Removal of reactive red 120 by using hydrotalcite Zinc-Aluminium-Nitrate (Zn-Al-N03) / Mohd Aizuddin Mohd Anuar

This objectives of the study was to remove the Reactive Red 120 color where can bring harmf to the human body and environment. Color is the most important thing in our daily life. Color also have a lot of use especially in 'batik' and tekstile industry. We may be dont really realize that the colors from industry is been removed easily to the river that will cause negative side effect were diluted. So, this project were looked at the efficiency of the hydrotalcite Zinc-Aluminium-Nitrate (Zn-Al-N03) also called LDHs that can remove the Reactive Red 120 dye which can cause dangerous to health. The preparation of the LDHs was through out the co-precipitation. Then, the LDHs was characterized and determine using X-Ray Diffractometer, Fourier Transform Infrared, and Scanning Electron Microscope. The analysis about the adsorption of the dye were used several parameter such as contact time, different initial concentration, adsorbent dosage, pH, temperature and particle size. As the results, the adsorption efficiency for 150 mg/L of the dye at 25 oC in 4 hours with 0,15g adsorbent is 99.85%. From the experiment also can got the Langmuir and Freundlich isotherm. The maximum adsorption capacity (mg/g) of Reactive Red 120 on Zn-Al-N03-LDHs was 81.9672 mg/g and dimensionless constant separation factor RL was 0.7259. The adsorption experiments proven that Zn-Al-N03- LDHs were effective in removing anionic dye (Reactive Red 120). The percentage of adsorption increased with increasing in contact time, adsorbent dosage, temperature and decreasing the particle size. Zn-Al-N03-LDHs were found capable to adsorb low concentration of anionic dye, resulting on the different charged on dye and the different adsorption mechanism between it

The Relationship Between Principals’ Leaderships Towards TVET Teachers’ Motivation in Implementing ICT

The leadership role in a school organisation is crucial for long-term success, particularly in relation to teachers' motivation, especially in the implementation of ICT. School leaders possess the opportunity to employ diverse leadership styles that can influence teachers' motivation, specifically in integrating ICT into teaching and learning. Technical and vocational education is an area where ICT integration holds significant potential for productivity enhancement, given its pivotal role in developing students' college-ready skills. However, previous studies have shown uncertainties in the relationship between principals’ leadership styles and teachers' motivation in certain schools. Therefore, this study aims to examine the relationship between principals' leadership styles and TVET teachers' motivation in implementing ICT. A correlational study was conducted, employing survey methods, and utilizing the Principal Instructional Management Rating Scale (PIMRS) for instructional leadership styles and the Multifactor Leadership Questionnaire (MLQ) for transformational leadership styles. The instruments used to measure teachers' motivation were adapted from the instruments aligning with the TAM model. Data analysis included percentage, mean, standard deviation, frequency, regression, and Pearson's correlation analysis, with a significance level set at p = 0.05. The results revealed that TVET teachers' responses to the leadership styles of school principals in Malaysia are satisfactory. Furthermore, a significant correlation exists between the principal's leadership styles and TVET teachers’ motivation. In addition, regression analysis demonstrates that transformational dan instructional leaderships influence TVET teachers’ motivation in implementing ICT. These findings provide support for previous research indicating that the principal's leadership styles indeed influence teachers' motivation

A legal analysis on marital rape in Malaysia / Muhammad Syafiq Mohd Sahar, Mohamad Arif Aizuddin Masrom and Mohamad Zakwan Mohamad Anuar

The purpose of this research is to analyze the issue of marital rape in Malaysia from the legal perspective. In the first phase of the project, we discuss the current law and situation of marital rape in Malaysia. Then, we compare the law with other countries that have applied it such as Scotland and United States. The second phase of the project, we carried out field work in the context that we handle questionnaires to the respondents that relates to this issue and to the public in order to receive their feedback. The final phase of this project is where we conclude our research and recommend solutions that can be done by the legislature and authorities in Malaysia in order to handle this issue efficiently

Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

Search for supersymmetry in events with one lepton and multiple jets in proton-proton collisions at root s=13 TeV

Peer reviewe

Measurement of t(t)over-bar normalised multi-differential cross sections in pp collisions at root s=13 TeV, and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions

Peer reviewe

An embedding technique to determine ττ backgrounds in proton-proton collision data

An embedding technique is presented to estimate standard model tau tau backgrounds from data with minimal simulation input. In the data, the muons are removed from reconstructed mu mu events and replaced with simulated tau leptons with the same kinematic properties. In this way, a set of hybrid events is obtained that does not rely on simulation except for the decay of the tau leptons. The challenges in describing the underlying event or the production of associated jets in the simulation are avoided. The technique described in this paper was developed for CMS. Its validation and the inherent uncertainties are also discussed. The demonstration of the performance of the technique is based on a sample of proton-proton collisions collected by CMS in 2017 at root s = 13 TeV corresponding to an integrated luminosity of 41.5 fb(-1).Peer reviewe

Measurement of the Splitting Function in &ITpp &ITand Pb-Pb Collisions at root&ITsNN&IT=5.02 TeV

Data from heavy ion collisions suggest that the evolution of a parton shower is modified by interactions with the color charges in the dense partonic medium created in these collisions, but it is not known where in the shower evolution the modifications occur. The momentum ratio of the two leading partons, resolved as subjets, provides information about the parton shower evolution. This substructure observable, known as the splitting function, reflects the process of a parton splitting into two other partons and has been measured for jets with transverse momentum between 140 and 500 GeV, in pp and PbPb collisions at a center-of-mass energy of 5.02 TeV per nucleon pair. In central PbPb collisions, the splitting function indicates a more unbalanced momentum ratio, compared to peripheral PbPb and pp collisions.. The measurements are compared to various predictions from event generators and analytical calculations.Peer reviewe

Measurement of nuclear modification factors of gamma(1S)), gamma(2S), and gamma(3S) mesons in PbPb collisions at root s(NN)=5.02 TeV

The cross sections for ϒ(1S), ϒ(2S), and ϒ(3S) production in lead-lead (PbPb) and proton-proton (pp) collisions at √sNN = 5.02 TeV have been measured using the CMS detector at the LHC. The nuclear modification factors, RAA, derived from the PbPb-to-pp ratio of yields for each state, are studied as functions of meson rapidity and transverse momentum, as well as PbPb collision centrality. The yields of all three states are found to be significantly suppressed, and compatible with a sequential ordering of the suppression, RAA(ϒ(1S)) > RAA(ϒ(2S)) > RAA(ϒ(3S)). The suppression of ϒ(1S) is larger than that seen at √sNN = 2.76 TeV, although the two are compatible within uncertainties. The upper limit on the RAA of ϒ(3S) integrated over pT, rapidity and centrality is 0.096 at 95% confidence level, which is the strongest suppression observed for a quarkonium state in heavy ion collisions to date. © 2019 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.Peer reviewe

Electroweak production of two jets in association with a Z boson in proton-proton collisions root s =13 TeV

A measurement of the electroweak (EW) production of two jets in association with a Z boson in proton-proton collisions at root s = 13 TeV is presented, based on data recorded in 2016 by the CMS experiment at the LHC corresponding to an integrated luminosity of 35.9 fb(-1). The measurement is performed in the lljj final state with l including electrons and muons, and the jets j corresponding to the quarks produced in the hard interaction. The measured cross section in a kinematic region defined by invariant masses m(ll) > 50 GeV, m(jj) > 120 GeV, and transverse momenta P-Tj > 25 GeV is sigma(EW) (lljj) = 534 +/- 20 (stat) fb (syst) fb, in agreement with leading-order standard model predictions. The final state is also used to perform a search for anomalous trilinear gauge couplings. No evidence is found and limits on anomalous trilinear gauge couplings associated with dimension-six operators are given in the framework of an effective field theory. The corresponding 95% confidence level intervals are -2.6 <cwww/Lambda(2) <2.6 TeV-2 and -8.4 <cw/Lambda(2) <10.1 TeV-2. The additional jet activity of events in a signal-enriched region is also studied, and the measurements are in agreement with predictions.Peer reviewe