bluuebunny/crossref_metadata_2025 huggingface dataset:
ANALISIS PENGARUH PRODUKSI KARET DAN SAWIT TERHADAP PDRB SEKTOR PERTANIAN, KEHUTANAN DAN PERIKANAN DI PROVINSI JAMBI TAHUN 2014-2018
Authors: Sari Yolanda , Suryani Ade Irma , Islahudin Islahudin
Published: August 2021

Sektor Pertanian, Kehutanan dan Perikanan merupakan sektor basis pada PDRB di Provinsi Jambi dengan subsektor perkebunan pada komoditi karet dan sawit yang merupakankomoditi dengan angka produksi tertinggi. Penelitian ini bertujuan untuk mengetahuibagaimana perkembangan produksi karet dan sawit serta bagaimana pengaruh produksi karetdan sawit terhadap PDRB sektor pertanian, kehutanan dan perikanan di Provinsi Jambi baiksecara parsial maupun secara simultan.Data yang digunakan dalam penelitian ini adalah data sekunder berupa data produksikaret, produksi sawit dan data PDRB pada sektor pertanian, kehutanan dan perikanan diProvinsi Jambi pada tahun 2014-2018. Metode pengolahan data menggunakan rumusperkembangan dan analisis regresi linier berganda.Hasil analisis untuk perkembangan, produksi karet mengalami peningkatan setiaptahunnya kecuali tahun 2018, sedangkan produksi sawit mengalami perkembangan yangberfluktuasi. Hasil analisis untuk persamaan regresi linier berganda adalah sebagai berikut :Y = -297140225,439 + 964,454 X1 + 22,902 X2 dengan X1 Produksi Karet, X2 ProduksiSawit, dan Y adalah PDRB Sektor Pertanian, Kehutanan dan Perikanan. Kemudian dari hasilanalisis diperoleh hasil bahwa X1 dan X2 berpengaruh signifikan terhadap Y. Berdasarkanhasil penelitian ini dapat disimpulkan beberapa hal sebagai berikut: 1) Produksi Karet danSawit rata-rata mengalami pertumbuhan dari tahun ke tahun. 2) Produksi Karet dan ProduksiSawit secara parsial maupun simultan berpengaruh signifikan terhadap PDRB sektorpertanian, kehutanan dan perikanan di Provinsi Jambi.
ANALISIS PREDIKSI KEBANGKRUTAN PADA INDUSTRI OTOMOTIF
Authors: Suryani Ade Irma , Handayani Rahmi
Published: August 2021

Penelitian ini bertujuan untuk menganalisis kondisi perusahaan menggunakan metode Altman Z-Score dalam memprediksi potensi kebangkrutan pada 12 perusahaan otomotif yang terdaftar di Bursa Efek Indonesia tahun 2015 ÃƒÂ¢Ã¢â€šÂ¬Ã¢â‚¬Å“ 2018. Pengambilan sampel menggunakan teknik purposive sampling dan diperoleh sampel sebanyak 8 perusahaan otomotif.
Pertumbuhan penjualan dan asset yang dimiliki perusahaan otomotif yang terdaftar di Bursa Efek Indonesia pada tahun 2015 ÃƒÂ¢Ã¢â€šÂ¬Ã¢â‚¬Å“ 2018, menunjukan tiga perusahaan yakni PT Astra Otoparts Tbk, PT Indo Kordsa Tbk dan PT Selamat Sempurna Tbk selalu mengalami peningkatan pada penjualannya dan tiga perusahaan yakni PT Astra International Tbk, PT Astra Otoparts Tbk dan PT Indomobil Sukses Internasional Tbk selalu mengalami peningkatan pada assetnya. Sedangkan untuk perusahaan lainnya mengalami fluktuasi dalam penjualan dan assetnya.
Hasil dari analisis kebangkrutan mengunakan metode Altman (Z-Score) pada tahun 2015 sampai dengan 2018 menunjukkan perusahaan  PT Selamat Sempurna Tbk sebagai perusahaan satu-satunya diantara perusahaan otomoyif lainnya yang berada dalam kategori baik atau sehat, karena ditinjau dari nilai Z-Score yang diperoleh PT Selamat Sempurna Tbk menunjukkan hasil melebihi standar (Z-Score > 2,99) serta tidak ada nilai rasio yang bernilai negatif, hal ini menunjukkan kinerja keuangan perusahaan tersebut baik. PT Goodyear Indonesia Tbk dan PT Indomobil Sukses Internasional Tbk berada dalam kategori rawan (grey area)dimana perusahaan tersebut tidak dapat ditentukan apakah termasuk perusahaan yang bangkrut atau tidak, namun memiliki potensi kebangkrutan, karena ditinjau dari nilai Z-Score perusahaan menunjukkan hasil 1,81 < Z-Score < 2,99. PT Astra Otoparts Tbk, PT Multistrada Arah Sarana Tbk dan PT Prima Alloy Steel Universal Tbk dikategorikan sebagai perusahaan yang memiliki kesulitan keuangan yang sangat besar dan berisiko bangkrut, karena ditinjau dari nilai Z-Score perusahaan menunjukkan hasil Z-Score < 1,81. PT Astra International Tbk dan PT Indo Kordsa Tbk dikategorikan rawan dam perusahaan memiliki kesulitan keuangan yang sangat besar dan berisiko bangkrut.
ANALISIS PERSEPSI TINGKAT KEPUASAN MASYARAKAT TERHADAP KINERJA PELAYANAN RUMAH SAKIT UMUM RADEN MATTAHER JAMBI
Authors: Winarni Etik , Putra Iwan Eka , Prasetia Mutia Wita
Published: August 2021

Pelayanan publik ini  merupakan sebuah perusahan jasa seperti rumah sakit harus menjaga kualitas jasa yang ditawarkan karena bila kualitas jasa yang didapatkan oleh konsumen melebihi harapannya maka akan terbentuk suatu loyalitas konsumen terhadap rumah sakit tersebut begitupun sebaliknya. Berdasarakan latar belakang diatas maka peneliti tertarik untuk menganalisa lebih jauh tentang ÃƒÂ¢Ã¢â€šÂ¬Ã…â€œAnalisis Persepsi Tingkat Kepuasan Masyarakat Terhadap Kinerja Pelayanan Rumah Sakit Umum Raden Mattaher JambiÃƒÂ¢Ã¢â€šÂ¬Ã‚Â. Data yang dianalisis  menggunakan  Uji validitas dan reliabilitas untuk data kuesioner dan  importance performance Analysis (IPA). Dari hasil analisis dan pembahasan penelitian Kualitas pelayanan terletak pada Kuadran I dilaksanakannya pelayanan oleh Perawat segera menghubungi dokter mengenai obat dan makanan Pasien serta perawat memastikan keluhan keluarga pasien dianggap penting tetatpi kenyataannya kinerjanya belum sesuai seperti yang diharpakan yang dinilai responden memiliki arti penting dan kinerja rendah dalam menjaga kualitas pelayanan rumah sakit. Faktor-faktor yang terletak pada kuadran 2 ini dinilai responden memiliki arti penting dan kinerja sangat tinggi dalam menjaga kualitas pelayanan rumah sakit. Variabel yang terletak pada kuadran III dinilai oleh responden memiliki arti penting yang sangat tinggi tetapi memiliki hasil kinerja sangat rendah, yang artinya setiap hasil responden dalam tiap variabel-variabel tersebut memiliki hasil kinerja sangat rendah. Dengan demikian pihak pengelola perlu  memberikan perhatian terhadap faktor-faktor tesebut sehingga dalam keberadaan Tangibility,Reliability, Responsiveness, Assurance, Empaty untuk dapat ditingkatkan kinerjanya sesuai dengan perkembangan kebutuhan masing-masing pihak dengan tujuan kualitas pelayanan rumah sakit. Kualitas pelayanan terletak pada Kuadran IV dilaksanakannya pelayanan oleh Perawat melaporkan segala detail perubahan pasien kepada dokter sewaktu melakukan kunjungan Penilaian kondisi pelayanan kinerjanya cukup baik namun dipandang cenderung berlebihan.
ANALISIS PERAN KREDIT PERBANKAN DALAM PENDANAAN USAHA MIKRO, KECIL, DAN MENENGAH (UMKM) SERTA HUBUNGANNYA DENGAN PERTUMBUHAN EKONOMI DI PROVINSI JAMBI
Authors: Anngraini Dessy
Published: August 2021

Penelitian ini bertujuan untuk: (1) menganalisis perkembangan kredit Usaha Mikro, Kecil, dan Menengah (UMKM) di Provinsi Jambi, (2) menganalisis faktor-faktor yang mempengaruhi kredit Usaha Mikro, Kecil, dan Menengah (UMKM) di Provinsi Jambi dengan menggunakan metode regresi data panel, dimana kredit UMKM (UMKM) sebagai variabel dependent, tingkat suku bunga (R), pendapatan perkapita (PKP), dan jumlah unit usaha (JU) sebagai variabel independent, (3) menganalisis hubungan kredit Usaha Mikro, Kecil, dan Menengah (UMKM) dengan pertumbuhan ekonomi di Provinsi Jambi menggunakan korelasi pearson.
Hasil pengujian estimasi persamaan data panel menggunakan model REM menunjukkan bahwa secara simultan variabel suku bunga rill, pendapatan perkapita, dan jumlah unit usaha berpengaruh signifikan terhadap kredit UMKM dengan nilai siginifikansi F statistik sebesar 88,82. Hasil estimasi secara parsial diperoleh hasil variabel tingkat suku bunga rill berpengaruh signifikan terhadap kredit UMKM ditunjukkan dengan nilai signifikansi t statistik sebesar -2,866967, sedangkan variabel pendapatan perkapita, dan variabel jumlah unit usaha tidak berpengaruh signifikan terhadap kredit UMKM karena perolehan masing-masing nilai signifikansi t statistik sebesar 0,662959 dan -0,259486. Hasil analisis korelasi pearson menunjukkan bahwa hubungan kredit UMKM terhadap pertumbuhan ekonomi di Provinsi Jambi sangat kuat dengan nilai koefisien korelasi sebesar 0,391 dengan arah positif dan tidak signifikan 0,444
Eucalyptus globulus Methanol Leaf Extract Improves Glycosylated Hemoglobin, Lipid Profile Levels and Haematological Sub-inflammatory Biomarkers in Streptozotocin-induced Diabetic Rats
Authors: B.S Ajilore , J.O Fatoki , T.A. Abayomi
Published: August 2021

Background: Eucalyptus leaf is used traditionally to treat a lot of diseases, but little is known about its use in the management of diabetes mellitus (DM) and its complications. Objectives: Antidiabetic property of Eucalyptus globulus leaf extract (EGLEX) was assessed on recent Makers of therapeutic response and diabetic disease progression in streptozotocin-induced diabetic rats. Methods: Eucalyptus globullus leaf powder (200 g) was extracted with methanol using standard procedure. Hyperglycemia was induced in Wistar rats with single intravenous dose of 50 mg/kg/bwt streptozotocin. The rats were divided into five groups (n = 5): Anormal control, B- diabetic control, C, D and E were diabetic rats treated with Eucalyptus globullus leaf extract (EGLEX), metformin and insulin respectively for four weeks. Samples were collected for biochemical and hematological studies. Data obtained were analysed using One Way Analysis of Variance at <0.05 significance level. Results and Conclusion: The results showed significant (p<0.05) blood glucose reduction of 68%, 51% and 68%, and weight gain of 17%, 18% and 11% in rats treated with EGLEX, metformin and insulin respectively. HBA1c level was significantly (p<0.05) raised (9.30%) in diabeticuntreated rats when compared with normal control (3.77%), EGLEX (4.24%), metformin (4.94%) and insulin (5.33%) groups. The deranged lipid profile indices, malondialdehyde and reduced glutathione levels, superoxide dismutase activity, platelet count, % neutrophil and % lymphocyte were normalized in diabetic rats treated with EGLEX when compared with the values in diabetic untreated rats. The findings concluded that EGLEX possesses antidiabetic property and improves biomarkers of diabetic disease progression.
Anti-Ulcerative Colitis Activity of the Aqueous Leaves Extract of Khaya Senegalensis in Acetic Acid-Induced Colitis Rat Model
Authors: S.L Abdul Aziz , A.O Jimoh , A Yunusa , Y Abdul mumini
Published: August 2021

intestinal tract mainly colon. The disease is characterized by diarrhoea, blood in the stool, abdominal pain, and weight loss. Khaya senegalensis a plant commonly called dry zone Mahogany has been used as a remedy for several human gastrointestinal ailments. Objectives: To investigate the effect of aqueous leaves extract of Khaya senegalensis in the acetic acid-induced ulcerative colitis rat model. Study design: Preclinical randomised controlled trial. Methods: extraction was done using water, initial phytochemical screening and oral LD50 were determined. Colitis was induced in rats using 4% acetic acid administered intra rectally. The rats were divided into five groups, group 1 received water, groups 2, 3, and 4 received graded doses of leaves extract while group 5 received prednisolone as the positive control. Symptomatic parameters like the daily stool consistency and appearance and histological parameters such as ulcer area, lesson severity score, ulcer index, weight/length ratio and percentage cure were measured. Results; The leaves extract showed presence of alkaloids, tannins, flavonoids, saponins, steroids, volatile oil etc. The oral LD50 was greater than 5000mg/kg and the efficacy of the 400mg/kg extract administered group was not statistically significantly different from the positive control group that received the standard drug prednisolone. Conclusion: It can be concluded that the aqueous leaves extract of Khaya senegalensis possess significant anti-ulcerative colitis activity on acetic acid-induced ulcerative colitis rat models and appears to be safe.
The Burden of Obesity in Nigeria
Authors: M.B. Abubakar , A.O Fatola , K.O Sanusi , K.G Ibrahim
Published: August 2021

Background and Aims: Over the years, obesity has become a global health concern. According to the World Health Organization, as at 2016, the world has experienced over four-fold increase in obesity within four decades. This public health crisis has taken its toll in Nigeria with a reported prevalence of 14% as at 2020. This review thus seeks to assess available evidence on the burden of obesity, associated co-morbidities, risk of non-communicable diseases, and available management strategies in Nigeria. Methods: This narrative review was conducted on research articles retrieved without date restriction. The databases assessed were PubMed, Web of Science, Science Direct, and Google Scholar databases, as well as reference lists of relevant articles. The search terms used were “obesity in Nigeria”, “burden of obesity” “obesity co-morbidities”, and “obesity care.” Results: Studies have indicated that sedentary lifestyle, poor nutritional choices as well as genetic alterations are some of the causes of obesity in Nigeria. With the increasing prevalence of obesity, its associated co-morbidities, the current economic situation of the country and low accessibility to affordable healthcare services, it is currently a burden to healthcare professionals and the country at large. Conclusions: There is a need for the Nigerian government to focus more on healthcare development to cater for the increasing population and mitigate obesity occurrence. Moreover, there is a need for national orientation and sensitization on predisposing factors to obesity.
Exploring the benefits and challenges of administrative clinical supervision in nursing and midwifery
Authors: Achempim-Ansong Gloria , Kwashie Atswei Adzo , Ansah Ofei Adelaide
Published: August 2021

Objective: To explore the benefits and challenges of administrative clinical supervision at the unit.Methods: Clinical Supervision has been recognised as a core component of professional support for present-day nursing and midwifery practice. Effective administrative clinical supervision is beneficial to employees by providing support leading to the development of self-esteem, reducing emotional stress and improving commitment to an organisation’s vision and goals. Using aesthetic phenomenological approach, nurses' lived experience with administrative clinical supervision in a clinical unit of the hospital was explored and allowed in-depth description of administrative clinical supervision thoroughly. The participants were purposively sampled from six hospitals in Accra and comprised supervisors (n = 18) and supervisees (n = 12).Results: The benefits of administrative clinical supervision include reduction in infection rates, improved competence, client satisfaction, reduction in negligence, efficiency, accountability and feeling of being appreciated. Challenges of administrative clinical supervision were managerial challenges, limited time, interpersonal conflict with colleagues, and increased workload.Conclusions: Practical Implications: Administrative clinical supervision has implications for nursing and midwifery education and practice. This calls for measures that promote practitioners’ personal and professional development through fostering a supportive relationship and working alliance. Originality: This study employed the use of Aesthetic Phenomenology to tell the stories of clinical supervision from the personified interpretations unlike other studies that simply adopt descriptive phenomenology. It is the first of its kind in Ghana to the best of our knowledge.
Effects of information and communication technology use in nursing and obstetric learning in low- and middle-income countries: A systematic review
Authors: Hermann Pilabré Arzouma , Patrice Ngangue , Nestor Bationo , Abibata Barro , Yacouba Pafadnam , Dieudonné Soubeiga
Published: August 2021

Introduction and objective: Studies on the effects of information and communication technology (ICT) use in nursing and obstetric learning in low- and middle-income countries are limited despite growing scientific evidence that online learning has positive effects. This systematic review aims to identify and synthesize the effects of information and communication technologies utilization in nursing and obstetric learning in low- and middle-income countries.Methods: A search of articles published from 2016 to 2020 on the effects of ICT use in nursing and obstetric learning was conducted in PubMed, CINAHL, Epistemonikos and ERIC.Results: Of 483 articles identified, eleven were reviewed, and eight were found to be relevant. The included articles were synthesized into a narrative synthesis. The effects of using ICT in learning are related to student motivation, autonomy in learning, meaningful acquisition of knowledge and skills. Furthermore, students have a positive perception of the use of ICT in learning.Conclusions: The results of this study on the use of ICTs in nursing and obstetric sciences learning in low- and middle-income countries show that ICTs are used primarily as a medium for distance learning. In addition, it was found that e-learning has several advantages or positive effects. However, many students do not have a personal computer, and they have low or average skills in the use of computer tools, and access to the Internet is low. A limitation of this study is the lack of primary data on the effects of ICT use in obstetric sciences learning in low- and middle-income countries.
High Fidelity Simulation and the Development of Clinical Judgment in Senior Nursing Students: A Mixed Method Approach
Authors: Nilphet Warongrong
Published: August 2021

Clinical judgment is defined as an understanding and interpretation regarding patient’s needs, health problems or concerns (Tanner, 2006). There are four interrelated processes in Tanner’s model that consist of noticing, interpreting, responding, and reflecting (Tanner, 2006). Because clinical judgment is extremely complex and encompasses many ways of thinking and types of knowledge, it requires a flexible capability to identify significant features of indeterminate clinical circumstances. Mixed methods study was conducted to describe senior nursing students’ experience in using high-fidelity simulation to evaluate the development of clinical judgment skills. A convenience sampling of 30 senior nursing students who signed the consent, met the inclusion criteria, and attend the selected school of nursing in the fall of 2020 were used for this study. All participants answered questionnaires regarding the quantitative survey. Participants interviewed face-to-face and video call using Zoom meeting program and recorded using an audio recorder. Both the quantitative and qualitative findings identified that learning through high-fidelity simulation supports the improvement in the participants’ clinical judgment skills. All participants reported their perceptions and experiences from using high-fidelity simulation develop and support their clinical judgment skills from the beginning through the end of the simulation, especially improving prioritizing data and working as a team with providing effective communication.
English Language Teachers’ Perceptions of PAAET’s Professional Development Programs: Implications on Guideline Formulation for Training Programs
Authors: Alzankawi Maisoun A. , Alenezi Yousef M.
Published: August 2021

Teachers’ professional development is a life-long and continuous process in which teachers are expected to upgrade their knowledge, master new skills, and change their practices, since advancement in their teaching career has an impact on their students’ achievement and education reform. This study determines the teachers’ assessment of professional development programs at the Public Authority for Applied Education and Training (PAAET) in Kuwait. The study utilized a quantitative research method using a survey questionnaire, which was distributed online to 31 in-service teachers. Results indicated the infrequency of teachers’ development program in the institution. Teachers who had stayed at least nine years had undergone 1 to 3 training programs. Training on soft skills is perceived to be relatively more effective than training on hard skills. Nevertheless, majority of the teachers attended relatively more hard-skills training than soft-skills training programs. Thus, hard-skills training should further be planned to improve effectiveness since more training is provided in these areas.
The Effect of Internal and External Conflicts on the Country Trade and Economic Growth: Case from Emerging and Developed Countries
Authors: Jafarzadeh Elham , Shuquan He
Published: August 2021

The current study investigates the impact of internal conflicts and external conflicts on the overall trade of a country, imports and exports in both developed and emerging markets. The study has used 128 countries for the estimation with data collected from the world bank for the period of 1996 and 2016 using the Hausman test. The results of the random effect showed that internal conflicts and external conflicts have negative impact on the imports and exports of countries in both developing and developed economies.

The findings of the current study have several implications for both academicians and practitioners. The study has provided a deep insight in to the role of internal and external conflicts (a commonly emergent issue) for international trade and economic growth in both developing and developed countries. The current study has broadened the scope of literature on international finance and trade by providing a unique empirical examination on the role of conflicts in international trade and economic growth which is rarely been examined in the literature. Moreover, the study has some practical implications for the policymakers and government to make their international relations as such that to avoid internal and external conflicts if they want to increase international trade and economic growth. More specifically in developing countries there is more prevalence of internal and external conflicts which is the route cause of the lower level of international trade and is one of the important cause of lower level of economic growth.
Performance Analysis of Gas Turbine Inlet Air Cooling Plant with Hybrid Indirect Evaporative Cooling and Absorption Chiller System
Authors: MORADİ Amir , MASOOMI Mina , SALEHİ Gholam Reza , KHOSHGOFTAR MANESH Mohammad Hasan
Published: August 2021

To generate electricity, Gas Turbine Power Plants are extensively used around the world but their efficiency is negatively affected on hot days by ambient air temperatures. efficiency and output power will decrease by 2% and 12.5% respectively at ambient temperature 40°C due to lower air density and the resulting increase in compressor specific work.

Ordinarily, cooling down the intake air of the gas turbine is facilitated by employing a variety of Turbine Inlet Air cooling Systems (TIACSs), depending on the plant’s immediate weather conditions. This paper studies a new hybrid cooling method, combined cooling systems (IECS + Absorption Chiller), used for a 157 MW gas power plant located in Asalouyeh in southern Iran. The Performance and Thermo-Economic analysis revealed that the annual power output can be 62,090 MW, the net income generated by the increased electricity sales can be $ 3,670,000 for a 60% period of the year while Payback Period is found to be 1.56 years.
Simulation of VOC Emission During Loading Operations in a Crude Oil Tanker
Authors: Virdi S S , Lee L Y , Li C , Dev A K
Published: August 2021

“Volatile Organic Compounds” (VOCs) are known to contribute significantly to environmental pollution. Crude oil loading operations in a marine oil tanker produces a significant quantity of hydrocarbon (HC) vapours in the surrounding atmosphere. A large percentage of these HC vapour emission consists of ‘Volatile Organic Compounds’ (VOCs). This VOC emission has not been previously analysed in detail to understand health and environmental impact. The scope of the study reported in this paper demonstrates the use of chemical processing simulation software (Aspen HYSYS ®) to model and identify significant VOCs in this HC vapour emission during crude oil loading operations. The objective is to determine the detailed variation in the volume and the composition of the HC vapour emission and hence, VOCs, as the level in a ship's tank rises while being filled and the influence of crude oil temperature and pressure in the filled tank has on the extent of VOC emission. Total VOC emission per tonne of crude oil is calculated and compared with other similar field measurements. The analysis identifies the concentration of toxic VOCs in the hydrocarbon emission, as well as the liquid fraction lost in the loading operation. The simulation data is analysed for crude oil temperature between 10°C to 45°C and tank level from empty to 90% full. The resulting information is useful to assess the environmental and health impact and efficiency of the current crude oil loading operations. Potential to recover the monetary loss by increasing tank pressure and installation of the 'VOC Recovery Unit' is analysed.
Tanker Selection Based on an Entropy-Weighted Fuzzy Matter Approach
Authors: Li Haoqiang , Chen Jihong , Wan Zheng , Cao Xiao , Shu Yaqing , Bai Yun
Published: August 2021

As an important aspect of global economic development, the choice of ship type for offshore oil transportation is a key issue in shipping companies making investment decisions. These can have far-reaching impacts regarding economic benefits and operational developments by shipping companies. To facilitate relatively accurate scientific decisions to evaluate the economic nature of tankers on investment plans, the study assigns entropy weights to various indicators and models tanker type economic arguments based on the entropy-weighted fuzzy matter-element approach, and by calculating the Euclid approach degree of each tanker evaluates the choice of tanker ship type. The results from the study show that the entropy-weighted fuzzy matter-element method is very effective in dealing with tanker selection and decision-making under complex and multi-attribute scenarios. Several conclusions are drawn and further work suggested.
Adopting Industry 4.0 Technologies in Shipbuilding Through CAD Systems
Authors: Muñoz J A , Perez-Fernandez R
Published: August 2021

Technologies are evolving faster than our capability to develop applications that bring us the value we can get from them. The potential is clear and the opportunity will be for those who identify the right application for each technology. One of the foundations of the fourth industrial revolution is the ability to handle huge amounts of data that is everywhere and available to anyone, thanks to the evolution in communication technologies. However, data is not information; it is necessary to have the capability to analyse, then extract conclusions and to learn from both. Technologies, such as Big Data (BD), Machine Learning (ML) and Artificial Intelligence (AI), give the capability to do this, but what really matters is how it is applied. Those who are able to recognise the value of analysing data correctly, to transform it into information and apply it to the improvement of the design, manufacturing, operation and maintenance processes will be successful in the industrial transformation that is taking place. This skill requires practitioners to make the best decisions and ultimately optimise the life cycle of the industrial products. Some of the fields of application of these technologies are already evident. It is possible to imagine how these technologies can enable ship design by applying rules, which will facilitate the design significantly. Equally, by integrating the validation of the structural models by the Classification Societies and much of the design through cloud based applications. The adoption proposed in this article is based on the evolution of CAD applications towards a central data model and with the aim of achieving a true Digital Twin. With a real and effective synchronization between what is designed, manufactured and what is operated, making it possible to cover the complete life cycle of the product. In this process, it is also very important to consider peoples experiences. It is necessary to understand how the new generations are immersed in a technological world, which is in a constant and rapid evolution. This interaction with this ecosystem will determine how the new rules should be defined for the CAD/CAM/CIM Systems. This paper examines some practical use cases in the design phase of shipbuilding as an example of what new technologies could provide ship design and shipbuilding in the near future.
An Analysis of Carcass Layer Erosion in Un-Bonded Flexible Offshore Pipework
Authors: An C , Gu C W , Qin H , Li T T , Duan M L
Published: August 2021

In this paper, a simplified model for erosion in un-bonded flexible pipes caused by the sand entrained in the produced fluid is established. Flow field analysis is performed based on the governing equations of the continuous fluid and the discrete particles. A two-way coupled Eulerian-Lagrangian approach is employed to solve the gas-solid flow in the pipe bend. To eliminate the influence of the length of the straight pipe section on the stability of the flow field in the pipe, the flow field distribution under different lengths is analyzed to determine the optimal straight pipe length. Six commonly used erosion models are adopted to predict the erosion rate. After comparing the prediction results with experimental data, the most accurate Oka model is selected to calculate the effect of the fluid and structure parameters on erosion. Effects of particle parameters and pipe structural parameters on the erosion rate of curved flexible pipes are numerically fitted, and the quantitative description is given.
Distributed Ship Service Systems Architecture in The Early Stages of Designing Physically Large and Complex Vessels: The Submarine Case
Authors: Mukti M H , Pawling R J , Andrews D J
Published: August 2021

In the initial sizing of complex vessels, where recourse to type ship design can be overly restrictive, one crucial set of design features has traditionally been poorly addressed. This is the estimation of the weight and space demands of the various Distributed Ship Services Systems (DS3), which include different types of commodity services beyond those primarily associated with the ship propulsion system. In general, naval vessels are typified by extensive and densely engineered DS3, with the modern naval submarine being at the extreme of dense outfitting. Despite this, the ability for the concept designer to consider the impact of different configurations for the DS3 arrangements has not been readily addressed in concept design. This paper describes ongoing work at University College London (UCL) to develop a novel DS3 synthesis approach utilising computer tools, such as Paramarine™, MATLAB®, and CPLEX®, which provide the concept designer with a quantitative network-based evaluation to enable DS3 space and weight inputs early in the design process. The results of applying the approach to a conventional submarine case study indicate quantitative insights into early DS3 sizing can be obtained. The paper concludes with likely developments in concluding the research study.
Process - Property Correlation of Friction Stir Welding of Marine Grade Aluminium Alloy 5083 Using Finite Element Analysis
Authors: Sahu M , Paul A , Ganguly S
Published: August 2021

In this article, a 3D finite element based thermo-mechanical model for friction stir welding (FSW) of a marine-grade aluminium alloy 5083 is proposed. The model demonstrates the thermal evaluation and the distribution of residual stresses and strains under the variation of process variables. The temperature profile of the weld joint during the FSW process and the mechanical properties of the joints are also experimentally evaluated. The necessary calibration of the model for the correct implementation of the thermal loading, mechanical loading, and boundary conditions was performed using the experimental results. The model simulation and experimental results are analyses in view of the process-property correlation study. The residual stress was evaluated along, and across the weld, centreline referred as longitudinal and transverse residual stresses, respectively. The magnitude of longitudinal residual stress is noted 60-80% higher than that of the transverse direction. The longitudinal residual stress generated a tensile oval shaped stress region around the tool shoulder confined to a maximum distance of about 25mm from the axis of the tool along the weld line. It encompasses the weld-nugget to thermo-mechanically affected zone (TMAZ), while the parent metal region is mostly experiences the compressive residual stresses. However, the transverse residual stress region appears like wing shaped region spread out in both the advancing and retreating side of the weld and occupying approximately double the area as compared to the longitudinal residual stresses. Overall, the study revealed a corelation between the FSW process variables such as welding speed and the tool rotational speed with the residual stress and the mechanical properties of the joint.
Proposed Design Criteria for a Bilge Pumping System for Large Container Ships
Authors: Lee K W , Han G Y , Kim M E
Published: August 2021

The IMO’s Goal-Based Standards (GBS) in the Safety of Life at Sea Convention (SOLAS) sets the high-level goals (GBS Tier 1 and 2) and classification societies acting as recognized organizations (ROs) should develop detailed rules and regulations in order to meet the goals (GBS Tier 4). Even though the GBS requirements are applicable to new build construction standards of bulk carriers and oil tankers at present, given that IMO may develop goal-based standards for other safety areas, it will be meaningful to examine the bilge pumping system requirements in the context of principles of Goal-Based Standards. The bilge pumping system is one of the most important systems in ships but there is no requirement for its performance except for the 2 m/s speed of water requirement and the internal diameter of bilge main prescribed in SOLAS. The purpose of this study is to quantitatively evaluate bilge pumping performance of actual ships in service and to propose an alternative set of performance standards. The rules of Classification Societies were investigated, and the bilge pumping performance was quantitatively evaluated using specifications of a 14,000 TEU class container ship. As a result of the investigation, it was found that satisfying the 2 m/s requirement under many operating conditions was impossible, and the rules and regulations to determine the internal diameter of bilge main and the capacity of bilge pump did not meet intended purpose of the 2 m/s speed of water requirement. Finally, a set of design criteria are proposed to fulfil the intended purpose of the 2 m/s requirement of SOLAS.
Infrared Signatures in The Modern Warship
Authors: Pernas Urrutia J M , Villa Caro R , José de Espona R , Heritier C , Perez-Fernandez R
Published: August 2021

A key aspect in design of the modern warship from the point of view of energy efficiency is undoubtedly the selection of its propulsion system. A large part of the total Infrared (IR) radiation emitted by the ship will be originated from propulsion, because not all the energy generated will be transformed into effective work. The remaining energy will contribute directly to the IR signature of the warship as a whole, thus increasing its susceptibility and, therefore, its casualty. The aim of this article is to describe the main sources of IR signature on frigates and destroyers, current and future IR signature reduction countermeasures, and present the results of an Infrared Control Measures (IRCM) study in which the vessel's ability to dissuade aerial threats through the use of deception techniques, within a stated energy efficiency scenario, is analysed. In conclusion, electrical variants to warship propulsion systems are more efficient under the same operating conditions, and their associated reduction of waste energy contribute favourably to IR signature control. The activation of IRCM will further reduce the IR susceptibility of a warship.
Makula Tutulumu Olmayan Regmatojen Retina Dekolmanlı Hastalarda Silikon Yağı Kullanımının Makula Tabakalarının Kalınlıkları Üzerine Etkisi
Authors: DAĞ Umut , ÇAĞLAYAN Mehtap
Published: August 2021

Amaç: Retina dekolmanı tedavisinde göz içi tamponad olarak kullanılan silikon yağlarının makula tabakalarının kalınlıkları üzerine etkisini araştırmaktır.

Yöntemler: Çalışmaya makula tutulumu olmayan Regmatojen retina dekolmanı nedeniyle opere edilen ve göz içi tamponad olarak silikon yağı kullanılan 42 hastanın 42 gözü dahil edildi. Tüm hastaların cerrahi öncesi ve silikon yağı çıkarıldıktan sonraki en iyi görme keskinliği değerleri (EİGK) ile segment analiz sistemi kullanılarak Optik Koharens Tomografi (OKT) cihazı ile otomatik olarak ölçülen merkezi makula kalınlığı (MMK), retina sinir lifi tabakası (RSLT), gangliyon hücre tabakası (GHT), iç pleksiform tabaka (İPT), iç nükleer tabaka (İNT), dış pleksiform tabaka (DPT), dış nükleer tabaka (DNT), retina pigment epitelyum tabakası (RPET), iç retina tabakası (İRT) ve dış retina tabakası (DRT) kalınlık değerleri karşılaştırıldı. Ayrıca kullanılan silikon yağının viskozitesine göre subgrup analizi yapılarak 1000 ve 5000 centistokes (cst)silikon yağı kullanılan olgulara ait veriler ayrı ayrı karşılaştırıldı.

Bulgular:Silikonize gözlerde MMK, RSLT, GHT, İPT, İNT, DPT, DNT ve İRT kalınlık değerlerinde cerrahi öncesine göre anlamlı bir incelme mevcuttu (tüm değerler için p>0,05). 1000 cst grubunda İPT, İNT, DPT, DNT ve İRT kalınlık değerleri cerrahi öncesi değerlere göre anlamlı düşükken (sırasıyla; p: 0,013, p: 0,049, p: 0,023, p: 0,008 ve p
Kistik fibrozis tanılı çocuk hastaların kardiyak değerlendirilmesi
Authors: TÜRE Mehmet , ŞEN Velat
Published: August 2021

Amaç: Kistik fibrozis: kalbi de etkileyen ilerleyici organ disfonksiyonu ile karakterize, kompleks, multisistemik kronik bir hastalıktır. Kistik fibrozis hastalarında gelişen kronik hipoksi, hiperkapni, sağ kalp boşluklarının dilatasyonu ve kullanılan sempatomimetik ilaçlar aritmiye neden olabilir. Çalışmamızın amacı kistik fibrozis tanılı çocuk hastaların elektrokardiyografi ve ekokardiyografi verilerini sağlıklı kontrol grubu ile karşılaştırarak ani ölüm açısından öngörüde bulunmak ve hastaların takiplerinde buna dikkat çekmektir.

Yöntemler: Elli bir kistik fibrozis tanılı çocuk hasta ile yaş ve cinsiyeti hasta grubu ile uyumlu olan 53 sağlıklı çocuk elektrokardiyografi verileri, sağ ventrikül sistolik basıncı ve sağ ventrikül sistolik fonksiyonlarını gösteren triküspit anüler düzlem sistolik hareketi açısından karşılaştırıldı.

Bulgular: Kistik fibrozis tanılı hastalarımızın 22’si (%43,1) kız iken, yaş ortalaması 107,9±59,7 ay idi. Kotrol grubunun ise 25’i kız (%47,1) iken, yaş ortalaması 108,1±59,7 ay idi. Kontrol grubu ile karşılaştırıldığında, hasta grubunda kalp hızı (p=0.03), QT dispersiyonu (p=0.002), QTc maksimum (p=0.01), QTc dispersiyonu (p=0.002) anlamlı olarak daha yüksekti. Triküspit anüler düzlem sistolik hareketi hasta grubunda kontrol grubuna göre (p
Acil Servise Başvuran İnme Olgularında Laktat ve Laktat Klirensinin Mortalite Üzerine Etkileri
Authors: ORAK Murat , İPEK Mustafa , ÜSTÜNDAĞ Mehmet , YAMAN Mahmut , ALUÇLU Mehmet Ufuk , GÜLOĞLU Cahfer
Published: August 2021

Amaç: İskemik ve hemorajik serebrovasküler hastalıklar, önemli bir morbidite ve mortalite nedenidir. Laktat klirensinin kritik hasta grubunda tüm mortaliteler ile ilişkili olduğu gösterilmiş. Biz bu çalışmada kritik hasta grubu içinde olabilecek inme ön tanılı hastalarda laktat ve laktat klirensinin prognozu tayin etmede yerini araştırmayı amaçladık.

Yöntemler: 01.01.2018-31.12.2018 tarihleri arasında Dicle Üniversitesi acil servisine inme ön tanısıyla başvuran yaklaşık 300 hasta retrospektif olarak incelendi. Çalışma kriterlerine uyan 50 hastanın geliş anı laktat değeri, 24. saat laktat değeri ve 24. saat laktat klirensi değerlerine bakıldı. Çıkan sonuçların mortalite üzerine etkileri incelendi.

Bulgular: Çalışmaya 50 hasta dahil edildi. Bu hastaların 23’ü erkek, 27’si kadındı. Hastaların yaş ortalaması 64,18±17.80 yıl olarak hesaplandı. Ölen hastaların 6’sı erkek, 13’ü kadın olup yaş ortalaması 66.11±19.95 yıl idi. Sağ kalan ve ölen hastalarımızın laktat düzeyleri ve laktat klirenslerine göre değerlendirildiğinde ölen hastalarımızda 24’üncü saatteki laktat düzeyi anlamlı derecede yüksektir

Sonuç: İnme ön tanısıyla acile başvuran hastalarda laktat klirensinin prognoz tayini açısından iyi bir marker olamayacağı, 24. Saat laktat değerinin daha anlamlı olduğu ortaya çıktı.
Türkiye’de İnsanların COVID-19 Aşısına Bakışı
Authors: YILMAZ Hatice İlke , TURĞUT Başak , ÇITLAK Göksu , MERT Oğulcan , PARALI Bilge , ENGİN Muhammed , AKTAŞ Aylin , ALİMOĞLU Orhan
Published: August 2021

Amaç: COVID-19’a karşı aşı konusunda büyük ilerlemeler olmasına karşın aşının halk tarafından kabulü konusundaki belirsizlik aşılamanın önünde engel oluşturabilecek bir husustur. Bu çalışmada, Türkiye'de COVID-19’a karşı etkili bir aşının kullanıma sunulması durumunda halkın aşıya bakış açısı ve bu durumu etkileyen faktörlerin araştırılması amaçlandı.

Yöntemler: Çalışma için İstanbul Medeniyet Üniversitesi Göztepe Eğitim ve Araştırma Hastanesi Etik Kurulundan izin alınarak Aralık 2020’de anket hazırlandı. Çevrimiçi olarak Türkiye'de yaşayan insanlara uygulandı. Veriler, IBM SPSS İstatistik programında ki-kare testi kullanılarak değerlendirildi.

Bulgular: Anket 1293 katılımcı ile yapıldı. Katılımcıların %41,2’si COVID-19 aşısı olmaya olumlu yaklaşırken %37,9’u ise kararsızdı. Aşı yaptırmayı düşünmeyen veya kararsız olan bireylere sebebi sorulduğunda %75,9’u yeni bir aşı olduğu için yan etkilerinden korktuğunu, %34,4’ü aşı üreten firmalara güvenmediğini, %20,9’u aşının COVID-19’a karşı koruyamayacağını düşündüğünü bildirdi. %47,7’si (n=617) COVID-19’un laboratuvar ortamında yapay olarak üretildiğini, %45,9’u COVID-19’un biyolojik bir silah olduğunu düşünüyordu (n=594). %64,3’ü yerli aşıyı tercih edeceğini belirtti.

Sonuç: Türkiye’de COVID-19 aşısına karşı bir tereddüt vardır. Bunun yanında olası bir aşı tercihi durumunda yerli aşıya olan güven ithal aşıya kıyasla daha fazladır.
Arı Sütünün Amiloid Beta ile Deneysel Alzheimer Modeli Oluşturulmuş Sıçanlarda Etkileri
Authors: BENZİGÜL Songül , ÇAM Saliha Ayşenur , UYSAL Fatma , ARSLAN Seyfullah Oktay , TATLI DOĞAN Hayriye
Published: August 2021

Giriş: Arı sütünün amiloid beta1-42 enjekte edilerek Alzheimer modeli oluşturulan sıçanlarda, bilişsel işlevin azalmasına ve sinir hücresi inflamasyonuna karşı doza bağlı etkisini araştırmayı amaçladık.

Yöntemler: Çalışmada, 35 adet 4 aylık 280-310 g ağırlığında Wistar-Albino erkek sıçan kullanıldı. Her grupta 7 sıçan olacak şekilde 5 grup oluşturuldu. Aβ1-42, hamilton mikroenjektörü ile hipokampüse çift taraflı 4µg/taraf enjekte edildi. Kontrol grubuna Aβ1-42 yerine, aynı miktarda serum fizyolojik enjekte edildi. Hipokampüs içine Aβ1-42 uygulamasından önceki 7 gün ve sonraki 10 günden sonra, arı sütü sıçan gruplarına sırasıyla 30 mg/kg, 100 mg/kg, 300 mg/kg mide sondası ile uygulandı. Bu uygulamalar bittikten sonra iki gün sürecek olan Pasif Sakınma testi, sonra beş gün sürecek olan Morris Su Tankı deneyleri uygulandı. Hipokampüs dokularında TNF-α ve IL-1β düzeyleri ölçüldü. İmmünohistokimyasal incelemelerde GFAP ve Iba1 boyanma şiddeti ve yaygınlığı, ayrıca astroglia ve mikroglia hücrelerinin aktive olmuş morfolojiye sahip olup olmamaları esas alındı.

Bulgular: Gruplar karşılaştırıldığında, pasif sakınma testi ve morris su tankı testleri uygulanan sıçanlarda Aβ1-42 uygulamasıyla öğrenme ve hafızada gerileme oluştu. Arı sütü 30 mg/kg, 100 mg/kg ve 300 mg/kg uygulamasında öğrenme ve hafızada oluşan gerilemenin geri dönüşünde istatistiksel anlamlılık elde edilemedi. Alzheimer hastalığı grubunda gözlenen astrosit ve mikroglia aktivite artışının, 30 mg/kg grubu hariç diğer tedavi gruplarında baskılandığı görüldü. Hipokampüste TNF-α ve IL-1β düzeylerinin, Aβ1-42 uygulaması ile arttığı görüldü ve tedavi gruplarında arı sütü 30 mg/kg grubu hariç diğer iki grupta (100 ve 300 mg/kg) bu artışın baskılandığını tespit edildi.

Sonuç: Alzheimer modellememizdeki bulgularımıza göre arı sütü uygulaması sonucu, oluşan astoglial ve mikroglial aktivite ve inflamasyon yapıcı sitokin artışının baskılandığı görülmüştür.
Otonom Disfonksiyon Parameterleri ile Efor Testi Sırasında İzlenen Ventriküler Erken Vuru Sıklığı ve İskemik ST-segment Değişikliği Varlığı Arasındaki İlişki
Authors: SARI Münevver , KARAKURT Özlem
Published: August 2021

Giriş-amaç: Vagal reaktivasyon normal olarak egzersiz sonrası toparlanmanın erken döneminde meydana gelir. Normal vagal reaktivasyonun yokluğunda, kalp hızı toparlanması (HRR) zayıflar. Kalp hızı türbülansı (HRT), ventriküler ektopiden sonra arteriyel kan basıncındaki bozulmalara verilen otonomik yanıtın bir göstergesidir. HRR ve HRT'nin (türbülans başlangıcı (TO) ve türbülans eğimi (TS)) prognostik rolü iyi bilinmektedir. Bu çalışmada, egzersiz testi sırasında ventriküler ektopi sıklığı ve iskemik ST-segment değişikliği varlığı ile bu parametreler arasında bir ilişki olup olmadığını araştırmayı amaçladık.
Yöntemler: Koroner arter hastalığı ya da kalp yetmezliği olmayan 1550 hastadan 100'ünde (%6,4) ezgersiz sonrası toparlanma sırasında ventriküler ektopi vardı. Bu hastalarda ventriküler ektopi sıklığı, egzersiz sonrası 1. dakikadaki HRR indeksi, TO ve TS değerlerini ölçtük.
Bulgular: Hastaların %35'inde TO, %17'sinde TS ve %10'unda HRR anormaldi ve TO daha önce bozulmuştu. Hastalar iskemik ST-segment değişikliklerine göre (negatif ve pozitif) gruplandırıldığında; yaş, maksimum METs, egzersiz süresi, TO, TS, TS normal/anormal, HRR, HRR normal/anormal, egzersiz veya toparlanma sırasında ventriküler ektopi sayısı, maksimum kalp hızı ve bazal kalp hızı gruplar arasında benzerdi. Egzersiz testi pozitif olanlarda TO anormal olma eğilimindeydi (p=0.07). HRR ile TS arasında hafif derecede anlamlı bir korelasyon gözlendi (r=0.21, p=0.036). Toparlanma sürecindeki ventriküler ektopi sayısı, egzersiz sırasındaki ventriküler ektopi sayısı ile korele idi. Ayrıca TS, kalp hızı TO ve HRR ile koreleydi.
Sonuç: Düşük-orta riskli bireylerde, toparlanmanın 1. dakikasındaki HRR ve HRT’nin, otonomik fonksiyonun farklı yönlerini yansıtıyor olabilirler ve bunlar, egzersiz testi sırasındaki iskemik ST-segment değişikliği varlığı ve ventriküler ektopi sıklığı ile ilişkili değildi.
Nuts and Bolts of Peripheral Nerve Blocks for Pain After Hip Fracture for Everyday Anesthetist
Authors: Maniar Amjad , Macachor Joselo , Chiew Wan-Ling Alyssa , Kumar Chandra M. , Imani Farnad , Rokhtabnak Faranak
Published: August 2021

: A range of peripheral nerve blocks is available to treat hip fracture pain, leaving clinicians confused on choice. No single block appears to be outstanding. The article described the relevant anatomy, technical approach, risk associated, and practicability to facilitate a better understanding of the various approaches available. The clinician should be able to make an informed decision based on local requirements and logistics.
Massive Pulmonary Emboli in Klinefelter Syndrome: A Rare Case Report
Authors: Javaherforooshzadeh Fatemeh , Torfi Yusef
Published: August 2021

Introduction: Klinefelter syndrome (KS) is a genetic disorder that affects men. An augmented incidence of the thromboembolic event described in patients with KS. Case Presentation: A 34-year-old male identified with a definitive diagnosis of KS was hospitalized to our cardiac surgery center through the emergency with chief complaints of acute chest pain and dyspnea. Saddle pulmonary thromboembolism was established from chest Computed Tomography Angiography (CTA). The patient's symptoms resolved after embolectomy via surgery. Conclusions: There is a tendency for hypercoagulability in KS. This tendency is because of hormonal discrepancy and hereditary thrombophilic factors. So, patients with KS and past medical history of venous thromboembolism necessitate constant oral anticoagulation therapy.