bluuebunny/crossref_metadata_2025 huggingface dataset:
ANALISIS PEMANFAATAN FOTO UDARA HASIL PEMOTRETAN UNMANNED AERIAL VEHICLE (UAV) TIPE POST-PROCESSED KINEMATIC (PPK) UNTUK PEMETAAN TOPOGRAFI
Authors: Diodemus Pedro , Wahyono Eko Budi , Sufyandi Yendi
Published: May 2021

Salah satu visi dari lima visi untuk Indonesia pada periode kedua masa jabatan Bapak Ir. H. Joko Widodo sebagai Presiden Republik Indonesia yaitu melanjutkan pembangunan infrastruktur-infrastruktur besar. Guna mendukung kebijakan pemerintah tersebut maka perlu adanya pengadaan informasi geospasial. Informasi geospasial yang teliti merupakan pondasi pokok dalam pembangunan infrastruktur. Salah satu unsur pengadaan informasi geospasial yaitu peta topografi. Selain melalui metode terestris, akuisisi data dalam pemetaan topografi dapat diperoleh melalui metode fotogrametris menggunakan Unmanned Aerial Vehicle (UAV) dengan modul Post-Processed Kinematic (PPK) yang akan menghasilkan foto udara. Penelitian ini bertujuan untuk mengetahui ketelitian geometri posisi horizontal dan posisi vertikal orthophoto sesuai standar teknis Peraturan Menteri Agraria dan Tata Ruang/Badan Pertanahan Nasional Nomor 21 Tahun 2019 tentang Peta Dasar Pertanahan. Metode penelitian yang digunakan adalah deskriptif komparatif dengan pendekatan kuantitatif. Pendekatan kuantitatif dilakukan dengan penggunaan metode fotogrametris dan metode ekstra terestris yang akan diuji secara deskriptif komparatif melalui uji-t statistik antara koordinat x, y, z orthophoto yang telah terkoreksi dengan koordinat x, y, z hasil pengamatan ICP di lapangan. Hasil penelitian ini yaitu nilai akurasi horizontal (CE90) sebesar 0,386 meter dan nilai akurasi vertikal (LE90) sebesar 0,551 meter dengan uji-t yang menunjukkan bahwa tidak ada perbedaan yang signifikan antara koordinat ICP hasil pengukuran lapangan dengan koordinat x, y orthophoto maupun koordinat z DSM dengan tingkat signifikansi sebesar 5%. Orthophoto pada penelitian ini memenuhi standar teknis skala maksimal 1:1.000 pada kelas 2 sedangkan DSM mampu memenuhi standar teknis skala maksimal 1:2.500 pada kelas 2 dengan interval garis kontur sebesar 1 meter.
PROGRAM KONVERSI PETA BERSTANDAR CITYGML DARI PRODUK PEMETAAN TIGA DIMENSI (3D)
Authors: Veriandi Mirza , Suwardhi Deni , Trisyanti Shafarina W. , Harto Agung Budi , Murtiyoso Arnadi , Soeksmantono Budhy
Published: May 2021

CityGML merupakan model data yang bersifat terbuka untuk memodelkan wilayah perkotaan maupun lanskap secara 3D. Dari lima tingkat perincian/Levels of Detail (LOD) pada CityGML, LOD2 menjadi tingkat perincian yang penting karena ketersediaan informasi atap bangunan. Informasi ini merupakan syarat dasar data untuk pelaksanaan aplikasi seperti perencanaan detail maupun penataan lingkungan dan bangunan. Peta kota 3D yang dominan dengan bangunan dapat diperoleh dari metode pemetaan udara lidar maupun fotogrametri. Produk yang dihasilkan biasanya mempunyai struktur data dalam format CAD atau 3D-shapefile dan bukan dalam format CityGML. Makalah ini menjelaskan pembangunan program konversi dari 3D-shapefile menjadi peta 3D CityGML LOD2 berbasis bahasa pemrograman Python. Pembuatan program ini didasari argumen bahwa model bangunan CityGML LOD2 membutuhkan waktu yang lama untuk dihasilkan secara manual. Dengan demikian, program konversi ini dibuat untuk mengurangi waktu yang dibutuhkan dalam menulis file CityGML. Selain program untuk menulis data bangunan, dibentuk program lain yang dapat menggabungkan data dari program 3dfier dan 3Dtree sehingga didapatkan model CityGML wilayah lengkap dengan objek bangunan, lanskap, dan pohon individual. Sebagai percobaan program, pemodelan dilakukan pada wilayah ITB Jatinangor. Program yang dihasilkan berhasil membangun model bangunan LOD2 dengan batasan yakni kesalahan geometri yang dimiliki oleh data masukan juga dimiliki pada model hasil dari program.
APLIKASI SEMANTIC SEGMENTATION UNTUK EKSTRAKSI FITUR BANGUNAN PADA PETA RUPABUMI SKALA BESAR
Authors: Hartanto Prayudha , Purwono Nugroho , Susetyo Danang Budi , Hidayat Fahrul , Hariyono Mochamad Irwan
Published: May 2021

Teknologi kecerdasan buatan adalah sebuah inovasi mutakhir yang mengandalkan peran komputer untuk mengenali dan memprediksi berbagai objek yang menjadi perhatian, dalam hal ini adalah fitur bangunan pada peta Rupabumi Indonesia (RBI) skala besar. Teknologi ini memiliki cakupan yang sangat luas, dan dalam penelitian ini akan dibahas aplikasi salah satu cabang kecerdasan buatan yang paling kompleks, yakni deep learning. Metode deep learning yang digunakan dalam ekstraksi fitur bangunan pada peta RBI skala besar adalah semantic segmentation, dimana objek tidak hanya dideteksi, namun juga disegmentasi bagian tepinya tanpa memperhatikan unit satuan bangunan sehingga diperoleh hasil-hasil berupa fitur bangunan dalam satu kesatuan segmen dan fitur selain bangunan menjadi segmen lainnya. Algoritma semantic segmentation yang dipilih adalah Unet yang dibagi ke dalam arsitektur Small Unet dan Full Unet. Arsitektur Small Unet menggunakan 18 layer konvolusi sedangkan Full Unet menggunakan 19 layer. Data training yang digunakan adalah data UAV wilayah Kantor Badan Informasi Geospasial (BIG), foto udara Wuhan University, dan foto udara kota Austin Texas. Rasio data training-testing yang digunakan adalah 80%:20%, dengan learning rate 10-4, fungsi optimasi Adams dan fungsi loss binary cross-entropy. Proses pembuatan model (training) dilakukan menggunakan perangkat lunak Tensorflow yang dijalankan dalam platform Google Colaboratory. Arsitektur Small Unet memberikan hasil 0,119 untuk model loss; 0,932 untuk akurasi piksel dan 0,698 untuk mean Intersection over Union (IoU). Sementara itu arsitektur Full Unet memberikan hasil yang relatif lebih baik yakni 0,112; 0,943; dan 0,773 masing-masing untuk model loss, akurasi piksel dan IoU.
Exotic as Erotic: The Sexualization of the Japanese Kimono in Nineteenth Century European Art
Authors: Leisk Madeleine
Published: May 2021

The late nineteenth century represented a unique period for art production as artists searched for a solution to the restrictive style of the royal art academies and new ways to represent contemporary society. With the increasing connectedness of the world during this time, due to trade, came a renewed interest in the world outside of Europe with world fairs and international exhibitions. This international intrigue was manifested in Europe through an obsession with material objects from exotic cultures. Japanese objects were of particular interest as Japan had recently been opened to the West for the first time since the sixteenth century. Exotic material culture provided the unique and contemporary approach to art that European artists were searching for. One of the most popular and visually represented aspects of exotic material culture during the nineteenth century were Japanese kimonos which artists used as an erotic symbol. My research will examine the social and cultural factors that led to the eroticization, and often fetishization, of an entire culture through the misrepresentation of a single culturally significant object. These factors include a colonialist interest in the exotic, the eroticization of Japanese prints featuring kimonos, associations between kimonos and Geishas, and the use of kimonos in Europe as a boudoir garment. This prolific eroticization of the kimono in nineteenth-century European art is just one of many cases of the appropriation of foreign cultures through culturally specific objects, an issue that still prevails today.
Augmented Reality Overlay System for Computer-guided Needle Procedures
Authors: Baum Zachary
Published: May 2021

Purpose: Augmented reality overlay systems can be used to project a CT image directly onto a patient during procedures. They have been actively trialed for computer-guided procedures, however they have not become commonplace in practice due to restrictions of previous systems. Previous systems have not been handheld, and have had complicated calibration procedures. We put forward a handheld tablet-based system for assisting with needle interventions. Methods: The system consists of a tablet display and a 3-D printed reusable and customizable frame. A simple and accurate calibration method was designed to align the patient to the projected image. The entire system is tracked via camera, with respect to the patient, and the projected image is updated in real time as the system is moved around the region of interest. Results: The resulting system allowed for 0.99mm mean position error in the plane of the image, and a mean position error of 0.61mm out of the plane of the image. This accuracy was thought to be clinically acceptable for tool using computer-guidance in several procedures that involve musculoskeletal needle placements. Conclusion: Our calibration method was developed and tested using the designed handheld system. Our results illustrate the potential for the use of augmented reality handheld systems in computer-guided needle procedures.
Neuroanatomical Hippocampal Structures and Heritability of Hippocampal Volume in Relation to Memory
Authors: Smith Shaughnelene
Published: May 2021

The goal of this project was to investigate the genetic heritability of hippocampal volume using twin pairs and assess the neuroanatomical structures of the hippocampus and how these properties relate to memory in humans. Data for this project was obtained from the Human Connectome Project: a data bank established to provide neural images to the public. MRI scans were used to obtain brain images of each of the participants and basic cognitive tasks were used to obtain memory ability. To date, 506 subjects have been analyzed: 66 monozygotic twin pairs, 44 dizygotic twin pairs, and 47 sibling pairs. The data collection for of this project was three-fold. First, segmentations were performed to calculate the volume of the anterior and posterior regions of the hippocampus. Secondly, the magnitudes of hippocampus dentations were recorded within the three segments – the head, body, and tail – of the hippocampus. Lastly, visual inspection was used to asses incomplete inversions, which was defined as an atypical anatomical pattern in the hippocampus. The results of this project showed a strong heritability observed on the right anterior hippocampus (hb2=1.365) and right amygdala (hb2=1.315), moderate heritability observed on the left posterior hippocampus (hb2=0.765), and weak heritability observed on the right posterior hippocampus (hb2=0.2654). This indicates that hippocampal volumetric heritability showed strong genetic control for the right hemisphere and strong environmental control for the left hemisphere. The project is still in the process of correlating the anatomical structures to the memory capabilities of the participants.
Application of the iKnife for the Enhanced Identification of Cancerous Tissue in Breast Surgery
Authors: Vanner Stephanie
Published: May 2021

Improved tumour margin detection in breast surgery is required to reduce cancer recurrence and to minimize the amount of tissue removed. Rapid evaporative ionization in mass spectrometry (REIMS) pair s the surgical diathermy device directly to a mass spectrometer to analyze the lipid components in the surgical aerosol. This intelligent knife, or iKnife, has the potential to provide surgeons with real-time characterization of healthy versus cancerous tissue.Objective: To show that healthy and malignant breast tissue can be differentiated by REIMS using coagulation and cut diathermy modes.Methods: 83 patients were recruited at Charing Cross Hospital. 76 normal and 44 tumour samples were cut using a surgical diathermy handpiece and the aerosol was analyzed by mass spectrometry and confirmed by histology. Multivariate statistical analyses were used to evaluate the data.Results: In cut mode, the data demonstrates 95.1% correct classification of healthy and tumour samples, with a sensitivity of 91.9% and a specificity of 95.9%. In coagulation mode, the data revealed93.5% correct classification of healthy and tumour samples, with 89.3% sensitivity and 94.1% specificity.Conclusions: This preliminary data suggests the iKnife can distinguish between healthy and malignant tissue ex vivo with the potential to provide intraoperative feedback to surgeons.
Variable Efficacy of the Purple Loosestrife (Lythrum salicaria) Biological Control Program in Ontario: Recommendations for Future Monitoring
Authors: Boag Angela
Published: May 2021

Invasive species represent a major threat to global biodiversity and have multi‐million dollar impacts onagricultural productivity as well as the functioning of natural ecosystems. Biological control, theintroduction of the natural enemies of invading species, is a potentially cost‐effective and powerfulmanagement tool for controlling the spread and impact of exotic organisms. However, the monitoringcomponent of biocontrol initiatives is rarely adequate to determine their success, impeding theimprovement of biocontrol techniques. In order to determine the efficacy of the biocontrol beetlesintroduced to control purple loosestrife (Lythrum salicaria), an invasive wetland plant in Ontario, 52 L.salicaria populations were surveyed in eastern and central Ontario in August and September 2009. Threepopulation types were surveyed, those in which the release of Galerucella species biocontrol beetles hadanecdotally been effective, anecdotally ineffective, and those in which beetles had never beenpurposefully released.  The level of herbivory damage inflicted by the biocontrol beetles was recorded, aswell as plant height, flower number, and measures of stand density.  It was determined that thebiocontrol beetles have spread throughout Ontario, and are inflicting a moderate level of damage onpurple loosestrife populations. However, significant variation exists among populations in thesemeasures, and levels of damage were not significantly different between the three site types. Thisindicates that a variety of ecological factors influence the efficacy of biocontrol, and it is recommendedthat the purple loosestrife biocontrol program be more intensively monitored in future so that it mayinform subsequent initiatives in Canada.
Transgressing Time, Place, Gender, and the Material: The Political Strategies of Louise Erdrich, Tomson Highway, and Daniel David Moses
Authors: Schaefli Laura
Published: May 2021

The colonization of Aboriginal peoples in North America involved systematic efforts to control and eradicate Indigenous knowledges and cultures. However, Aboriginal peoples have resisted colonization through creative expression; creating space for the exploration and critique of the myriad identities informed by this relationship. This study focuses on work by prominent American and Canadian authors Louise Erdrich, Tomson Highway, and Daniel David Moses. Erdrich, who self‐identifies as Chippewa with mixed European ancestry, is best known for the interconnections of short narratives between and within her novels. Tomson Highway, a Cree novelist and playwright, is most famous for his cycles of“rez” playsdetailing life on a fictional Ontario reserve. Daniel David Moses, member of the Delaware First Nation in Brantford, Ontario and acclaimed Canadian playwright, is best known for his parody of non‐Aboriginal constructions of the “authentic Indian” in his work. These authors use political destruction of normative categories, particularly gender transgression, but also past and present, here and there, material reality and the spirit realm to create space for the playful exploration of Indigenous identities. I explore the ways in which gender transgression is nested in larger themes of playful category destruction and creative reconstruction to open up issues of political importance to these authors. By exploring these themes in conjunction with author biographies and interviews, I identify the political motives and implications of category transgression.
Inglorious Judgment
Authors: Nadolny Tamara
Published: May 2021

It almost sounds like the beginning of a joke, to ask what Stanley Kramer’s 1961 film Judgment at Nuremberg and Quentin Tarantino’s 2009 Inglourious Basterds have in common. One film is a lengthy black and white, Oscar‐winning courtroom drama, the other a recently released, blood‐soaked World War II fantasy. Yet in an essay for a Law and Literature seminar with Dr. Scott last semester, I sought to explore the similarities between these two films in light of their approaches to themes of justice and legality. Despite initial appearances the two films are remarkably alike. Both Kramer and Tarantino use casting in noteworthy ways ‐ choosing their actors not only for their considerable talents but also theircultural cache. Judgment and Basterds also use the framework of Germany and the war to comment not only on the past, but also on the present; Kramer makes an interesting commentary on the dangers of McCarthyism, and Tarantino carefully allies his audience with a character whose actions clearly can be seen as terrorism. Kramer and Tarantino further highlight their views on justice by using language in interesting, and revealing ways.  By looking at a film from the past, as well as the present, this essay examines the ways in which filmmakers combine historical events with aspects of the present to raise questions about important current issues; specifically, imposed justice and legality within the context ofboth the Cold War and the War on Terror.
Traditional Medicine vs. the Chinese Government
Authors: Crossman Rozena
Published: May 2021

This presentation investigates China’s policy towards traditional Chinese healing practices. The Chinese government’s policies are highly influenced by “Western” philosophy and ideals that are not always compatible with older aspects of Chinese culture, such as healing practices. (The term “Western” is put in quotations because while it refers to a euro‐centric culture, the idea of“west” varies depending upon one’s position on the globe.)  China’s attitude towards traditional healing is indicative of a greater problem faced by most of today’s nations: in a world dominated by “Western”language and philosophy, holistic principles and practices tend to not only be misunderstood but completely shunted aside. By examining modern Chinese attitudes toward non‐scientific healing, this project intends to expose the flaws in the underlying logic of modern biomedicine—flaws common to both China and the West. The research is divided into five main categories: the origin and nature of traditional healing and healing cults; traditional healing as a religion; traditional healing as a science; “Western” influence on Chinese government; and, government definition and designation of superstition and cults. These five topics combined create a comprehensive understanding of traditional healing practices as well an understanding of their current political state. Within these categories, problems surrounding freedom of belief will naturally arise. Accompanying these problems will be the issues concerning legitimacy of traditional healing, and how “legitimacy” itself is defined—and who defines it.
The Contemporary Religious Marketplace in China and the Role of Rational Choice Theory
Authors: Killoran Raissa
Published: May 2021

In spite of the state‐sanctioned restrictions on religion following the Cultural Revolution and the relaxed, albeit still limiting, policy in 1979, religion has continued to persist in Chinese culture through inventive practices.  Religious adherents partake in a unique religious marketplace, in which choice is curtailed by political bans.  However, religiosity has maneuvered through such sanctions, producing an unusual market and suggesting an inherent sociological drive towards forming religious community.  Rational choice theory suggests a theory of religious economy in which a supply and demand model determines the success or failure of particular religious traditions.  Through access to a religious marketplace in a religiously pluralistic society, religious ‘consumers’ may select religions which fulfill their expectations and spiritual needs. While the model of the religious marketplace is credible in regards to the North American religious situation, rational choice theory in contemporary China requires a more complex model.  Due to historical restrictions on Chinese religious practice, a religious market was rendered temporarily invisible, thus creating innovative religious choices and options for Chinese communities.  This has resulted in a ‘tripartite religious market’, as described in the work of Fenggang Yang.  Through Yang’s work, we can understand China as maintaining a religious marketplace which looks dissimilar to that of North America.  By viewing the Chinese market through the lens of rational choice theory, it is clear that religion and religious choice has thrived in China in a new sociological mechanism.
Corporate Social Responsibility ‐ Is it a Viable Tool for Development?
Authors: Nartowski Robert
Published: May 2021

The topic of CSR, or Corporate Social Responsibility, continues to grow in todays political, economical, and social spheres. Despite the fact that CSR is an immense driver for development projects around the world, there is little academic work that evaluates the effects of CSR and makes a judgment on this issue. Firstly, this study will define and organize the broad term of CSR as its meanings range from natural preservation projects to human resource benefits. Through the organization of the term CSR into various categories, one can better understand the complexities and ethical issues surrounding this avenue of funding. Secondly, this study will evaluate the effects of major CSR projects around the world. By examining the political, economical, and social advantages and disadvantages of some of the worlds largest CSR funded projects, a verdict will be made on this issue.
Naming and Indication in The One Secret That Has Carried
Authors: McQuaid Ryan
Published: May 2021

This essay explores the ways in which Foucaldian indication and naming operate as mediums through with truth, sex, and sujectivities communicate in the poem  The CarrieOne Secret That Has Carried by Jason Shinder. The essay examines the position of sexual acts in the poem, and determines that they function as sites of indication from which truth can be procured. These sites of indication operate as privileged spaces of truth within the poem which imply a compulsory body project fro the subject reading them. Self-naming is also explored. The ways that the narrating subject names himself and other spaces/subjects in the poem is examined to elucidate how a healthy/sick binary is generated and how this binary is implemented and enforced in discourse. A theme discussed in connection with these investigations is the pathologizing of the narrating subject of the poem. This discussion centres around what structures inform the subjects reading of himself ans pathologized. As well as how the subject's self-naming operates to effect and consolidate eht epathology to which he is predicated.
ANALISIS FAKTOR KERUGIAN WASTE MATERIAL BESI BETON GEDUNG BERTINGKAT
Authors: Sulistio Hendrik , Wati Mega
Published: May 2021

Material as one of the components that has a contribution of 40-60% of the project cost in the research of Intan et al., 2005. Concrete is currently being studied because it is one of the five materials that affects 80% of material costs.. The purpose of this research is to examine how much the loss of iron concrete material waste and the ranking of the factors that influence it in multi-storey building projects. The research method is by conducting a questionnaire to contractors. The data collection process is carried out by distributing questionnaires in multi-storey building projects in Jakarta. Measuring the value of the questionnaire as many as 64 respondents used the Likert measurement technique. The sequence of data processing, first done by testing the validity and reliability testing. After that, these factors are ranked using the Relative Importance Index method. The result is a loss of Concrete Iron material waste of 7.5% and ratings that affect the loss of concrete are: not planning reinforcement bestat, complicated image detailing, cutting errors due to lack of understanding of work drawings / carelessness, lack of / unclear image information, use of wrong so that it needs to be replaced, the remaining cuts due to the process of use and a design change. Keywords: multi-storey building; reinforcing steel;  waste material AbstrakMaterial sebagai salah satu komponen yang mempunyai kontribusi sebesar 40-60% dari biaya proyek di dalam penelitian Intan et al, 2005.  Besi beton saat ini mau diteliti karena merupakan salah satu dari lima material  mempengaruhi 80% biaya material.  Tujuan penelitian ini meneliti  berapa besar kerugian waste material besi beton dan peringkat faktor faktor yang mempengaruhinya pada proyek bangunan gedung bertingkat . Metode penelitian dengan melakukan kuesioner terhadap kontraktor. Proses pengumpulan data yang dilakukan adalah dengan menyebar kuesioner di proyek bangunan gedung bertingkat yang berada di Jakarta.  Pengukuran nilai kuesioner sebanyak 64 responden  digunakan teknik pengukuran Likert.  Urutan pengolahan data, pertama dilakukan dengan uji validitas dan uji reliabilitas. Setelah itu faktor-faktor tersebut ditentukan  peringkat dengan metode Relative Importance Index. Hasilnya adalah kerugian  waste material Besi Beton  sebesar 7,5 % dan peringkat yang mempengaruhi kerugian besi beton  adalah:tidak merencanakan bestat penulangan, pendetailan gambar yang rumit, kesalahan pemotongan karena kurang memahami gambar kerja/kecerobohan,informasi gambar kurang/tidak jelas, penggunaan material yang salah sehingga perlu diganti, sisa pemotongan karena proses pemakaian dan adanya perubahan desain.
ALTERNATIF UJI BEBAN PADA STRUKTUR (STUDI KASUS : JEMBATAN BAJA)
Authors: Soleh Chairul , Rastandi Josia Irwan
Published: May 2021

The most common structural load test that has been widely used is the static load test. An alternative to the structural load test is dynamic load test. Dynamic testing is a test carried out to determine level of structural stiffness or structural elements stiffness in the form of natural frequencies, while the static load test is intended to obtain responses of static loading from the structure in the form of deflection. The discussion will emphasize the correlation between static load test and dynamic load test. To correlate the static load test with the vibration test, a reference or value that comes from modeling or theoretical analysis is needed. Structural modeling is carried out to obtain the theoretical natural frequency and the theoretical deflection which will then be compared with the natural frequency of the vibration test (dynamic). If the frequency of the test results and the theoretical frequency are compared to the theoretical deflection, the prediction of the test deflection will be obtained. The correlation between the predicted deflection of the test and deflection of the static load test is quite close with a difference of less than 12%. Judging from the above correlation, periodic inspections of the tested structures can be considered for vibration testing only. The types of structures reviewed are simple span steel bridge structure, simple span + link slab steel bridge structure and continuous span steel bridge structure. Keywords: modeling; natural frequencies; vibration testing; static load test  AbstrakUji beban struktur yang umum dan sudah banyak dilakukan adalah uji beban statik. Alternatif lain dari uji beban adalah dengan melakukan pengujian vibrasi (dinamik) pada struktur. Pengujian vibrasi (dinamik) dilakukan untuk mengetahui tingkat kekakuan struktur atau elemen struktur berupa frekuensi alami, sedangkan uji beban statik dimaksudkan untuk mendapatkan respons hasil pembebanan statik dari struktur berupa lendutan. Pembahasan akan menekankan kepada korelasi antara uji beban statik dan uji beban vibrasi (dinamik). Untuk mengkorelasikan pengujian beban statik terhadap pengujian vibrasi (dinamik) diperlukan suatu acuan atau nilai yang berasal dari analisa pemodelan atau teoritis. Pemodelan struktur dilakukan untuk mendapatkan frekuensi alami secara teoritis dan lendutan teoritis yang kemudian akan dibandingkan dengan frekuensi alami hasil uji vibrasi (dinamik).  Jika frekuensi hasil uji dan frekuensi teoritis dibandingkan terhadap lendutan teoritis maka akan didapatkan prediksi lendutan uji. Hasil korelasi antara prediksi lendutan uji terhadap lendutan uji beban statik cukup mendekati dengan perbedaan kurang dari 12%. Dilihat dari korelasi diatas, maka untuk pemeriksaan berkala pada struktur yang telah diuji dapat dipertimbangkan untuk dilakukan pengujian vibrasi saja. Jenis struktur yang ditinjau adalah struktur jembatan baja simple span, simple span + link slab dan continuous span.
ANALISIS KECEPATAN JATUH SEDIMEN PADA SUNGAI CIBEET, JAWA BARAT
Authors: Warsito Kevin Wijaya , Pranoto Wati Astriningsih
Published: May 2021

Cibeet River is one of the branch of the Citarum river in West Java province with a length of 101 km. Cibeet River is one of the rivers supplying water and sediment to the West Tarum irrigation channel or known as the Kalimalang. In this research, the sample used was in the form of mud taken at the Cibeet River Estuary. This research is focused on settling velocity which is a parameter for sedimentation in order to improve numerical modeling and conceptual understanding of sediment dynamics, especially mud. Sediment research is carried out in the Soil Mechanics laboratory and Hydraulics laboratory. Bottom withdrawal tube experiments were carried out using 5 types of salinity and 6 kinds of sediment concentrations. The purpose of the study was to obtain settling velocity and compare laboratory results with the Stokes law approach and compare the relationship between settling velocity with sediment concentration and salinity. The optimum salinity is obtained at 15 ‰, and the optimum sediment concentration at 4700 ppm with an average fall speed of 37,28 mm / s. The results from the laboratory are not in accordance with the Stokes law due to the influence of flocculation from the cohesive nature of the mud sediment, so that using the Stokes law approach cannot calculate the velocity of falling sediment on the mud. Keywords: concentration; salinity; sediment; settling velocity AbstrakSungai Cibeet merupakan salah satu anak sungai dari sungai Citarum di provinsi Jawa Barat dengan panjang 101 km. Sungai Cibeet merupakan salah satu sungai pemasok air dan sedimen ke saluran irigasi Tarum Barat atau dikenal sebagai Kalimalang. Pada penelitian ini, sampel yang digunakan berupa lumpur yang diambil di Muara Sungai Cibeet. Penelitian ini difokuskan pada kecepatan jatuh sedimen yang merupakan parameter untuk sedimentasi demi meningkatkan permodelan numerik dan pemahaman konsep dari dinamika sedimen terutama lumpur.  Penelitian ini dilakukan di laboratorium Mekanika Tanah dan laboratorium Hidrolika, memakai bottom withdrawal tube, dilakukan dengan menggunakan 5 macam jenis salinitas dan 6 macam konsentrasi sedimen.  Penelitian ini membandingkan antara hasil laboratorium dengan pendekatan yaitu hukum Stokes serta membandingkan hubungan antara konsentrasi sedimen dengan salinitas. Untuk salinitas didapat optimum pada saat 15‰, dan konsentrasi sedimen yang optimum pada saat 4700 ppm dengan kecepatan jatuh rata-rata 37,28 mm/s. Hasil dari laboratorium tidak sesuai dengan pendekatan hukum stokes dikarenakan adanya pengaruh flokulasi dari sifat sedimen lumpur yang kohesif, sehingga menggunakan pendekatan hukum stokes tidak bisa untuk menghitung kecepatan jatuh sedimen pada lumpur.
MODELISASI ANALISIS NUMERIK GAYA LATERAL PADA ELEVATED REINFORCED CONCRETE PILE CAP PADA TANAH NON KOHESIF
Authors: Lo Alvin , Wijaya Hendy , Yuwono Amelia
Published: May 2021

Bridges are construction structures that are built to connect parts of the road that are cut off by obstacles such as deep valleys, irrigation channel paths. In order to build a bridge, a strong, economical and easy to build foundation is needed to carry gravity loads and also earthquake force. A common problem encountered in bridge foundation is the occurrence of erosion around the piles due to scouring of water which causes exposing some portion of the piles, which are often referred as elevated reinforced concrete pile-cap foundations. In this study, a numerical analysis of pile groups on elevated reinforced concrete pile-cap foundations is carried out with lateral forces on sandy soil to see the ductility behavior of piles using geotechnical-based programs and to compare the results with the previous studies. The analysis includes the pilecap model and the soil-to-pile interaction and also considers the pile group effect. The analysis was carried out to see the structural and geotechnical conditions on the ductility behavior of a partially embedded piles on sandy soil. The result obtained is a comparison of the ductility and overstrength values that can be used as a consideration in designing elevated reinforced concrete pile-cap foundations.Keywords: Elevated RC pile-cap foundations; numerical analysis; lateral force; ductility AbstrakJembatan adalah struktur konstruksi yang dibangun untuk menghubungkan bagian jalan yang terputus oleh rintangan-rintangan seperti lembah yang dalam, alur saluran irigasi. Untuk membangun sebuah jembatan, diperlukan fondasi yang kuat, ekonomis dan mudah untuk dibangun untuk memikul beban dari jembatan dan juga gaya gempa. Masalah yang umum ditemui pada konstruksi fondasi jembatan adalah terjadinya erosi pada sekitar fondasi dikarenakan gerusan air yang menyebabkan tanah terangkat dan memperlihatkan sebagian tiang fondasi, yang sering disebut dengan elevated reinforced concrete pile-cap foundations. Pada penelitian ini dilakukan analisis secara numerik terhadap kelompok tiang pada elevated reinforced concrete pile-cap foundations yang dibebani gaya lateral pada tanah berpasir untuk melihat perilaku daktilitas tiang dengan bantuan program berbasis geoteknik dan membandingkan dengan hasil penelitian terdahulu. Analisis menyertakan model kepala tiang dan hubungan antara tanah dengan tiang serta mempertimbangkan efek kelompok tiang. Analisis dilakukan untuk melihat kondisi struktural dan geoteknikal pada perilaku daktilitas fondasi yang ditanam sebagian pada tanah pasir. Hasil yang didapatkan adalah perbandingan nilai daktilitas dan overstrength yang dapat digunakan sebagai pertimbangan dalam mendesain elevated reinforced concrete pile-cap foundations.
AUDIT KESELAMATAN JALAN TOL TANGERANG - MERAK
Authors: Setyarini Ni Luh Putu Shinta Eka , Virgantara Michael Gani
Published: May 2021

Tangerang-Merak Toll Road is a toll road connecting Tangerang and Merak Port, which includes Cikupa Toll Road, East Balaraja, West Balaraja, Ciakande, Ciujung, East Serang, West Serang, East Cilegon, West Cilegon, and Merak. With the more congested, will make the risk of car accidents also increased. In an effort to improve of road safety, especially toll roads, a Road Safety Audit (AKJ) is needed. Aspects examined and observed include geometric, traffic management, pavements, street furnitures and complementary buildings. As a result, it is concluded that in geometric aspect, in general has been designed in accordance with the provisions, but nevertheless there are parts that still require improvement. This research will discussed the existing condition of Tangerang-Merak Toll Road based on direct observation. The aspects reviewed are geometric, pavement, street furnitures and road complementary buildings such as Signs, Markings and Median roads. In the end, accident-prone areas will be obtained on tangerang-merak toll road with a comparison analysis of direct observation data, and traffic accident data. Keywords: Toll Road; Street funitures; Accident Prone Areas; Road Safety AuditAbstrakJalan Tol Tangerang-Merak adalah jalan tol yang menghubungkan Kota Tangerang dan Pelabuhan Merak yang mencakup Tol Cikupa, Balaraja Timur, Balaraja Barat, Ciakande, Ciujung, Serang Timur, Serang Barat, Cilegon Timur, Cilegon Barat, dan Merak. Dengan semakin padatnya ruas jalan tol tersebut akan membuat angka risiko kecelakaan mobil juga semakin meningkat. Dalam upaya meningkatkan keselamatan para pengguna jalan, khususnya jalan tol, maka perlu dilaksanakan Audit Keselamatan Jalan (AKJ). Aspek yang diperiksa dan diamati meliputi aspek geometrik jalan, manajemen lalu lintas, perkerasan, bangunan pelengkap jalan dan perlengkapan jalan. Sebagai hasilnya, diperoleh kesimpulan bahwa dari segi geometrik, secara umum jalan sudah dirancang sesuai dengan ketentuan, namun demikian ada bagian-bagian yang masih memerlukan penyempurnaan. Penelitian ini akan membahas kondisi eksisting jalan Tol Tangerang-Merak berdasarkan pengamatan langsung. Aspek yang ditinjau adalah aspek geometrik, perkerasan, dan bangunan pelengkap jalan seperti Rambu, Marka dan Median jalan. Pada akhirnya, akan didapatkan daerah rawan kecelakaan pada ruas tol Tangerang-Merak dengan analisis perbandingan dari data pengamatan langsung, dan data kecelakaan lalu lintas.
Sentiment Analysis Approach for Analyzing iPhone Release using Support Vector Machine
Authors: Bourequat Wasim , Mourad Hassan
Published: May 2021

Sentiment analysis is a process of understanding, extracting, and processing textual data automatically to get sentiment information contained in a comment sentence on Twitter. Sentiment analysis needs to be done because the use of social media in society is increasing so that it affects the development of public opinion. Therefore, it can be used to analyze public opinion by applying data science, one of which is Natural Language Processing (NLP) and Text Mining or also known as text analytics. The stages of the overall method used in this study are to do text mining on the Twitter site regarding iPhone Release with methods of scraping, labeling, preprocessing (case folding, tokenization, filtering), TF-IDF, and classification of sentiments using the Support Vector Machine. The Support Vector Machine is widely used as a baseline in text-related tasks with satisfactory results, on several evaluation matrices such as accuracy, precision, recall, and F1 score yielding 89.21%, 92.43%, 95.53%, and 93.95, respectively.
An Assessment of Factors Affecting Absenteeism: Case Study of a Major South African Manufacturer
Authors: Gutsa Lewisham , Luke Rosemary-Jane
Published: May 2021

Absenteeism is a major problem globally and, in South Africa, costs the country and companies millions of rands each year. Given the financial constraints on businesses at present, it is necessary to understand the causes of absenteeism in order to determine possible interventions to reduce these causes. A quantitative research design was used to investigate the factors that influence absenteeism at a major South African manufacturer. An exploratory factor analysis was used to reduce the number of factors. The study found that there were seven major factors that had an impact on absenteeism, namely, external factors, management factors, illness, family responsibilities, personal development, working conditions, and motivation. These factors were found to affect different employees differently, and were mainly dependent on the demographic characteristics of the employees. This study provides insights into absenteeism in a typical South African situation. The study finds that because factors that have an impact on absenteeism are different for various employees and are dependent largely on demographic and related attributes, organisations need to develop diverse strategies to deal with the absenteeism issues of different employees in organisations. Future research should investigate the efficacies of various interventions to determine which are most likely to meet the needs of the various groups of employees and thereby reduce absenteeism levels.
The Effect of Marital Training Courses on Family Stability – An Applied Study in The City of Buraydah –: أثر الدورات التدريبيّة التأهيليّة للزواج على الاستقرار الأسريّ – دراسةٌ تطبيقيّةٌ في مدينة بريدة –
Authors: Aisha Abdallah Alrasheed
Published: May 2021

The study aimed to identify the effect of rehabilitation training courses for marriage and its relationship to achieve family stability from social side, economic side, and legal jurisprudence side. Also, it aimed to identify the effect of some independent variables which contain the number of sons, the possibility to get a job, and the level of income for the family. To achieve this, the study is based on the comparative descriptive approach, and the questionnaire method was used to collect data. The study was applied, in Ossrah Association, Buraydah, to a random sample of (644) wives, married women of pre-marital rehabilitation training courses on family stability, and married women who did not have pre-training rehabilitation training courses on family stability. The data were processed by using statistical tests (frequency, percentage, difference test, T-T test, and the predicative analytical factor). In light of the assumptions of the explained theory, the study revealed several results: The assumptions of the social behavioral theory were appropriate to explain the effect of rehabilitation training courses for marriage on family stability. Therefore, the study is based on understanding the nature of family stability and its relationship with rehabilitation training courses for marriage. The contribution of the rehabilitation courses for marriage demonstrates the social family stability, and this was evident in concern with the value of the arithmetic average in the majority of the sub-indices in favor of the wives who got the rehabilitation training courses for marriage. On the other hand, it was also evident that the contribution of rehabilitation training courses for marriage did not contribute to economic family stability, as well as, this was evident in concern with the value of the average arithmetic in the majority of sub-indices in favor of wives who did not receive rehabilitation training courses for marriage.
Methods of reducing the obstacles facing families of Quadriplegia patients from the viewpoint of families and social workers: أساليب الحد من المعوقات التي تواجه أسر ذوي الشلل الرباعي من وجهة نظر الأسر والأخصائيين الاجتماعيين
Authors: Waleed Abdullah Alsaloom
Published: May 2021

The study aimed to know the methods of reducing the obstacles facing the families of quadriplegic patients in the Kingdom of Saudi Arabia from their point of view and from the point of view of social workers. To achieve the goal of the study, the researcher used the Social Survey Methodology, and the study sample consisted of (120) of the families of quadriplegic patients, in addition to (70) social workers, and the researcher used the questionnaire as a study tool. The results of the study showed that the families of those with quadriplegia agree to methods of reducing obstacles that confront them with an average of (4.08) and that the most important of these methods are as follows: Increasing the social worker’s awareness of the professional intervention methods during the crisis, the need for the social worker to understand the tasks that he must perform towards the families of quadriplegic patients, educating the families of the importance of the social worker’s intervention and revealing the problems they face, especially social and economic, providing training courses for the specialist on support methods for families of quadriplegia patients. The results of the study also showed the approval of the social workers on methods to reduce the obstacles facing families of quadriplegia patients with an average of (4.04), and the most important of these methods are the following: Increased awareness of the social worker with methods of professional intervention during the crisis, the need for the social worker to understand the tasks that he must perform towards the families of quadriplegic patients, Sensitizing families on the importance of social worker intervention and revealing problems they face, especially social and economic, providing training courses for the specialist on methods of support for families of quadriplegia patients.
حُكم تغطية قدمَي المرأة في الصلاة – دراسة فقهيّة مُقارنة –
Authors: رمضان هدى محمد
Published: May 2021

هدف هذا البحث إلى بيان حكم تغطية قدم المرأة في الصلاة، من خلال منهج وصفي تحليلي؛ وهي مسألة قديمة حديثة، فالقديم أن العلماء تناولوا المسألة واختلفوا فيها بحسب زمانهم، وطبقا لأحوالهم، والحديث فيها: ما حدث من تغيرات طرأت على حياة المرأة من اختلاف الزي، والاختلاط، والخروج من المنزل لساعات طويلة، قد تفوتها الصلوات إذا لم تصلها في المكان الموجودة فيه. وقد بينت في هذا البحث من خلال دراسة فقهية مقارنة بين المذاهب الأربعة أدلة وآراء العلماء، بين مؤيد لكشف القدم، ومانع من كشفها. وتمت مناقشة هذه الآراء، بعد تمحيص أدلتها من حيث صحة الدليل من جهة، وقوة الاستدلال من جهة أخرى، وقد ظهر من خلال البحث أن لكل فرقة من العلماء أدلة بنت عليها موقفها، كما ظهر أن الخلاف موجود في هذه المسألة داخل المذهب الواحد، فمنهم من أعطى الأولوية لحاجة المرأة للكشف، وآخرون أعطوا الأولوية لظواهر النصوص المانعة من الكشف، وبعد مناقشة الأقوال، وتمحيص أدلتها وقوة استدلالها، تبين للباحثة مدى قوة قول الجمهور، وهو ضرورة تغطية القدمين في الصلاة، وعدّهما من العورة.
حكم بيع الدين بالدين في الشريعة الإسلامية – دراسة فقهية مقارنة –
Authors: إدريس عبد الله علي
Published: May 2021

تناول الباحث موضوع "بيع الدين بالدين" دراسة فقهية، وذلك من خلال جمع آراء الفقهاء وأدلتهم والشبهات حولها، وبيان رأي كثير من الفقهاء المعاصرين بجواز بيع الدين بالدين وأدلتهم ومناقشتها والرد عليها. وخلص البحث إلى بطلان قول المعاصرين بجوازه، لمخالفته لإجماع الفقهاء على حرمته، وبطلان استدلالاتهم وعدم نهوضها لمخالفة أدلة الفقهاء وإجماعهم على حرمة بيع الدين بالدين. ومن ثم بيان أوجه الحكمة من حرمة بيع الدين بالدين، من حيث علاقته بالقمار، ووجود الغرر، وشغل ذمم العاقدين دون فائدة ولا منفعة، ومخالفة هذا البيع للمقصود الشرعي الأساس من العقود، وهو القبض.
Challenges and opportunities for women working in the Jordanian tourism sector: Umm Sayhoun as a model: التحديات والفرص للنساء العاملات في القطاع السياحي الأردني، منطقة أم صيحون أنموذجا
Authors: Saleh Mohammad Ali Abu Taweelih
Published: May 2021

The aim of the study is to unravel the challenges faced by women who work in the tourism sector, in the Umm Sayhoun area of the Petra District in southern Jordan, as well as, to identify the opportunities and resources, and the ways, by the help of which, they can reach them. The study used the Qualitative Feminist Approach/case study. And it benefited from the approach of the concept of social marginalization. And it used in-depth interview tools, non-participating observation, and focus groups. The results of the study discovered the most important challenges, namely: The inability to get involved into the formal economy, the racial discrimination, the seasonality of tourism, poor infrastructure, the weakness of skills and cognitive abilities. And the study shows the most prominent opportunities which are; Political empowerment, tourism product development, establishing local partnerships.