3,403 research outputs found
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
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
New closed forms for a dilogarithmic integral, related integrals, and series
In this study, we provide a new closed form for the integral We further extend this
result by generalizing the integral to the form where and 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
and , thereby broadening the scope of our
inquiry. Utilizing one of our newly established identities, we provide a novel
closed form for the series for all , in terms of the Riemann zeta
function, where represents the th generalized harmonic number of order ,
and denotes the th generalized skew-harmonic number of
order . Overall, our research contributes to the theory of infinite series
and integrals.Comment: 26 page
Closed form for 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 positive integers. In this paper, we contribute to this
endeavour by deriving Bernoulli's formula for for all
positive integers and nonegative integers , 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: for all non-negative
integers and . In addition to providing closed forms for these
series, we unveil new identities for various generalized digamma series in the
elegant form , where
are real-valued constants determined by our formulas. Furthermore, we present
ten definite integrals over the interval 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
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
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
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.
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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.
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