A Study of Management Information System (MIS) Competency and Adoption Strategy Among Oil Companies in Libya

The objectives of the research was to examine the relationship between MIS competency and MIS strategy adoption to maximize the utilized of resource management on oil companies in Libya and also to examine the influence of MIS adoption factors such as subjective norm, usefulness and ease of use of the product influence on MIS competency on companies in Libya on the perspective of resource management of the product. This study is important to contribute to better understanding for production process on how important MIS strategy, competency and strategic MIS. It will help companies to make some changes based on the result of this research. The research confirmed the relationship between subjective norm, perceived usefulness and ease of u contribute were positively related to MIS competency. It provides estimates of the research model and suggests which components of the adoption item will get more successful in Oil Companies. The research models are being pursued in the adoption of organization competency to succeed. Through this research companies able to understand the all level production and see how well the management has done its part to watch over their MIS strategy. This study is designed to provide the benefit for management practitioners, especially for stakeholder in oil companies in Libya. For practitioners, the aim is to offer a holistic and in-depth overview of how to forms the product through the determination of MIS competency and strategy. Furthermore, this study confirmed to enhance and develop MIS strategy to make products and all activities using MIS as efficient and effective. This study also significance to fill the gaps in the literature review and contribute to the increase of strategy in the firm, company and organizations. This study also intends to help practitioners to understand what factors influence the MIS strategy using competency and strategic MIS

New closed forms for a dilogarithmic integral, related integrals, and series

In this study, we provide a new closed form for the integral $$\int_0^1 \frac{\mathrm{Li}_2(z) \ln(1+z)}{z}\, \mathrm{d}z.$$ We further extend this result by generalizing the integral to the form $$\int_0^1 \frac{\mathrm{Li}_2(z) \ln(1+az)}{z}\, \mathrm{d}z,$$ where $a \in \mathbb{C} \setminus(-\infty, -1)$ and $\mathrm{Li}_2(z)$ is the dilogarithm function. This extension is achieved by leveraging our newly established findings in conjunction with V\u{a}lean's results. Furthermore, we provide explicit closed forms for associated integrals, present and prove a novel transformation formula for double infinite series, expressing them as the sum of the square of an infinite series and another infinite series. We leverage this relationship to introduce new families of identities. In addition to these, we provide a new proof of Jonqui\`ere's inversion formula for order 4 and arguments $-\frac{1}{z}$ and $\frac{z}{z-1}$, thereby broadening the scope of our inquiry. Utilizing one of our newly established identities, we provide a novel closed form for the series $$\sum_{k=1}^\infty \frac{\overline{H}_k^{(m)} + (-1)^{k-1}H_k^{(m)}}{k^m},$$ for all $\Re{m} > 1$, in terms of the Riemann zeta function, where $H_k^{(m)} = 1 + \frac{1}{2^m} + \frac{1}{3^m} + \cdots + \frac{1}{k^m}$ represents the $k$th generalized harmonic number of order $m$, and $\overline{H}_k^{(m)} = 1 - \frac{1}{2^m} + \frac{1}{3^m} - \cdots + \frac{(-1)^{k-1}}{k^m}$ denotes the $k$th generalized skew-harmonic number of order $m$. Overall, our research contributes to the theory of infinite series and integrals.Comment: 26 page

Synthesis and characterization of a star-shaped nematic discotic liquid crystal containing 1, 3, 5-triazine core and bisazobenzene at the peripheral arms

A new three arm liquid crystalline material containing bisazobenzene and linked by flexible spacers (4-propyloxy-[4-biphenyloxyalkyl]-4`-(4-phenylazo)azobenzene has been synthesized and characterized by spectroscopic methods. The transition temperatures and phase behaviors were studied by differential scanning calorimetry (DSC) and polarizing optical microscopy (POM). The synthesized compounds exhibited nematic discotic phase and the stability of the layer depends on the spacer length for the compounds

Closed form for ∑k=1nkp\sum_{k=1}^n k^p through the Hermite integral representation of the Hurwitz zeta function

Sums of positive integer powers have captivated the attention of mathematicians since ancient times. Over the centuries, mathematicians from diverse backgrounds have provided expressions for the sum of positive integer powers of the first $n$ positive integers. In this paper, we contribute to this endeavour by deriving Bernoulli's formula for $\sum_{k=1}^n k^p,$ for all positive integers $n$ and nonegative integers $p$, through the utilization of the Hermite integral representation of the Hurwitz zeta function.Comment: If the approach presented in this paper is encountered in other existing literature, it is kindly requested that the reader contact the author via emai

New closed forms for a class of digamma series and integrals

The pursuit of closed forms for infinite series has long been a focal point of research. In this paper, we contribute to this endeavor by presenting closed forms for the class of digamma series: $$\sum_{k=1}^\infty \frac{\psi\left(\frac{2k+2n+5}{4}\right) - \psi\left(\frac{2k+2n+3}{4}\right)}{(2k + \alpha)^2},$$ $$\sum_{k=1}^\infty (-1)^k \frac{\psi\left(\frac{2k+2n+5}{4}\right) - \psi\left(\frac{2k+2n+3}{4}\right)}{(2k + \alpha)^2},$$ for all non-negative integers $\alpha$ and $n$. In addition to providing closed forms for these series, we unveil new identities for various generalized digamma series in the elegant form $a_0 + a_1 \pi + a_2 \pi^2 + a_3 \pi^3$, where $a_0, \ldots, a_3$ are real-valued constants determined by our formulas. Furthermore, we present ten definite integrals over the interval $(0, 1)$ that have not been previously studied in the literature and appear to be nearly impossible to evaluate. Combining these series and integrals can lead to the discovery of even more new results. Our findings contribute to the study of closed forms for infinite series and integrals, offering novel results and potential avenues for further exploration.Comment: 33 page

Adsorptive De-Colouration of Textile Wastewater using an Acid-Modified Sawdust

Batch study of the decolourisation of wastewater from a local textile facility by concentrated Sulfuric acidmodified sawdust was conducted. The adsorbent was characterized using Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Elemental Diffraction X - ray Spectroscopy (EDS) techniques. The effects of adsorbent dose, contact time and temperature were investigated. The characterization analysis indicates that the adsorbent has potential adsorption sites with several pores, and carbon content as high as 66.77%.The percentage color removal from the wastewater increased with adsorbent dose, contact time and temperature. The efficiency of the adsorbent is high, with a dose as low as 1 g removing as much as 88 % of the color from the wastewater.Keywords: Adsorption, Batch studies, Modification, and Wastewate

THE BENEFITS OF EMPLOYING MULTI SKILLED TECHNICIANSTO MAINTENANCE PROCESSES

Many researchers and practitioners applied lean theory to planning, designing and executing construction projects. However, few of their studies have been conducted in maintaining such projects. Maintaining and operating any constructed facility costs more than its initial cost. The aim of this study is to improve maintenance processes by simulating the lean concept of multi-skilled technician to an existing maintenance process. Statistical data and maintenance process map of Saudi Consolidated Electric Company (SCECO) are modeled in Extend+BPR® to be an experimental tool for evaluating the benefits of multi-skilled technicians. The simulation models of this study showed significant improvement in both preventive and corrective maintenance processes

Breast tumor size at first presentation in Haitian breast cancer patients treated in a large U.S. safety net hospital: initial

This study assessed the tumor size at the time of first presentation of Haitian breast cancer patients compared to Non-Haitian Black and White patient populations of a large safety net hospital as an objective measure of diagnosis and treatment delay. Studies have shown that race and ethnicity have an influence in determining the breast cancer stage, treatment, and mortality rates. However, when we looked at the rates of breast cancer, screening among Black subgroups, such as Haitian women, was assessed and remained unclear because national studies do not differentiate Haitians from other Black populations. Two population-based studies that investigated breast cancer screening among Haitian women suggest that screening rates among Haitian women are lower than that of White and Black women. For this reason, many studies are diagnosed at later stages. This study to aimed to improved patient education. In this IRB approved retrospective study used the hospital electronic medical records and the cancer registry of breast cancer patients treated between 2013-2015. Female and male patients with primary breast cancer treated with surgery, complete imaging and medical data sets were included; patients with recurrent breast cancer or incomplete data sets were excluded. Demographics/race/ethnicity, tumor type and stage, receptor status, onco-type, proliferation rate as well as tumor size by radiology and pathology were recorded. vii Statistical analysis using ANOVA, T-test, U-test and Kruskal-Wallis, compared mean and median tumor sizes. In this study only tumor size was analyzed and reported. The results show 57/125 (45.6%) Haitian Black patients, 27/125 (21.6%) Non-Hispanic White, 41/125 (32.8%), Non-Haitian Black were included in the initial analysis of this study. The mean tumor size of Haitian Black (mean=3.09 cm, SD 2.91; median=2.3cm) was significantly larger compared to Black (mean=2.07cm, SD=1.77; median=1.6cm; p=0.022) or White (mean=1.88, SD=1.26; median=1.4; p = 0.008) patients. There was no significant difference in tumor size between Non-Haitian Black and White patients. Haitian Breast Cancer patients present with significantly larger tumors when compared to other patient populations. Improved patient education and intensified out-reach programs are needed to counteract this marked delay in initial diagnosis and treatment. Education and socio-economic differences must be further evaluated and all possible cofactors are needed to determine the most effective interaction to counteract this disparity

Reprocessing of tungsten alloy swarf by oxidation-reduction, pressing and sintering

Tungsten and the tungsten alloy group materials have a wide range of uses extending from everyday ones, e.g. the coil of an incandescent lamp or the contact tip of an electrical switch or an automobile horn, to components of nuclear fusion reactors or ion drive motors in space probes. The reason for this range of uses lies in the many outstanding properties of tungsten, in particular its high melting point, low vapor pressure, high atomic number, good electrical and thermal conductivity. In the Tungsten–Oxygen system (W–O) there are not only the stoichiometric oxides WO3, WO2.9, WO2.7, WO2, but also non-stoichiometric structures that represent the ordered or partially ordered defect structures of the oxygen-rich oxide in which the central W atom is octahedrally surrounded by six oxygen atoms. In WO3 neighbouring octahedra are in contact only at the corners. With increased oxygen deficiency (reduction, conversion to lower oxides) common edges and surfaces are progressively formed. The aim of this work was to produce a homogeneous powder for recycling from heavy metal swarf. [Continues.