bluuebunny/crossref_metadata_2025 huggingface dataset:
An oenochoe with Gnathia decoration in the National Museum of Transylvanian History
Authors:   Muzeul Național de Istorie a Transilvaniei, Popescu Mariana Cristina
Published: March 2022

An oenochoe with Gnathia decoration, part of the collection of the National Museum of Transylvanian History is here published. Judging by its style, the vase is part of the Alexandria group. The vessels specific to this group are mainly produced in the workshops of Taranto, during the first half of the 3rd century BC. The vessel from the Cluj museum has characteristic ribbing arranged in two vertical registers, on the whole surface of the body and the decoration with stylised geometric and plant motifs, depicted on the neck and in the middle and upper area of the body.
Sacidava and Burticum. On a road bifurcation from Dacia Superior
Authors:   Universitatea Babeș-Bolyai, Cluj-Napoca, Nemeti Sorin
Published: March 2022

"Some of the toponyms conveyed by the Cosmography of the Anonymous Geographer of Ravenna are levied by modern critics either corrupt, or, simply, made-up. This is also the case of the toponym from central Dacia, Burticum, believed a double for Brutia (Rav. Cosm., 4.7, namely, the corrupt form of the same Brucla mentioned by the Tabula Peutingeriana, TP 8.2). Compiling the information from two itineraria, Tabula Peutingeriana and the Cosmography of the Anonymous Geographer of Ravenna, shows there were two access routes linking the road on the Olt river valley to the imperial road from central Dacia superior. From Caput Stenarum (Boiţa, Sibiu County), the road climbs to Cedonia (Guşteriţa, Sibiu County) where it bifurcates. The northern branch, described by Tabula Peutingeriana, ran from Cedonia to Sacidava (site La Zid between Doştat and Spring, Alba County) and reached Apulum (Alba Iulia, Alba County). The southern branch, recorded by the Anonymous Geographer of Ravenna, ran from Cedonia to Burticum (the mansio from Miercurea-Băi, Albele), intersecting the imperial road at Blandiana (Şibot or Vinţu de Jos, Alba County). "
Dona militaria. A bronze phalera discovered at Sânpaul (Cluj County)
Authors:   Muzeul Național de Istorie a Transilvaniei, Nemeti Irina
Published: March 2022

This study presents a recently discovered artefact nearby Sânpaul, Cluj County. It is a silvered bronze‑made disc decorated with the image of Gorgon‑Medusa. We identified the artefact as a phalera, one of the military decorations awarded in the Roman army. This type of dona militaria is rather less frequently recorded by archaeological finds, especially in the Dacia province, the find of Sânpaul thus adding to the repertory of known exemplars. Furthermore, the repertory of reported Roman date archaeological heritage sites in respective area is thus enriched.
Pengaruh Model CORE Terhadap Kemampuan Koneksi Matematika dan Keterampilan Kinerja Proses Peserta Didik
Authors: Suprapto Nunuk Sulistyaningrum
Published: March 2022

The problem that aries in mathematiecs learning is the lack of students’ mathematical connection skills in elementary school. The reason for this is that the teacher only teaches students with an expository approach and rarely gives mathematical pproblems related to student life. Thus one of the efforts to improve the ability of mathematical connections is to emphasize the learning of mathematical into student’s daily lives. One model that support this is connecting, organizing, reflecting, extending (CORE) because this model has the characteristics of associating students concepts with new concepts so that they can overcome the problems of students who have not linked mathematical concepts with other mathematical concepts or with daily life day.Masalah yang sering kali muncul  dalam pembelajaran matematika adalah kurangnya kemampuan peserta didik dalam koneksi matematis peserta didik di tingkat sekolah dasar. Penyebabnya yaitu guru sering kali hanya mengajarkan peserta didik dengan pendekatan ekspositori dan jarang memberikan soal matematika yang berkaitan dengan kehidupan[eserta didik. Oleh  karena itu  salah satu upaya untuk meningkatkan kemampuan koneksi matematis adalah dengan menekankan pembelajaran matematika ke dalam kehidupan sehari-hari. Salah satu model yang mendukung hal ini adalah Connecting, Organizing, Reflecting, Extending (CORE) karena model ini mempunyai karakteristik yang mengaitkan konsep yang sudah dimiliki peserta didik dengan konsep yang baru, sehingga dapat megatasi permasalahan peserta didik yang belum mengaitkan konsep matematika dengan konsep matematika lain maupun dengan kehidupan sehari-hari.
Upaya Penggunaan Model Pembelajaran Jarak Jauh Untuk Meningkatkan Aspek Spiritual Siswa SD 2 Medini
Authors: Rosmayanti Ervi
Published: March 2022

In the era of the Covid-19 virus pandemic, all educational services are expected to be taught at home. To overcome this problem, the teacher is anticipating online learning, using a distance learning model. So that students at home can still study. This study aims to determine the efforts to use distance learning models to improve the spiritual aspects of SD 2 Medini students amid the Covid-19 pandemic. This research method uses qualitative methods with the subjects of this study, namely students of class VI SD 2 Medini, Kudus. The results of this study were the implementation of the class VI distance learning model at SD 2 Medini using the WhatsApp application. The obstacles experienced include a commitment from parents and students and students are not consistent with their lesson schedules. Spiritual aspects of distance learning that can be applied in SD 2 Medini include appreciating and living up to the religious teachings that are adhered to. Praying before and after doing something and carrying out worship on timePada era pandemi virus covid-19 ini, semua layanan pendidikan diharapkan belajarkan dirumah. Untuk mengatasi hal tersebut maka guru mensiasati belajar online, dengan menggunakan model pembelajaran jarak jauh. Agar siswa dirumah tetap bisa belajar. Penelitian ini bertujuan untuk mengetahui upaya penggunaan model pembelajaran jarak jauh untuk meningkatkan aspek spiritual siswa SD 2 medini ditengah pandemi covid-19. Metode penelitian ini menggunakan metode kualitatif dengan subyek penelitian ini yaitu siswa kelas VI SD 2 Medini, Kudus. Hasil penelitian ini yaitu pelaksanaan model pembelajaran jarak jauh kelas VI di SD 2 Medini menggunakan aplikasi whatsApp. Hambatan yang dialami diantaranya komitmen dari orang tua dan siswa itu dan siswa tidak konsisten terhadap jadwal pelajarannya. Aspek spiritual dalam pembelajaran jarak jauh yang dapat diterapkan di SD 2 Medini diantaranya menghargai dan menghayati ajaran agama yang dianut Berdoa sebelum dan sesudah menjalankan sesuatu dan Menjalankan ibadah tepat waktu.
Diurnal variation of enhancement of sudden fluctuations in H in the region of the Indian magnetic equator
Authors: YACOB A. , KHANNA K. B.
Published: March 2022

For the Indian region of the magnetic equator the diurnal variation of enhancement of amplitudes of sudden impulses and fluctuations of development time less than 10 minutes is studied with the observations at Trivandrum, Annamalain8gar and Alibag for the period of I.G.Y. and I.G.C. The expected day-time enhancements at Trivandrum and Annamalainagar are found and to exist, but the diurnal variation of the enhancements does not exactly follow the Sq (H) trend. Nor do the magnitudes of the enhancements for the different hours of the day strictly correspond to enhancements in Sq (H) hourly inequalities, as derived from the night level.. During the night hours there is definitely no enhancement of fluctuations close to the Indian magnetic equator. Actually night-time fluctuations at Annamalainagar are a little larger than those at Trivandrum (station closest to the magnetic equator) and Alibag. Night-time enhancements of fluctuations near the Nigerian and South American magnetic equator found by Onwumechilli and Ogbuehi (1962) are not seen for the region of the Indian magnetic equator. The difference is attributed to differences in the internal electrical conductivities at the different localities.
Rainfall persistence in India during May-October
Authors: SRINIVASAN T. R.
Published: March 2022

For the purposes of long term planning for storage and conservation of water the Damodar Valley Corporation engineers wanted a long range forecast of monsoon rainfall in respect of the different catchments of the river Damodar. The problem was studied by correlation method and an attempt was made to forecast the June-September and June-July rainfall in the catchment areas by means of regression equation
Monsoon Definitions
Authors: RAMAN C. R. V.
Published: March 2022

While mariners have, for long, associated monsoon with winds, description of monsoonal circulations over land has invariably been designed to explain primarily their rainfall effects. A rainfall oriented definition of monsoon bas several limitations. An attempt has been made in this presentation to define monsoon by some consistent low level circulation feature which will have universal application, irrespective of place and time.
Evolution and Trends in Male Versus Female Authorship of Articles in Flagship Orthopaedic Journals From 1995 to 2020
Authors: Powell Sarah N. , Hunting John C. , Frazier Landon P. , Keeling Laura E. , Janowski Jessie
Published: March 2022

Introduction:

The gender disparity in orthopaedic surgery has been recognized for many years. Because research affects promotions, this study investigates trends in female authorship in three journals over the past 25 years for both first and senior authors.

Methods:

All articles from Journal of Bone and Joint Surgery, Journal of the American Academy of Orthopaedic Surgeons, and Clinical Orthopaedics and Related Research from 1995 to 2020 in 5-year intervals were downloaded, and the data for first and senior authors were extracted. The sex of the first and senior authors was determined using the validated Genderize algorithm. The demographics of the first and senior author cohorts were analyzed using chi square tests. The trends in female authorship controlling for year and journal were assessed with logistic regression models.

Results:

Within the studied journals, 5,636 individuals were identified as first authors and 4,572 as senior authors. Sex was determined for 82.59% of the authors. Female first authorship increased significantly from 1995 to 2020 (6.70% to 15.37%, P < 0.001). Similarly, female senior authorship increased significantly from 1995 to 2020 (8.22% to 13.65%, P < 0.001). Overall, there was no significant difference in gender composition of authors between journals (P = 0.700 first author and P = 0.098 senior author). Women were much more likely to publish as first or senior author in later years, regardless of the journal (P < 0.001 first author and P < 0.001 senior author).

Discussion:

Female authorship in prominent orthopaedic journals has increased markedly from 1995 to 2020 with interjournal differences in senior author gender disparity. Although female orthopaedic surgeons publish at rates equal to or greater than their representation in the specialty, additional research is needed into the persistence of gender disparities in orthopaedics.
An Empirical Analysis of Export Competitiveness and Comparative Advantage of Pakistan’s Fruit Products
Authors: Maqbool Shahid , Atiq-ur-Rehman Muhammad , Khushbakht Maria , Bashir Furrukh
Published: March 2022

This study evaluates the global competitiveness of Pakistan's fruit exports for the period 2003-2019. The comparative advantage and competitiveness of fruit exports of Pakistan are examined by employing revealed comparative advantage (RCA), revealed symmetric comparative advantage' (RSCA), relative import advantage (RMA), relative trade advantage (RTA), Trade Balance Index (TBI) and Revealed Competitiveness Index (RC). The empirical findings illustrate that Pakistan had a comparative and competitive advantage in fruit exports during the period under consideration. The global competitiveness of Pakistan in the fruit exports indicates that there exists much potential for the growth of the horticultural sector. With government patronage and proper facilities, the fruit products can be a source of valuable foreign exchange earnings for the Pakistan economy.
Can Psychological Empowerment and Ethical Leadership Empower Nurses Psychologically and Ethically In The Power-Distance Culture Of Pakistan?
Authors: Irfan Kaleem Ullah , Islam Talat
Published: March 2022

The study aims to investigate ethical leadership's impact on employee's leave intention. The study proposes a moderating mediation model examining ethical leadership's (EL) impact on leave intention (LI) through the mediation of occupational commitment (OC) and moderation of psychological empowerment (PE). Survey-based questionnaires were distributed among 600 nursing staff of three big cities of Punjab, Pakistan. SEM was applied for the results that revealed a positive association between EL and LI. In addition, findings suggested strong mediation of occupational commitment between ethical leadership and leave intention and moderation of psychological empowerment between EL and OC. Overall, this study was an attempt to encourage commitment among Pakistan's nursing staff in this pandemic covid-19 situation.
Advanced Password Stealers
Authors: Tariq Muhammad Arslan
Published: March 2022

People have access to everything available online and uses services given by others that also brings a great amount of risks. Everyone has something which is valuable to him, he wants to keep it private from others and uses password to protect it. A Password may be of any kind. But there are also some people who are intruders and wants to steal others passwords for different purposes. This research paper is regarding the study of password hackers/stealers. Let’s discuss about the passwords Stealers types malicious persistent programs and key loggers. some embedded drivers with these programs and some case scenarios where hackers have been successful in stealing information, even now a days where modern world has done tremendous achievement regarding information security issue why these hackers have been so successful? In this paper, we will also share some tips to save ourselves from such hackers and in this paper, we will try to clarify the difference between spyware key loggers and other password stealers.
Forensics Analysis of Typewriter and Typewritten Documents
Authors: Fatima Fatima
Published: March 2022

This article reviews the forensic examination of the typewriter and typewritten documents. The main purpose of examination is to identify the source or origin of the typewritten documents or the link between two typescripts that can be vital to a court of law. Immense application of the typewriter increased the production of fraudulent documents for deceit. Typewritten documents are examined using scientific methods based on class and individual characteristics. These are physical and chemical methods of observation and comparison.
A Literature Review of 2D Face Recognition Systems: Attacks and Defenses
Authors: Malik Muhammad Shairoze Malik
Published: March 2022

Abstract:

In a world where biometric identification and authentication is increasingly growing, it is critical for IT Security personnel to have an understanding of how these systems they use work, and weaknesses that lay with them. Face recognition is a very common form of biometric identification and authentication, where the face of the user is used to both identify and authenticate the user. This paper serves as a literature review for a preliminary understanding of face recognition systems. First the basics of how a facial recognition system works is reviewed. After this, selected articles demonstrating a variety of facial recognition spoofing attacks are summarized to demonstrate the attack surface. This is then followed by a review of studies conducted for defenses against these attacks, focusing primarily on the key concepts used to help identify spoofing attempts. This paper then concludes by summarizing the findings, and explaining the importance of understanding these different aspects of facial recognition from a business perspective.
The effect of psychological endurance exercises on developing the skills of serving and spoiling with volleyball for cups players
Authors: Dr. Ali Jawad Khalaf
Published: March 2022

The importance of research is evident in providing psychological preparation requirements, including psychological endurance exercises, volleyball, as well as developing scientific information to identify the concept of nose endurance and the effect of its exercises on the development of offensive skill performance. the players. The objectives of the research 1-were the preparation of psychological endurance exercises in teaching and developing the skills of serving and crushing volley ball.2-Identify the effect of psychological endurance training on teaching and developing the skills of serving and spiking volley ball. The most important conclusions:1- The use of psychological endurance exercises is important and essential to raise the level of taskand basic to raise the level of performance of the skills of spiking and spiking volley ball for beginners.2- Training for young age group is essential for raising the level of psychological endurance early and the player’s ability to apply difficult skillful performance as well as informing the skills of spiking and spiking with volley ball. It was recommended to:Adopt1- psychological endurance exercises in training ,as they are important and essential to raise the level of performance of the skills of spiking and spiking with volley ball.2-Emphasis on training for age groups as they are essential in order to raise confidence and the players ability to apply difficult skillful performance as well as the performance of the two skills of crushing and spoiling with volleyball.
Organizational performance of the sports activity supervisors in the Director of the Verses of Education throughout Iraq except Kurdistan region
Authors: Teeba Hashim Adham  , Dr. Nihad Mohammed Alwan
Published: March 2022

The research problem was represented by the lack of interest in the organizational performance of the supervisors of the activity. Adultery in the education directorates, as it represents the final result and the outcome achieved by the school sports people, which like to be on a high degree of efficiency, effectiveness and creativity.  The case and the research community is referring to the technical supervisors in the school sport divisions throughout Iraq intentionally Kurdistan Region. The two researchers have built the organizational performance scale in a way that matches the specificity of the research problem and its sample.  Statistical results (spss) The results of the organizational creativity axis appeared in the first order in the axes of the organizational performance scale, Walid Al-Ghayia Medical, and after him the natural competence in a way that shows the importance of the organizational performance of the miniature in general and the school sport in particular
Leadership theories in management and psychologist educational filed
Authors: Jawoosh Hayder Nazar , Hatem Abeer Dakhil , ABDUL RAZAK MOHDRADZANI , MAZINHADIKZAR
Published: March 2022

All domains in this world built based on set of theories. Those theories have been responsible for interpretation of some phenomena and interlocking relationships around us. Commonly, theories are categorized by which aspect is believed. Also,can find a group of theories produced regardingto the leadership domain. This paper will be presented some of these theories like (Great Man Theory, Trait Theory, Behavioral Theories, Contingency Theories, Situational Theory, Transactional Theories, and Transformational Theories). where these theories considered the most popular and common in the field of leader and will be discussed by this work
DINAMIKA SISTEM KEBIJAKAN PENDIDIKAN BAHASA INDONESIA DAN IMPLEMENTASINYA DALAM PEMBELAJARAN DI KELAS
Authors: Hoerudin Cecep Wahyu
Published: March 2022

To be able to develop their potential, humans need education through the learning process. Language is a very important part of education, because of its function as a means of communication and introduction in the world of education. Therefore, policies in language education must be formulated in a comprehensive and visionary manner so that their implementation can be optimized and contribute to realizing the goals of national education. On the other hand, education policies must also accommodate the proportional use of the Indonesian language. This research will be carried out using a qualitative approach and data sourced from various previous studies and studies. The results of this study found that language design as an effort to develop language in a more advanced direction includes three processes, namely design, implementation and evaluation. Indonesian has a position as the National Language and as the State Language.
IMPLEMENTASI KEBIJAKAN PERLINDUNGAN ANAK DI KOTA BANDUNG
Authors: Farhan Ihsanul
Published: March 2022

This research explains how the implementation of the Child Protection Policy in UPTP2TP2a Bandung City. The research method used is a qualitative approach using data collection techniques with in-depth interviews, observation, documentation, and literature studies. The results of the study revealed that the implementation of the child's protection policy by UPT P2TP2A Bandung City was still not optimal. All cases of victims reported can be completed according to child protection procedures, but stabilization of performance is still needed. Therefore, to streamline the implementation of children's judicial procedures both victims and children, doors must open time efficiency and fast service in accordance with the criminal justice system.
THE EFFECT OF LABOR AND WORK SKILLS ON WORK PRODUCTIVITY OF PT MANNA HANNA ENERGI BOGOR WEST JAVA
Authors: Hastuti Widya , Rushadiyati  , Nurminingsih
Published: March 2022

This study aims to examine the effect of labor and work skills on employee productivity at PT Manna Hanna Energi. This research is a type of descriptive quantitative research where the data used in this study are qualitative data. The study population included 60 employees of PT Manna Hanna Energi. Data collection using questionnaires, data analysis techniques used in this study using descriptive statistical analysis while the method of analysis used in this study is PLS (Partial Least Square) using SmartPLS version 3.0.m3. The results showed that Labor has a positive and significant effect on Work Productivity. This shows that the effect of labor on work productivity is significant. Moreover, Labor has a positive and significant effect on Work Skills. This shows that the effect of labor on work skills is significant. Meanwhile, work skills have a positive and significant effect on work productivity. This shows that the influence between Work Skills and Work Productivity is significant.
The Great Recoil: Politics after Populism and the Pandemic
Authors:   European Center for Populism Studies (ECPS), Wolf Maximilian
Published: March 2022

Paolo Gerbaudo’s Great Recoil presents a timely, wide-ranging and perspicacious, yet focused and detail-attentive summary of the present political conjuncture leading up to the Covid-19 pandemic, an incisive prognosis of the political terrain of the years that will follow it and offers a bold new approach to combating the illiberal populist discourse plaguing the West today — while laying the groundwork for the progressive transformations that need to replace it.
Efektivitas Media Presentasi Berbasis Google app Terhadap Hasil Belajar PAI Kelas XI pada Pembelajaran Daring di SMK N 1 Cirebon
Authors: Bunga Roihatul Jannah
Published: March 2022

Sistem pembelajaran yang dilaksanakan di masa pandemi ini peserta didik mengalami hasil belajar yang kurang maksimal, hal ini karena tidak semua peserta didik memiliki media yang dapat menunjang pembelajaran, selain itu juga media pembelajaran yang kurang menarik perhatian peserta didik.Penelitian ini bertujuan untuk mengetahui hasil belajar peserta didik dalam mata pelajaran Pendidikan Agama Islam sebelum menggunakan media aplikasi presentasi berbasis google app di kelas XI SMK N 1 Cirebon, untuk mengetahui hasil belajar peserta didik dalam mata pelajaran Pendidikan Agama Islam sesudah menggunakan media aplikasi presentasi berbasis google app di kelas XI SMK N 1 Cirebon, untuk mengetahui perbedaan hasil belajar Pendidikan Agama Islam  antara sebelum dan sesudah menggunakan media aplikasi presentasi berbasis google app di kelas XI SMK N 1 Cirebon.Metode penelitian yang digunakan dalam penelitian ini yaitu penelitian kuantitatif, dengan jenis penelitian eksperimen dan desain penelitian One Group Pretest Posttest Desain. Teknik pengumpulan data yang digunakan yaitu tes perorangan dengan menggunakan tes dalam bentuk pilihan ganda. Dengan populasi penelitian 200 peserta didik, sampel yang digunakan yaitu 15% atau 30 peserta didik. Hasil penelitian berdasarkan output IBM SPSS 23 nilai Mean Pretest sebesar 60,33 dan nilai Mean Posttest sebesar 66,33.  Hasil Paired Sample Test dengan Output 0,001 atau kurang dari nilai Sig (0,001<0,05) berarti hipotesis asli dapat diterima. Dapat disimpulkan bahwa menggunakan media aplikasi presentasi berbasis google app terhadap hasil belajar pendidikan agama islam kelas XI pada pembelajaran daring di SMK N 1 Cirebon Efektif digunakan.
Economic Growth Analysis and Total Factor Productivity: A Case Study of Morocco, 1999-2019
Authors: El Fakir Ahmed Oulad
Published: March 2022

There is no doubt about the importance of economic growth for raising individuals’ income and country’s wealth. But, this becomes problematic when it does not depend on inputs and depends on something else. This paper aims to address total factor productivity and its interactions with sources of growth with an application to the Moroccan economy.
PERENCANAAN INSTALASI AIR BERSIH DAN AIR LIMBAH PADA GEDUNG CONTINUING PROGRAM DEVELOPMENT UNIVERSITAS NEGERI SURABAYA
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, Rofi Khanif Ainur , Hapsari Ratih Indri ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang, Riskijah Sitti Safiatus ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang
Published: March 2022

Human activity in a building is closely related to the use of clean water. Planning for clean water and wastewater installations at the Continuing Program Development Program Building State University of Surabaya is carried out in order to meet water needs and the disposal process, as well as to estimate the budget. The method used is hydraulic analysis with SNI 03-7065-2005 as standard. The data required are technical specifications, design drawings, designed planning facilities and the Surabaya City HSPK in 2019. The need for clean water is determined using the number of users on each floor of the building. The planning of clean water pipe dimensions uses the Hazen-William method, while the dimensional planning of wastewater pipes and ventilation pipes uses the unit load plumbing method. The results of the calculation of large clean water needs 222.64 m3 / hour; clean water pipe dimensions range ¾ "- 5"; black water pipe diameter 4 "and grey water pipe diameter range 1" - 2 "; vent pipe diameter 2 "and 4"; Plumbing installation planning costs Rp. 2,481,776,832.00.
EVALUATION an RE-PLANNING OF THE URBAN DRAINAGE SYSTEM on JALAN BOROBUDUR - JALAN CANDI TELAGA WANGI MALANG
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, Nadia Shofi , Efendi Medi ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang, Harsanti Winda ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang
Published: March 2022

With the increase in population and development activities, there will be a major impact on surface runoff which causes reduced rainwater catchment areas, particularly on Jl. Borobudur - Jl. Telaga Wangi Temple, Malang City. The purpose of this plan is to calculate the existing discharge capacity, calculate the design flood discharge, and evaluate the dimensions of the drainage channel. To evaluate the urban drainage system on Jl. Borobudur - Jl. Telaga Wangi Temple Malang City data required rainfall data from 3 closest stations, namely Dinoyo, Blimbing and Karangploso for the last 10 years, namely in 2009 - 2018, data on salura dimensions and population data. To calculate the rainfall using the algebraic average method, then to determine the type of distribution using the Pearson log type III method with a 10 year reset and then calculating the design flood discharge using the mononobe method and channel water discharge using the rational method. From the calculation results, the design rainfall is 82,794 mm / day; the largest channel dimensions are 1.1 m wide and 1.1 m high.
STUDI KELAYAKAN TEKNIS DAN FINANSIAL PADA PROYEK APARTEMEN MAHAKARYA TANGERANG SERPONG
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, Dermawan Fandi Achmad , Sumardi Sumardi ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang, Sudarmanto Sudarmanto ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang
Published: March 2022

Apartment Mahakarya Tangerang Serpong located in Jl. Raya Rawa Buntu , RW. Buntu district of Serpong, City of South Tanggerang. This apartment is in that location is the strategies are, that’s very present in the development process is not considered technical and financial analysis. Technical feasibility will be reviewed from the parameters of KDB (building base coefficient), KLB (soil coefficient), KDH (green basic coefficient). Financial eligibility will be reviewed from the parameters of NPV (Net Present Value), BCR (Benefit Cost Ratio), IRR (Internal Rate of Return), and PBP (Pay Back Period). The sensitivity analysis is in review of construction and sales cost increases. Technical feasibility result in a KDB value of 75%, rate KLB result of 16.1491 and for the value OF KDH at 15%, it can be concluded for technical analysis is “qualified” category, for financial feasibility of generating NPV as ;; BCR of 1.031319; IRR by 7%; The PBP for 17 years and 8 months, and the increase or decrease in the income of the project is sensitive to eligibility, so it can be concluded that the project deserves.
PERENCANAAN ULANG SALURAN DRAINASE DAN PENAMBAHAN BANGUNAN RAMAH LINGKUNGAN PADA KAWASAN PEMUKIMAN KECAMATAN XX – KABUPATEN XX
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, AGUSTININGSIH NUNUNG LUTFIYAH , Suhartono Suhartono ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang, Zenurianto Mohammad ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang
Published: March 2022

The problem of inundation in the study area coupled with the available drainage channels is not functioning optimally due to the presence of sediment and the overflow of the Marmoyo river that has been unable to accommodate the flow of water to be the cause of flooding in the area. In this case, it’s necessary to evaluate the existing drainage channel is required by hidrological and hydraulic analysis. Based on the calculation result rainfall design at the time of the 5-year return period is 77.06 mm/day the smallest plan channel dimensions are 0.6 m x 0.3 m and the largest dimensions are 1.60 m x 0.8 m dimensions of the infiltrasion well supporting building with a diameter of 1 m and a depth of 1.5 m. The budget plans is Rp. 9,364,975,000.00. Implementation time of 26 weeks.
STUDI KELAYAKAN TEKNIS DAN FINANSIAL PEMBANGUNAN APARTEMEN ORLIN GRAND SUNGKONO LAGOON SURABAYA
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, Rizqi Faisal , Suhariyanto Suhariyanto ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang, Rasidi Nawir ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang
Published: March 2022

Apartment business is a business carried out by a developer with the aim of obtaining a return on investment. In developing this apartment business, a feasibility study is an important aspect in a construction project in order to see the impact of investment on increasing opinions between the project development plan and the realization after the project is implemented. Grand Sungkono Lagoon Apartment which will be built on an area of ​​4,516 m² with a building area of ​​1,209 m2. Investment in the construction of this project requires a large cost, so it is necessary to do a technical feasibility analysis, financial feasibility analysis and sensitivity analysis to determine the feasibility of this apartment construction project. The required data were of basic design, work unit, and Surabaya HSD 2019. The parameters used for financial feasibility study are Payback Period (PP), Net Present Value (NPV), Internal Rate Return (IRR), and Benefit Cost Ratio (BCR) methods, based on From the results of the technical feasibility study for the Orlin apartment itself obtained KDB of 26.77%, KLB of 14.10%, so the analysis is said to be appropriate to the feasibility parameters. Present Value (NPV), Internal Rate Return (IRR), and Benefit Cost Ratio (BCR). After calculating the financial analysis, the construction of Orlin Apartment is said to be feasible by producing MARR = 11.20%, an investment cost of Rp 557,367,280,654 is obtained; NPV of Rp. 207,599,344,809; BCR of 1.52; PP for 2 Years 1 Month; and IRR of 39.16%. The Sensitivity analysis with parameter of unit selling price and interest rate, If the selling price of Tower Orlin apartment units is reduced to 40%, the NPV will be negative and at an interest rate of 39.16% or can be declared inappropriate.
KARKTERISTIK CAMPURAN BETON ASPAL (AC-WC) DENGAN MENGGUNAKAN VARIASI KADAR FILLER LIMBAH ABU TERBANG BATUBARA
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, Aly Fahmi Ahmad Kifni , Qomariah Qomariah ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang, Yunaefi Yunaefi ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang
Published: March 2022

Asphalt is a very important pavement material and is often used in road construction in Indonesia. Laston AC-WC is a mixture of highway pavement which is located at the top which is directly related to the vehicle's axle. As for some components of asphalt mixture, namely: (1) asphalt (2) aggregate (3) filler. One component of asphalt concrete that will be replaced is filler. This filler functions as an enhancer of stability and reduces air cavity. In this case coal ash / fly ash instead of filler components is expected to be a solution to get good quality and cheap prices, considering coal ash / fly ash is very easy to obtain and the price is relatively cheap so it is necessary to choose asphalt mixture using fly ash as a filler to test its characteristics. In this study the authors aim to find: (1) the chemical content of fly ash (2) how much influence the fly ash has on concrete asphalt mixtures with filler content variations of 0%, 25%, and 50%, (3) optimum levels of asphalt with fly substitution ash, (4) estimated cost of implementing asphalt concrete mix with fly ash substitution. This research was conducted in the Malang State Polytechnic laboratory. In the study the authors used 10 sample specimens, with an average diameter of 10 and an average height of 6.85 with variations of asphalt, 4.5%, 5%, 5.5%, 6%, 6.5%. From the testing specimens take 24 hours, before the test specimens were tested using the Marshall method. The results of testing the characteristics of Marshall with non-substitutes get 5.25% KAO with VMA value: 22.00%, VIM: 4.62%, Stability: 851.69kg, Flow: 3.21%. This KAO value is used as a reference to look for KAO with 25% and 50% fly ash substitution. Marshall characteristic test results with 25% fly ash substitution get VMA values: 23.37%, VIM: 3.97%, Stability: 595.38kg, Flow: 4.54%. And testing the characteristics of Marshall with 25% fly ash substitution got a VMA value: 21.17%, VIM: 3.79%, Stability: 561.08kg, Flow: 4.59%. And the cheapest cost estimate is owned by Laston AC-WC with a 50% substitution at a price of Rp. 5.616.136.446.
PERENCANAAN ULANG SISTEM DRAINASE DIKAWASAN JALAN RAJAWALI KECAMATAN JEKAN RAYA KOTA PALANGKA RAYA
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, Anastasa Sentia Sentia , Efendi Medi ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang, Sutikno Sutikno ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang
Published: March 2022

Meningkatnya jumlah penduduk di Kota Palangkaraya membuat perubahan terhadap tata guna lahan yang mengakibatkan berkurangnya fungsi dari drainase untuk mengalirkan debit air hujan. Tujuan dari penelitian ini adalah menghitung debit rencana untuk membandingkan kapasitas pengaliran debit eksisting yang sudah ada pada Jalan Rajawali dan mengevaluasi aspek hidrolis saluran. Data yang dibutuhkan meliputi data curah hujan dari 3 stasiun terdekat yaitu Bukit tunggal, Klampangan dan Tangkiling 10 tahun terakhir. Untuk menghitung curah hujan menggunakan metode Gumble Tipe I, uji kesesuaian dengan Smirnov-Kolmogrov dengan kala ulang 5 tahun dan selanjutnya menghitung intensitas curah hujan dan debit air saluran. Hasil dari perhitungan diperoleh curah hujan rancangan sebesar 571,35 mm/hari dengan 5 variasi dimensi saluran, lebar tinggi masing-masing saluran yaitu : 1,0 x 1,0 m ; 1,1 x 1,1 m ; 1,2 x 1,2 m ; 1,3 x 1,3 m ; dan 1,4 x 1,4 m.
STUDI ALTERNATIF KELAYAKAN FINANSIAL DAN TEKNIS PEMBANGUNAN PERUMAHAN X
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, Ivana R. Mustafa Ali Akbar , Susapto Susapto ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang, Naibaho Armin ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang
Published: March 2022

Housing X will be built on an area of ​​± 36,937 m2 with 3 types of houses, namely type 36, type 45, and type 100. A feasibility study is needed to determine the technical and financial feasibility as input to owners, investors, and other parties. Technical feasibility is viewed from the parameters of the Basic Building Coefficient (KDB) and Green Base Coefficient (KDH). Financial feasibility is viewed from the parameters of Payback Period (PP), Net Present Value (NPV), Internal Rate of Return (IRR) and sensitivity analysis to increase and decrease in the value of income and expenditure. The results of the analysis of the technical feasibility of each type of house were declared feasible to be included in the simple house category with the value on housing plan X in Kediri, KDB of 20.59% and KDH of 29.47%. Financial feasibility is declared feasible because in the technical analysis it has more effective land and RTH meets local regulatory standards, while in the financial analysis it has a larger NPV, BCR and IRR and has a faster payback period with PP parameters within 3 years 7 months 26 days with an investment of 6 years. The NPV value is Rp. 15,498,022,769.46 and the IRR value of 55.83718887%> MARR (WACC) 9.56%. The sensitivity analysis in changes to the cost of income with fixed expenses is not feasible, if the alternative housing plan X in Kediri has an increase in construction costs of> 17.822955042% per year, and a decrease in income of> 2.754913381414% per year.
ANALISA KERUSAKAN JALAN MENGGUNAKAN METODE BINA MARGA PADA JALAN RAYA JERU – JALAN RAYA TUMPANG KABUPATEN MALANG
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, Fuady Robith , Burhamtoro Burhamtoro ,   Dosen Jurusan Teknik Sipil Politeknik Negeri Malang, Subkhan Muhamad Fajar ,   Dosen Jurusan Teknik Sipil Politeknik Negeri Malang
Published: March 2022

Ruas Jalan Raya Jeru – Jalan Raya Tumpang yang terletak di Kabupaten Malang mempunyai panjang 3 km. Kerusakan lubang dan retak karena beban lalu lintas ditemukan mulai dari STA 0+000 hingga STA 3+000. Tujuan dari analisis ini adalah untuk mengidentifikasi jenis dan tingkat kerusakan jalan, menentukan bentuk penanganan, dan mengetahui nilai Rencana Anggaran Biaya (RAB) perbaikan jalan yang dibutuhkan. Data primer yang diperlukan adalah hasil survei kondisi jalan, data CBR lapangan dan volume lalu lintas yang dilakukan pada bulan April 2021. Sedangkan untuk data sekunder yang dibutuhkan adalah geometrik jalan, lalu lintas harian rata-rata tahun 2017, 2018, 2019 dan Harga Satuan Pekerjaan (HSP) Kabupaten Malang dari Bina Marga. Referensi yang digunakan adalah sistem penilaian kondisi perkerasan menurut Bina Marga tahun 2011 dengan perhitungan Surface Distress Index (SDI) dan International Roughness Index (IRI) serta pedoman perencanaan tebal perkerasan lentur Pt T-01-2002-B. Hasil penelitian ini adalah sebagai berikut: jenis kerusakan berupa Alur sebesar 0%, Retak 91,50%, Tambalan 0%, Lubang 2,20%, Ambles 0%, Pelepasan Butir 4,20%, Deformasi Plastis 2,10%, dan Bekas Roda 0%. Ditinjau dari kondisi jalan keseluruhan didapatkan kondisi jalan 43% baik, 37% sedang, 20% ringan, dan 0% rusak berat. Jenis penanganan yaitu berupa Overlay dengan tebal 8 cm untuk umur rencana 10 tahun, dengan RAB yang dibutuhkan sebesar Rp. 3.523.000.000 (Tiga Milyar Lima Ratus Dua Puluh Tiga Juta Rupiah).
OPTIMASI PENGGUNAAN ALAT BERAT PADA PROYEK DERMAGA PT. BERLIAN MANYAR SEJAHTERA, GRESIK.
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, Mauludia Astri Indah , Lydianingtyas Dyah ,   Dosen Jurusan Teknik Sipil Politeknik Negeri Malang, Sholeh Moch. ,   Dosen Jurusan Teknik Sipil Politeknik Negeri Malang
Published: March 2022

Dalam sebuah proyek dengan skala besar, peralatan / alat berat menjadi salah satu faktor penting untuk menunjang berjalannya proyek. Beberapa faktor yang berpengaruh besar dalam penelitian ini seperti, tipe alat berat dan pemilihan alat berat sesuai kebutuhan. Sehingga dari faktor tersebut akan berpengaruh besar juga terhadap produktivitas masing-masing alat, durasi penyelesaian pekerjaan, jumlah penggunaan alat berat, dan anggaran biaya yang dikeluarkan. Dari tujuan yang akan dicapai tersebut, dibutuhkan spesifikasi alat berat yang tepat, harga beli alat berat, gambar kerja rencana di proyek, dan waktu pelaksanaan. Hasilnya, dengan menggunakan crawler crane kapasitas 30T dan 25T hanya dibutuhkan masing-masing 1 Unit. Penggunaan pile driver hammer tipe DD45 dan DD65, dan concrete truck mixer kapasitas 7m³ juga dapat mempersingkat durasi pekerjaan selama 6bulan, yang sebelumnya 20bulan menjadi 14bulan. Hal ini juga berbanding lurus dengan pengeluaran anggaran yang semakin ekonomis, dari Rp 52.029.279.617,91 menjadi Rp 19.213.561.469,07.
KINERJA MATERIAL BARU DARI BETON POLIMER VINIL ESTER TERHADAP UJI TEKAN, TARIK, DAN LENTUR
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, Wicaksono Anggara Mahatma , Rochman Taufiq ,   Dosen Jurusan Teknik Sipil Politeknik Negeri Malang, Riyanto Sugeng ,   Dosen Jurusan Teknik Sipil Politeknik Negeri Malang
Published: March 2022

Penggunaan semen pada dunia konstruksi cukup banyak bekontribusi dalam pemanasan global. Salah satu alternatif mengurangi penggunaan semen adalah dengan menggunakan teknologi beton polimer dalam dunia konstruksi. Di sisi lain vinil ester memiliki beberapa kelebihan diantara polimer lainnya, diantarnya adalah ketahanannya terhadap proses hidrolis. Penelitian ini menganalisis penggunaan vinil ester, MEKP, kobalt, EPS, serbuk kayu, dan pasir besi lumajang sebagai satu-kesatuan dalam campuran Beton Polimer Vinil Ester, menganalisis jumlah perbandingan komposisinya, sifat mekanisnya khususnya uji kuat tekan, tarik, dan lentur, serta bagaimana peluang penerapan BP VE ini dalam dunia konstruksi. Penelitian ini didahului dengan menganalisis material yang paling cocok untuk digunakan dan di diperoleh campuran VE + MEKP + Co + fly ash + pasir besi lumajang. Selain itu pengujian tekan terhadap campuran VE + MEKP + Co juga dilakukan untuk mendapat persentase hardener yang paling ideal dari segi kuat tekan, berat jenis, dan harga. Hal yang sama juga dilakukan pada campuran dengan fly ash dan pasir besi lumajang, komposisi yang paling ideal selanjutnya diuji tarik dan uji lentur. Hasil penelitian menunjukkan beton ini memiliki kuat tekan 92,64 MPa, kuat tarik 12,19 MPa, dan kuat lentur 106,18 MPa.
ANALISIS PRIORITAS PENANGANAN RUAS JALAN KOLEKTOR KECAMATAN SANANWETAN KOTA BLITAR DENGAN METODE ANALYTICAL HIERARCHY PROCESS
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, Fathoni Dewangga Rizal , Poerwanto Johanes Asdhi ,   Dosen Jurusan Teknik Sipil Politeknik Negeri Malang, Burhamtoro Burhamtoro ,   Dosen Jurusan Teknik Sipil, Politeknik Negeri Malang
Published: March 2022

Jalan memiliki peran yang besar pada ekonomi di masyarakat, oleh karena itu penentuan perbaikan jalan yang dikatakan rusak harus ditangani dengan tepat dan sesuai dengan kegunaan serta dampak jalan tersebut diamasyarakat. Apabila kondisi kerusakan jalan dibiarkan semakin parah maka berakibat pada biaya perbaikan yang semakin tinggi dan mengganggu perekonomian di wilayah tersebut. Penelitian ini dimaksudkan selain untuk mengetahui kondisi kerusakan perkerasan jalan di ruas jalan kolektor Kecamatan Sananwetan Kota Blitar, ditinjau pula prioritas jalan yang perlu diperbaiki menggunakan metode Proses Hierarki Analitik lalu ditentukan alternatif penanganan yang sesuai dengan kerusakan jalan yang ditinjau. Penelitian terhadap kondisi permukaan perkerasan dilakukan dengan survei secara visual menggunakan metode PCI yaitu dengan melihat dan menganilisis jenis dan tingkat kerusakan. Hasil dari survei menunjukan nilai kondisi kerusakan rata-rata jalan kolektor Kecamatan Sananwetan dengan nilai PCI=57,91 dengan rating baik dan kerusakan terparah di Jl. Palem dengan nilai PCI=30,2 dengan rating buruk. Nilai prioritas ruas jalan dihitung menggunakan metode Analytical Hierarchy Process berdasarkan jumlah volume, tingkat kerusakan dan jumlah penduduk dengan angka prioritas tertinggi di Jl. Bali dengan nilai 28,9 %, Jl. Kenari 19,3%, Jl. Palem 18,9%, Jl.Kalimantan 18,9%, Jl. Imam Bonjol 14,9%. Alternatif penanganan kerusakan yaitu pemeliharaan rutin untuk Jl. Bali, Jl. Kenari, Jl. Kalimantan dan Jl. Imam Bonjol. Untuk pemeliharaan rekonstruksi yaitu di Jl. Palem.
ANALISIS STABILITAS LERENG METODE FELLENIUS PADA PROYEK JLS LOT 6 TRENGGALEK – TULUNGAGNG STA 0+300
Authors:   Mahasiswa Manajemen Rekayasa Konstruksi, Jurusan Teknik Sipil, Politeknik Negeri Malang, Ismiradiana Nabilah , Sholeh Moch. ,   Dosen Jurusan Teknik Sipil Politeknik Negeri Malang, Suryadi Akhmad ,   Dosen Jurusan Teknik Sipil Politeknik Negeri Malang
Published: March 2022

Lereng di STA 0+300 proyek JLS Lot 6 termasuk lereng tidak stabil karena sering terjadi longsor. Perlu dilakukan analisis stabilitas lereng menggunakan metode fellenius untuk menentukan faktor keamanan dengan menghitung besar kekuatan geser yang menyebabkan kelongsoran. Data yang dibutukan adalah nilai kohesi (c), sudut geser dalam (φ), berat isi tanah (γ) serta koefisien gempa (kh). Lereng di redesign dengan variasi kemiringan dan ketinggian, untuk mencari lereng yang aman dan hemat biaya. Hasil yang digunakan yaitu kemiringan lereng 1:1 dengan nilai Geostudio Slope/W adalah FK (1,638) dan FKbgempa (1,137) sedangkan perhitungan manual nilai FK (1,630) dan FKbgempa (1, 181). Kemudian lereng ditanami rumput vetiver untuk memperkuat lereng, dengan parameter tanah diperoleh dari perbandingan data jurnal. Hasil perhitungan Geostudio Slope/W nilai FK (1,765) dan FKbgempa (1,231) sedangkan perhitungan manual nilai FK (1,800) dan FKbgempa (1,250). Hasil perhitungan RAB lereng yang sudah direncanakan ulang dan ditambah rumput vetiver yaitu Rp.48.050.638,-