bluuebunny/crossref_metadata_2025 huggingface dataset:
Strategy Plan and Policy Model of Public Transport in Saudi Arabia
Authors: Abdulaal Jamal Eid , Alanazi Bader , Taki Herika Muhamad
Published: May 2023

GDP of Saudi Arabia has increased from $ 1 billion US dollar in 1972 to more than $300 billion US dollar in 2011. The increase in population from 10 million in 1950 to 28 million in 2010, urbanization represent about 80%. the country consume about 20-25% of it's own oil production about 2.5 million per/daily. This shows that the Saudi policy have given incentive to cars user for longtime and has done little to manage demand or support public transport. The main objective of this paper is place the Saudi model in public transport in the international context and to draw an international prospective of public transport policy and the rational of government intervention in transport sector. The study gives classification models which characterize the industries and form of intervention. Further more the study highlight some of the approaches which adopted by both developed and developing industry at specific time.

The Methods and models use vary from one country and this study had classified intervention in transport sector in five models which are such as models of ownership, regulation, competition, finance system and private public partnership model. In 2011 Saudi Arabia has introduce it First National Transport Strategy, which have adopted many objectives among the most is, to improve efficiency of transport sector, module environmental impact of transport sector, improves safety facilitate the movement of peoples and goods to improve economic activity (MOT 2011). This state shows that no clear objectives to improve public transport policy.
Stockpile Volume Estimation Calculation Based on Terrestrial Laser Scanner (TLS) Data Acquisition and 3D Surface Visualization
Authors: Mabrur Adkha Yulianandha , Arafah Feny , Sulistianto Adi
Published: May 2023

Stock taking is a series of activities to calculate the stock of goods that are still stored in the warehouse to be marketed. There are many activities covered in it, ranging from calculating the number of goods, conducting direct inspections, and structuring that will facilitate business operations when a certain product is needed. One of these activities is also carried out in the mining sector. Coal stock-taking is a survey activity carried out in the coal yard area to calculate the volume of the stockpile and coal tonnage after being multiplied by the density value. Large-dimensional coal stocking must be carried out quickly, accurately and in detail. The need for this can be obtained using laser scanner technology. Laser scanner is a tool designed to scan the surface of an object and represent it in 3D in the form of a height density point cloud. Based on this, in carrying out stock-taking calculation activities, measurements are needed which mainly aim to find out the stockpile volume and density in the fourth quarter of the Adipala PLTU Coal Yard. Stockpile measurement method using volumetric method. Measurement using a Laser Scanner tool to obtain the shape of the stockpile area is by seizing the entire surface of the Stockpile by setting the resolution of the density of coordinate points (x, y, z) as needed. Tool displacement when measurements are made on every detail of the Stockpile curve. Based on the calculation results, it is known that the volume value of the coal stockpile on the west side coal yard is 121,420,574 m3 and the east side coal yard is 88,230,355 m3 on. The total volume of coal amounted to 209,650,929 m3 then multiplied by the density of the bulk density survey results and obtained the tonnage of 180,384,417 MT.
Identifying Probable Slip Surface in Wanurejo, Borobudur District, By Subsurface Analysis Utilizing the Dipole-Dipole Configuration of Resistivity Method
Authors: Dzakiya Nurul , Laksmana Robertus Belardo , Hidayah Radhitya Adzan
Published: May 2023

Research has been carried out on the existence of slip surfaces in Wanurejo, Borobudur District, Magelang Regency, Central Java. The location of the slip surface is identified using the resistivity method of the dipole-dipole configuration. This research was conducted at a relatively flat measurement location and at an altitude of around 95–105 meters above sea level. Measurements were made on 6 different lines with a length of track 1 of 250 m. The results of data processing indicate that the layer that acts as a slip surface is a layer of clay. The clay layer has a resistivity value ranging from 15 to 35 ohm.m, which is relatively thin, so it has the potential to become a slip surface because it is located between two rocks that have a significant resistivity contrast: compact andesite rock and water-saturated sandstone. If the water-saturated sandstone layer is no longer able to withstand the weight above it, the surrounding andesite rocks will easily slip. This is also reinforced by the presence of a layer of clay that is slippery, so the potential for landslides or slipping is greater.
Utilization of Palm Oil Mill Effluent (POME) Liquid Waste to Increase Density and Growth Rate of Microalgae Chlorella Pyrenoidosa
Authors: Barat Welmar Olfan Basten , Silaen Srinatalia , S Ewin Handoco
Published: May 2023

Microalgae Chlorella pyrenoidosa is a microalgae that has the potential to have various roles, especially as a bioabsorbant for organic waste. The growth of the oil palm plantation industry is also directly proportional to the increase in waste generated from the CPO production process, namely POME Waste (Palm Oil Mill Effluent). POME waste has a high nutrient content so that it can be utilized by the microalgae Chlorella pyrenoidosa. This study aims to utilize POME waste to increase the growth of Chlorella pyrenoidosa. Microalgae cultivation had a significant effect on the 1:2 treatment and 1:3 treatment when compared to the control cultivation medium with the highest cell density values ​​of 263(106cells/ml) and 279(106cells/ml) respectively. Injection of POME waste into microalgae rearing media will have an impact on increasing the growth of Chlorella pyrenoidosa microalgae.
Analisis Manajemen Kontrak Dalam Proyek Beautifikasi Gedung Belakang Dan Penataan Taman KANWIL Kementerian Hukum dan HAM NTB
Authors: Pratiwi Ninda , Sari Dharwati P. , Ariani Indra
Published: May 2023

Dalam industri konstruksi, kontrak yang memiliki aspek hukum tidak hanya mengikat antara kedua pihak tetapi menjadi acuan dan pengendalian atas pekerjaan yang telah disepakati bersama. Dalam manajemen kontrak, ada kegiatan utama yang harus dilakukan, yaitu: penyusunan dan pembuatan kontrak, kontrak sebagai pedoman kerja (TOR), kontrak sebagai 'pengendalian, administrasi kontrak. Dalam Beautifikasi Proyek Pengadaan Pengecatan Gedung Belakang dan Penataan taman pada Kantor wilayah kementerian Hukum dan Ham NTB sudah berjalan sesuai ketentuan dalam Peraturan Presiden Nomor 12 Tahun 2021 tentang Perubahan Atas Peraturan Presiden Nomor 16 Tahun 2018 tentang Pengadaan Barang/Jasa Pemerintah. Tiap tahapan kegiatan dalam proyek konstruksi perlu diatur secara hukum, peran dan tanggung jawab PPK dalam sebuah proyek pengadaan barang/jasa pemerintah sangatlah krusial baik dari tahapan perencanaan hingga serah terima hasil pekerjaan. Namun tidak dapat dipungkuri masih terdapat kelemahan pada peraturan tersebut ketika pengadaan barang/jasa yang pengerjaannya sederhana tidak dianggarkan untuk pembuatan spesifikasi teknis dimana seorang PPK tidak kompeten pada bidangnya.
Сollection of melon crops: identification of homologous series in hereditary variability
Authors: Tekhanovich G. A. , Elatskova A. G.
Published: May 2023

The law of homologous series in variation has important significance for disclosing the potential hereditary variability in plants. The use of the law in studies of cucurbit cropcollections, hybrid populations, mutants, and breeding lines made it possible to discover valuable and previously unknown forms of watermelon, muskmelon and different squash species for their use in practical breeding. For example, these are bushy and short vine forms for breeding cultivars suitable for mechanized cultivation. This work resulted in creating cultivars of bushy watermelon ‘Svaytoslav’, short vine watermelon ‘Podarok Solntsa’, bushy Cucurbita pepo L. ‘Kustovaya oranzhevaya’ and Cucurbita maxima Duch. ‘Kustovaya Zolotaya’, ‘Malyshka’, and ‘Matrieschka’, short vine Cucurbita maxima Duch. ‘Lechebnaya’ and Cucurbita moschata Duch. ex Poir ‘Mariya’, and also of a short vine muskmelon ‘Stanislava’. The mentioned cultivars have been included in the State Register of Selection Achievements. Watermelon genetic marker lines with the nonlobed (entire) leaf (TsL), namely TsL 656, TsL 662, TsL 784, TsL 752, have been identified and used for crerating entire leaf cultivars ‘Blagodatnyi’, ‘Lubimchik’, and ‘Krasavchik’. A watermelon cultivar ‘Surpriz’ with high quality, delicately colored bright yellow flesh, and cultivar ‘Solyaris’ with fruits combining yellow color of rind with yellow flesh, have been created for cultivation by amateur gardeners. Of interest is an ornamental form of watermelon with yellow-green mosaic leaf and bright yellow fruits (the yellowgreen bushy line) ZhZKL 870, as well as the yellow-green muskmelon line ZhZL 487 and yellow-green pumpkin (Cucurbita maxima) line ZhZL 692. Bushy lines KL 648, KL 652 and short vine KPL 648, KPL 652 of pumpkin (Cucurbita moschata) have been created. Improved female lines (ZhL) of muskmelon (ZhL 415, ZhL 421, ZhL 423, and ZhL 427) have been identified for heterosis breeding. It follows from the above that the law in question found practical application in breeding cucurbit crops.
Pavel Alexandrovich Baranov. A life for science and the motherland
Authors: Dorofeyev V. I. , Krupkina L. I.
Published: May 2023

The year 2022 marks the 130th anniversary of the birth and the 60th anniversary of the death of one of the most remarkable directors of a large number of botanical scientific institutions, Pavel Aleksandrovich Baranov. His life was devoted to the creation and development of the Central Asian State University (SAGU), the Botanical Institute of SAGU, the Pamir Biological Station and the Pamir Botanical Garden in Khorog, the Main Botanical Garden of the USSR Academy of Sciences, the Central Asian Branch of the All-Union Institute of Plant Industry, etc. He has been a passionate fighter against Lysenkoism and propagandized advances in genetics.
Nomenclatural types of cultivated barleys described by R. E. Regel and conserved in the VIR Herbarium
Authors: Chukhina I. G. , Sukhanova O. V. , Lukina K. A. , Kovaleva O. N.
Published: May 2023

Robert E. Regel was the first to comprehensively analyze the diversity of cultivated barley in Russia and identify more than fifty new subvarieties. Some of them he published in two articles: «Barleys with smooth awns» (1908) and «The most important varieties and races of barleys in Russia» (1910). The present study was carried out because no one has yet conducted a search for authentic herbarium specimens and lectotypified the Hordeum taxa described by R.E. Regel. We have found that the main collection of the Herbarium of cultivated plants of the world, their wild relatives and weeds (WIR) contains the authentic herbarium specimens of nine barley taxa described by R.E. Regel, namely Hordeum distichon var. erectum subvar. anglicum R. Regel, H. distichon var. nigricans subvar. vilmorenianum R. Regel, H. distichon var. nutans subvar. europeicum R. Regel, H. distichon var. nutans subvar. turkestanicum R. Regel, H. distichon var. nutans subvar. сolchicum R. Regel, H. vulgare var. nigrum subvar. taganrocense R. Regel, H. vulgare var. pallidum. subvar. Lapponicum R. Regel, H. vulgare var. pallidum subvar. praecox R. Regel, and H. vulgare var. ricotense subvar. kiarchanum R. Regel. Since the available herbarium sheets contain later reproductions of the collection specimens cited in the protolog, these herbarium specimens were chosen by us as neotypes.
Síndrome de Rapunzel asociado a perforación intestinal. Caso clínico
Authors: Jiménez-Lafourie Ivette , Ruiz-Gutiérrez Sebastián , Peralta John , Rincón-Barbosa Óscar , Herrera-Quiroz Laura Valentina , Pinzón-Molina María Camila
Published: May 2023

Introducción. Los tricobezoares ocurren de forma frecuente en niñas y adolescentes, y se asocian a trastornos psicológicos como depresión, tricotilomanía o tricofagia.
Caso clínico. Se presenta una paciente adolescente con síndrome de Rapunzel, con hallazgo adicional de perforación yeyunal debido al tricobezoar.
Discusión. Dentro de las complicaciones de los tricobezoares se reporta invaginación intestinal (principalmente de yeyuno), apendicitis, obstrucción biliar, neumonía, pancreatitis secundaria y perforación, esta última como ocurrió en nuestra paciente.
Conclusión. En pacientes mujeres adolescentes con dolor abdominal o abdomen agudo, se debe tener en cuenta el diagnóstico de síndrome de Rapunzel, así como sus probables complicaciones.
Makna Pasal 18 Ayat (4) Undang-Undang Dasar Negara Republik Indonesia Tahun 1945
Authors: Hadi Syofyan
Published: May 2023

Abstract

The purpose of this study is to find the meaning of Article 18 Paragraf 4 of the 1945 Constitution of the Republic of Indonesia. This research is legal research with a statutory, conceptual, and case approach. The results of this study found that Article 18 Paragraf 4 of the 1945 Constitution of the Republic of Indonesia was formulated flexibly with open texture and opened legal policy. Using the original intent of grammatical interpretation, it was found that 7 (seven) meanings of Article 18 Paragraf 4 of the 1945 Constitution of the Republic of Indonesia were 1) the regional head was the chief of local government, (2) Regional heads must exist and the number is 1 (one) person, (3) the deputy of regional head was not mandatory. If there can be 1 (one) or more people, (4) the regional head must be democratically elected, either directly by the people or by the local representative body, (5) the regional head candidate does not have to be submitted by a political party or a combination of political parties so that it can be an individual candidate, (6) the elected regional head is sufficient to obtain a simple majority of votes, and (7) the deputy of regional head is not obliged to be democratically elected,  It is not mandatory to be selected in 1 (one) package of candidate pairs with the regional head, and can be appointed.

Keywords: democratic; election; regional head

Abstrak

Tujuan penelitian ini adalah untuk menemukan makna Pasal 18 ayat (4) UUD NRI 1945. Penelitian ini adalah penelitian hukum dengan pendekatan perundang-undangan, konseptual, dan kasus. Hasil penelitian ini menemukan bahwa Pasal 18 ayat (4) UUD NRI 1945 dirumuskan secara fleksibel dengan sifat open texture dan opened legal policy. Dengan menggunakan penafsiran original intent gramtikal, ditemukan 7 (tujuh) makna Pasal 18 ayat (4) UUD NRI 1945 yakni 1) kepala daerah merupakan chief of local government, (2) kepala daerah wajib ada dan jumlahnya 1 (satu) orang, (3) wakil kepala daerah tidak wajib ada. Jika ada boleh 1 (satu) orang atau lebih, (4) kepala daerah wajib dipilih secara demokratis, baik secara langsung atau oleh DPRD, (5) calon kepala daerah tidak harus diajukan oleh partai politik atau gabungan partai politik sehingga boleh calon perseorangan, (6) kepala daerah terpilih cukup memperoleh simple majority suara, dan (7) wakil kepala daerah tidak wajib dipilih secara demokratis, tidak wajib dipilih dalam 1 (satu) paket pasangan calon dengan kepala daerah, dan dapat ditunjuk.

Kata kunci: demokratis; kepala daerah; pemilihan
Perlindungan Hukum Pemegang Tanah Bekas Milik Adat Perorangan
Authors: Yulianto Muchammad , Pihawiani Elsy
Published: May 2023

The purpose of this study is to analyze how the form of legal protection is given to holders of former customary land after the entry into force of Article 96 PP. 18 of 2021 concerning Management Rights, Land Rights, Flat Units, and Land Registration (hereinafter referred to as PP. No. 18/2021), wherein the provisions of Article 96 it is explained that written evidence of land formerly owned by custom (Petuk Tax Earth/Landrente, girik, pipil. Ketitir and Indonesian verponding) which are owned by individuals must be registered within 5 (five) years since the provisions of the Government Regulations are passed and in the event that the 5 (five) years period expires, written evidence of land formerly owned by custom is declared invalid and cannot be used as a means of proving the registration of land rights. The type of research used is normative legal research using statutory and conceptual approaches. Through this research, researchers offer preventive legal protections for holders of former customary land with a rights recognitions mechanism, in which the mechanism for recognizing this right is carried out by the applicant/owner of the former customary land by making a statement of physical ownership of the former customary land, made with at least 2 (two) witnesses, where later the statement letter was used as the basis for land registrations, as well as researchers offering repressive legal protection to former customary landholder by conducting a judicial review to on the PP. No. 18/2021.
Legalitas Hak Komunal Atas Kelestarian Hutan Adat di Wilayah Ibu Kota Nusantara
Authors: Novitasari Indah Anggraini , Gandryani Farina , Hadi Fikri
Published: May 2023

The purpose of this research is to see the influence of the legality of indigenous forests in the Capital City area, after being designated as indigenous forests by the government, on their sustainability and the factors that influence their sustainability and damage. The 1945 Constitution of The Republic of Indonesia gave responsibility to the state to manage land, water, and natural resources in Indonesia to provide maximum benefits for the people. This is explicitly stated in The Constitution and refers to the existence of Indonesian agrarian reform. Law No. 3/2022 regulated special provisions regarding land acquisition for a public purpose in the construction of the new capital city called Nusantara. The relocation of the State Capital of Indonesia has an impact on all aspects of the life of indigenous peoples in the Capital City area, especially in the land sector. This is normative legal research using statute and conceptual approaches. Some of the factors affecting public awareness of indigenous forest protection include the fact that forests have many benefits for the survival of indigenous peoples socially, religiously, economically, and culturally. Therefore, the legal protection that indigenous peoples need, such as upholding customary rights and unique life norms in the capital city's community, agreeing on zoning regulations that do not damage local cultural values ​​and eliminate public interest in the development of the State Capital, and implementing a land registration program for people who undocumented.
Citra Diri Virtual pada Pengguna Instagram (Studi Dramaturgi pada Mahasiswa Ilmu Komunikasi Untag Surabaya)
Authors: Satyanandani Ketut Anindita , Palupi Merry Fridha Tri , Romadhan Mohammad Insan
Published: May 2023

Citra diri menjadi hal yang kerap dibentuk oleh setiap individu secara sada ataupun tidak sadar. Majunya teknologi, tidak membuat pembentukan citra diri terjadi pada kehidupan nyata atau sehari-hari saja. Dari sekian banyak platform atau aplikasi online yang tengah naik daun, instagram menjadi pilihan peneliti. Penelitian ini bertujuan untuk mengetahui dan memahami bagaimana subjek penelitian memaknai citra diri virtual yang mereka bentuk pada laman instagramnya. Subjek penelitian pada penelitian ini ialah mahasiswa ilmu komunikasi Universitas17 Agustus 1945. Metodologi yang digunakan dalam penelitian ini ialah metode kualitatif dengan fenomonenologi sebagai grand theory serta teoridramaturgi guna menggali lebih dalam bagaimana subjek penelitian memaknai citra diri virtual yang mereka bentuk di media sosial instagram.Hasil yang didapatkan pada penelitian ini ialah front stage yang menjadi tempat subjek penelitian membangun citra dirinya sebaik mungkin dan back stage tempat subjek penelitian menjadi dirinya sendiri tanpa harus menggunakan topeng. serta ditemukannya middle stage yang dialami subjek penelitian ketika membentuk citra diri virtualnya. Subjek penelitianmemaknai citra diri virtual sebagai versi dirinya secara online yang dapat dibentuk sesuai dengan keinginannya serta menjadikan Instagram dan citra diri virtual sebagai wadah untuk membentuk portofolio dan aktualisasi diriagar dapat membuka peluang baru bagi subjek penelitian.

Kata Kunci : Citra Diri, Virtual, Dramaturgi
Pola Komunikasi Guru Bahasa Inggris Dalam Membentuk Konsep Diri Siswa Melalui English Public Speaking
Authors: Dari Nicky Wulan , Tomoharjo Irmulan Sati
Published: May 2023

Pola Komunikasi Guru Bahasa Inggris dalam Membentuk Konsep Diri melalui English Public Speaking. Studi ini bertujuan untuk menggambarkan pola komunikasi guru Bahasa Inggris dengan siswa dalam membentuk konsep diri melalui English Public Speaking. Dalam pembelajaran Bahasa Inggris, ditemukan siswa yang masih memiliki kosnsep diri yang rendah, belum percaya diri, takut di dalam berbahasa Inggris. Walaupun memiliki nilai yang bagus belum tentu kemampuan berbahasa inggrisnya baik. Penelitian ini bersifat penelitian kualitatif dengan pendekatan metode deskriptif. Hasil penelitian ini didapatkan dari hasil wawancara dari sekolah menengah kejuruan dengan Key Informan dan beberapa informan dari masing-masing sekolah, dimana peneliti menemukan secara umum ada kesamaan jawaban secara mendalam. Pembelajaran English Public Speaking masih dianggap menjadi hal sangat menakutkan bagi siswa dalam berbahasa inggris, sehingga dibutuhkan sebuah pola komunikasi yang baik antara guru dengan siswa dalam proses pembelajaran tersebut sehingga terbangun konsep diri yang tinggi pada siswa. Pentingnya kemampuan English Public Speaking bagi siswa Sekolah Menengah Kejuruan adalah dapat meningkatkan kualitas diri siswa dalam berbahasa inggris dan dapat menunjang karir siswa nanti pada saat di terima lapangan pekerjaan. Dengan adanya pola komunikasi guru yang dapat memberikan penguatan konsep diri terhadap siswa melalui English Public Speaking, siswa dapat termotivasi untuk dapat berbicara Bahasa Inggris.
Brand Awareness pada Sensus Penduduk 2020 Lanjutan
Authors: Pane Muhammad Mulyadi , Dida Susanne , Setianti Yanti
Published: May 2023

Sensus Penduduk 2020 Lanjutan merupakan kegiatan yang diselenggarakan BPS guna menyediakan indikator-indikator penting bagi SDGs dan RPJMN di bidang kependudukan. Partisipasi masyarakat dalam mendukung pelakanaan kegiatan Sensus Penduduk 2020 Lanjutan ini sangat besar artinya. Oleh karena Badan Pusat Statistik mengupayakan publisitas secara maksimal melalui media-media sosial guna mengedukasi masyarakat dan memberikan awareness terhadap pelaksanaan Sensus Penduduk 2020 Lanjutan. Penelitian ini dilakukan guna mengetahui gambaran awareness penduduk Kabupaten Buru terhadap Sensus Penduduk 2020 Lanjutan setelah banyaknya upaya-upaya BPS dalam mengedukasi masyarakat melalui media sosial. Penelitian ini menggunakan penelitian kuantitatif deskriptif dari hasil data yang dikumpulkan langsung dari masyarakat di Kabupaten Buru. Hasil dari penelitian menunjukkan bahwa sebagian besar masyarakat memiliki Brand Awareness yang tinggi terhadap Sensus Penduduk 2020 Lanjutan, sebagian lagi memiliki tingkat awareness yang sedang dan ada sebagian kecil yang memiliki awareness yang rendah.
Exploring The Potential of Visual Communication Design Education: Transforming Education Paradigm
Authors: Creativani Kharisma
Published: May 2023

The field of visual communication design (VCD) has been growing in recent years, with advances in technology and the emergence of more sophisticated tools for creating visual media. Recently, the trend in visual communication study model is shifting towards more interdisciplinary approaches, combining traditional design elements with technology, psychology, and media studies. Despite the tremendous increase in the number of college, university, and art school design programs over the past two decades, it’s has been difficult to impose a formula that ensures a solid core curriculum, and a general handbook for how visual communication design should be taught and learned. This paper seeks to explore the potential of visual communication design education to transform existing educational paradigms. It will draw on current literature to discuss the emerging trends and applications of VCD education, exploring how this type of education can be used to create meaningful learning experiences that are relevant to the changing needs of today’s learners.
Reservoir Characterizations and Reservoir Performance of Mishrif Formation in Amara Oil Field
Authors: Baker Hussain Ali , Awad Alaa Shihan
Published: May 2023

Mishrif Formation is the main reservoir in Amara Oil Field. It is divided into three units (MA, TZ1, and MB12). Geological model is important to build reservoir model that was built by Petrel -2009. FZI method was used to determine relationship between porosity and permeability for core data and permeability values for the uncored interval for Mishrif formation. A reservoir simulation model was adopted in this study using Eclipse 100. In this model, production history matching executed by production data for (AM1, AM4) wells since 2001 to 2015. Four different prediction cases have been suggested in the future performance of Mishrif reservoir for ten years extending from June 2015 to June 2025. The comparison has been made between these different cases to select the best case for developing the field that gives the highest recovery factor. The case-4 was chosen to be the best case involved adding 20 vertical production wells, 5 horizontal production wells and 5 vertical injection wells in the reservoir with plateau rate of 50MSTB/D in starting of prediction and dropping to reach 13.5 MSTB/D in end of the prediction and the cumulative production from the reservoir equal to 82 MMSTB and recovery factor reaching 9.06% at the end of 2025.
Experimental Investigation of Nano Alumina and Nano Silica on Strength and Consistency of Oil Well Cement
Authors: Abdul Hadi Hassan , Abdul Ameer Hassan
Published: May 2023

In oil and gas well cementing, a strong cement sheath is wanted to insure long-term safety of the wells. Successful completion of cementing job has become more complex, as drilling is being done in highly deviated and high pressure-high temperature wells. Use of nano materials in enhanced oil recovery, drilling fluid, oil well cementing and other applications is being investigated. This study is an attempt to investigate the effect of nano materials on oil well cement properties. Two types of nano materials were investigated, which are Nano silica (>40 nm) and Nano Alumina (80 nm) and high sulfate-resistant glass G cement is used. The investigated properties of oil well cement included compressive strength, thickening time, density, free water and rheological properties. All tests are conducted according to API specification and proceed in Laboratory of Drilling in Petroleum Technology Department in University of Technology and in Missan Oil Company. The experimental results show that NS and NAL behave like accelerators when added to cement and work to increase the compressive strength at 38°C but these increasing in compressive strength changes when the temperature is increased to 60°C. Also, adding NS and NAL lead to increasing in rheological parameter and reduce free water but the change in density is very small. The results show that the effect of NAL on compressive strength and thickening time is greater than the effect of NS but the effect of NS on free water and rheology is greater than the effect of NAL.
The Dynamic Behavior of Water Flowing Through Packed Bed of Different Particle Shapes and Sizes
Authors: Jasim Haneen Ahmed , Najim Sarmad Talib
Published: May 2023

An experimental study was conducted on pressure drop of water flow through vertical cylindrical packed beds in turbulent region and the influence of the operating parameters on its behavior. The bed packing was made of spherical and non-spherical particles (spheres, Rasching rings and intalox saddle) with aspect ratio range 3.46  D/dp  8.486 obtaining bed porosities 0.396 0.84 and Reynolds number 1217  21758. The system is consisted of 5 cm inside diameter Perspex column, 50 cm long; distilled water was pumped through the bed with flow rate 875, 1000, 1125, 1250,1375 and 1500 l/h and inlet water temperature 20, 30, 40 and 50 ˚C. The packed bed system was monitored by using LabVIEW program, were the results have been obtained from Data Acquisition Adaptor (DAQ).
Zn(II) Removal from Wastewater by Electrocoagulation/Flotation Method using New Configuration of a Split-Plate Airlift Electrochemical Reactor
Authors: Ammar Saad H. , Ali Fatma Dheif , Shafi Ruaa Fadhil , Elaibi Alaa Ibrahim
Published: May 2023

In this paper, split-plate airlift electrochemical reactor as an apparatus with new configuration for wastewater treatment was provided. Two aluminum plates were fixed inside the reactor and present two functions; first it works as split plates for internal loop generation of the airlift system (the zone between the two plates acts as riser while the other two zones act as downcomer) and second it works as two electrodes for electrocoagulation process. Simulated wastewater contaminated with zinc ions was used to test the performance of this apparatus for zinc removal by studying the effect of different experimental variables such as initial concentration of zinc (50-800 ppm), electrical current density (2.67-21.4 mA/cm2), initial pH (3-11), air flowrate (12-50 LPH), and implicitly the electrocoagulation time. The results have shown the applicability of this split-plate airlift reactor as electrocoagulation cell in the treatment of wastewater such as wastewater containing Zink ions. The Zink removal percent was shown to increase upon increasing the current density and the electrolysis time. Also best removal percent was achieved in the initial pH range between 7 and 9. The minimum electrocoagulation time required for removal of ≥ 90% of Zn(II) decreases from 90 to 22 min when operating current density increases from 2.67 to 21.4 mA/cm2.
Sistem Reproduksi, Pertumbuhan dan Perkembangan ikan
Authors: Safira Afifah , Astriya
Published: May 2023

Penggabungan gamet haploid dari jantan dan betina untuk menghasilkan keturunan merupakan langkah awal dalam proses pemuliaan reproduksi. Ikan adalah hewan air dengan dua jenis kelamin, meskipun beberapa spesies hermafrodit memiliki kedua jenis kelamin dalam satu tubuh, sementara yang lain (protandri dan protogyny) mengalami perubahan jenis kelamin sepanjang keberadaannya. Organisme hidup (ikan) sering bereproduksi secara seksual. Ikan terlibat dalam berbagai tindakan dan proses selama proses reproduksi, mulai dari meminang dan kawin hingga pemijahan sampai menjaga telur dan anaknya. Perkembangan ikan dan diferensiasi jenis kelamin dipengaruhi oleh faktor lingkungan dan hormon.
Turnitin DOARJ1
Authors: Marni
Published: May 2023

Dalam rangka meningkatkan mutu pelayanan dosen khususnya Tridarma perguruan tinggi diperlukan pengakuan kinerja sehingga dosen yang bersangkutan dapat meningkatkan kinerjanya.
Social Psychology in the Era of the Metaverse: An overview of recent studies
Authors: Benosman Mouhacine
Published: May 2023

On the one hand, social psychology is the specialization of psychology that studies all aspects of real human social existence, from love relationships to prejudice, exclusion, and violence, e.g., (Branscombe & Baron, 2017). On the other hand, the metaverse can be defined as a virtual reality space in which users can interact with other users within an environment generated by computer, e.g., (Hornby, 1995), (Mystakidis, 2022). The aim of this short paper is to give an overview of some recent studies in social psychology in the context of the metaverse.
Tinjauan Teknik dan Strategi dalam Pasar Saham Menggunakan Bantuan Chat GPT
Authors: Steven Michael
Published: May 2023

Saham merupakan salah satu aspek penting dalam suatu perkenomian, karena saham merupakan bukti dari kepemilikan suatu perusahaan. Naik dan turunnya harga saham dapat menunjukkan nilai dari suatu perusahaan, naik dan turun harga tersebut dapat terjadi kapanpun saja yang mengakibatkan adanya resiko ketika ingin membeli saham suatu perusahaan. Maka dari itu strategi saham merupakan teman baik dari para investor yang telah dirangkai dan dikembangkan oleh investor sebelumnya agar dapat mengurangi tingkat resiko tersebut. Artikel tersebut melakukan review dari berbagai teknik/strategi ketika investor ingin membeli saham. Artikel tersebut juga menggunakan adanya bantuan analisis dari Artificial Intelligence (AI) yaitu ChatGPT, yang direviewkan kembali. Pada akhir artikel ditemukan bahwa berbagai teknik dan strategi pada pasar saham sangat berpengaruh pada naik dan turunnya nilai saham dari suatu bisnis.
Are Researchers Penalized for Free Speech?
Authors: Gulati Kris , Palladini Lorenzo
Published: May 2023

How free is freedom of speech in academia? In recent years, there has been a growing concern that academics may be suppressing some of their beliefs for fear of adverse outcomes on their careers. By analyzing a unique data set of US researchers across various fields from 2000 to 2021, we present the first evidence of a citation penalty faced by researchers who gain media coverage for expressing their opinion on divisive topics. Employing a staggered difference-in-differences methodology, we observe that the work of academics involved in free speech incidents is less likely to be cited compared to journal articles of other scholars with comparable quality and characteristics. Thus, this study sheds light on the reality of academic free speech, which plays a fundamental role in politics, society, and innovation.
Differential expression of PPP1R3C in cancer of the cervix.
Authors: Mamoor Shahan
Published: May 2023

Almost all cervical cancers are caused by infection with high-risk human papillomaviruses (HPVs) (1-3); the transcriptional features that distinguish the gene expression programs of HPV-induced cancers from that of cancers resulting from non-viral abrogation of tumor suppression remain incompletely defined. We mined public and published microarray datasets (4, 5) to determine in an unbiased fashion and at the level of the transcriptome genes most differentially expressed in the primary tumors of patients with the most common type of cervical cancer, cervical squamous cell carcinoma. We found significant differential expression of the gene encoding protein phosphatase 1 regulatory subunit 3C, PPP1R3C, when comparing tumor tissue from the human cervix to the tissue of origin. PPP1R3C mRNA was present at significantly lower quantities in tumors of the cervix as compared to normal tissues from the cervix. Analysis of human survival data revealed that expression of PPP1R3C in tumors of the cervix was correlated with overall survival in patients with cervical cancer. PPP1R3C expression changes may be important for the initiation or progression of cancer of the cervix in humans.
Children’s reasoning about empathy and social relationships
Authors: Smith-Flores Alexis Sierra , Bonamy Gabriel , Powell Lindsey J
Published: May 2023

Across the lifespan empathic and counter-empathic emotions are shaped by social relationships. Here we test the hypothesis that this connection is encoded in children’s intuitive theory of psychology, allowing them to predict when others will feel empathy versus counter-empathy and to use vicarious emotion information to infer relationships. We asked 4- to 7-year-old children (N = 77) to make emotion predictions or relationship inferences in response to stories featuring two characters, an experiencer and an observer, and either a positive or negative outcome for the experiencer. In the context of positive outcomes, we found that children engaged in robust joint reasoning about relationships and vicarious emotions. When given information about the characters’ relationship, children predicted empathy from a friendly observer and counter-empathy from a rival observer. When given information about the observer’s response to the experiencer, children inferred positive and negative relationships from empathic and counter-empathic responses, respectively. In the context of negative outcomes, children predicted that both friendly and rival observers would feel empathy toward the experiencer, but they still used information about empathic versus counter-empathic responses to infer relationship status. Our results suggest that young children in the US have a blanket expectation of empathic concern in response to negative outcomes, but otherwise expect and infer that vicarious emotions are connected to social relationships. Future research should investigate if children use this understanding to select social partners, evaluate their own relationships, or decide when to express empathy toward others.
Personality Correlates of Dispositional Forgiveness: A Direct Comparison of Interpersonal and Self-Forgiveness Using Common Transgression Scenarios
Authors: Hampton Lucas , Carruth Nicholas , Lurquin John , Miyake Akira
Published: May 2023

Although the personality correlates of dispositional interpersonal forgiveness (forgiveness of others) have been well characterized, those of dispositional self-forgiveness are less well understood. Moreover, when the personality correlates are examined for both types of forgiveness, the comparison has been based on participants’ self-report ratings on questionnaires. The current study sought to address these gaps in the literature by adopting a scenario-based approach, which has been used less frequently, especially in self-forgiveness research. A total of 160 participants read six fictional scenarios, each describing a severe transgression, from the perspective of the transgressor (self-forgiveness, n = 78) or the victim (interpersonal forgiveness, n = 82) of the transgression, and then responded to several items assessing different facets of forgiveness (avoidance, revenge, and benevolence). Participants’ personality (Big Five) and explanatory style were also assessed. Consistent with prior literature, agreeableness and neuroticism generally predicted different facets of interpersonal forgiveness. These two personality traits also predicted facets of self-forgiveness, but, additionally, conscientiousness and one’s tendency to internalize failure (the personal component of explanatory style) uniquely predicted self-forgiveness, especially avoidance motivations. These results point to both similarities and differences in the personality correlates for interpersonal and self-forgiveness. As a secondary, more exploratory aim, the current study compared the results from our scenario-based assessment of forgiveness to those based on a commonly used questionnaire, the Other and Self subscales of the Heartland Forgiveness Scale (HFS). As expected, the Other subscale of the HFS were associated with levels of interpersonal forgiveness assessed with our transgression scenarios, but, surprisingly, so were the HFS Self subscale. Moreover, the Self subscale was not associated with levels of self-forgiveness assessed with transgression scenarios, except for avoidance motivations. These results suggest that scenario-based and questionnaire-based methods may capture different facts of forgiveness and cannot be used interchangeably, especially for the assessment of self-forgiveness. More generally, the current study illustrates the importance of conducting direct within-study comparisons of interpersonal and self-forgiveness as well as of different assessment methods to better understand the similarities and differences between the two types of forgiveness.
Measurement Opportunities for Studying Sexual and Gender Diverse Partnerships in Recent Population-based Surveys
Authors: Julian Christopher , Manning Wendy , Kamp Dush Claire M
Published: May 2023

Objective: This article outlines for family scholars and researchers designing surveys or searching for data on sexual and gender-diverse families the latest methodological advancements in United States population-based surveys for studying sexual and gender-diverse partnerships by reviewing five recently collected, publicly available, population-representative datasets.Background: LGBTQIA+ adults and sexual and gender-diverse partnerships are an expanding demographic group in the United States. Yet, measurement limitations have restricted studies of these partnerships that use population-based studies. To address this issue, researchers designing population-representative data collections have adopted new strategies to measure sexual and gender-diverse partnerships accurately. However, most population representative surveys continue to lack data on growing segments of the LGBTQIA+ population by relying solely on the sex of partners or limited sexual and gender identity measures.Conclusion: We recommend expanding population-based surveys to incorporate inclusive measures of sexual and gender identity, directly asking about the gender composition of a couple and measurement of cohabiting and other nonmarital relationships. These approaches are especially important for understanding relationships among younger individuals who do not follow heteronormative relationship trajectories and hold diverse gender and sexual identities.Implications: Although the research opportunities on SGD individuals and partnerships are expanding; researchers must remain mindful of the limitations of current data sets and advocate for updates to the United States population data infrastructure.
THE RELATIONSHIP BETWEEN MANGROVE DENSITY AND SEDIMENTATION RATE IN COASTAL KUALA JAMBI DISTRICT TANJUNG JABUNG TIMUR JAMBI PROVINCE
Authors: Chaniago Rizki , Samiaji Joko , Wibowo Muhammad Arief
Published: May 2023

This research was carried out from March to April 2021 in the coastal area of ​​Kuala Jambi District, Tanjung Jabung Timur Regency, Jambi Province. The samples were processed at the Marine Biology and Marine Chemistry Laboratory, Faculty of Fisheries and Marine, Universitas Riau, which aims to examine the density of mangroves, analyze the sedimentation rate, and know the relationship between mangrove density and sedimentation rate. A survey method was used in this study. The results showed that the dominant mangrove species in the coastal waters of Kuala Jambi was Sonneratia alba with an Important Index Value (INP) of 103.5%. Mangrove density in the coastal waters of Kuala Jambi was included in good criteria with moderate and very dense mangrove cover. The bottom sediment of the coastal waters of Kuala Jambi was dominated by the type of sandy mud with a percentage of 42.23 - 55.63%. The value of the sedimentation rate in the coastal waters of Kuala Jambi at station 1 ranged from 94.401 to 141.602 mm/year. At station 2, the sedimentation rate was between 98.692 and 168.778 mm/year, while at station 3 the sedimentation rate was from 100.122 to 145.893 mm/year. Mangrove density had a very close relationship with the sedimentation rate, where the higher the mangrove density, was followed by the higher the sedimentation rate.
THE EFFECT OF ANESTHESIA OF BASIL (Ocimum basilicum) LEAF EXTRACT WITH DIFFERENT DOSES ON THE SURVIVAL OF CATFISH (Pangasius sp.)
Authors: Faqihudin Syukron , Hidayati Sri , Aji Muhammad Tri
Published: May 2023

The purpose of this study was to determine the effect of anesthesia of basil leaf extract with different doses on the survival of striped catfish. This research was conducted in Kedungsari Village, North Magelang District, Magelang City, Jawa Tengah in January 2022. The study was carried out using a Completely Randomized Design (CRD) with 3 treatments and 4 replications. The treatments were anesthesia with doses of 10%, 15%, and 20%, the catfish that had fainted was put in Styrofoam for 7.5 hours. The variables observed included the duration of anesthesia, the duration of fainting, the length of recovery time, and survival. The results showed that the dose of basil leaf extract had the best concentration of basil leaf extract, which was 20% with 2.5 minutes of stunning time, 25.74 minutes of fainting time, and 6.13 minutes of recovery time. The highest survival rate of catfish using basil leaf extract was found at a concentration of 20%, 15% while the lowest survival rate was at a concentration of 10% treatment.
POTENTIAL CHITOSAN OF WASTE SHELL MANTIS SHRIMP (Harpiosquilla raphidea) AS ANTIBACTERIAL
Authors: Putra Muhammad Ridho , Karnila Rahman , Hasan Bustari
Published: May 2023

Mantis shrimp carapace waste can be processed into chitin and chitosan as antibacterial. This study aims to determine the characteristics, and heating time of chitosan on the potential of chitosan as an antibacterial, and to obtain the best chitosan in increasing the durability of catfish meatballs. Experimental research method with the manufacture of chitin and continued with deacetylation with a long heating time to obtain chitosan. The analytical parameters consisted of chemical characteristics (moisture content, ash, and degree of deacetylation), the inhibitory power of chitosan against Escherichia coli and Staphylococcus aureus bacteria, and the effectiveness of chitosan on the quality of catfish meatballs. The results showed that the chemical characteristics of chitosan were water content (K1 3.72%, K2 4.65%, K3 5.24%), ash (K1 2.38%, K2 2.53%, K3 3.69%), and the degree of deacetylation (K1 54.31%, K2 78.04%, K3 79.51%). The results of the inhibition test of chitosan against Escherichia coli and Staphylococcus aureus bacteria using the well method showed an inhibition zone with values (K1 10.11 mm and 10.18 mm, K2 11.52 mm and 11.48 mm, K3 12.15 mm and 11. 70 mm, positive control 14.64 mm and 14.02 mm, negative control 9.25 mm and 7.35 mm). This value indicates that the activity of chitosan as an antibacterial is quite strong. The effectiveness of chitosan on the quality of catfish meatballs with 7% chitosan immersion and storage at room temperature showed that the TPC value of catfish meatballs with chitosan could prolong the shelf life of meatballs until day-2
THE EFFECT OF PLASTIC COVERS WITH DIFFERENT COLOR ON THE TYPE AND ABUNDANCE OF EPIPELIC DIATOMS IN THE NATURAL LOVERS INTERIDAL AREA (PAB) CITY OF DUMAI
Authors: Nisa Chairun , Siregar Sofyan Husein , Nasution Syafruddin
Published: May 2023

The purpose of this study was to determine the effect of the plastic cover with different colors on the type and abundance of epipelic diatoms. This research was conducted in March 2022 which is located in the Pecinta Alam Bahari (PAB) area of ​​Dumai City. The method used is an experimental method with plastic cover treatment with different colors. This experiment has one factor, namely plastic color, with four levels of treatment, namely no plastic (control), clear, red, and black colors. The type of plastic used is the same type of plastic. The experimental units are made of iron which is assembled with a size of 1x1m and 12 subunits are measuring 10x10 cm. Observations were made every day for three consecutive days. The results showed that there were 15 species of epipelic diatoms, where the species that were often found every day were Cosdisnodiscus sp., Gyrosigma sp., Navicula sp., and Pleurosigma sp., Skeletonema sp, Striatella sp, Synedra sp. The abundance of diatoms in the treatment without plastic ranged from 38993.8 - 68239.2 ind/cm2, the clear plastic cover ranged from 39880.04 to 67353.0 ind/cm2, the red plastic cover ranged from 31904.0 to 69125.4 ind/cm2, and the black plastic cover ranged from 28359.14 – 54945.83 ind/cm2. The results of the One Way Anova test between treatments showed a significant difference every day, except on day 0 which was not significantly different