bluuebunny/crossref_metadata_2025 huggingface dataset:
PERENCANAAN SALURAN IRIGASI SEKUNDER D.I BATANG TAMBANGAN JORONG LUNDAR NAGARI PANTI TIMUR KECAMATAN PANTI - KAB. PASAMAN
Authors: Saputra M.Azi , Masril Masril , Susanti Yusman Ana
Published: June 2023

The existence of the flow of water from one place to another has a stream whose irrigation buildings are still walled so that many plots of people's rice fields are not fed by the flow of water. Like the Jorong Lundar area which has a rice field area of ± 150 ha. However, irrigation channels are still not smooth and there are still many rice fields that are not fed by water. Various efforts have been made to increase food production yields, but there are still many people who cannot grow rice. The researcher reviewed how the water shortage was in the Jorong Lundar rice field area and calculated the water discharge requirement for the flow of water to the rice fields. Data collection in this study is divided into two, namely primary and secondary data collection and uses rainfall data for the last 10 years. processing the data using the harsper method and the gumbel method. Based on the calculation of the design dimensions of the channel with a cross-sectional area of 1.7 m² and the channel discharge when flood water is 2.87 m³/sec, the results of secondary irrigation canal planning are obtained where Q 5.65 m3/s is able to accommodate the highest water discharge with Qmax 2, 87 m3/s. The results of calculations using the Gumbel method for R 5 TH are 130 mm, the results of calculations using Harspers are 2.87 m3/sec. The results of data analysis and calculations are expected to be used as input and reference by the relevant agencies. It is necessary to have an active role from the community so that they can maintain the smooth process of irrigating water and maintain water structures so that the irrigation area can provide benefits to the agricultural community. Keywords: Harsper Method, Gumbel Method, Irrigation, Secondary Canal
ANALISIS KONDISI PERKERASAN JALAN MENURUT METODE BINA MARGA DAN METODE PCI JALAN RAYA LINTAU – PAYAKUMBUH
Authors: Fajri Dicky Rizaldi , Eka Priana Surya , Putra Yorizal
Published: June 2023

On the Lintau - Payakumbuh highway, which connects the two areas, which are busy with light vehicles and heavy vehicles, the road surface is damaged. In this study, the authors conducted a survey on the Lintau - Payakumbuh road, Jorong Kalumpang, Nagari Lubuak Jantan, along KM 37 - KM 39, with a road width of 4.8 m. As time goes by, there is an increase in community needs in the mobility of daily activities with an increase in the volume of vehicles, resulting in damage to the pavement on this road segment. The purpose of this study was to determine the type and level of damage to the pavement that occurred on the Lintau – Payakumbuh road, Jorong Kalumpang, Nagari Lubuak Jantan with the PCI and Bina Marga methods and provide suggestions for maintenance and repair efforts. The types of damage found included crocodile cracks, subsidence, patches, longitudinal cracks, holes. In the PCI method the value obtained is 87.3 with excellent road conditions, in the Bina Marga method the priority order value is 10.6 with a routine maintenance program. From the results of the two methods, the values and results are almost the same, namely the road conditions are still in good condition. Handling road repairs by patching potholes, leveling subsidence, patching cracks on damaged roads. Routine maintenance should be carried out on this road segment in order to provide comfort for its users, such as maintenance on the shoulder of the road, drainage channels, and making rainwater barriers to avoid damage. Keywords : Analysis of road damage, PCI, Bina Marga, Demage rate, Routine maintenance.
ANALISIS FAKTOR-FAKTOR PENYEBAB KECELAKAAN LALU LINTAS DI JALAN RAYA PADANG-BUKITTINGGI KM 67
Authors: Van Yallen Yogi , Yermadona Helga
Published: June 2023

Kecelakaan merupakan tindakan yang tidak direncanakan dan tidak terkendali, ketika aksi dan reaksi objek, bahan, atau radiasi menyebabkan cedera atau kemungkinan cidera. Kecelakaan tidak terjadi begitu saja, melainkan ada penyebab nya, karena kecelakaan harus di analisa dan ditemukan,agar tindakan korektif kepada penyebab itu dapat dicegah. Tujuan penelitian ini adalah untuk mencegah atau mengurangi kemungkinan terjadinya suatu kecelakaan di jalan raya Padang- Bukittinggi KM 67. Metode penelitian yang dilakukan adalah dengan cara melakukan pengambilan data kecelakaan lima tahun terakhir dan meninjau langsung serta mengamati lokasi. Hasil penelitian dimulai dari analisis data secara primer dengan mengamati langsung kondisi jalan, kelengkapan rambu jalan, dan kerusakan jalan. Data sekunder juga dilakukan dengan meminta data kecelakaan pada instansi terkait. Kesimpulan penelitian ini kecelakaan dapat disebabkan oleh kelalaian manusia, kurangnya rambu jalan,kerusakan pada jalan, maupun kendaraan.
PERENCANAAN STRUKTUR ATAS PADA GEDUNG RUSUNAWA DI PANYALAIAN KAB TANAH DATAR
Authors: Amrizal Amrizal , Kurniawan Deddy , Herista Febrimen
Published: June 2023

Perencanaan Struktur Atas Pada Gedung Rusunawa Di Panyalaian Kab Tanah Datar merupakan sebagai salah satu cara meningkatkan prasaran dibidang hunian agar terbentuknya tempat tinggal yang ramah, layak serta memenuhi standar kelayakan kependudukan yang terdapat di kota Padang Panjang. Perencanaan Struktur Atas ini bertujuan untuk merencanakan struktur atas yang sesuai dengan peraturan dan syarat yang berlaku pada Standar Nasional Indonesia sehingga tercapai bangunan yang aman, kuat dan memiliki kualitas yang baik. Dari hasil pemodelan SAP 2000 didapatkan ukuran balok 35 cm  50 cm, tulangan tumpuan 4 D 20, tulangan lapangan 4 D 20 dengan tulangan sengkang   10  200. Kolom 70 cm  70 cm dengan penulangan total aksial 10 D 16, tulangan geser  10  200 mm. Pelat lantai dan pelat atap dengan jarak  10  – 300 mm. Dengan menggunakan mutu beton K 250 . Dari Perencanaan Struktur Atas Gedung Rusunawa Di Panyalaian Kab Tanah Datar diperoleh kesimpulan struktur atas gedung telah memenuhi syarat dan ketentuan yang terdapat dalam Standar Nasional Indonesia sehingga aman, layak dan memiliki kualitas yang baik untuk dihuni.Kata Kunci : Struktur atas, SAP 2000, Mutu beton K = 250, Tulangan.
TINJAUAN PERENCANAAN EMBUNG TALAGO MUMBUANG KAMANG MUDIAK
Authors: Maulana Iqbal , Ishak Ishak , Herista Febrimen
Published: June 2023

Air merupakan salah satu kebutuhan mendasar bagi daya tahan tubuh manusia. Tak hanya itu, aksesibilitas air bersih merupakan tanda adanya bantuan pemerintah dari individu suatu daerah. Di wilayah Nagari Kamang Mudiak, Kecamatan Kamang Magek, Kabupaten Agam, terdapat banyak gagang padi yang hanya mengandalkan air, sedangkan minat dalam negeri untuk wilayah metropolitan dan pedesaan juga sangat kecil. Hal ini menghambat potensi agraris karena tidak adanya aksesibilitas. Untuk memanfaatkan air tersebut, dibuatlah embung. Hal ini bertujuan ketika terjadinya musim kemarau, air yang ditampung sebelumnya pada embung bisa dimanfaatkan semaksimal mungkin. Embung merupakan pelestarian air yang berfungsi sebagai danau untuk mengumpulkan air selama musim hujan dan dapat digunakan untuk membantu organisasi hortikultura, perkebunan, dan hewan peliharaan selama musim kemarau. Dalam perencanaan pembuatan, embung akan dibangun dengan luas daerah area 1.5 hektar sumber air dari daerah sungai kecil Indragiri wilayah sungai Indragiri – Akuaman pada bukit barisan. Pengolahan data curah hujan menggunakan metode Normal, metode Log Normal, metode Gumbel, Metode Log Pearson Type III. Dari data curah hujan tersebut, didapatkan perencanaan embung dengan tinggi 4 m, lebar mercu 3 m, lebar dasar 50 m, elevasi mercu +350,99 m, elevasi dasar +348 m, kemiringan hulu 2,5, kemiringan hilir 2,0, kapasitas tampungan 47 m3 dan menggunakan saluran irigasi tersier dengan irigasi kuarter didaerah pertanian.Kata Kunci : Air, Embung, Curah Hujan, Perencanaan, DAS.
PERENCANAAN STRUKTUR GEDUNG PESANTREN ABDUL KARIM SYUEIB MADRASAH ALIYAH SWASTA TERPADU GUGUK RANDAH TABEK SAROJO KECAMATAN IV KOTO KABUPATEN AGAM
Authors: Lisya Putra Raihan Khalid , Masril Masril , Susanti Yusman Ana
Published: June 2023

Pesantren dibangun untuk menjadi lembaga keilmuan yang mencakup seluruh aspek-aspek kehidupan dalam bersosial dan budaya, terutama dalam hal keagaaman yang menjadi tiang utama setiap muslim yang taat Perkembangan pendidikan keagaaman meningkat cukup signifikan di daerah Kabupaten Agam dan sekitarnya, hal merupakan dampak baik dari animo masyarakat terhadap mutu pendidikan di Pesantren yang terus membaik Pembangunan gedung bertingkat merupakan salah satu cara untuk memenuhi sarana dan prasarana yang dibutuhkan dalam kegiatan belajar mengajar. Dari hasil analisis struktur inilah maka didapatkan penulangan struktur berdasarkan analisis penulis. Hasil yang didapat material yang digunakan baja fy = 420 Mpa dan mutu beton fc’ = 30 MPa. Untuk penulangan pelat lantai dipakai tulangan untuk arah x = Ø13 – 250 , sedangkan arah y = Ø13 – 285. Perencanaan kolom memakai mutu baja fy = 420 Mpa dan mutu beton fc’ = 30  MPa dengan ukuran untuk kolom 1 60 cm x 60 cm dipakai tulangan 22 D13, dan untuk kolom 2 50cm x 50cm dipakai tulangan 18 D13. Sedangkan perencanaan balok menggunakan mutu baja fy = 420 Mpa dan mutu beton fc’ = 30 Mpa dengan ukuran untuk balok induk 60cm x 35cm dan balok anak  40cm x 25cm.  Kata kunci: Struktur Gedung, Pesantren, Kelas, Penulangan.
PERENCANAAN PEMBANGUNAN GEDUNG BARU 3 LANTAI “TABEK MAINAN” DI JALAN M.YAMIN KELURAHAN AUR KUNING KECAMATAN AUR BIRUGO TIGO BALEH KOTA BUKITTINGGI
Authors: Andira Shinta , Kurniawan Deddy , Susanti Yusman Ana
Published: June 2023

The number of buildings that collapsed was caused by the ability of a structure that was not able to support the working load, causing significant loss of property and even life. Therefore, in planning the design of a building structure, it must be really full of accuracy, careful calculations and according to the requirements with reference to the Indonesian National Standard (Indonesian Loading Regulations for Buildings and Buildings SNI-2847-2019 and SNI-1726-2019). This study aims to plan the dimensions of structural elements, calculation of structural reinforcement. The structural element data used are the results of the preliminary design (Preliminary Design). The analysis is assisted by the SAP2000 Version 11 program with the selection of a network system structure system (Grid System). Based on the results of the Preliminary design calculation, data is obtained for the use of the superstructure of the 1st floor to the 3rd floor where the cross section of the main column is 40 x 50 cm, the terrace column is 30x30 cm, the main beam is 30x40 cm, and the joist is 20x30 cm. The planning of floor slabs and also not concrete which was carried out with Preliminary design was found to be 12 cm thick. Planning for the foundation using a well foundation with a depth of 2 meters, and using a concrete buis with a diameter of 1 meterKeywords: Preliminary design, SAP2000 analysis, reinforcement calculation, foundation bearing capacity
EVALUASI KINERJA SIMPANG TIGA TAK BERSINYAL PASAR IBUH PAYAKUMBUH
Authors: Rendra Riyaldi , Eka Priana Surya , Yermadona Helga
Published: June 2023

Abstrack: The Payakumbuh signalless intersection is a busy traffic intersection due to the high volume of vehicles and high side friction caused by market activity. The Pasar Ibuh intersection connects four sub-districts so that many vehicles pass through the intersection which can cause traffic jams and even traffic accidents. This study aims to evaluate the performance of the signalless intersection of Pasar Ibuh Payakumbuh and find alternative solutions to the problems that occur at these intersections. The research method used is to calculate and observe the volume of traffic flow through recording and observing the location of the intersection to find out the geometry of the intersection and existing side barriers. This research concludes that the peak hour of traffic flow at the Pasar Ibuh Payakumbuh intersection occurs at 16:00 - 17:00 WIB. From the analysis results, the capacity value (C) is = 2824.557 smp/hour, traffic flow (Q) is = 2399 smp/hour, delay (D) is = 14.161 seconds/smp, and the degree of saturation value (DS) is = 0.85. Based on the value of the degree of saturation, the performance level of the intersection is not good. The alternative is to prohibit turning right for minor roads. So that the resulting analysis is a capacity value (C) of = 3172.826 smp/hour, traffic flow (Q) of = 2399 smp/hour, delay (D) of = 12.715 seconds/smp, and the degree of saturation (DS) = 0.76, based on the value of the degree of saturation, it can be concluded that the intersection performance is good.Keywords : Signalless Three-way Intersection, Side Barriers, Degree of Saturation, Intersection Performance, Performance Evaluation
EVALUASI KINERJA STRUKTUR GEDUNG SDN 02 LUBUK BUAYA MENGGUNAKAN METODE PUSHOVER ANALYSIS PADA PROGRAM SAP 2000
Authors: Wardiansyah Alfandi , Masril Masril , Zulhedi Zulhedi
Published: June 2023

Abstrak : Gedung SDN 02 Lubuk Buaya yang berlokasi di kota Padang Provinsi Sumatera Barat merupakan salah satu tempat prasarana pendidikan yang dilakukan pembangunan ulang, gedung tersebut akan dijadikan menjadi dua lantai dikarenakan penambahan peserta didik , maka dari itu perlu dilakukan pengecekan kinerja struktur gedung tersebut menggunakan metode analisis pushover. Analisis pushover berdasarkan ATC-40 merupakan salah satu komponen  performance based seismic design yang memanfaatkan teknik analisa non linear dengan bantuan program SAP 2000 untuk menganalisa perilaku struktur dari gempa dan beban-beban yang ada pada struktur, sehingga dapat diketahui kinerjanya pada kondisi kritis yang menjadi sarana untuk mengetahui kinerja pada gedung tersebut. Dari hasil evaluasi kinerja struktur gedung SDN 02 Lubuk Buaya , perencanaan struktur suatu bangunan tidak sesuai dengan konsep desain kolom kuat balok lemah, dari hasil analisis yang diperoleh Simpangan total maksimum  arah x-x yaitu pada step 4 lebih kecil dari simpangan izin gedung, dengan angka 42,128 < 60 mm yang dambil dari perkalian tinggi gedung antar lantai dengan koefisien kategori resiko gempa (kategori resiko IV), Evaluasi pada arah xz masih dalam keadaan aman karena seluruh elemen kolom dan balok pada portal muncul sendi plastis dengan level A-B yang mana masih bersifat elastis yang ditandai dengan titik berwarna merah muda Distribusi sendi plastis yang terjadi pada semua step memperlihatkan tidak ada komponen struktur yang melewati batas kinerja, sehingga dapat dinyatakan kinerja komponen struktur masih dalam keadaan aman, Berdasarkan hasil analisa spectrum kapasitas arah x, nilai simpangan total maksimum sebesar 0,005 mm dan simpangan inelastic masksimum sebesar 0,002 mm. berdasarkan ATC-40 tahun 1996, hasil dari perhitungan tersebut masuk kedalam kelas Immediate Occupancy (IO) yang artinya apabila terjadi gempa tidak akan menyebabkan kerusakan yang signifikan dan Untuk hasil output dari displacement pada kurva spectrum kapasitas y-y tidak muncul simpangan totalnya karena tidak ada perpotongan kurva pushover demand  y-y dengan kurva kapasitas spectrum y-y.dan pada displacement pushover pada kurva y-y terlalu kecil, maka tidak terlalu berpengaruh  kinerja struktur terhadap kurva y-y dengan besar displacement sebesar 0,0856 mm.Kata Kunci : Gempa, Pushover, Sendi Plastis
PERANCANGAN APLIKASI CIVIL ENGINEERING CALCULATOR BERBASIS ANDROID MENGGUNAKAN VSODE DAN ANDROID STUDIO
Authors: Sari Juita , Octiani Safitri Renggita , Masril Masril , Nurhasanah Habirun Asiya
Published: June 2023

Abstrak: Aplikasi civil engineering calculator adalah program siap pakai yang direka untuk melaksanakan suatu fungsi bagi pengguna atau aplikasi yang lain dan dapat digunakan oleh sasaran yang dituju untuk mendapatkan suatu hasil perhitungan. Tujuan dari penelitian ini adalah membuka wawasan dan pengetahuan baru tentang teknologi dan database, menerapkan ilmu baik secara teknis maupun teori yang telah diperoleh selama mengikuti pendidikan ke dalam aplikasi nyata untuk memperoleh aplikasi yang dapat menghitung secara instan perhitungan tentang pembagian bahan dan tenaga kerja di teknik sipil khususnya beton dan atap. Perencanaan pembuatan aplikasi ini di rancang dengan aplikasi android studio. Sebelum perancangan dilakukan maka dibuat desain yang akan di pakai pada aplikasi, seperti desain logo, dan tampilan aplikasi yang akan di buat dengan bantuan canva. Hasil penelitian Aplikasi Civil Engineering Calculator didapat dari perkalian anatara indeks dan volume. Indeks yang di masukkan didapat dari AHSP sesuai SNI yang ada. Dari perencanaan pembuatan aplikasi ini maka diperoleh kesimpulan aplikasi dibuat dengan pemrograman java yang sudah tersedia di aplikasi android studio. Aplikasi civil engineering calculator terdiri dari beberapa menu seperti menu home, menu about, dan menu calculator yang mana dalam masing menu terdapat halaman yang memuat detail perhitungan beton dan atap.Kata Kunci: Aplikasi Mobile, android studio.
The House That Jacques Built (Goes up in Flames); or, Mal d’Écologie
Authors: Koutajian Adam
Published: June 2023

Although much headway has been made since the Derridean notion of the ‘general text’ was recuperated by eco-critics to imbue the philosophy of life with deconstructive rigor, the recent publication of Jacques Derrida’s Life Death seminar provides an opportunity for a renewed engagement. Parallel to his sustained elaboration of a non-dialectical reckoning with life (death) were a series of developments in the study of thermodynamic complex systems that similarly sought to demystify the pervasive vitalism within the life sciences. Derrida’s grammatological interrogation of the life/death dialectic takes the ‘textualization’ of genetic life as a starting point for articulating a logic of supplementarity that reorients our position in relation to our lived environments. ‘Writing’, however, cannot help but invoke the archive along with all its destructive impulses ( Destruktionstrieb). If the archive invokes the law of the house ( oikos), then the archive perhaps names the archive of the archive, which Derrida was all too aware of as the site for the annihilation of memory and the release of pure loss. A grammatological reading of this entropic textuality would thus consider how the irreducibility of absolute destruction might nevertheless offer a path ‘toward the incalculability of another thought of life.’
Color Saturation: Upper and Lower Percentage Histogram Manipulation
Authors: Obert Kyra , Schudt Maria , Bentley Ian
Published: June 2023

There are various color correction techniques that can be applied to digital photographs to account for environmental lighting variations. This manuscript contains a proposed method for such color correction. The method involves saturating an image by a specified percentage of its pixels via upper and lower percentage histogram manipulation using the image’s RGB histograms. Variations of this new technique, the white balance (WB) correction method, and a multivariable fit are used to test its performance against common color correction techniques. The findings demonstrate that the upper and lower percentage histogram manipulation method is not only more applicable to photos because it doesn’t require calibration regions to be sampled but it is also more consistent in its correction of photos when there are substantial gray scale features (e.g. a black and white grid or text). Our motivation for testing these techniques is to find the most robust color correction technique that is broadly applicable (not requiring a color checker chart) and is consistent across different lighting. KEYWORDS: Color Correction; Histogram Manipulation; Saturation; White Balance; Scientific Image Analysis; Color Comparisons; Euclidean Distance; Standard Deviation; Color Difference
Identification of Carbohydrates Metabolic Related Enzymes for Lipid Production in Botryococcus sp., a Microalgae Isolated from Taman Negara Endau Rompin
Authors: ZUBAINATU ABBA  , SITI FATIMAH ZAHARAH MOHAMAD FUZI  , HAZEL MONICA MATIAS-PERALTA
Published: June 2023

Botryococcus is a microalgal genus known for its ability to generate and accumulate substantial amounts of lipids via carbohydrate metabolism. This work determined the metabolic pathways and enzymes involved in carbohydrate metabolism leading to increased synthesis of fat in Botryococcus sp. Relevant intracellular and extracellular metabolites were extracted and quantified using chromatographic analysis. Enzymes involved in carbohydrate metabolism leading to lipid formation in Botryococcus sp. under natural conditions were also discovered by one-dimensional gel electrophoresis followed by proteomic mass spectrometry (LC-MS/MS) and database searching. Proximate analysis demonstrated 23.0% total carbohydrate, 16.0% protein and 61.0% lipid per milligram biomass dry weight of Botryococcus sp. The extracellular metabolites constitute mostly of cyclohydrocarbons, nitrogenated hydrocarbons, siloxanes, phenols, and phenol derivatives. A glycolytic enzyme “enolase,” which can create phosphoenolpyruvate and subsequently convert it into pyruvate, was found in this study. This study revealed that enolase provided an alternate pathway to export fixed carbon to the cytoplasm, hence providing a shorter route to lipid production than the normal process via the plastid leading to the manufacture of more lipids in the cells of Botryococcus sp. than other microalgae of the same group.
Species Diversity and Assemblage of Mangroves at Setiu Wetland, Terengganu, Malaysia
Authors: RAHMAN ABUL FAIZ MOHAMMAD ARIFUR , ISLAM MOHAMMAD AHSANUL , IDRIS MOHD HANAFI , BHUIYAN MD KHURSHID ALAM , CHOWDHURY MOHAMMAD MAMUN , ABUALREESH MUYASSAR H. , ABU HENA MUSTAFA KAMAL
Published: June 2023

Mangroves in wetland ecosystems are diverse and play significant role in the adjacent communities on which they are dependent for their livelihoods. It is also important for fishery resources and nutrient inputs in marine and brackish water ecosystems. However, little is known about the tropical wetland lagoon ecosystems, particularly mangrove diversity and assemblages. Therefore, this present study was initiated to observe the mangrove species diversity and assemblages together with the conservation status in an important tropical wetland ecosystem in Setiu, Terengganu, Malaysia. In a variety of landward and small fringe island areas, three zones of square plots were selected (zones 1, 2 and 3) to address the objectives of this study. As a result, a total of 20 true mangrove species belonging to 11 genera from nine families were documented, of which,  Avicennia rumphiana was listed as vulnerable (VU) by the IUCN. Twelve species of mangrove associates from 11 genera and nine families were also found in the investigated zones at Setiu. One of the mangrove associates, Intsia bijuga, was designated as vulnerable (VU) by the IUCN. The Shannon diversity index (H') of mangroves was found to be 1.08 at Setiu Wetland. Rhizophora mucronata was found to be well-expanded (H' = 1.05) followed by A. rumphiana, A. officinalis, Heritiera littoralis, A. corniculatum. Excoecaria agallocha, Lumnitzera racemosa, and A. ebracteatus (H' = 0.0) as the lowest. The findings of the present study revealed that mangroves in the Setiu Wetland are diverse and healthy compared to other mangrove ecosystems in the region. To maintain the health and function of the mangrove ecosystem in Setiu Wetland, proper monitoring is required.
Morphometric Analysis of Sexual Dimorphism in Penthicodes farinosus (Weber, 1801) (Hemiptera: Fulgoridae) from Sarawak
Authors: AHMAD IRFAN ABDUL RAZAK  , SITI NURLYDIA SAZALI  , RATNAWATI HAZALI  , FARAH NABILLAH ABU HASAN AIDIL FITRI  , ISAAC STIA MARCELLINUS
Published: June 2023

The Penthicodes farinosus are strikingly coloured insects and can be found in India, Myanmar, Peninsular Malaysia, Java, Sumatra, Sulawesi, the Philippines, and Borneo. Despite their wide distributional range in Asia with a common occurrence in Borneo, morphometric investigation of P. farinosus is still lacking. The study is aimed to investigate the morphological variations of this species between two different sexes in Sarawak, Malaysian Borneo. Eleven morphometric characters were measured from 183 specimens (69 males and 114 females). The data were analysed using an independent t-test, Principal Component Analysis (PCA) and Discriminant Function Analysis (DFA). Sexual dimorphism index (SDI) was found ranging from 0.044 (LV) to 0.1008 (BTg) indicating females were larger than males. In PCA, cumulative variations of 59.9% were recorded from two principal components, showing higher loadings in the length of tegmen (LTg) and total length (TL). DFA revealed a single function that explains a canonical correlation of 0.895 with 100% variation. The Wilks’ Lambda values of 0.199 were highly supported with p<0.0001. The highest loadings for the model are LTg and TL. The two variables were further tested using Leave-One-Out Cross Validation (LOOVC) method which resulted in 97.2% cases being correctly classified as male or female. This suggests LTg and TL can be useful in separating both sexes of P. farinosus.
PENGARUH PERSEKITARAN BAHASA TERHADAP PENGUASAAN KOSA KATA ARAB PELAJAR
Authors: Abdul Rahman Khairulaizam , Baharudin Harun
Published: June 2023

Faktor persekitaran berupaya menatijahkan peningkatan pencapaian pelajar dalam memahami isi pembelajaran serta dapat meningkatkan tahap penguasaan kosa kata.  Kajian ini bertujuan melihat pengaruh persekitaran bahasa terhadap penguasaan kosa kata Arab dalam kalangan pelajar Sekolah Agama Menengah (SAM) di Selangor. Kajian ini dikendalikan dalam bentuk kaedah tinjauan melibatkan 23 buah SAM dengan sampel seramai 335 orang daripada populasi seramai 2,653 orang pelajar. Analisis inferens digunakan untuk menganalisis data melibatkan ujian Korelasi Pearson dan Regresi Linear Berganda. Hasil dapatan menunjukkan bahawa persekitaran bahasa Arab (dimensi kesepaduan pelajar, penglibatan pelajar dan sikap pelajar berorientasikan tugasan) secara signifikannya memberi sumbangan terhadap penguasaan kosa kata Arab pelajar, dengan peratus varian sebanyak 31%.  Dalam hal ini, dimensi kesepaduan pelajar merupakan penyumbang terbesar, iaitu sebanyak 8.57%. Kajian ini menunjukkan bahawa pembentukan ruang persekitaran pembelajaran perlu diperkasa melalui interaksi aktif sesama pelajar dan menambah baik sokongan guru supaya kestabilan ruang persekitaran pembelajaran bahasa dapat dibentuk.
Knowledge, Attitude and Self-efficacy Towards Blood Donation Among University Students: An Online Intervention Study
Authors: Md Mizanur Rahman  , JAMILAH BINTI HASIM
Published: June 2023

Long-term shortages in the blood supply perpetuate increased morbidity and mortality from treatable diseases. However, how much people are motivated to donate blood was less studied, especially among university students. This study aimed to determine the effectiveness of online intervention for knowledge, attitude, and self-efficacy towards blood donation among undergraduate university students. A pre-and post-test study was conducted among undergraduate students. Four hundred students were invited to the study. Knowledge, positive and negative attitudes, and self-efficacy towards blood donation were measured using a structured questionnaire. Two digital infographics for blood donation and one 10-minute video were used as intervention materials. Following the intervention,  statistical and practical significance was reported. Multivariate analysis was done to determine the differences in invention effect across age, gender, and study discipline. Following the intervention, 29.1% and 5.1% increased knowledge and self-efficacy from the base, respectively. The positive attitude towards blood donation increased by 2.8%, while the negative attitude decreased by 2.1%. Multivariate analysis of variance showed that online health education on blood donation is effective irrespective of age, gender, and discipline of study. Due to the Covid-19 pandemic, the intervention was integrated into a remote health intervention model based on the internet or mobile communication network. This study has provided a scientific conclusion on whether the intervention could motivate people to donate blood.
Motivasi dan Penggunaan Facebook, Instagram, Twitter dan TikTok dalam Kalangan Pelajar Universiti Malaysia Sarawak (UNIMAS)
Authors: Hussin Siti Haslina , Abu Bakar Nur Hazwani
Published: June 2023

Kajian ini bertujuan untuk mengenalpasti motivasi dan penggunaan masa penggunaan Facebook, Instagram, Twitter dan TikTok dalam kalangan pelajar universiti di Malaysia. Data untuk kajian deskriptif diperoleh daripada 100 orang pelajar yang mengisi borang soalselidik secara atas talian. Dapatan kajian menunjukkan responden memilih Tiktok sebagai platform yang paling utama digunakan. Namun, Twitter adalah platform yang paling memenuhi motivasi pelajar menggunakan media sosial. Motivasi pelajar untuk menggunakan media sosial ialah dokumentasi kendiri dan ekspresi kendiri adalah tertinggi. Pengaruh daripada pertambahan jumlah pengikut mendorong pengguna untuk mendedahkan dan berkongsi tentang diri mereka kepada pengguna lain. Tidak ramai pelajar dimotivasi oleh konstruk hiburan dan kemudahan untuk menggunakan media sosial. Terdapat perbezaan ketara dalam penggunaan media sosial antara pelajar lelaki dan perempuan. Pelajar lelaki lebih gemar menggunakan Instagram berbanding pelajar perempuan yang lebih mengutamakan penggunaan Facebook dan Tiktok. Kebanyakan pelajar menggunakan media sosial melebihi lima jam sehari.  Implikasi kajian ini menunjukkan bahawa ciri Twitter sebagai microblog boleh digunakan di dalam proses pembelajaran. Pertambahan responden dari pelbagai institusi dan pertambahan media sosial untuk dikaji dicadangkan untuk kajian masa akan datang.
Garden Plus +
Authors: Wong Jun Xiang
Published: June 2023

Given how close the school is to the site, it gives one the idea of designing a playful space for the youth.  With children as the target user, the modular structure needs to have multiple functions while bringing liveliness to the garden.  Mini gardens promote gardening skills while the rock garden is enhanced.  Music promotes interest and interactive plays.  Picnics promote gatherings. The passage promotes views and perhaps photographic activities.
Husserl Sonrası Fenomenolojinin Politik Dönemeci: Patočka ve Arendt’te İnsan Sorunu
Authors: YAMAN Merve Nur
Published: June 2023

20. yüzyılın felsefe alanındaki en önemli akımlarından olan fenomenoloji, kurucusu olan Husserl’den sonraki dönemlerde etik ve politika gibi alanlara genişlemiştir. Bu genişlemede ve kendisinden sonraki dönemin ilgileri üzerinde Husserl’in son dönem eserlerinden olan Avrupa Bilimlerinin Krizi ve Transandantal Fenomenoloji (Die Krisis der europäischen Wissenschaften und die transzendentale Phänomenologie) kitabının ise özel bir etkisi vardır. Politika üzerine düşünce üreten ve yazan iki büyük düşünür, Hannah Arendt ve Jan Patočka, Husserl fenomenolojisinin kavramları ve sağladığı imkanlar yoluyla politika ve insan sorunu meselesine yönelirler. Bu doğrultuda Husserl’in “özneler-arasılık”, “yaşam dünyası” ve “öznelliğin keşfi” vb. temel temalarını politika alanı içinde yeniden yorumlarlar. Dolayısıyla Arendt ve Patočka’nın Husserl fenomenolojisinin politik dönemecini ifade ettikleri söylenebilir. Çalışmamızda bu dönemecin iki önemli ismi olan Arendt ve Patočka’nın, insan meselesini politika bağlamında nasıl ele aldıklarını göstermeye çalışacağız.
Hedonic and Utilitarian Motivation of Accounting Students as Z Generation in Using Mobile Banking
Authors: Mulya Oktaria , Yuhertiana Indrawati
Published: June 2023

The purpose of this study to investigate examine the influence hedonic & utilitarian motivation to financial management when using mobile banking. This study used a quantitative research methodology Multiple linear regression analysis was performed in this study's data analysis along with SPSS 26. The proportionate stratified random was employed in the sample determination approach together with probability sampling 98 students made up the study's sample. Both primary and secondary data are used in this investigation. The study's findings demonstrate that hedonic motivation and utilitarian motivation both have a good impact on financial management. the finding that hedonic drive definitely has an impact on financial management. And it has been demonstrated that utilitarian motive affects money management.
Late in Inka Mina Ship Procurement: A Case of North Celebes, Indonesia
Authors: Bastian Indra , Petrus Kaihatu
Published: June 2023

The Ministry of Maritime Affairs and Fisheries (KKP) launched a program to procure 1,000 fishing vessels sized 30 GT, known as Inka (ships) Mina (fish) to increase fishermen's income and welfare. The KKP program was considered not running optimally. This was evidenced by many cases of procurement of troubled fishing vessels involving the Department of Maritime Affairs and Fisheries (DKP) in several regions in Indonesia. One area that experienced problems related to the procurement of fishing vessels were the DKP of North Sulawesi Province, which was the object of this study. The problem that faced was the delay in shipbuilding. Therefore, this study aimed to identify and analyze the roots of ship procurement problems by looking at the suitability of the ship procurement process in North Sulawesi Province DKP with Presidential Regulation No. 54 of 2010 and the causes of delays in shipbuilding.
This study used a case study approach with an exploratory type. Data collection was done through documentation, open-ended interviews, and direct observation. The selection of participants used purposive sampling technique. Data analysis techniques were carried out by data reduction, data presentation, and conclusion drawing.
The results of the study showed the process of procuring ships in DKP Prov. North Sulawesi, started from the preparation, implementation, signed until the execution of the contract, ran in accordance with Presidential Regulation No. 54 of 2010. The delay in shipbuilding was occurred to the provider. The causes of the delay were; lack of company experience which has an impact on the lack of experts; late delivery of raw materials; and natural conditions, which is high rainfall. As a result of delayed in shipbuilding, there were several findings that is incompatibility of handover dates and sea trial on the official document with the date of the photos taken and the sea trial taken, discrepancies in ship size, incompatibility in the calculation of late fines, and the role ambiguity in the Acting Official Technical Activities (PPTK).
Exploration of gender dynamics in the production and marketing of forage technologies in Kenya
Authors: Njiru Nelly , Galiè Alessandra , Wanyoike Francis , Tawanda Mashonganyika , Boonabaana Brenda , Bisikwa Jenipher , Njuguna-Mungai Esther , Jones Chris S. , Baltenweck Isabelle
Published: June 2023

Inadequate and poor-quality feed resources are a key constraining factor in livestock production that compromises the livelihoods of many women and men dependent on livestock, who can be found in most low- and middle-income countries (LMICs). Several forage varieties have been developed, which are targeted to smallholder farmers in developing countries, yet the level of adoption remains low, particularly among women farmers. Adoption of varieties could enhance livelihoods by increasing livestock productivity and also by providing an income from the sale of surplus forage. However, evidence on gendered barriers to and incentives for the adoption of forage varieties is scarce. This study explores the gender dynamics influencing the uptake and commercialization of a forage variety,Brachiaria(syn.Urochloa), among women and men farmers in four subcounties in Kenya. Through a mixed-methods approach, 260 individuals (59 women and 201 men) belonging to a household where at least one individual is a member of a dairy cooperative were interviewed. Complementary data from qualitative interviews engaging 16 single-sex focus group discussions (FGDs) and 8 key informant interviews (KIIs) were collected. Results reveal thatBrachiariais accessible to both women and men. Dairy cooperatives are important means for women and men to access extension services, useful information, and planting materials, but only a few women are cooperative members. Men face constraints owing to small land areas, rather than the ownership and access problems that constrain women. These challenges privilege men asde factoowners of resources while subordinating women and disenfranchising them in terms of adopting this technology. Complex yet important pathways for women’s and men’s empowerment exist through the sale of planting materials, hay bales, and an increased volume of milk obtained when cows are fed withBrachiaria. We conclude that cooperative membership for men should be supported, while at the same time gender norms that reduce women’s engagement with cooperatives, and their access to and control over land, should be challenged.
Development of a native-locus dual reporter system for the efficient screening of the hyper-production of natural products in Streptomyces
Authors: Zhou Jing-Yi , Ma Bin-Bin , Zhao Qing-Wei , Mao Xu-Ming
Published: June 2023

Streptomyces is renowned for its abundant production of bioactive secondary metabolites, but most of these natural products are produced in low yields. Traditional rational network refactoring is highly dependent on the comprehensive understanding of regulatory mechanisms and multiple manipulations of genome editing. Though random mutagenesis is fairly straightforward, it lacks a general and effective strategy for high throughput screening of the desired strains. Here in an antibiotic daptomycin producer S. roseosporus, we developed a dual-reporter system at the native locus of the daptomycin gene cluster. After elimination of three enzymes that potentially produce pigments by genome editing, a gene idgS encoding the indigoidine synthetase and a kanamycin resistant gene neo were integrated before and after the non-ribosomal peptidyl synthetase genes for daptomycin biosynthesis, respectively. After condition optimization of UV-induced mutagenesis, strains with hyper-resistance to kanamycin along with over-production of indigoidine were efficiently obtained after one round of mutagenesis and target screening based on the dual selection of the reporter system. Four mutant strains showed increased production of daptomycin from 1.4 to 6.4 folds, and significantly improved expression of the gene cluster. Our native-locus dual reporter system is efficient for targeting screening after random mutagenesis and would be widely applicable for the effective engineering of Streptomyces species and hyper-production of these invaluable natural products for pharmaceutical development.
Mesenchymal stem cell-derived exosomes: a possible therapeutic strategy for repairing heart injuries
Authors: Zhu Zeshu , Zhu Ping , Fan Xiongwei , Mo Xiaoyang , Wu Xiushan
Published: June 2023

Mesenchymal stem cells (MSCs) are one of the most potent therapeutic strategies for repairing cardiac injury. It has been shown in the latest studies that MSCs cannot survive in the heart for a long time. Consequently, the exosomes secreted by MSCs may dominate the repair of heart injury and promote the restoration of cardiac cells, vascular proliferation, immune regulation, etc. Based on the current research, the progress of the acting mechanism, application prospects and challenges of exosomes, including non-coding RNA, in repairing cardiac injuries are summarised in this article.
Activin receptor-like kinase 3: a critical modulator of development and function of mineralized tissues
Authors: Ruan Xianchun , Zhang Zhaowei , Aili Munire , Luo Xiang , Wei Qiang , Zhang Demao , Bai Mingru
Published: June 2023

Mineralized tissues, such as teeth and bones, pose significant challenges for repair due to their hardness, low permeability, and limited blood flow compared to soft tissues. Bone morphogenetic proteins (BMPs) have been identified as playing a crucial role in mineralized tissue formation and repair. However, the application of large amounts of exogenous BMPs may cause side effects such as inflammation. Therefore, it is necessary to identify a more precise molecular target downstream of the ligands. Activin receptor-like kinase 3 (ALK3), a key transmembrane receptor, serves as a vital gateway for the transmission of BMP signals, triggering cellular responses. Recent research has yielded new insights into the regulatory roles of ALK3 in mineralized tissues. Experimental knockout or mutation of ALK3 has been shown to result in skeletal dysmorphisms and failure of tooth formation, eruption, and orthodontic tooth movement. This review summarizes the roles of ALK3 in mineralized tissue regulation and elucidates how ALK3-mediated signaling influences the physiology and pathology of teeth and bones. Additionally, this review provides a reference for recommended basic research and potential future treatment strategies for the repair and regeneration of mineralized tissues.
Streamflow and flood prediction in Rwanda using machine learning and remote sensing in support of rural first-mile transport connectivity
Authors: Macharia Denis , Mugabo Lambert , Kasiti Felix , Noriega Abbie , MacDonald Laura , Thomas Evan
Published: June 2023

Flooding, an increasing risk in Rwanda, tends to isolate and restrict the mobility of rural communities. In this work, we developed a streamflow model to determine whether floods and rainfall anomalies explain variations in rural trail bridge use, as directly measured by in-situ motion-activated digital cameras. Flooding data and river flows upon which our investigation relies are not readily available because most of the rivers that are the focus of this study are ungauged. We developed a streamflow model for these rivers by exploring the performance of process-based and machine learning models. We then selected the best model to estimate streamflow at each bridge site to enable an investigation of the associations between weather events and pedestrian volumes collected from motion-activated cameras. The Gradient Boosting Machine model (GBM) had the highest skill with a Kling-Gupta Efficiency (KGE) score of 0.79 followed by the Random Forest model (RFM) and the Generalized Linear Model (GLM) with KGE scores of 0.73 and 0.66, respectively. The physically-based Variable Infiltration Capacity model (VIC) had a KGE score of 0.07. At the 50% flow exceedance threshold, the GBM model predicted 90% of flood events reported between 2013 and 2022. We found moderate to strong positive correlations between total monthly crossings and the total number of flood events at four of the seven bridge sites (r = 0.36–0.84), and moderate negative correlations at the remaining bridge sites (r = -0.33– -0.53). Correlation with monthly rainfall was generally moderate to high with one bridge site showing no correlation and the rest having correlations ranging between 0.15–0.76. These results reveal an association between weather events and mobility and support the scaling up of the trail bridge program to mitigate flood risks. The paper concludes with recommendations for the improvement of streamflow and flood prediction in Rwanda in support of community-based flood early warning systems connected to trail bridges.
Lifetime breeding-site and nest-site fidelity in a declining terrestrial toadlet: evidence for a win-stay/lose-shift strategy
Authors: Byrne Phillip G. , Silla Aimee J.
Published: June 2023

Introduction

Breeding-site fidelity can occur at various spatial scales and can vary in strength across these scales. Understanding this variation, and rules governing individual site-fidelity decisions, can have important implications for the conservation and management of threatened species. Globally, amphibians are in rapid decline and breeding-site fidelity appears to be widespread, yet few studies have investigated patterns of lifetime breeding-site fidelity, and no studies have explored decision-making rules in situ.

Methods

We investigated lifetime patterns of breeding site fidelity in the brown toadlet Pseudophryne bibronii, a species displaying population declines and local extinction throughout its range. We monitored a single population for a period spanning 10 years to establish the extent that males express site fidelity at the scale of the breeding site and the breeding patch. We also examined male nest-site fidelity between breeding years in relation to mating success to examine if toadlets follow a Win-stay/Lose shift strategy.

Results

Overall, we found that males displayed extreme lifetime fidelity to specific breeding patches within the breeding site, but that males regularly moved nest-site locations between breeding years. The degree of nest-site fidelity was related to male-mating success, whereby successful males established nests closer to a previous years’ nest location than unsuccessful males.

Discussion

Our findings suggest that brown toadlets display extreme site fidelity at the scale of the breeding patch, but that within patches male nesting decisions are flexible and follow a win-stay/lose-shift strategy. These results provide novel evidence that breeding site fidelity in amphibians can vary depending on spatial scale (indicative of scale-dependent information use) and that a rule-based learning strategy can influence the degree of nest-site fidelity. Breeding patch fidelity and capacity for spatial learning may be widespread in long-lived amphibians and necessitate in situ conservation strategies that protect known breeding patches (and adjacent habitat) whilst enabling unconstrained localised movement.
Timing of heart failure development and clinical outcomes in patients with acute myocardial infarction
Authors: Kim Hyung Yoon , Kim Kye Hun , Lee Nuri , Park Hyukjin , Cho Jae Yeong , Yoon Hyun Ju , Ahn Youngkeun , Jeong Myung Ho , Cho Jeong Gwan
Published: June 2023

Background and objectives

To investigate the clinical relevance of the timing of heart failure (HF) development on long-term outcome in patients with acute myocardial infarction (AMI).

Materials and methods

A total of 1,925 consecutive AMI patients were divided into 4 groups according to the timing of HF development; HF at admission (group I, n = 627), de novo HF during hospitalization (group II, n = 162), de novo HF after discharge (group III, n = 98), no HF (group IV, n = 1,038). Major adverse cardiac events (MACE) defined as the development of death, re-hospitalization, recurrent MI or revascularization were evaluated.

Results

HF was developed in 887 patients (46.1%) after an index AMI. HF was most common at the time of admission for AMI, but the development of de novo HF during hospitalization or after discharge was not uncommon. MACE was developed in 619 out of 1,925 AMI patients (31.7%). MACE was highest in group I, lowest in group IV, and significantly different among groups; 275 out of 627 patients (43.9%) in group I, 64 out of 192 patients (39.5%) in group II, 36 out of 98 patients (36.7%) in group III, and 235 out of 1,038 patients (22.6%) in group IV (P < 0.001). MACE free survival rates at 3 years were 56% in group I, 62% in group II, 64% in group III, and 77% in group IV (P < 0.001).

Conclusions

HF was not uncommon and can develop at any time after an index AMI, and the development of HF was associated with poor prognosis. The earlier the HF has occurred after AMI, the poorer the clinical outcome was. To initiate the guideline directed optimal medical therapy, therefore, the development of HF should be carefully monitored even after the discharge from an index AMI.