bluuebunny/crossref_metadata_2025 huggingface dataset:
Regionalization of Seoul Office Market Using Machine Learning Algorithm for Spatial Clustering Based on Transaction Data
Authors:   Korea Real Estate Research Institute, Min Seonghun
Published: October 2023

This study attempts to regionalize the Seoul office market by focusing on the investors’ perspectives. The study uses the transaction price data announced by the Ministry of Land, Infrastructure, and Transport and applies the Fuzzy C-Means algorithms, which are machine learning-based clustering techniques. The study found the following: First, as a result of comparing various algorithms, the Spatial Fuzzy C-Means algorithm performs the best clustering. Second, the three major office districts in Seoul form clusters differentiated from other areas. Third, the number of Dongs belonging to each district is smaller than the general consensus. The traditional business district (CBD) includes only parts of Jongno-Gu and Jung-Gu, the Yeouido business district (YBD) is composed of only Yeouido-Dong, and the Gangnam business district (GBD) comprises not many Dongs of Gangnam-Gu and Seocho-Gu. Fourth, by weakening the criteria, the clustering results in different spatial expansions by district. CBD has expanded to Seodaemun-Gu and Yongsan-Gu, whereas YBD has not expanded to Mapo-Gu or Yeongdeungpo. In particular, GBD expands to a considerable number of Dongs in Gangnam-Gu and Seocho-Gu. Fifth, the range of each district changes by period. When the office price increases rapidly, the range of each district is widened, and vice versa. These results show that, unlike the general perception of office districts, the CBD is expanding to Seodaemun-Gu and Yongsan-Gu. Moreover, Yeouido and nearby Mapo-Gu and Yeongdeungpo are not homogenous enough to be viewed as one district, and GBD is not linear but rectangular. Furthermore, Songpa-Gu does not form a spatially connected district with Seocho-Gu and Gangnam-Gu.
“Undisputed Masculine Supremacy”: A Subversive Imagination of Moral Masculinity in Catharine Maria Sedgwick’s Hope Leslie
Authors:   The Institute of Humanities at Soonchunhyang University, Moon Set Byul
Published: October 2023

19th-century female author Catharine Maria Sedgwick’s 1827 novel, Hope Leslie, or Early Times in the Massachusetts, portrays the eponymous Heroine, Hope Leslie, who is born and orphaned in England and comes to a Puritan community in Massachusetts, New England. Hope’s trans-Atlantic experience allows her a peculiar position between a Native American community and a white settler one, and this trope has been popular in Hope Leslie criticism. While many critics focus on the female characters and their interracial intimacy, this paper attempts to explore peripheral male characters and undiscussed themes in the novel by shedding more light on Mr. William Fletcher, Hope’s uncle, delving into a reading of Hope Leslie as a blueprint for a uniquely American form of manhood, in reaction to traditional English values, and established norms of masculinity that do not apply in the New World, on American soil. Sedgwick’s critique on masculine ideals as problematic in terms of spirituality and morality, as the author champions women in the domestic sphere as occupying an ideal space. Looking more closely at the unconventional American father figure as a symbol of moral masculinity, this paper examines how Sedgwick’s radical vision of alternative masculinity is manifest in her fiction.
Zona Franca- Nº 15 (2006) [Parte I]
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº 15 (2006) [Parte I]
Zona Franca- Nº 15 (2006) [Parte II]
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº 15 (2006) [Parte II]
Zona Franca- Nº 15 (2006) [Parte III]
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº 15 (2006) [Parte III]
Zona Franca- Nº16 (2007) [Parte III].pdf
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº16 (2007) [Parte III].pdf
Zona Franca- Nº 18 (2009) [Parte I]
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº 18 (2009) [Parte I]
Zona Franca- Nº 19 (2010) [Parte I]
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº 19 (2010) [Parte I]
Zona Franca- Nº 2 (1993) [Parte II]
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº 2 (1993) [Parte II]
Zona Franca- Nº 20 (2011) [Parte II]
Authors: UNR CEIM
Published: October 2023

Zona Franca- Nº 20 (2011) [Parte II]
Zona Franca- Nº 5 (1996) [Parte II]
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº 5 (1996) [Parte II]
Zona Franca- Nº 6 (1997) [Parte III]
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº 6 (1997) [Parte III]
Zona Franca- Nº 6 (1997) [Parte IV]
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº 6 (1997) [Parte IV]
Zona Franca- Nº 7 (1998) [Parte II]
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº 7 (1998) [Parte II]
Zona Franca- Nº 9/10 (2001) [Parte I]
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº 9/10 (2001) [Parte I]
Zona Franca- Nº 9/10 (2001) [Parte II]
Authors: CEIM UNR
Published: October 2023

Zona Franca- Nº 9/10 (2001) [Parte II]
THE USE OF INFORMATION TECHNOLOGY-BASED MEDIA TO IMPROVE LEARNING OUTCOMES OF SOCIAL STUDIES SUBJECTS AT AL-FURQAN JUNIOR HIGH SCHOOL IN 2019/2020
Authors: Pratiwi Amanda
Published: October 2023

Learning media is a vehicle for channeling messages and learning information. In this globalization era, the development of instructional media is also increasingly advanced.. The purpose of this study was to determine the improvement of student learning outcomes and student responses to the use of information technology-based interactive learning media on Integrated Social Sciences subjects in class VIII students at SMP Al-Furqan Jember. This study uses the Classroom Action Research method by conducting two learning cycles with stages in each cycle including planning, action, observation, evaluation, and reflection. Student respons data was collected through questionnaires  which were then analyzed descriptively. The results of this study indicate there is an increase in student learning outcomes, this is indicated by the number of students who have completed in the first cycle of 65.52%, and the second cycle there are 93.10%  of students who have completed, and student responses obtained an average score of 41.72 with a positive category. The conclusion of this research with the use of information technology-based interactive learning media in class VIII at SMP Al-Furqan Jember gave a positive response with a significant increase in learning outcomes.
THE NEGATIVE EFFECTS OF PLAYING THE ONLINE GAME "FREE FIRE BATTLEGROUNDS" ON THE MORALS OF TEENAGERS IN AMBULU VILLAGE, JEMBER REGENCY
Authors: Hakiki Akhmad Nur , Muhith Abd.
Published: October 2023

This study aims to describe the negative effects of playing the online game "Free Fire Battlegrounds" on the morals of teenagers in ambulu village, Jember regency. This research uses a qualitative approach, a type of case study research (Case Study). Data collection techniques use in-depth interviews, observations and documentation. The collected data were analyzed using qualitative descriptive data analysis of Miles and Huberman's interactive model, namely data collection, condensation, data presentation and drawing conclusions, while the validity of the data was checked using source triangulation and techniques. 1) The Negative Effect of Free Fire Battlegrounds game on Adolescent Morals in Ambulu Village, namely Teenagers use money only to play games, Neglect of worship time, Lack of association in the environment, The mind will always be directed at the game and result in reduced concentration to study, unstable emotions. 2) The Negative Effect of Free Fire Battlegrounds on Adolescent Social Interaction in Ambulu Village, namely poor social interaction with family, environment and peers because of uncontrolled characters, teenage characters who are free to be uncontrolled when playing games are carried over to the real world. 3) The addictive effect of playing the Free Fire Battlegrounds online game on Adolescent Learning Activities in Ambulu Village, which is a bad achievement because teenagers choose to play games for a long time instead of studying and repeating lessons.
DEVELOPMENT OF INTERACTIVE MULTIMEDIA-BASED LEARNING MEDIA FOR SOCIAL STUDIES SUBJECTS AT SMP NEGERI 2 GENDING PROBOLINGGO
Authors: Ghimby Dimas , Fajarini Anindya
Published: October 2023

This research aims to (1) develop interactive multimedia-based learning media in IPS class VII subjects at SMPN 2 Gending in the 2019/2020 school year, (2) to know the feasibility of interactive multimedia-based learning media in IPS class VII subjects in SMPN2 Gending in 2019/2020 school year. The research method used is research and development (R&D). This research adopted ADDIE development model with five stages namely; Analysis, Design, Development, Implementation, and Evaluation. The research subjects consisted of three experts namely; material experts, media experts, and social studies teachers. Data collection techniques using questionnaires and tests. Data were analyzed using descriptive analysis techniques. Based on the results of the study, it can be concluded that the feasibility of interactive multimedia-based learning media from the validation results of the material expert team, media and social studies teachers is good and student responses are very good. Thus, interactive multimedia-based learning media is feasible to be used as a learning medium for class VII students at SMPN 2 Gending.
Growth temperature dependence of MnSb synthesis on GaAs (111) B using molecular beam epitaxy
Authors: Kabir Md Faysal , Islam Md Tauhidul , Komatsu Soh , Akabori Masashi
Published: October 2023

In this study, we employed MBE to synthesize four MnSb samples on GaAs (111) B substrate at growth temperatures 300 °C, 400 °C, 500 °C, and 600 °C for GT-300, GT-400, GT-500, and GT-600 samples respectively. Surface morphology and elemental composition were characterized using scanning electron microscopy and energy-dispersive X-ray spectroscopy for four prepared samples. X-ray diffraction was performed to assess the crystal formation and surface quality of all samples. Epitaxial growth confirmation was performed using electron backscatter diffraction. Magnetic properties were assessed via superconducting quantum interference device measurements. Based on these comprehensive characterizations, the GT-500 sample, grown at a temperature of 500 °C (pyrometer 410 °C), demonstrated excellent surface morphology, crystal formation, surface quality, and magnetic properties. This sample holds outstanding potential for future applications, particularly in fabricating spintronics devices as a high-quality ferromagnetic source/drain, powering remote sensors, and thermoelectric devices.
Toward a Contrastive Semantics of the Biblical Lexicon. The nouns of Rules and Regulations in Biblical Hebrew Historical-narrative Language and their Greek equivalents in the Septuagint
Authors: Vergari Romina
Published: October 2023

The linguistic data presented in this work stem from a corpus-based distributional analysis of the nouns relating to the biblical notions of rules and regulations (mišpāṭ, miṣwâ, tôrâ, ḥōq, and ḥuqqâ) drawn from within the historical-narrative language of standard and late Biblical Hebrew. The aim of the research has been to investigate the meaning of these words within a lexicological model suitable to represent their semantic flexibility and variability, which is also reflected in their paradigmatic relations within the Hebrew lexicon. The scope of the investigation has been then interlinguistically extended to the equivalent expressions in the ancient biblical Greek versions. To assess the degree of idiomaticity of the translators’ lexical choices and their possible interpretative implications, a further corpus of Greek historical-narrative texts broadly coeval with the biblical translations has been taken as a term of comparison; such a corpus has been created so as to include on the one hand writings transmitted within the Septuagint textual tradition and therefore exemplary of Graecophone Hellenistic Jewish culture, on the other hand texts whose origin and content are independent from this milieu.
La pedana Wii Nintendo: supporto domiciliare nella riabilitazione dei disturbi dell’equilibrio
Authors: Burini Andrea
Published: October 2023

La Riabilitazione si è affacciata nel mondo della Realtà Virtuale e si sono sviluppati dei protocolli riabilitativi alternativi che si integrano alla  terapia “convenzionale”. Con questo nuovo mezzo il soggetto non è più semplice spettatore di ciò che accade sullo schermo, ma vive la  sensazione di un coinvolgimento e di una partecipazione, nonostante quegli oggetti e quegli spazi esistano solo nella memoria del computer e  nella mente del soggetto stesso. Tutto ciò è in grado di aumentare il coinvolgimento e la motivazione del paziente, elementi critici soprattutto  nella riabilitazione pediatrica e neurologica. Lo scopo di questo studio è stato quello di valutare l’efficacia terapeutica della Nintendo Wii  balance board in nove pazienti con diversi tipi di disturbi dell’equilibrio. Si sono avuti risultati positivi in termini di efficacia di integrazione delle  afferenze propriocettive, piacevolezza, miglioramento delle strategie sensoriali, dati che ci suggeriscono l’importanza della prescrizione di  questo tipo di esercizio come integrazione dei protocolli di riabilitazione standard anche a domicilio. Non risentono di tali effetti positivi i  pazienti con disturbo cerebellare ed esiti di trauma cranico, nei quali anzi si può avere un peggioramento.
Rehabilitation has entered the world of Virtual Reality and alternative rehabilitation protocols have been developed that integrate with "conventional" therapy. With this new medium, the subject is no longer a simple spectator of what happens on the screen, but experiences the feeling of involvement and participation, despite the fact that those objects and spaces exist only in the memory of the computer and in the mind of the subject himself. All of this is able to increase patient involvement and motivation, critical elements especially in pediatric and neurological rehabilitation. The purpose of this study was to evaluate the therapeutic efficacy of the Nintendo Wii balance board in nine patients with different types of balance disorders. There have been positive results in terms of the effectiveness of integrating proprioceptive afferents, pleasantness, improvement of sensory strategies, data that suggest the importance of prescribing this type of exercise as a supplement to standard rehabilitation protocols, even at home. Patients with cerebellar disorder and head trauma outcomes are not affected by these positive effects, in which, on the contrary, there may be a worsening.
Lo studio PET/TC delle placche β-amiloidi con 18F – FlorBetapir, 18F – FlorBetaben e 18F – Flutemetamol
Authors: Trondoli Giovanni , Saffioti Dario
Published: October 2023

La malattia di Alzheimer uccide circa 53.000 persone all’anno e circa 230.000 soggetti affetti dalla patologiarichiedono cure domiciliari. Questa patologia è caratterizzata microscopicamente dalla comparsa di sostanzaamiloide a livello della corteccia cerebrale con diminuzione del numero di neuroni corticali, in particolare neilobi frontali e temporo-parietali. Più nello specifico, colpisce alcune regioni encefaliche quali i nuclei della base,l’ippocampo e il giro dell’ippocampo, aree direttamente coinvolte nell’elaborazione dei ricordi. Negli ultimi anni, losviluppo dell’imaging PET ha reso possibile l’utilizzo di traccianti fluorati per lo studio della sostanza amiloide e lasua visualizzazione in vivo. I radiotraccianti più importanti nell’analisi PET/TC sono: l’Amyvid (18F - FlorBetapir),il Neuraceq (18F - FlorBetaben) e il Vizamyl (18F- Flutemetamol) che hanno evidenziato l’efficacia nello studio dellasostanza amiloide. Alzheimer’s disease (AD) kills about 53.000 people every year and about 230.000 subjects affectedby AD need home care. This disease is microscopically characterized 3 amyloid substance on cerebral cortex witha reduction of cortical neurons, in particular in frontal and temporo-parietal lobes; it damages particularly someencephalic regions such as basal ganglia, hippocampus and hippocampus gyrus, areas directly related to elaborationof memories. In the last years, the development of PET imaging has made possible the use of fluorinated tracers tostudy amyloid substance and its visualization in vivo. Amyvid (18F - FlorBetapir), Neuraceq (18F - FlorBetaben) andVizamyl (18F - Flutemetamol) are the most important radiotracers for PET/CT analysis which have been underlinedthe efficacy in the study of amyloid substance.
Ventriculography for the study of TAKO-TSUBO Syndrome
Authors: Grazioli Fabio , Magliacane Domenico , Marino Ornella , Pecoraro Carmine
Published: October 2023

Tako-Tsubo Cardiomyopathy (TTC) is an acute syndrome, identified in the early 1990s by Japanese researchers, which mimics an acute myocardial infarction. Cardiomyopathy is transient and begins with a clinical picture similar to that of an acute myocardial infarction. This pathology seems to be related to intense psychological and physical stress with a prevalence in the female sex (95%) in post-menopause. The term Tako-Tsubo means ‘octopus trap’ in Japanese: the left ventricle takes on a peculiar appearance in systole, similar to a narrow-necked amphora, morphologically identical to the vessel (tsubo) that Japanese fishermen use to catch octopuses (tako). The appearance of the left ventricle (tako-tsubo shape) is due to a ‘complete’ depletion of cardiac muscle activity (myocardial stunning), a kind of ‘stunning’ or paralysis of the middle and apical portions of the heart. Coronarography and ventriculography are an essential step in the diagnosis of TTC. The mere demonstration of a coronary tree free of angiographically significant stenosis is not sufficient for the diagnosis of TTC. The other key diagnostic element is, in fact, the demonstration of left ventricular hypokinesia or akinesia. Since left ventricular wall motility disorders change rapidly, ventriculography performed immediately after coronary examination is the gold standard examination to allow the characteristic appearance of the syndrome to be verified and, consequently, to distinguish it from an acute coronary syndrome with uninjured coronary arteries, thus avoiding a diagnostic error.
Ingrown toenails treatment in diabetic patients: a Pilot Study of a new conservative treatment of orthonyxia.
Authors: Cassano Vito Michele , Parra Cecilia , Griguoli Francesca , Bonino Giovanni , Di Carlo Alberto
Published: October 2023

Ingrown toenail (also onychocryptosis) is one of the most frequent nail pathologies in diabetic population. Neurological and vascular complications can increase painful symptoms and suffering of tissue which can lead to ulceration, therefore surgical matricectomy is not recommended. In this research we aim to evaluate the effectiveness of a 40% urea cream treatment associated whit nail acrylic resin brace (ortonixia) versus traditional cut and resin nail’s recostruction. Diameter of nail and NRS scale were used to evaluate change of nail plate and pain before and after treatment. 32 subjects with 52 treated nails were included. About 20 nails of 13 subject were recruited in experimental group. Differential final and initial diameter was 4.67±1,55 mm in experimental group and 3.01±1.26 mm in control group (p<0.0001) and recurrence rate was 15% and 75% respectively ( p<0.0001). Also days of absence of pain, in experimental group there was a mean of 319.05±113.18 days, instead in control group there was a mean of 208.31±119.84 days (p<0.0002). This statistical analysis shows that effectiveness of new conservative approach is greater than in nail reconstruction method and a valid alternative to surgical treatment in diabetic patients.
Development of an organisational model for the preparation of the mRNA-bnt162B2 vaccine: the experience of the Clinical Galenics Laboratory of the Hospital Pharmacy of the Mauriziano Hospital, Turin
Authors: Chiaramonte Eleonora , Bushkolaj Kristela , Aluffi Paolo , Borello Rosanna , Galota Giusi , Luchin Annalisa , Miotto Emma , Smaldone Antonietta , Tripodi Domenico , Michelotti Mario , Bellero Marco , Bianco Alessandra , Fazzina Giovanna , Marcato Maddalena , Masucci Simona , Pennetta Danilo , Azzolina Maria Carmen , Gasco Annalisa
Published: October 2023

The centralised preparation of the mRNA-bnt162B2 vaccine at the Clinical Galenics Laboratory of the Hospital Pharmacy of the Mauriziano Hospital in Turin is an organisational model designed to guarantee the quality of the drug to be administered, the safety of both the vaccinee and the vaccinating personnel, and the traceability of all operations performed. The preparation in ready-for-use syringes individually packaged and labelled, according to the Good Manufacturing Practice (GMP) of the Official Pharmacopoeia, was entrusted to the Biomedical Laboratory Technician (BLT) under the responsibility of the Hospital Pharmacist.In compliance with the GMP, the model was developed through dedicated premises, specific staff training and written procedures concerning the handling of vaccines. The entire production process was guaranteed by: a Hospital Pharmacist and two interchangeable BLTs, one preparer and one assistant. They were necessary to maintain the aseptic technique and the cross-checking of all operations. Labels were prepared showing qualitative-quantitative composition, batch and expiry date, validity of the preparation, pharmacist’s signature. The label applied to each syringe, together with the daily work plan, ensured traceability of the process at every stage.The efficient model proposed has always proved adaptable to the changes that characterised the vaccination campaign. From 27/12/2020 to 31/03/2022 a total of 48.017 doses were prepared. The centralisation of the vaccine preparation in the Clinical Galenics Laboratory of the Hospital Pharmacy also reduced handling errors, as well as the waste from unused residues, which proved to be only 0.08%.
Training: implementation of laboratory tests for molecular, antigenic and serological diagnostics of SARS CoV2 and reorganization of work activities
Authors: Corinaldesi Claudia , Oliverio Rosa Maria , Mitello Lucia , Macari Marina , Bertolini Marina
Published: October 2023

The U.O.C. of Microbiology and Virology experienced a disruption of work activity in the year 2020 due to the COVID 19 emergency .On 3 April 2020 the U.O.C. of Microbiology and Virology of the San Camillo-Forlanini Company is included in the network of CORONET laboratories for molecular, antigenic and serological diagnostics of SARS CoV2.To cope with this emergency it was necessary to reorganize the entire laboratory activity, so as to be able to carry out both the routine activities and those concerning the diagnosis of SARS CoV2, coming not only from the San Camillo-Forlanini company, but also from the territorial ASL, Case di Cira, RSA, Drive in and Walk in.The complex and unexpected scenario brought out the need to quickly create an organizational model that could guarantee the execution of routine exams, but also provide a diagnostic priority for SARS-Cov2.The initial phases were difficult on various fronts: in a very short time the laboratory technicians had to learn the most sophisticated molecular techniques indispensable for the diagnosis of SARS CoV2, moreover, it was necessary to face the serious shortage of reagents difficult to find on the market. Europe.However, the biggest challenge was managing the hundreds of daily samples.Thanks to the reorganization implemented, the U.O.C. of Microbiology and Virology is able to carry out surveys on increasingly large population samples, in compliance with regional and national guidelines.
SOCIAL MEDIA USE, CHANGES IN READING /WRITING CULTURE, AND ACADEMIC PERFORMANCE OF UNDERGRADUATES IN THE NIGER DELTA UNIVERSITY, BAYELSA STATE
Authors: Michael-Olomu Oyintonyo , Uzobo Endurance
Published: October 2023

This study examined the impact of social media usage on the reading and writing culture of undergraduate students of Niger Delta University vis-a-vis the academic performance of the students. No doubt, the use of social media has brought significant changes to all aspects of human lives within the past decade. Despite this, there is a dearth of empirical studies analysing the change it has brought to reading and writing culture of undergraduate students in Nigeria. Uses and gratification theory was adopted as framework for
the study, while a survey research design was employed. The Niger Delta University was purposively selected as the research locale based on its lack of empirical analysis on the subject matter. The university was clustered into faculties and a sample of 392 respondents was drawn using Yamane (1967) formula. Simple random sampling was used to proportionately administer a structured questionnaire on students. Descriptive statistics and Multiple Linear Regression at P<0.05 were applied to analyse Data. The average age of the respondents was 21.29±2.49 years. The majority used WhatsApp (100.0%) and Facebook (30.9%) to study or write as undergraduate students. They also used these platforms to read journal articles (47.2%), academic books (85.7%) and watch movies (99.0%) among others. These activities, however, jointly predicted academic performance at (R=0.895, R2=0.801, Adj. R2=0.797, F(8,
383)=192.854). Using the social media to read Journal articles (β=0.112), academic books (β=-0.308), magazines (β=-0.123), newspapers (β=-0.265), watch movies (β=0.107), pictures (β=-0.496) and advertisement (β=-0.974) correlated student academic performance. The study recommended that, students academic reading materials be distributed on social media platforms following the students’ level of trend and addiction to social media.
ANALISIS RISIKO PADA INCINERATOR PENGOLAHAN LIMBAH MEDIS PT. PENGELOLA LIMBAH KUTAI KARTANEGARA,SAMBOJA – KALIMANTAN TIMUR
Authors: Hardiyono Hardiyono , Arifin Syamsul , Kelana Andri Indra
Published: October 2023

Penilaian risiko yang dilakukan di fasilitas proses pembakaran limbah medis menggunakan Incinerator. Metode yang digunakan dalam penelitian ini adalah HAZOP. Penelitian ini merupakan penilitian kualitatif deskriptif atau observatif. Hasil penelitian ini memberikan gambaran tingkat risiko proses di fasilitas Incinerator, dimana tingkat risiko tertinggi ada pada proses pada peralatan Rotary Kiln Chamber 1, Chamber 2, Heat Exchanger, Water scrubber, Cyclone, Induce draft Fan, Sampling Point dan Exhaust stack. Tingkat risiko tersebut diperoleh dari perkalian kemungkinan kejadian (probability) dan Keparahan (consequences). Selain itu diberikan rekomendasi – rekomendasi sebagai bahan untuk perusahaan melakukan perbaikan desain agar risiko yang teridentifikasi dapat diminimalisasi.

 

Kata Kunci : Insinerator, HAZOP, Risiko
KAJIAN PENGGUNAAN JEMBATAN PENYEBERANGAN ORANG TERHADAP KESELAMATAN PEJALAN KAKI DI KOTA BALIKPAPAN
Authors: Mulya Widya , Zainul L.M , Alifah Rifda Nur
Published: October 2023

Keselamatan Transportasi adalah suatu keadaan terpenuhinya persyaratan agar setiap orang terhindar dari risiko kecelakaan selama perjalanan yang disebabkan oleh manusia, alat angkut moda transportasi dan lingkungan. Keselamatan pejalan kaki menjadi bagian dari keselamatan transportasi untuk itu perlu didukung dengan infrastruktur yang baik, salah satunya yaitu Jembatan Penyeberangan Orang (JPO). Jembatan Penyeberangan Orang di Kota Balikpapan hanya terdapat 1 dan telah dibangun sekitar tahun 2005 yang terletak di tengah kota kawasan pusat perbelanjaan Plaza Balikpapan di Jalan Jenderal Sudirman, sedangkan penduduk di Kota Balikpapan terus meningkat setiap tahunnya. Tujuan penelitian ini adalah untuk mengetahui penggunaan jembatan penyeberangan orang terhadap keselamatan pejalan kaki. Metode penelitian yang digunakan yaitu menggunakan metode deskriptif kualitatif, untuk mengetahui dan menggambarkan secara deskriptif tentang penggunaan jembatan penyeberangan orang terhadap keselamatan pejalan kaki di Kota Balikpapan dimana penulis menggunakan lembar observasi mengenai kondisi fisik JPO dan dengan menggunakan pedoman wawancara. Semua data yang telah terkumpul dalam penelitian ini akan diolah dan dianalisis dalam bentuk deskriptif mengenai penggunaan jembatan penyeberangan orang termasuk keamanan, dan keselamatan pejalan kaki bagi pengguna jembatan penyeberangan orang di kota Balikpapan. Dari hasil penelitian menunjukkan bahwa kondisi keamanan pejalan kaki pada jembatan penyeberangan orang di Balikpapan didapatkan presentase sebesar 67% dan kondisi keselamatan pejalan kaki pada jembatan penyeberangan orang di Balikpapan didapatkan presentase sebesar 75% dan dapat dikategorikan BAIK.

Kata Kunci : Jembatan Penyeberangan Orang, Keamanan, Keselamatan Pejalan Kaki
ANALISIS LINGKUNGAN KERJA PADA GANGGUAN MATA PENGGUNA KOMPUTER DI PT BUNGA MAKESA
Authors: Sunyanti Sunyanti
Published: October 2023

Kelelahan mata dikenal sebagai tegang mata atau Astenophia yaitu kelelahan ocular atau ketegangan pada organ visual dimana terjadi gangguan pada mata dan sakit kepala berhubungan dengan penggunaan mata secara intensif. PT Bunga Makesa merupakan perusahaan yang bergerak dibidang jasa. Dalam tugas dan tanggung jawab setiap harinya karyawan PT Bunga Makesa selalu menggunakan perangkat kerja berupa komputer untuk memudahkan pekerjaannya dimana pekerja akan berada di depan komputer selama berjam-jam, dimana hal tersebut berpotensi sebagai penyebab terjadinya kelelahan mata. Penelitian ini menggunakan metode kualitatif, dengan subjek penelitian sebanyak 7 informan. Teknik pengumpulan data yang digunakan dalam penelitian ini adalah: Observasi, wawancara, dan lembar checklist. Berdasarkan hasil penelitian gejala atau keluhan yang sering dirasakan oleh pekerja pengguna komputer yaitu: fokus pada mata yang berubah perlahan, terasa berdenyut disekitar mata, mata terasa perih dan mengantuk. Berdasarkan hasil dari jarak pandang mata pekerja dengan monitor, terdapat dua pekerja yang belum sesuai dengan ketetapan OSHA yakni jarak pandang masih dibawah 50cm. Berdasarkan hasil dari lama paparan radiasi monitor komputer pekerja di PT Bunga Makesa tergolong dalam kategori sedang yakni pekerja melakukan pekerjaannya hanya 2-4 jam yakni sebesar 71,42%.
ANALISIS PEMENUHAN SISTEM TANGGAP DARURAT KEBAKARAN PADA PT. PEMBANGKIT JAWA BALI DI BALIKPAPAN
Authors: Maslina Maslina , Zainul L.M , Noeryanto Noeryanto , Lilis Suryanti Jumdana
Published: October 2023

PT. Pembangkit Jawa Bali di Balikpapan adalah salah satu perusahaan yang bergerak pada bidang jasa operasi pembangkit listrik dan maintenance,yang manamemiliki kegiatan pekerjaan yang dapat memicu timbulnya nyala titik api yangbisa membuat kebakaran saat proses pekerjaan sedang berlangsung. Karena peneliti ingin mengetahui apakah Sistem Tanggap Darurat Kebakaran yang ada padaPT Pembangkit Jawa Bali sudah sesuai standar yang ada atau belum oleh karena itu diperlukannya analisis sistem pemenuhan tanggap darurat kebakaranyang ada pada perusaahaan tersebut.Berdasarkan data sekunder, di PT Pembangkit Jawa Bali telah terjadi kasus kebakaran pada tahun 2016 sebanyak 1 kasus hanya kebakaran kecil ,kasus terjadi di PT Pembangkit Jawa Bali. Akibat dari kejadian kebakaran tersebut dibebrapa daerah dirugikan dengan hilangnya waktu produksi antara 2 hari hingga 5 hari, yang otomatis akan mengurangi beban listrik yang seharusnya dihasilkan sehingga menyebabkan pemadaman listrik di berbagai daerah. Kerusakan mesin yang harus diperbaiki ataupun diganti dengan mesin yang baru, serta kerugian materi yang mecapai ratusan juta. Dari hasil observasi lapangan dan data dari primer data sekundermengnunjukkan hasil dari penelitiansehingga rata-rata Tingkat Pemenuhan Sistem Tanggap Daruratnya sebesar 89% Sehingga dapat ditarik kesimpulan bahwa pemenuhansistem tanggap daruratkebakaran pada PT Pembangkit Jawa Bali di Balikpapan memiliki nilai rata-rata tingkat pemenuhanya sebesar 81%. Berdasarkan nilai tersebut maka tingkat pemenuhanya masuk dalamklasifikasi “BAIK”menurut tabel audit kebakaran Puslitbang Departemen Pekerjaan Umum Pd-T-11-2005-C yang berarti semua tingkat komponen pemenuhan sistem tanggap darurat kebakaran sesuai persyaratan, tetapi ada beberapa kriteria yang kurang
ANALISIS POSTUR KERJA PADA PEKERJA BONGKAR MUAT PADA PT KARYA PRIMA JAYA DI BALIKPAPAN
Authors: Mulya Widya , Zulfikar Iwan , Maulana Azwar Aldi
Published: October 2023

Tujuan dilakukan penelitian ini yaitu untuk mengetahui gambaran dari postur kerja yang dilakukan oleh para pekerja saat melakukan bongkar muat di PT Karya Prima Jaya apakah telah sesuai dengan ergonomi kerja yang ada dengan menggunakan sampel 6 informan. Alat penelitian yang digunakan untuk melakukan penelitian ini yaitu metode Ovako Work Analysis System,Kuesioner Nordic Body Map, observasi, dan wawancara.

Hasil Analisis yang diperoleh yaitu postur kerja yang dilakukan oleh pekerja  di PT Karya Prima Jaya masih belum sesuai dengan ergonomi kerja yang ada karena masih sering sembarangan atau mengindahkan ergonomi kerja yang benar saat melakukan bongkar muat karena para pekerja belum mendapatkan pelatihan khusus tentang ergonomi kerja dan mengakibatkan banyak keluhan musculoskeletal yang timbul pada pekerja . Berdasarkan Ovako Work Analysis System dan Nordic Body Map keluhan dari para pekerja di PT Karya Prima Jaya berbeda – beda, yaitu punggung, pinggang, leher atas, bahu , lengan atas, dan kaki.
HUBUNGAN PENGETAHUAN TERHADAP TINDAKAN TIDAK AMAN PADA PEKERJA WORKSHOP DI PT BUKAKA TEKNIK UTAMA BALIKPAPAN
Authors: Fuadi Yan , Swandito Adji , Rusba Komeyni , Fadillah Nur
Published: October 2023

PT. Bukaka Teknik Utama Balikpapan didirikan pada tahun 21 November 2000 dengan berkantor sementara di Jl. Milono Kelurahan Gunung Sari – Balikpapan Tengah merupakan bisnis unit PT. Bukaka Teknik Utama yang bergerak di bidang usaha Engineering, Fabrication, Construction Offshore & Onshore and Maintenance Services. Pada tahun 2005 PT. Bukaka Teknik Utama Cabang Balikpapan mendirikan kantor & workshop di Jl Mulawarman KM 21 Manggar – Balikpapan Timur. Perusahaan ini mempunyai tenaga kerja 711 orang, Begitu banyak potensi bahaya yang dapat terjadi pada saat pengerjaan remanufacturing. Berdasarkan data temuan PPS yang telah dilakukan 3 bulan terakhir area washing engine menempati peringkat pertama dengan temuan terbanyak yaitu lima perilaku tidak aman. Lima perilaku tidak aman diantaranya yaitu posisi dan pergerakan badan resiko posisi Un- Ergonomis, tidak menggunaka APD, memegang benda dan menggapai dan meraih benda. Dari 55 sampel tingkat pengetahuan pekerja Workshop PT Bukaka Teknik Utama dalam katagori tinggi sebanyak 49 pekerja yaitu (89.1%). Dan Hasil penelitian mengenai Pengetahuan pekerja terhadap Perilaku tidak aman memiliki hubungan yang kuat. Pada tindakan tidak aman pekerja kategori yang paling dominan adalah kategori aman yaitu sebanyak 51 responden (93%).
PEMANTAUAN PENGANGKUTAN LIMBAH BAHAN BERBAHAYA DAN BERACUN DARI PENGHASIL STUDI KASUS PUSKESMAS MUARA JAWA KABUPATEN KUTAI KARTANEGARA
Authors: Mulya Widya - , Sari Iin Pratama , Hartono Ardiyanti Dina Sabrina
Published: October 2023

Puskesmas merupakan fasilitas pelayanan Kesehatan yang menyelenggarakan upaya Kesehatan masyarakat dan perorangan tingkat pertama. Puskesmas Muara Jawa Kabupaten Kutai Kartanegara menghasilkan Limbah Bahan Berbahaya dan Beracun (B3) yang pengolahannya bekerjasama dengan pihak ketiga, pada proses penyampaian limbah B3 dari penghasil menuju pengolahan diperlukan jasa pengangkutan limbah B3, dimana pengangkutan ini juga diperlukan kerjasama dengan pihak ketiga. Sepanjang tahun 2022, rata-rata volume limbah medis pada Puskesmas Muara Jawa Kabupaten Kutai Kartanegara mencapai 1 kg/hari. Puskesmas Muara Jawa Kabupaten Kutai Kartanegara sebagai penghasil limbah B3 harus mengetahui kelengkapan dokumen dan keamanan kendaraan serta berkendara pihak pengangkut limbah B3 yang diajak kerjasama, hal ini untuk menghindari kejadian salah satunya pengangkutan limbah B3 illegal. Tujuan penelitian yaitu untuk mengetahui hasil pemantauan pengangkutan limbah Bahan Berbahaya dan Beracun (B3) dari penghasil pada Puskesmas Muara Jawa Kabupaten Kutai Kartanegara. Penelitian ini dilakukan dengan cara observasi kelengkapan dan keamanan pengangkutan limbah B3, wawancara kepada pegawai Kesehatan lingkungan Puskesmas Muara Jawa Kabupaten Kutai Kartanegara. Berdasarkan hasil observasi dan wawancara kelengkapan dan keamanan pengangkutan limbah B3 merujuk pada Peraturan Menteri Lingkungan Hidup dan Kehutanan Nomor 6 Tahun 2021 tentang Tata Cara dan Persyaratan Pengelolaan Limbah Bahan Berbahaya dan Beracun, mendapat hasil penilaian 94,11% sesuai, kondisi kurang pada bagian festronik pengangkutan limbah B3 dimana masih menggunakan manifest.

Kata Kunci: Pemantauan, Pengangkutan, Limbah Bahan Berbahaya dan Beracun, Penghasil.
EFEKTIFITAS TOOLBOX MEETING PADA KESELAMATAN DAN KESEHATAN KERJA JURU IKAT DI PT PELABUHAN PENAJAM BANUA TAKA
Authors: Sunyanti Sunyanti , Fuadi Yan , Swandito Adji , Rohanto Edy
Published: October 2023

Penerapan SMK3 dalam PP 50 tahun 2012, menyebutkan bahwa komunikasi K3 merupakan bagian dari kegiatan pendukung untuk pencegahan kecelakaan kerja. Salah satu upaya pencegahan yang ada dalam K3 adalah  melaksanakan  program safety communications antara lain pelaksanaan safety talk atau toolbox meeting di tempat  kerja. Toolbox meeting didefinisikan sebagai pelatihan lapangan kerja informal, pembicaraan ini dirancang untuk menyampaikan pesan keselamatan untuk meningkatkan keselamatan dan mencegah insiden terkait pekerjaan (Varley & Boldt, 2002). Pelaksanaan Toolbox Meeting merupakan bagian dari kegiatan pendukung untuk pencegahan kecelakaan kerja. Penelitian ini bertujuan untuk mengetahui tingkat efektifitas komunikasi K3 dalam Toolbox Meeting di PT Pelabuhan Penajam Banua Taka. Penelitian ini bersifat Kuantitatif dengan banyuan software SPSS dan Teori Uji Efektifitas Depdagri (2009). Populasi dalam penelitian ini adalah Pekerja Departemen Oprasional Juru Ikat PT Pelabuhan Penajam Banua Taka yang berjumlah 76 orang, dengan sampel 43 orang. Teknik sampling yang digunakan adalah probability sampling yaitu dengan simple random sampling. Menggunakan Kuisoner Likert dengan 35 pernyataan positive disetiap sub-sub variable yang bersumber dari teori Ron Ludlow & Fergus Panton yaitu Hambatan Komunikasi K3. Hasil dari perhitungan efeketifitas pelaksanaan toolbox meeting adalah 66.67 % yaitu Cukup Efektif. Diperkuat dengan hasil observasi dan wawancara bahwa ditemukan Cara Pandang yang kurang luas atau disebut dengan Perceptual Distraction yang menyebabkan Komunikasi K3 dalam toolbox meeting terhambat. Kemudian pada faktor Culture Difference atau Perbedaan Budaya bahwa perbedaan budaya dalam hal ini budaya K3 dan budaya kedisplinan yang belum berjalan baik sehingga menghambat komunikasi efektif. Pada faktor Poor Choise Communicaton Channel dalam hal ini pemilihan materi toolbox meeting, mereka merasa jenuh dengan Materi Toolbox Meeting yang kurang menarik sehingga berhubungan dengan faktor No Feed Back yaitu pekerja kurang antusias dalam memberikan tanggapan saat pelaksanaan toolbox meeting.
Pengaruh campuran perekat dan waktu penekanan terhadap karakteristik briket cangkang biji karet
Authors: Irawan Dwi , Mafruddin  , Darmanto Ardiyanto
Published: October 2023

Biomassa merupakan bahan organik berasal dari mahluk hidup yang bisa dikonversikan menjadi bahan bakar melalui proses biologis dan termokimia. Konversi termokimia biomassa terbagi menjadi beberapa proses pembakaran secara langsung, pirolisis/karbonisasi dan gasifikasi. Briket dihasilkan dari pirolisis dengan mengubah biomassa menjadi arang, kemudian dibentuk menjadi bahan bakar padat. Tujuan kajian ini yakni mengetahui pengaruh campuran perekat dan waktu penekanan terhadap nilai proksimasi dan pembakaran briket. Bahan baku cangkang biji karet dengan variasi perekat molasses 70% : 30%, 75% : 25%, dan 80% : 20%, serta variasi waktu penekanan 30, 45, dan 60 menit dengan menggunakan metode cetak panas suhu 120oC dan tekanan 200 bar. Hasil menunjukkan bahwa nilai kalor terbaik, pada campuran 80% : 20% dan waktu penekanan 60 menit yaitu 5.903,19 kal/g, sedangkan kadar air, dan kadar abu masih diatas SNI briket rumah tangga. Waktu pembakaran campuran 80% : 20% membutuhkan waktu 30 menit untuk mencapai suhu 1000C, rata-rata waktu 35 menit.
Analisis pengaruh variasi jumlah pelapisan dan jarak pelapisan spray coating pada baja AISI 1020 terhadap kekasaran dan laju korosi dengan media air garam
Authors: Setyawan Iqbal Rizky , Rosidah Afira Ainur
Published: October 2023

Baja AISI 1020 merupakan baja karbon rendah yang biasa digunakan sebagai lambung kapal. Kekurangan pada baja adalah mudah terkorosi. Salah satu cara untuk memperlambat laju korosi adalah dengan cara coating. Coating atau pelapisan adalah cara yang paling sering digunakan untuk memperlambat laju korosi karena lebih efektif, mudah diaplikasikan. Kajian ini bertujuan untuk mengetahui pengaruh jumlah pelapisan dan jarak pelapisan spray coating terhadap kekasaran permukaan serta laju korosi. Variasi yang digunakan adalah variasi jumlah pelapisan sebanyak 1 lapis, 2 lapis, dan 3 lapis, serta variasi jarak pelapisan 10 cm, 15 cm, dan 20 cm. Metode yang digunakan untuk menghitung laju korosi adalah weight loss. Hasil pengujian menunjukkan kekasaran yang paling bagus pada spesimen 3 lapis dengan jarak 10 cm, yakni nilai sebesar 0,857 m dan laju korosi yang paling rendah pada spesimen 3 lapis dengan jarak 20 cm, yakni nilai sebesar 2,376 mpy. Jarak yang paling baik untuk pelapisan adalah tidak terlalu dekat dan terlalu jauh. Jarak yang terlalu dekat menyebabkan cat akan meleleh (runs) dan jumlah cat yang menempel menjadi banyak, sehingga lapisan akan terlalu tebal dan halus. Jarak pelapisan yang terlalu jauh menyebabkan cat akan sedikit menempel dan menyebabkan cat mengering sebelum menempel pada media, sehingga menjadi tipis dan kasar. Semakin banyak jumlah pelapisan akan semakin baik dalam menghambat laju korosi.
Pemanfaatan limbah bunga pinus menjadi bio-oil dengan penambahan variasi konsentrasi katalis Mo/lempung menggunakan metode pirolisis
Authors: Manullang Ramlan , Saleh Arif Rahman , Dewi Rany Puspita
Published: October 2023

Dalam era modern ini, konsumsi energi yang tinggi dalam perkembangan teknologi menimbulkan potensi krisis energi karena keterbatasan sumber energi fosil yang tidak dapat diperbaharui. Salah satu solusi yang dapat dikaji adalah penggunaan energi terbarukan dengan memanfaatkan biomassa. Kajian ini bertujuan untuk mengonversi limbah bunga pinus menjadi bio-oil melalui proses pirolisis dengan bantuan katalis Mo/lempung, untuk mengetahui pengaruh penambahan katalis Mo/lempung terhadap yield bio-oil yang dihasilkan dan menganalisis perbandingan karateristik fisika bio-oil hasil pirolisis limbah bunga pinus dengan bahan bakar solar. Variasi konsenterasi katalis yang digunakan yaitu 0% (tanpa katalis), 7%, 9%, dan 11% dengan pengembanan logam Mo sebesar 1% dari massa katalis. Pirolisis dilakukan pada suhu 320°C selama 120 menit tanpa oksigen, kemudian didestilasi untuk menghilangkan air dari bio-oil. Hasil kajian menunjukkan bahwa penambahan katalis Mo/lempung memiliki pengaruh positif terhadap yield dan karakteristik fisika bio-oil yang dihasilkan. Hasil terbaik dicapai pada konsentrasi katalis 9%, dengan massa jenis 1,008 gr/ml, viskositas 49,603 cSt, dan nilai kalor 8.266,4981 kal/g. Namun demikian, bio-oil dari limbah bunga pinus belum dapat secara langsung digunakan sebagai bahan bakar pengganti biosolar.
Sistem inventory pengendalian persediaan fast moving spare part dump truck barbasis metode min-max stock
Authors: Hidayati Nurul , Braam Delfian Prihadianto
Published: October 2023

Manajemen perawatan merupakan suatu rangkaian kegiatan yang mencakup perencanaan, pengarahan, pelaksanaan, pengendalian, dan evaluasi untuk memperbaiki kondisi fasilitas tertentu agar mencapai target yang telah ditetapkan. Kajian ini bertujuan untuk melakukan analisis tingkat permintaan spare parts kategori fast moving pada unit dump truck, melakukan analisis jumlah minimum dan maksimum persediaan spare parts yang harus tersedia di gudang, serta memberi rekomendasi kepada PT AHG terkait manajemen persediaan spare parts berbasis metode min-max dengan pembuatan sistem informasi safety inventory. Manajemen perusahaan sebelumnya, belum menerapkan pendekatan sistematis untuk mengatasi fluktuasi ini, perlu dikembangkan melalui metode yang lebih adaptif. Metode yang digunakan adalah metode kuantitatif dengan mengintregasikan manajemen persediaan dan kebijakan lain, meliputi observasi dan wawancara serta pengumpulan dan pengolahan data. Data yang digunakan mencakup data pemakaian spare parts selama Januari hingga Desember 2022 dengan objek kajian berupa filter oli, filter solar, dan kampas rem pada unit dump truck. Hasil analisis menunjukkan terdapat fluktuasi yang signifikan dalam tingkat permintaan spare parts kategori fast moving pada unit dump truck sepanjang periode Januari hingga Desember 2022, terutama pada awal dan akhir tahun. Fluktuasi ini kemungkinan disebabkan oleh faktor musim, periode liburan, dan kebutuhan proyek baru yang mempengaruhi permintaan spare parts dalam kegiatan pemeliharaan dan perbaikan.
A Corpus-Based Comparative Study of English Synonyms: Taking Improve, Promote, and Strengthen as an Example
Authors: Liu Yaru
Published: October 2023

As synonyms account for more than 60% of English vocabulary, improving the ability to distinguish synonyms will help speakers produce language in a more precise and efficient manner. This paper adopts a corpus-based approach to explore the usage of synonymous words in terms of language register, collocates and semantic prosody, exploring how these synonyms are used by native speakers and hoping to offer some guidance to English learners and translators.
The Development of the Financing Leasing System in China
Authors: Liu Jia , Huang Rui-Yang
Published: October 2023

The development of the financing leasing system in China has been relatively slow. This paper primarily introduces the regulations on the financing leasing system by Article 388 of the Chinese Civil Code and related clauses. It addresses the characterization of ownership or security rights, as well as regulations on priority of rights, defective security responsibility, liability for damage to others, maintenance obligations, risk of destruction or loss, public notice, breach remedies, and right enforcement. Furthermore, this paper highlights the differences in regulatory frameworks for movable and immovable property financing leasing in China. Chinese law does not explicitly address issues related to immovable property financing leasing, as it focuses on the functionality of guarantees for movable property and rights due to the clear ownership registration authorities for immovable property, eliminating the issue of "hidden guarantees." Article 65 of the Interpretation of the Civil Code provides comprehensive regulations on the functionalization of financing leasing guarantees.
The Upshot of Nonlinear Thermal Emission on a Conducting Jeffrey Nanofluid Flow over a Stretching Sheet: A Lie Group Approach
Authors: Yabo Isah Bala , Williams Michael , Mustafa Aminu , Ahamd Audu
Published: October 2023

The upshot of nonlinear thermal radiation of steady state MHD heat transfer of Jeffrey nanofluid together with prescribed boundary conditions of interest was studied. Essential fluid properties, dimensionless switch parameters with the assistance of the Lie group method were used to transform the convenient partial differential equations that describe the present model into a system of ordinary differential equations. The generalized flow of the present model incorporates Jeffrey parameters and nonlinear thermal radiation. The Mathematical model is first renovated into ordinary differential equations by Lie symmetry group alteration. The renovated equations were solved numerically using a bvp4c MATLAB solver. The Jeffrey parameter serves as a stabilizer on the velocity of the fluid while thermal radiation parameter and heat source-sink parameter improves the flow temperature. Lewis number, chemical reaction parameter diminished the mass transfer flow. Equally skin friction, Sherwood number and Nusselt number were expanded.