Penglibatan mahasiswa secara aktif dalam bidang sukan di peringkat universiti dan kesannya terhadap pencapaian akademik

Penglibatan mahasiswa dalam bidang sukan di universiti sering dikaitkan dengan pencapaian akademik mereka dalam setiap peperiksaan yang dijalankan. Bagi mahasiswa yang aktif bersukan dengan mewakili universiti ke kejohanan sukan seperti Kejohanan Sukan Majlis Sukan Universiti Malaysia (MASUM) dikatakan punca mereka mendapat keputusan yang tidak begitu memberangsangkan. Kajian ini merupakan satu kajian deskriptif yang bertujuan untuk meninjau sejauhmana penglibatan pelajar dalam bidang sukan akan mempengaruhi pencapaian akademik mereka. Objektif utama kajian ini adalah untuk membuat perbandingan pencapaian akademik di kalangan mahasiswa atlit dengan mahasiswa bukan atlit. Objektif kajian ini juga adalah untuk mengenal pasti faktor-faktor yang mempengaruhi prestasi akademik mahasiswa atlit di Universiti Teknologi Malaysia (UTM), Skudai, Johor. Responden seramai 52 orang dipilih dikalangan mahasiswa UTM iaitu 26 orang merupakan atlit dan 26 orang lagi bukan atlit. Data kajian ini diperolehi melalui soalselidik yang diedarkan kepada semua responden. Item-item dalam soalselidik ini diproses menggunakan kaedah peratusan, melainkan item yang berkaitan dengan keputusan peperiksaan Semester I Sesi 1998/1999. Data dianalisis pada aras signifikan p<0.05 dengan menggunakan analisis ujian-t. Keputusan kajian ini menunjukkan tidak terdapat perbezaan yang signifikan dari segi pencapaian akademik di antara mahasiswa atlit dan bukan atlit. Daripada hasil kajian ini, mahasiswa seharusnya digalakkan untuk bergiat aktif dalam aktiviti sukan dan rekreasi semasa di universiti kerana ia akan memberi kebaikan kepada kesihatan dan pada yang sama ia tidak menjejaskan prestasi pelajaran. Kajian ini mendapati faktor bersukan bukanlah penyebab kepada kemerosotan pencapaian akademik tetapi terdapat faktor-faktor lain yang mempengaruhi prestasi akademik seperti tidak dapat mengikuti pelajaran yang berkesan, tiada kumpulan belajar, malu bertanya kepada pensyarah dan kawan dan lain-lain lagi

Human immunodeficiency virus type-1 (HIV-1) continues to evolve in presence of broadly neutralizing antibodies more than ten years after infection.

BACKGROUND: The evolution of HIV-1 and its immune escape to autologous neutralizing antibodies (Nabs) during the acute/early phases of infection have been analyzed in depth in many studies. In contrast, little is known about neither the long-term evolution of the virus in patients who developed broadly Nabs (bNabs) or the mechanism of escape in presence of these bNabs. RESULTS: We have studied the viral population infecting a long term non progressor HIV-1 infected patient who had developed broadly neutralizing antibodies toward all tier 2/3 viruses (6 clades) tested, 9 years after infection, and was then followed up over 7 years. The autologous neutralization titers of the sequential sera toward env variants representative of the viral population significantly increased during the follow-up period. The most resistant pseudotyped virus was identified at the last visit suggesting that it represented a late emerging escape variant. We identified 5 amino acids substitutions that appeared associated with escape to broadly neutralizing antibodies. They were V319I/S, R/K355T, R/W429G, Q460E and G/T463E, in V3, C3 and V5 regions. CONCLUSION: This study showed that HIV-1 may continue to evolve in presence of both broadly neutralizing antibodies and increasing autologous neutralizing activity more than 10 years post-infection

Continuous evolution of HIV-1 more than ten years after infection in an elite neutralizer

International audienc

Origins of Intermediate Velocity Particle Production in Heavy Ion Reactions

Investigation of intermediate-velocity particle production is performed on entrance channel mass asymmetric collisions of 58Ni+C and 58Ni+Au at 34.5 MeV/nucleon. Distinctions between prompt pre-equilibrium ejections, multiple neck ruptures and an alternative phenomenon of delayed aligned asymmetric breakup is achieved using source reconstructed correlation observables and time-based cluster recognition in molecular dynamics simulations.Comment: 5 pages, 4 figure

Monitoring bioinspired fibrillar grippers by contact observation and machine learning

The remarkable properties of bio-inspired microstructures make them extensively accessible for various applications, including industrial, medical, and space applications. However, their implementation especially as grippers for pick-and-place robotics can be compromised by multiple factors. The most common ones are alignment imperfections with the target object, unbalanced stress distribution, contamination, defects, and roughness at the gripping interface. In the present work, three different approaches to assess the contact phenomena between patterned structures and the target object are presented. First, in-situ observation and machine learning are combined to realize accurate real-time predictions of adhesion performance. The trained supervised learning models successfully predict the adhesion performance from the contact signature. Second, two newly developed optical systems are compared to observe the correct grasping of various target objects (rough or transparent) by looking through the microstructures. And last, model experiments are provided for a direct comparison with simulation efforts aiming at a prediction of the contact signature and an analysis of the rate and preload-dependency of the adhesion strength of a soft polymer film in contact with roughness-like surface topography. The results of this thesis open new perspectives for improving the reliability of handling systems using bioinspired microstructures.Durch die besonderen Eigenschaften bioinspirierter Mikrostrukturen können diese für verschiedene Anwendungen genutzt werden, einschließlich industrieller, medizinischer und Weltraumanwendungen. Ihre Implementierung, insbesondere als Greifer für Pick-and-Place-Robotiker, kann jedoch durch mehrere Faktoren beeinträchtigt werden. Am häufigsten sind Ausrichtungsmängel an das Zielobjekt, unausgeglichene Spannungsverteilungen, Defekte und Rauheit an der Greifschnittstelle. Die vorliegende Arbeit zeigt drei verschiedene Ansätze, um den Kontakt zwischen strukturierten Adhäsiven und Zielobjekten zu untersuchen. Zunächst werden in-situ Beobachtungen und maschinelles Lernen kombiniert, um Echtzeitvorhersagen der Adhäsionsleistung zu ermöglichen. Die trainierten Modelle werden verwendet, um die Haftungsleistung anhand der Kontaktsignatur des Pads erfolgreich zu prognostizieren. Anschließend werden zwei neu entwickelte, optische Systeme verglichen, mit denen das korrekte ” Greifen“ von verschiedenen Objekten (mit rauen oder undurchsichtigen Oberflächen) durch die Mikrostrukturen live verfolgt werden kann. Zuletzt werden Modellexperimente durchgeführt, die mit Simulationen der Signatur des Kontakts einer weichen Polymerschicht mit einer idealisierten rauen Gegenfläche direkt verglichen werden können. Die Ergebnisse dieser Arbeit eröffnen neue Perspektiven zur zuverlässigeren Verwendung von Handhabungssystemen mit bioinspirierten Mikrostrukturen.Leibniz Competition Grant MUSIGAND (No. K279/2019) awarded to Eduard Arz

Management of farm chemical in compliance with standard safety policy - a survey at Ladang Zamrud, Johor / Nazren Samri

This study was conducted to determine the factors of management of farm chemical in compliance with standard safety policy. Farm chemical is one of the basis in Department of Occupational Safety And Health Malaysia. It is a principle used in workplace to manage safety and health Farm chemical is a compound word which is made up of any synthetic substances that be used in field that recognizing of things which may cause injury or harm to a person. Farm chemical such as pesticide, herbicide and fungicide is something that we as general worker or individuals using it on a day-to-day basis when applying at field. People are constantly using farm chemical without aware or knowledge on risk bear for the long term effect even the early sign of symptoms was shown. Headache, skin burns, itching and annual week absence responsible chemical worker are all imply after an acceptance farm chemical conducted. The objective of this study is to determine the compliance level of standard safety policy toward management of farm chemical. Which is the most factor influence compliance among knowledge, awareness and practices. This study was carried out at Ladang Zamrud, Kluang,Johor under PIJ Plantation and the respondent is among dependent general worker. The population in this area is 180 persons but only 85 worker focusing in task related farm chemical and the sample number is 70 person based on Krejrie and Morgan scale. The data of this study is gaining from the questionnaire that will distribute to the respondent. The data will be analysed by using reliability test and Statistical package for social science (SPSS). From the analysis, the researcher determine that awareness and practices of the factor have strong and significant relationship and awareness become the most influenced factor (p=0.000, ß=0.691) toward compliance with standard safety policy. Practices is accepted by general workers because this activity is important directly to activity their done daily and felt it. For other factor, lack of knowledge and lack of fund is become the reason why general worker low compliance with safety policy. From this study, the researcher can conclude that awareness and practices of the factor of management of farm chemical in compliance with standard safety policy have strong significant correlation relationship because all of the factor have p<0.05 and have higher Beta value. Lastly as a recommendation of this study is based on the result and also the problem that occurred when carried out this study, there are a many workers especially foreigner worker that do not understand or do not get enough knowledge about the management of farm chemical in compliance with standard safety policy. So they need to be educate with knowledge because foreigner worker major general worker in plantation. Moreover, adding other factor that can impact the result

The relationship between ownership structure and bank performance: A Malaysian case

This study analyzes the relationship between ownership structure and bank performance in Malaysia. The empirical analysis of this study is restricted to Malaysian Commercial Banks during the period of 2001-2011. The main objective of this study is to examine the relationship between ownership structure and performance in commercial bank in Malaysia. The results show that different types of ownership have different impact on bank performance. The result also shows that foreign ownership had largest impact to bank performance compared to other types of ownership structure. Higher shares by institutional tend to induce larger monitoring which leads to better performance of the banks. However, the results indicate that higher insider ownership and family ownership would increase agency problem in the banks. Government ownership is found to have no impact on the banks performanc

KONTRAK SOSIAL: WAKAF, ZAKAT, INFAQ DAN SHADAQAH

Islam is a doctrine concerned with the welfare of his people, other forms of assistance to improve welfare distribution in the compulsory alms in the form of teaching, so that the Muslims who are well off are required to provide in accordance with the family fortune treasure half of ratio / Shariah conditions set for the less able. While the distribution of assets from the original invitation keridhoaan realized with the recommendation to do waqaf, infaq and Sadaqah