversity and its two components (turnover and nestedness) amongst local fish communities. Methods: 58 localities were monitored during nine years (between February 2010 and November 2018), the period before the dam's operation. The species richness (α-diversity), species turnover (β-diversity), and assemblage composition were estimated for the given localities. Results: 114 species were recorded, representing ~ 49 % of the total richness of known species for the Magdalena basin. The richness distribution showed that the number of species varies among the aquatic environments. Swamps presented the most significant number of species, followed by the Cauca River, while streams had the lowest values of richness. The spatial analyses of β-diversity revealed a high variation component in the study area due to species replacement between the aquatic environments. Conclusions: The implementation of long-term monitoring allowed us to recognize that the Cauca River basin conserves a great variety of species-rich environments. The species turnover indicates a high proportion of endemism or multiple sites with unique species. Finally, our study will serve as a baseline to verify, over time, whether the dam's construction is associated with essential changes in the structure of fish communities.