bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Faktor-faktor Tekanan Kerja dalam kalangan Guru di Sekolah Menengah: Satu Analisis Persamaan Struktur (SEM-PLS)
Authors: Kamarudin Suhaimi Bin , Taat Muhamad Suhaimi
Published: November 2020

Kajian yang dijalankan adalah bertujuan untuk menganalisis data beberapa pemboleh ubah eksogen yang diramalkan mempunyai pengaruh terhadap pemboleh ubah endogen (tekanan kerja) dalam kalangan guru. Kaedah penyelidikan kuantitatif melalui analisis Permodelan Persamaan Struktur-Kuasa Dua Terkecil Separa (SEM PLS) digunakan untuk menilai model hipotesis yang menghubungkan kesemua konstruk dengan menggunakan aplikasi Smart PLS versi 3.0. Analisis dalam bentuk model mendapati bahawa kesemua pemboleh ubah eksogen iaitu faktor Tingkah Laku Pelajar, Kekangan Masa dan Beban Tugas mempunyai pengaruh yang signifikan terhadap tekanan kerja. Data utama kajian diperoleh melalui pentadbiran soal selidik kepada 350 orang guru sekolah menengah yang mengajar di Sabah. Permodelan Persamaan Struktur (SEM-PLS) digunakan secara statistik bagi tujuan mengesahkan hipotesis model terakhir Tekanan Kerja. Penyelidikan ini diharapkan dapat mengisi jurang korpus ilmu dan pengetahuan dengan memberi tumpuan kepada sumbangan kuantitatif yang signifikan berkaitan penerokaan faktor-faktor paling dominan terhadap masalah tekanan kerja khususnya dalam kalangan guru. Penemuan kajian ini turut mendedahkan faktor paling berpengaruh terhadap tekanan kerja ialah faktor kekangan masa dengan nilai varians sebanyak 43%. Selain itu, kajian turut mendapati peranan faktor beban tugas sebagai pemboleh ubah perantara separa antara pemboleh ubah tingkah laku pelajar, dan kekangan masa terhadap tekanan kerja. Implikasi kajian memberi petunjuk bahawa amalan pengurusan masa yang tidak cekap dalam mengurus dan melaksana pelbagai tugas di sekolah jelas memberi kesan negatif terhadap keberkesanan profesionalisme sehingga membawa kepada masalah tekanan kerja. Oleh itu, pengurusan masa secara efektif sewajarnya dapat diamalkan agar segala tanggungjawab yang diberi dapat dilaksanakan dengan sebaik mungkin.
Sokongan Sosial, Penghargaan Kendiri dan Kemurungan dalam kalangan Mahasiswa di Universiti
Authors: Mohd Khir Azlina , Rodzuwan Nor Aina Syafira , Md. Noor Amna , Wan Jaafar Wan Munira , Hassan Mohammad Mujaheed
Published: November 2020

Kajian ini bertujuan untuk menentukan hubungan antara sokongan sosial, penghargaan kendiri dan kemurungan dalam kalangan mahasiswa di Universiti Putra Malaysia. Seramai 234 responden (37.2 % lelaki dan 62.8 % perempuan; 50% pelajar sains dan 50% pelajar sains sosial) terlibat dalam kajian ini. Responden dipilih melalui kaedah persampelan pelbagai peringkat. Satu set borang soal selidik yang diedar kepada responden mengandungi tiga komponen iaitu Multidimensional Scale of Perceived Social Support (MSPSS), Rosernberg Self Esteem Scale (RSES) dan Beck Depression Inventory II (BDI II). Analisis statistik yang digunakan adalah ujian-t, korelasi Peason, dan regresi. Hasil kajian menunjukkan bahawa tahap sokongan sosial dan penghargaan kendiri responden berada pada tahap yang sederhana, manakala tahap kemurungan menunjukkan majoriti responden berada pada tahap yang normal. Keputusan analisis ujian-t menunjukkan tidak terdapat perbezaan yang signifikan tahap kemurungan berdasarkan jantina dan program pengajian. Manakala keputusan analisis korelasi Pearson menunjukkan terdapat hubungan negatif secara signifikan antara kesemua dimensi sokongan sosial dan penghargaan kendiri dengan kemurungan (r = -0.391 hingga -0.510; p<0.01). Dapatan kajian bagi analisis regresi menunjukkan pengaruh yang signifikan antara pemboleh ubah peramal iaitu sokongan sosial (keluarga dan rakan-rakan) dan penghargaan kendiri terhadap kemurungan (β = -0.177 hingga -0.301). Kesimpulannya, sokongan sosial dan penghargaan kendiri merupakan peramal kepada kemurungan dalam kalangan mahasiswa UPM yang dikaji. Justeru, untuk mengurangkan tahap kemurungan, faktor sokongan sosial dan penghargaan kendiri memainkan peranan yang penting.
Analisis Domain Kognitif bagi Latihan dalam Buku Teks Matematik Tahun 6
Authors: Cheng Jia Wei , Rosli Roslinda Binti
Published: November 2020

Buku teks merupakan salah satu alat bantu mengajar yang penting dalam pendidikan matematik. Justeru, kajian ini bertujuan untuk meninjau dan meneroka domain kognitif bagi latihan-latihan dalam buku teks matematik tahun 6 Sekolah Kebangsaan (SK) dan Sekolah Jenis Kebangsaan Cina (SJKC). Kajian ini menggunakan analisis kandungan di mana latihan dalam buku teks matematik dikelaskan dari segi jenis latihan dan domain kognitif. Hasil kajian menunjukkan bahawa sebahagian besar latihan matematik dalam kedua-dua buku teks matematik berada dalam domain mengetahui. Peratusan latihan matematik berdasarkan jenis latihan, domain kognitif dan tajuk telah menunjukkan tidak terdapat perbezaan yang ketara dalam kedua-dua buku teks matematik SK dan SJKC. Walaupun menggunakan kurikulum matematik yang sama dalam semua sekolah rendah, usaha penambahbaikan buku teks harus diteruskan untuk mengurangkan jurang tahap isi kandungan buku teks agar dapat memenuhi keperluan pelajar dan keperluan semasa.
Fundamental Applications of Mathematics in Agriculture and Cultural Heritage in Daily Life of Melanau Tellian, Mukah, Sarawak: An Ethnomathematics Review
Authors: Long Suffina , Chik Yahutazi
Published: November 2020

Mathematics has been measured as a neutral subject and not related to any culture or a society. Learning Mathematics in the modern education system nowadays is an adoption from many parts of the world. This ethnomathematics review is to discover culture and mathematics related to the daily life people of Melanau Tellian in Mukah Sarawak. This study uses a qualitative approach, ethnographic methods and principal such as observation, interview, collecting data and documentation from the fieldwork. The findings showed that the foundation of the Melanau people in Tellian Mukah is essentially based on numbers or Mathematics. It shows in the Melanau’s belief system, social system, traditional games, architecture and in daily practice and tradition. There is a line of relationship between mathematics and culture in this study which can be an initial point for further preservation of Melanau Tellian cultural heritage.
Menyingkap Polemik Peralihan Kuasa Secara Luar Biasa Mengikut Perspektif Demokrasi Berparlimen
Authors: Ationg Romzi Ationg , Esa Mohd Sohaimi , Ibrahim Mohd Azri , Abdul muiz Abang Mohd Razif Bin
Published: November 2020

Polemik peralihan kuasa merupakan salah satu dinamika dalam perdebatan politik. Ini termasuklah polemik peralihan kuasa luar biasa yang berlaku di beberapa buah negara di Asia Tenggara seperti Indonesia, Filipina dan Thailand. Namun, di Malaysia, hal ini tidak pernah berlaku bila mana demokrasi berperlembagaan yang diamalkan sejak merdeka menjadi teras kepada pemerintahan dan pentadbirannya. Pasca Pilihan raya Umum ke-14 (PRU-14), bagaimanapun, mengubah fakta tersebut apabila isu peralihan kuasa terus mendominasi suasana politik di Malaysia, khususnya peralihan kuasa melibatkan pucuk kepimpinan negara, yakni jawatan Perdana Menteri. Berdasarkan penelitian dokumen sekunder dari pelbagai sumber seperti akhbar dan kenyataan politik di kalangan ahli politik, kertas kerja ini membincangkan tentang sejauh manakah isu peralihan kuasa jawatan Perdana Menteri itu dapat dianggap luar biasa dalam sistem demokrasi berparlimen. Artikel ini turut membincangkan tentang penerimaan rakyat Malaysia keseluruhannya idea mengangkat kepimpinan dari tanah Borneo sebagai Perdana Menteri serta kaedah sewajarnya bagi mengatasi kemelut peralihan kuasa. Diharap agar dapatan artikel ini menyumbang kepada pelestarian keharmonian berpolitik di negara Malaysia
Sorotan Literatur Bersistematik: Faktor Stres dalam kalangan Guru Matematik
Authors: Binti Ahmad Fuad Nur Izzati , Maat Siti Mistima
Published: November 2020

Stres dalam kalangan guru merupakan satu isu yang tidak boleh dipandang ringan. Amat penting bagi kita untuk memahami punca stres yang berlaku dalam kalangan guru kerana murid-murid akan menerima kesan secara terus daripada masalah kesihatan mental guru. Justeru kajian ini bertujuan untuk membuat tinjauan literatur bersistematik terhadap faktor-faktor yang mempengaruhi tahap stres guru khususnya guru matematik di sekolah. Dua persoalan kajian yang menjadi fokus utama ialah faktor-faktor stres dalam kalangan guru matematik serta metodologi kajian yang dijalankan dalam kajian-kajian lepas. Kajian ini menggunakan Model Prisma. Dua enjin carian digunakan iaitu Ebscohost dan Science Direct dan selepas proses saringan dilakukan sebanyak 18 buah artikel telah diterima berdasarkan beberapa kriteria yang ditetapkan. Dapatan menunjukkan terdapat 13 faktor yang menyebabkan stres dalam kalangan guru matematik dan kebanyakannya berpunca daripada persekitaran tempat kerja. Dari segi metodologi pula, bilangan kajian kuantitatif yang dijalankan adalah lebih banyak berbanding kajian kualitatif. Kesimpulannya, walaupun banyak faktor yang disenaraikan dalam kajian-kajian yang lepas, namun begitu jumlah kajian yang menekankan tentang kesihatan mental guru khususnya guru matematik masih belum begitu banyak. Justeru diharapkan agar kajian dalam bidang ini boleh diperbanyakkan lagi dalam konteks tempatan pada masa akan datang.
Faktor Penglibatan Pelajar dalam Aktiviti Bukan Akademik anjuran Universiti
Authors: Rasul Nazriah , Mohamed Rafiza , Abd. Wahid Siti Nurhuda , Md. Junus Yusmady , Awang Noh Rosmiza
Published: November 2020

Aktiviti-aktiviti yang dianjurkan di universiti tidak kira akademik atau bukan akademik haruslah boleh membentuk pelajar yang seimbang bukan sahaja dari aspek jasmani dan emosi, malah dari aspek rohani dan intelek juga. Walau bagaimanapun, trend terkini pelajar adalah kurang melibatkan diri dalam aktiviti-aktiviti anjuran universiti Oleh itu kajian ini bertujuan untuk mengenal pasti faktor penglibatan pelajar dalam aktiviti bukan akademik anjuran universiti dan mengenal pasti langkah-langkah yang boleh diambil supaya lebih ramai pelajar melibatkan diri dalam aktiviti bukan akademik anjuran universiti. Ia dijalankan terhadap 888 orang responden daripada 5,534 pelajar diploma di Universiti Teknologi Malaysia Kuala Lumpur (UTMKL). Berdasarkan kepada keputusan analisa menggunakan kaedah Relative Importance Index (RII), faktor pengaruh rakan telah dikenal pasti sebagai faktor yang paling mempengaruhi penglibatan pelajar terhadap aktiviti bukan akademik anjuran universiti iaitu dengan nilai RII sebanyak 0.79. Manakala faktor yang paling kurang mempengaruhi pelajar menyertai aktiviti bukan akademik anjuran universiti ialah faktor personaliti pelajar dengan nilai RII sebanyak 0.59. Maklum balas daripada pelajar berkenaan dengan langkah-langkah yang boleh diambil supaya lebih ramai pelajar melibatkan diri dalam aktiviti bukan akademik anjuran universiti dianalisis menggunakan kaedah Analisa Bertema. Maklum balas pelajar telah dikelaskan kepada 6 tema iaitu penambahan aktiviti yang aktif dan menarik, penambahan infrastruktur oleh universiti, menambah baik saluran komunikasi pelaksanaan aktiviti, merancang pelaksanaan aktiviti, sokongan universiti dalam bentuk kewangan dan memberikan galakan dan motivasi. Hasil daripada kajian ini boleh diguna pakai dalam membuat perancangan aktiviti akademik di universiti bagi menarik lebih ramai pelajar melibatkan diri. Kajian seperti ini harus dijalankan pada masa akan datang. Perincian mengikut jenis aktiviti bukan akademik dan perbandingan mengikut jantina terhadap faktor-faktor yang mempengaruhi penglibatan pelajar terhadap aktiviti bukan akademik dapat membantu dalam menjelaskan dan memperincikan lagi penglibatan para pelajar dengan lebih menyeluruh.
Kepuasan Komunikasi Guru Sekolah Rendah: Satu Kajian Tinjauan di Bahagian Pedalaman Atas Sabah
Authors: Billy Lily James , Taat Muhamad Suhaimi
Published: November 2020

Kepuasan komunikasi merupakan jumlah kepuasan terhadap maklumat umum termasuk perubahan dalam polisi organisasi, prosedur, misi, visi, objektif, pencapaian, rancangan, struktur dan keadaan pekerjaan.  Kajian ini bertujuan mengenal pasti kepuasan komunikasi dalam kalangan guru sekolah rendah di bahagian pedalaman atas negeri Sabah, Malaysia. Kajian berbentuk bukan jenis eksperimental ini menggunakan kaedah tinjauan dan mengabung tiga teknik pensampelan kebarangkalian dalam mendapatkan data. Data dikumpulkan menggunakan satu set soal selidik yang diadaptasi dari Downs dan Hazen (1977) dan ditadbir ke atas 458 orang responden guru. Data dianalisis menggunakan perisian IBM SPSS Statistics 25.0. Berdasarkan analisis deskriptif, variabel kepuasan komunikasi menunjukkan seramai 410 orang responden (89.5%) berada pada tahap tinggi manakala 48 orang responden (10.5%) berada pada tahap sederhana. Dapatan analisis Ujian-t yang diperoleh adalah tidak signifikan (t = 0.663, df = 456, p>0.05), yang menunjukkan tidak terdapat perbezaan kepuasan komunikasi berdasarkan jantina.  Melalui ujian ANOVA sehala, kepuasan komunikasi berdasarkan pengalaman mengajar didapati tidak signifikan, [F(df=2, 455) = 1.685, p>0.05]. Kajian menyimpulkan bahawa tiada perbezaan dalam kepuasan komunikasi berdasarkan pengalaman mengajar guru. Kajian mencadangkan agar kepuasan komunikasi guru berada pada tahap tinggi. Hal ini kerana kepuasan komunikasi guru adalah penting untuk memastikan kelancaran perkongsian kemahiran, ilmu, maklumat dan arahan serta mengelakkan konflik dan merupakan kunci kepada kejayaan serta keberhasilan di sekolah.
Analisis Pengaruh Utang terhadap Perekonomian dan Kemiskinan di Indonesia Periode 1949-2017
Authors: Junaedi Dedi
Published: November 2020

Since independence, Indonesia has experienced seven changes of national leadership. Starting from Soekarno, Soeharto, BJ Habibie, Abdurahman Wahid, Megawati, Susilo Bambang Yudhoyono (SBY), to Joko Widodo. During that time, foreign debt is always present to patch the development budget deficit. Debt is expected to move the wheels of the economy, create growth, create jobs, and alleviate poverty. This study aims to analyze the effect of debt, inflation and government regime differences on economic growth and poverty levels in Indonesia, from the Old Order era, the New Order, to the Reform Order. The study used secondary data obtained from Bank Indonesia, the National Development Planning Agency (Bappenas), the Central Bureau of Statistics (BPS), the World Bank, and other reference sources such as books, journals and scientific papers. The data used are the value of foreign debt, national income (Gross Domestic Product / GDP), population, number and ratio of the poor, inflation rate in the period 1949 - 2017. The results of multiple regression analysis with dummy variable (using Eviews 10 application program) show the following results: Foreign debt has correlation with the national economic condition, in particular the value of Indonesian Gross Domestic Product and the level of poverty. Debt tends to increase the value of GDP and reduce poverty. In terms of debt governance as a driver of the economy and poverty, the Suharto and Habibie Era tend to be different and better than the Sukarno Era. While the debt management of Era Abdurrahman Wahid, Era Megawati, Era SBY and Era Jokowi no different or no better than Era Sukarno. Although nationally can increase GDP and reduce poverty, debt can not improve people's prosperity (read per capita income). Foreign debt even tends to reduce the level of welfare of the people. This applies to all government regimes.
Pengorganisasian Dalam Pandangan Islam
Authors: Rahman Jamaludin
Published: November 2020

The term organization has two general meanings. First, the organization is defined as an institution or functional group, for example: a company, a school, an association, government agencies. Second, referring to the organizing process, namely how work is organized and allocated among members, so that the goals of the organization can be effectively achieved. While the organization itself is defined as a group of people with a system of cooperation to achieve common goals. There are two help words contained in the Qur'an to study this organization. The word is Shaff and the Ummah. The word shaff inspires the concept that organizations must have members, consisting of people, in a place, there is order, purpose, leader, delegation of authority and responsibility, and there is sincere intention and struggle in the way of God. The conclusion that the organizational structure at the time of the Messenger of All āh if reached the khalifah and is now almost the same, only different ideologies. Formerly using the law of Allah SWT, based on the Qur'an and hadith, while at this time we use the Pancasila ideology, using two sources of law: the civil / criminal law of the Dutch heritage and the compilation of Islamic law. At the time of Islam, financial instruments focus on the zakat and tax sectors, while for our government today we use more tax financial instruments. Organizations in the view of Islam are not merely a container, but rather emphasize how a job is done neatly. The organization places more emphasis on regulating work mechanisms. every person who accepts the leadership task that the highest leadership belongs to Allah, for that the leadership given and carried out must always refer to the basic concepts built in Islam. The thing that must be realized that in a good organization must also be accompanied by Islamic values including sincerity, togetherness and sacrifice.
Prinsip-Prinsip Kepemilikan Harta Dalam Islam
Authors: Hamdani Lukman
Published: November 2020

Property is one of the most important instruments in this life, because wealth is as a support for the continuity of human life, in Islam it is always emphasized the importance of independence in owning property through work or business, because Allah really loves his servant who is always giving alms with his own property. Allah Almighty really likes hard workers or people who are persistent in seeking treasure for the sake of the afterlife, even Allah SWT emphasizes in Surah at-taubah father 10. And Say: "Work for you, Then Allah and His Messenger and the believers will see your work, and you will be returned to (Allah) who knows the unseen and the real, then He tells you what you have done.Even the Companions of the Messenger of All āh adalah were rich people who possessed wealth for the progress and development of Islam at the time, a very real example was the Friends of Abu Bakr, Abdurrah bin ʻAuf, Uthman ibn Affan and the Wife of the Messenger of All āh adalah was a great entrepreneur, Siti Khadijah. They are friends looking for wealth and have it as much as possible then after that they distribute their wealth through ZISWAF, it is obligatory and must for Muslims to seek have property for the benefit of the world and the hereafter and the interests of Muslims and provision in the hereafter Can be concluded that ownership of property in Islam it is very important because it is a means of sustaining life and as a place to find savings for ukhrawi life later, because indeed ownership of property in Islam is not only focused on worldly matters, but there are two elements that are always included, namely for worldly and spiritual interests It should be underlined in the ownership of the property that the principle must be instilled that this property has the absolute God Almighty, we are only temporarily entrusted, therefore it is not beautiful to not distribute the assets we have to people in need through ZISWAF instruments.
Pengaruh Pergeraka Tingkat Suku Bunga dan Inflasi terhadap Nilai Aktiva Bersih Reksadana Saham
Authors: Novita Evi
Published: November 2020

This study aims at determining the influence of BI interest rate and inflation toward NAV balance mutual funds. This research was conducted during the period of data since 2008 to 2012. The sample used was the 30 balance mutual funds that are registered and active traded in Bapepam. From the results of the research literature conclude the basic assumptions that variable BI interest rate, and inflation levels affect the NAV of balance mutual funds. Hypothetical tested is that there is a significant influence among independent variables to dependent variables, both partial and simultaneous. Research was conducted with regression analysis using application of Eviews 6.0. The test results shows that thypothetical is supported by data. Variable index BI interest rate can influence a positive significant to NAV balance mutual funds amounted 2,152514; inflastion levels can influence a negative significant to NAV balance mutual funds amounted 0,730341; the independent variables BI rate (X1) and inflastion (X2) both partial and simultaneous can influence to NAV balance mutual funds at trust level 5%
Konsep Produksi Islami
Authors: Norman Efrita
Published: November 2020

This study was to explain about the concept of production in Islamic perspective. This study was also purposed to give explanation about the Islamic concept of production. Production was thought to play important role in economic activities. It was impossible to do other economic activities such as consumption, distribution or trading without the production itself. In conventional term, production was limited as a process to make or create something, such as product, etc. It had placed profit over everything. On the other hand, in Islamic perspective, the production had been placed on the spirit of Islam itself. It contained fairness, benefit for either the producer or consumer. Shortly, it related to the principles of Islam.
HOW DOES THE REDUCTION OF GLANDULAR TISSUE EFFECT THE FORCE AND BREAST THICKNESS IN MAMMOGRAPHY?
Authors: Pišek Manca , Pšenič Pikelj Pia , Mekiš Nejc , Alukić Erna ,   University of Ljubljana, Faculty of Health Sciences, Department of Medical Imaging and Radiotherapy, Zdravstvena pot 5, 1000 Ljubljana, Slovenia
Published: November 2020

Purpose: To determine whether breast thickness decreases with menopause after the reduction of glandular tissue. We also wanted to know how the decrease in breast thickness affects the compression force and the average glandular dose. Methods: In this project, we collected data regarding the compression force, breast thickness and mean glandular dose of 300 patients who had mammographic imaging in two views: CC (craniocaudal) and MLO (mediolateral oblique) view. The data were divided into three age groups: 100 patients aged 50 to 55, 100 patients aged 60 to 65 and 100 patients aged 70 to 75 years. We used basic statistical tests for measurement purposes, while we used the Shapiro–Wilk test to check normality and the Kruskal–Wallis test to compare the differences. Results and discussion: We presented the results and comparisons in the tables and box plot graphs for CC and MLO views of the left and right breast for compression force, breast thickness and MGD. In the CC view of the both breasts, we found that there were statistically signifi cant differences in thickness between groups 1 and 3, and differences in MGD between groups 1 and 2, and 1 and 3. In the MLO view of both breasts we found that compression force does not increase with the age of patients, which can be attributed to the different size and density of breasts, and different compression force. Higher compression force results in lower MGD and breast thickness. Conclusion: In the CC view of left and right breast, there is no statistically signifi cant differences in compression force, but thickness and MGD changed between some groups. In the MLO view, only MGD changed. For further research, we recommend taking measurements on a larger sample, and concurrently considering and examining other factors that may affect breast thickness, compression force and MGD.
TWO CASES OF MRI-INDUCED SKIN BURNS
Authors: Podobnik Gašper ,   Onkološki inštitut Ljubljana, Oddelek za radiologijo, Zaloška cesta 2, 1000 Ljubljana
Published: November 2020

Materials and methods: Both cases were imaged using a GE Optima™ MR450w 1.5T scanner. A combination of anterior and posterior arrays were used. In both cases, patients were placed in the headfi rst prone position. Results and discussion: In the fi rst case, there was a red area on the skin and a white blister appeared after 15 minutes. A closed conducting loop was created in the patient’s body, which caused increased local temperature at the junction of her thighs. We could prevent this by using insulation, such as foam pads, which is one of eight steps for preventing MRI-induced skin burns. In the second case, there were red spots on the skin of the left and right thighs at the contact of the scrotum where a white blister appeared after 15 minutes. This could not have been prevented, even if we considered all the steps for preventing MRI-induced skin burns. Conclusion: I reported a case of burns on a small area of skin at the junction of the patient’s thighs, which we could have prevented by using insulation pads, and a case of burns on the skin at the contact of the scrotum, which we could not have prevented, even if we considered all the steps for preventing MRI-induced skin burns. However, we could have stopped the increase in the degree of the burn by recognising early signs.
IDENTIFICATION OF OCCUPATIONAL STRESSORS AMONGST RADIOGRAPHERS
Authors: Jagodič Mihela , Hlebec Valentina , Starc Tina ,   Institute of Oncology Ljubljana, Slovenian National Breast Cancer Screening program - DORA, Zaloška ulica 2, 1000 Ljubljana,   University of Ljubljana, Faculty of Social Sciences, Department of Social Informatics, Kardeljeva ploš?ad 5, 1000 Ljubljana, Slovenia,   University of Ljubljana, Faculty of Health Sciences, Department of Medical Imaging and Radiotherapy, Zdravstvena pot 5, 1000 Ljubljana, Slovenia
Published: November 2020

Purpose: The aim of this research is to defi ne stress and correlated factors and identify which stressors are present among radiographers in relation to their workplace. Methods: A total of 450 radiographers received a questionnaire that covers a variety of workplace stressors, which conditions aff ect stress, how frequently radiographers notice stress and to what extent they use coping mechanisms. The online survey was available on the website 1ka and the results were analysed using the IBM SPSS program. Results: A total of 236 radiographers completed the survey (52.4% response rate). Interpersonal relations and management staff cause the highest level of stress, while the most important stressor is a conflict with a supervisor (3.38). Radiographers who work in a field of radiotherapy perceive the most stress. There is no difference between a healthcare activity in relation to levels of perceived stress. We could not identify any statistically significant differences in perceived stress in relation to gender or age (p?0.05). Radiographers who asses their relationship with co-workers and supervisors as good perceive lower levels of stress. Additionally, the same results are present with radiographers who are satisfied because they work in a multidisciplinary team (p?0.05). Teaching new staff has a positive correlation with occupational stress development. Unnecessary radiological procedures, along with unclear roles, have no effect on the development of stress behaviour (p>0.05). However, a conflict between roles has a major association (p?0.05) with stress occurrence. The most frequent methods for reducing symptoms of stress are caring for one’s health and physical appearance (3.77). It proved that communication with patients and duty work (p<0.05) represent significant elements of the workload. Most radiographers think that physical conditions in the workplace could be improved. Discussion and conclusion: The results show that radiographers notice a variety of stressors in their workplace. The most important are related to interpersonal relations. Further research should include analysis of stress within particular fields of radiography that would help to explain occupational stress.
IMPACT OF ACQUISITION PARAMETERS ON THE QUANTITATIVE ASSESSMENT OF PET IMAGING – ANALYSIS OF THE NEMA PHANTOM
Authors: Rep Sebastijan ,   University Medical Centre Ljubljana, Clinic of Nuclear medicine, Zaloška 7, 1000 Ljubljana, Slovenia
Published: November 2020

Aim: The aim of the research was to analyse the most common factors that influence SUV values. Material and methods: In the study, I used a NEMA body phantom filled with a mixture of water and 18F-FDG in a ratio 1:4 (background/spheres), and analysed the most common factors that influence SUV values. The most common factors include the impact of the patient's body weight, the impact of time between application and PET/CT imaging, and the impact of differently prepared and administered RP activities. Results: Different values of patient body weight, time between application and PET/CT imaging, and differently prepared and administered RF activities have a statistically significant effect on the quantitative assessment of SUVmax (p < 0.001) and SUVmean (p < 0.001). Conclusion: The results showed that all factors can significantly influence the quantitative assessment of SUVmax and SUVmean.
Morbilidad materna en la unidad de cuidados intensivos en un hospital de Huancavelica, Perú
Authors: Jorge-Chahuayo Maritza , Vilca-Aponte Elizabeth , Jaurapoma-Lizana Enma
Published: November 2020

Objetivo: Determinar las características personales, obstétricas y clínicas de las pacientes que presentaron morbilidad materna extrema. Material y métodos: Estudio descriptivo, retrospectivo de corte transversal, realizado en el Hospital Departamental de Huancavelica (Perú), donde se revisaron 94 historias clínicas de gestantes o puérperas atendidas en Unidad de Cuidados Intensivos (UCI) entre enero 2016 a diciembre 2018. Resultados: Las características personales de las pacientes con morbilidad materna extrema fueron; presentan una edad materna entre 20 a 34 años (53,2%), estado civil soltera (35,1%), grado de instrucción secundario (45,7%) y procedencia rural (63,8%). Respecto de las características obstétricas, presentaron una paridad de nulíparas y multíparas (26,6%), ≥ 6 controles prenatales (59,6%) y un periodo intergenésico adecuado (67,0%). Finalmente, las características clínicas más resaltantes de esta población fueron presentar preeclampsia severa (48,9%), shock hipovolémico (13.8%), síndrome de Hellp (12.8%), eclampsia (11.7%), aborto (5.3%), hemorragia posparto (3.2%) y shock séptico (3.2%). Conclusión: En mujeres con morbilidad materna extrema, más de la mitad tienen edades entre 20 a 34 años, la mayoría solteras; nivel secundario y proceden del área rural, nulíparas y multigestas, con más de 6 controles prenatales y tienen periodo intergenésico adecuado, finalmente la preeclampsia severa fue más frecuente.
Manifestaciones clínicas y resultados materno-perinatales del COVID-19 asociado al embarazo: Una revisión sistemática
Authors: Chilipio-Chiclla Marco , Campos-Correa Karen
Published: November 2020

Objetivo: Evaluar las manifestaciones clínicas y resultados materno-perinatales de la infección por COVID-19 asociada al embarazo. Material y métodos: Se revisaron ocho bases de datos electrónicas (Science Direct, Pubmed, Lilacs, Scielo, Redalyc, LitCovid, EBSCO y Scopus). Se consideraron estudios primarios a texto completo en idioma español e inglés; publicados entre el 01 de enero y 15 de mayo de 2020; y realizados en gestantes con diagnóstico confirmado de COVID-19 (reacción en cadena polimerasa con transcripción inversa [RT-PCR]. Resultados: Se incluyeron 15 estudios que informaron 224 casos de infección por COVID-19 asociada al embarazo, principalmente en gestantes del tercer trimestre (13/15). La tos y fiebre fueron las principales manifestaciones clínicas reportadas en todas las investigaciones. Menos de la tercera parte de estudios muestran al dolor abdominal como manifestación obstétrica que motiva la búsqueda de atención. El antecedente epidemiológico de exposición y las alteraciones en exámenes auxiliares de laboratorio (linfopenia y PCR elevado, principalmente) son reportadas con regular frecuencia. La enfermedad por COVID-19 asociado al embarazo se presenta principalmente de forma leve; asimismo, la mortalidad e ingreso a UCI son resultados maternos exclusivamente asociados a las pocas presentaciones severas. La cesárea es la vía de culminación mayormente empleada, siendo en pocos casos la neumonía por COVID-19 la indicación citada. El bajo peso al nacer y el ingreso a UCIN son resultados perinatales descritos en 9 de 15 estudios, existiendo poca mortalidad perinatal. Solo en tres estudios se reporta que existe transmisión vertical. Conclusión: La enfermedad por COVID-19 asociado al embarazo se reporta principalmente en gestantes de tercer trimestre, con fiebre y tos presentes a la admisión, siendo mayormente casos leves. Asimismo, genera pocas complicaciones materno-perinatales; sin embargo, en casos severos la morbimortalidad es más frecuente.
DETECTION OF MICROBIAL CONTAMINATION IN COLLECTED RAINWATER IN GROUND RESERVOIRS BESIDE MAIN ROADS (ASBAYYA- GHARIAN- MAZDAH)
Authors: Saeeda Adel , Futuristic Ismail
Published: November 2020

This study is conducted to investigate the extent to which water was contaminated with colon bacteria in ground tanks that extend along the Asbayya-Gharian and Gharyan- Mazdah roads. 20 samples were collected from the collected water pools in the ground reservoirs along the road and also 20 samples of water collected in ground reservoirs along the (Greian-Mazdah) between March and August. The samples were taken by sterilized glass bottles. The sterilized bottle was sealed in water, then, opened inside the tank to enter the water directly and prevent the possibility of external contamination. The samples were placed in the refrigerated case to prevent undergoing bacterial growth. The samples were taken to the laboratory for further investigation and defined for positive/negative samples containing colon bacteria. Statistical analysis of the study found that 20% of the water samples taken from the tanks along the Asbayya- Gharian road were not suitable for drinking, and 37% of the water samples from the Western Mountain Road area were not suitable for drinking. Because it contains a high percentage of colon bacteria.
INVESTIGATION ON OXYGEN PERMEABILITY AND SURFACE PROPERTIES OF AGAR FILMS
Authors: Elhefian Esam Abdulkader , Saalah Sariah , Yahaya Abdul Hamid
Published: November 2020

In this work, agar (AG) films have been prepared using the cast method technique. Surface properties such as contact angle (CA) and morphology of the films were carried out. The water contact angle on the surface of agar film was recorded to be 74.91 ±0.35 indicating good hydrophilicity of the surface, which was confirmed by the scanning electron microscope (SEM) image of the AG film. The contact angle was also studied with the variation of time. After making the initial contact on the substrate, the water contact angle on the AG film was found to decrease gradually with time. Studying the oxygen permeability of the agar film showed that the film had an oxygen permeability of about 187 barer.
A PRACTICAL ATTEMPT FOR INTERPRETATION OF SYSMEX KX-21 BLOOD ANALYZER HISTOGRAMS AND FLAGS RESOLVING
Authors: M Jbireal J
Published: November 2020

The main principle of the automated blood analyzers is to get the quantity (count) of different blood components (parameters) in the peripheral blood samples. Additionally, in case of Sysmex KX-21 blood analyzer, the work performance includes also 3-part differential white blood cells (WBC) count represents eight parameters of the complete blood count (CBC). Extremely important to mention here that many of the analyzed information about the main blood corpuscular are provided  in graphical forms called histograms. Remarkably, any abnormal results in the investigated blood parameters due to multi different factors such as red blood cell  fragments, platelets clumps, cold agglutinins, giant platelets and many other factors will appear in an abnormal histograms and flags. These abnormalities in values and histograms or flags appeared are due to be interpreted and adjusted depending on  extensive knowledge of the analytic performance of the analyser and the clinical significance of the results they provide.As the KX-21 is a fully automated haematology analyser, easily fitting into a lot of medical laboratories in our country and ideal as a backup analyser to the Sysmex full differential analyser system, we tried to create a scientific method (it can be in a hard or soft copy) to avoid automating bad work processes. This is carried out in order to get accurate results, to interpret different histograms in a good way and to discover the reasons lead to appearance of the flags during analysing.
مقارنة بين خزانات التموج المستخدمة في الحماية من مشكلة مطرقة الماء في المحطات الكهرومائية
Authors: رمضان عبد الغني محمد , القراد خيري مفتاح , ساسي جمعة عبد السلام
Published: November 2020

تم في هذا البحث إجراء مقارنة بين نوعين من خزانات التموج المستخدمة في الحماية من مشكلة مطرقة الماء في المحطات الكهرومائية وهما الخزان البسيط ، و الخزان ذو الفتحة. وقد استخدم لهذا الغرض نموذج رياضي يعتمد في الأساس على اشتقاق المعادلات التفاضلية الحاكمة وفق المبادئ الأساسية لميكانيكا الموائع بتطبيق معادلة الاستمرارية ومعادلة كمية الحركة (الزخم) على الخزانين، وحله باستخدام الطرق العددية وبالاستعانة ببرامج الحاسب الآلي تحت الشروط الابتدائية والبيانات التشغيلية، حيث أظهرت النتائج أنه بزيادة مساحة مقطع الخزان ومعامل الاحتكاك بالأنبوب الرئيس انخفض مستوى الاندفاع المفاجئ الأول في الخزان ، وكذلك معدلات التصريف سواء في الخزان البسيط أو في الخزان ذي الفتحة. معامل الاحتكاك للفتحة في الخزان ذي الفتحة أعطاه ميزة إضافية على الخزان البسيط، فمن خلال المقارنة بين النتائج للخزانين اتضح أن الخزان ذا الفتحة هو أفضل استخداما من الخزان البسيط في المحطات الكهرومائية، وذلك ناتج عن التأثير الإيجابي للفتحة في إخماد مستوى الاندفاعات المفاجئة والتقليل من التذبذبات والتقلبات و تقليل زمن التخميد ومعدلات التصريف.
دراسة أنواع الطفيليات التي تنقلها الصراصير الألمانية آليا على أسطح أجسامها الخارجية وداخل أمعائها
Authors: أبوزيـد سكينــة أبوزيـد سعيـد
Published: November 2020

أجريت هذه الدراسة لمعرفة أنواع الطفيليات التي تنقلها الصراصير الألمانية آليا على أسطح أجسامها الخارجية وداخل أمعائها للإنسان بمدينة الزاوية التي تبعد عن العاصمة طرابلس حوالي 45كم غربـا, في الفترة من (13-2-2008 م) إلى (22-7-2009م) ، حيث تم تجميع (145) صرصور من النوع الألماني (Blattella germanica) وكان عدد الذكور 61 منهم (47 بالغ و14 غير بالغ) وعدد الإناث 84 أنثى منها (67 بالغات و17غير بالغات), جُمعت من غرف المنازل والحمامات وحجرات تفتيش المجاري, و كان معظمها يحمل الطُفيليات إما على أسطح أجسامها الخارجية أو داخل أمعائها بنسبة87.5% ،  وتم عزل هذه الطُفيليات والتعرف على أنواعها, وهى سبع أنواع من الكائنات الأولية الطفيلية المعوية ، كما  لوحظ  من خلال نتائج هذه الدراسة أن مقدار ما تحمله الصراصير الألمانية من طُفيليات  داخل أجسامها  يفوق ما تحمله على أسطح أجسامها الخارجية ، وأن الصراصير التي تم تجميعها من داخل الحمامات كانت تحمل طفيليات بنسب أعلى من تلك التي تم تجميعها من داخل الغرف.
EFFECTS OF PARSLEY SEEDS AT DIFFERENT LEVELS AS NATURAL ADDITIVES ON SEMEN QUALITY IN RABBIT MALES
Authors: Embark Jamal A.
Published: November 2020

This study is designed to evaluate the effect of using parsley seeds (PAS) at different levels as a natural on semen quality and reduce the effect of lipidperoxidation of bucks. Forty New Zealand rabbit bucks 8 month old were divided into four groups (each 10 rabbit bucks). The groups were divided as follows: Control diet (free from PAS), T1: Control diet + 5g/kg PAS, T2: Control diet + 10g/kg PAS; T3: Control diet + 15g/kg PAS. Semen sample were collected twice a week; from each rabbit buck by artificial vagina. The first semen collection was used to evaluate semen quality parameters. However, the second semen collection was used for analysis semen plasma. Results revealed that feeding diets containing different levels of PAS significantly (P<0.05) increased semen volume, mass activity, individual motility, PSV, sperm concentration, total sperm and seminal plasma activity of ALP enzyme and significant (P<0.05) decrease in dead sperm and seminal plasma concentrations of total lipids, triglycerides, cholesterol and MDA and seminal plasma activities of AST and ALT enzymes and TAC as compared with the control group. In conclusion, dietary supplementation with different levels of PAS, especially at the level of 15 g/kg (T3) resulted in significant improvement in semen quality, antioxidant status and reproductive traits of rabbit bucks.
IMPROVEMENT OF SHARARA CRUDE OIL FLOW USING POLYSTYRENE AND POLYDIMETHYLSILOXANE AS DRAG REDUCING AGENTS
Authors: Sultan Rabeeah H. , Abduallah Abduelmaged B. , Sultan Omar M. Sultan M.
Published: November 2020

In this study the applicability of the Libyan crude oil flow induced by improved lab pumping system was examined in order to evaluate the effect of adding polymeric materials of Polystyrene and Polydimethylsiloxane as drag reducing agents (DRA) on the flow of Sharara crude oil in the pipeline. The polymers are injected through a pumping system at different concentrations rounded between (10-100) ppm. Several experiments were carried out to determine the best concentration of polymer, which satisfied lowest drag force on of crude oil flow rate. Furthermore, the effect of additive concentration on the Viscosity(μ), friction factor (ƒ), percentage drag reduction (%DR) and the amount of flow increases (%FI) were determined. The results show that the activities of Polydimethylsiloxane for Drag reduction is higher than drag reduction for Polystyrene. However, the %DR is generally increased with increasing of polymer concentration for all tested additives. It is progressively increased with increasing Reynolds number (Re) at any specific concentration of the polymeric additives. The friction factor is well correlated with Reynolds numbers and polymer concentration according to the relation of the form ƒ= k ReaCb, the results showed good agreement between the observed values and the predicted ones.
DETERMINATION CONVENTIONAL ROCK PROPERTIES FROM LOG DATA & CORE DATA FOR UPPER NUBIAN SANDSTONE FORMATION OF ABU ATTIFEL FIELD
Authors: Alabeed Adel , Ibrahim Zeyad , Alfandi Emhemed
Published: November 2020

A reservoir is a subsurface rock that has effective porosity and permeability which usually contains commercially exploitable quantity of hydrocarbon. Reservoir characterization is undertaken to determine its capability to both store and transmit fluid. Petrophysical well log and core data, in this paper, were integrated in an analysis of the reservoir characteristics by selecting of three productive wells. The selected wells are located at Abu Attifel field in Libya for Upper Nubian Sandstone formation at depth varied form 12921 to14330 ft. The main aim of this study is to compare the laboratory measurement of core data with that obtained from well log data in order to determine reservoir properties such as shale volume, porosity (Φ), permeability (K), fluid saturation, net pay thickness. The plots of porosity logs and core porosity versus depth for the three wells revealed significant similarity in the porosity values. The average volume of shale for the reservoir was determined to be 22.5%, and average permeability values of the three wells are above 150 md, while porosity values ranged from 9 to 11%. Low water saturation 13 to 22% in the three wells indicates the wettability of the reservoir is water-wet.
AN EXPERIMENTAL STUDY OF THE HERSCHEL-QUINCLE (HQ) TUBE NOISE ATTENUATION PERFORMANCE
Authors: El-Majani Abdul-Hafid , Oun Mohamed S. , Farhat Salem A.
Published: November 2020

The work presented in this paper summarize both analytical and experimental investigations of the Herschel-Quincke (HQ) concept for reducing known radiated inlet noise using signal generating system.  The analytical part of this work involves one-dimensional plane wave propagate in a cylindrical duct. In this paper adaptive HQ tube is used to reduce tonal noise propagating as plane waves in closed end duct. The effect of HQ tube length on the noise reduction, induced by a loudspeaker at various frequencies, is investigated experimentally in an acoustically cylindrical duct with and without HQ. Five HQ tubes with different lengths are investigated. The distance between the HQ tube ends is kept constant (l=20 cm), (  = 1.5, 2.5, 3, 3.5, and 4). Two Microphones system was used to measure the net acoustic power transmission in the duct. One microphone is located just before the HQ tube in the duct, and the other is at the closed end of the duct where it is always anti-node pressure. Data acquisition, monitoring and analysis are done using National Instrument DAQ card and LabVIEW software.  A LabVIEW vi code is developed to interface and process the two microphones system signals. Results showed that the length of the HQ tube is very important for a passive control of the noise reduction. While long HQ tube was effective in noise reduction in low frequencies, short HQ tube was more effective for high frequencies.
THE CONCEPT OF SUSTAINABILITY FROM AN ARCHITECTUIRAL VIEW
Authors: Shibub Mariam M
Published: November 2020

Libya is considered a virgin land for sustained development, and with its small population, the country’s productivity and consumption are still insignificant.  Libya’s architectural heritage, which remains untainted by the pollution problems which plague more industrial countries.  The most important problems facing the country are desertification and limited water supply. The failure of the Libyan State to enact laws to address these problems has contributed to their increase.

This article deals with the concept of sustainability and its relation to the architecture science and its intellectual and cultural dimensions. In addition, the local efforts in Libya that aim to set up a local plan for coping with the international efforts and the resulting work rules regarding this concern. The researcher used the literature review as a method to focus on the pervious points. This study arrived at an important recommendation that the Libyan authorities should focus on the importance of developing educational curricula especially in the field of architectural engineering and urban planning so as to cope with the theories and principles of sustainable architecture.
LIGHTER HIGH STRENGTH CONCRETE BEAM
Authors: Elbasha Nuri Mohamed
Published: November 2020

High strength concrete (HSC) has been used extensively in civil construction projects worldwide because it reduces the cross section and the weight of long construction members. In recent years a marked increase in the use of High Strength Concrete (HSC) has been evident in Australian building construction despite the fact that the current Australian design standard provides no design rules for such a material. Very limited information on the properties of HSC and its design and construction processes are available in Australia, although in recent times many studies have been undertaken to produce material and, more importantly, to determine its characteristic. In the last 20 years there has been extensive research to economically utilize new components to improve the quality of HSC. HSC produces smaller but stronger structural elements with large spaces available. It has been studied that the cost of using HSC instead of Normal Strength Concerete (NSC) in different types of constructions. This proved that structures constructed with HSC are lighter and economical compared with those constructed with NSC. In the long term durability significantly affects project costs. In other words after several years a concrete structure needs rehabilitation or in critical cases must be demolished, therefore the price of a project consists of initial costs plus those covering any rehabilitation. A huge amount of money could be saved by utilizing the durability characteristics of high strength concrete. This study presents recent information and the benefits of high strength concrete. Also, provides in brief an experimental proof that installing a helix with a suitable pitch and diameter in the compression zone of beams significantly enhances their strength and ductility. Therefore, designers could confidently use high-strength concrete and helical confinement to design long and light reinforced concrete beams.