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Constituents of the Essential Oil of Sea Fennel (Crithmum maritimum L.) Growing Wild in Turkey
M. Musa Ozcan,Luis G. Pedro,A. Cristina Figueiredo,Jose G. Barroso 한국식품영양과학회 2006 Journal of medicinal food Vol.9 No.1
The essential oils isolated by hydrodistillation from freshly obtained aerial parts of sea fennel (Crithmum mar-itimumL.) were found to be a yellow liquid, obtained in a yield of 0.2% (vol/wt) based on wet weight. The essential oils ob-tained from young leaves and branches of C. maritimum, collected at two different locations in Turkey (Sipahili and Yesilo-vacik), were analyzed by gas chromatography-mass spectrometry. Twenty-three components were identified accounting formore than 99% of the total oils. The oils contained mainly monoterpenes, amounting to 89.0% and 99.6%, respectively, ofthe oils, with .-terpinene (36% and 32%), .-phellandrene (21% and 22%), and sabinene (13% and 9%) as the main compo-nents.
Investigation on the Mineral Contents of Capers (Capparis spp.) Seed Oils Growing Wild in Turkey
M. Musa Özcan 한국식품영양과학회 2008 Journal of medicinal food Vol.11 No.3
Minor and major mineral contents of seed oils of Capparis ovata Desf. var. canescens (Coss.) Heywood and Capparis spinosa var. spinosa used as pickling products in Turkey were determined by inductively coupled plasma atomic emission spectrometry. The seed oils contained Al, P, Na, Mg, Fe, and Ca, in addition to fatty acids. The highest mineral concentrations measured were 14.91–118.81 mg/kg Al, 1,489.34–11,523.74 mg/kg P, 505.78–4,489.51 mg/kg Na, 102.15–1,655.33 mg/kg Mg, 78.83–298.14 mg/kg Fe, and 1.04–76.39 mg/kg Ca. The heavy metal concentrations were less than the limit of detection in all oil samples. The results may also be useful for the evaluation of nutritional information.
Anticancer activities of some newly synthesized pyrazole and pyrimidine derivatives
Ashraf M. Mohamed,Weal A. El-Sayed,Musaed A. Alsharari,Husam R. M. Al-Qalawi,Mousa O. Germoush 대한약학회 2013 Archives of Pharmacal Research Vol.36 No.9
A series of pyrazolopyridine and pyridopyrimidinederivatives 2–6 were newly synthesized using3,5-bisarylmethylene-1-methylpiperidone as the startingmaterial. The anticancer activities of the synthesizedcompounds were evaluated using 59 different human tumorcell lines, representing cancers of CNS, ovary, renal,breast, colon, lung, leukemia, and melanoma, prostate aswell as kidney. Some of the tested compounds, especiallythose with a fluorine substituent at the para-position in thephenyl ring and those with a pyridopyrimidine-2-thionewith a free –NH or –SH, exhibited greater in vitro antitumoractivities at low concentrations (log 10 [GI50] =-4.6) against the human tumor cell lines. Additionally,some of the compounds had moderate inhibitory effects onthe growth of the cancer cell lines. The detailed synthesis,spectroscopic data and antitumor properties of the synthesizedcompounds are reported.
Thermal Design of Automobile Exhaust Based Thermoelectric Generators: Objectives and Challenges
K. M. SAQR,M. K. Mansour,Md Nor Musa 한국자동차공학회 2008 International journal of automotive technology Vol.9 No.2
The potential for thermoelectric power generation (via waste heat recovery onboard automobiles) to displace alternators and/or provide additional charging to a vehicle battery pack has increased with recent advances in thermoelectric material processing. In gasoline fueled vehicles (GFVs), about 40% of fuel energy is wasted in exhaust heat, while a smaller amount of energy (30%) is ejected through the engine coolant. Therefore, exhaust-based thermoelectric generators (ETEG) have been a focus for GFV applications since the late 1980s. The conversion efficiency of modern thermoelectric materials has increased more than three-fold in the last two decades; however, disputes as to the thermal design of ETEG systems has kept their overall efficiency at limited and insufficient values. There are many challenges in the thermal design of ETEG systems, such as increasing the efficiency of the heat exchangers (hot box and cold plate), maintaining a sufficient temperature difference across the thermoelectric modules during different operating conditions, and reducing thermal losses through the system as a whole. This paper focuses on a review of the main aspects of thermal design of ETEG systems through various investigations performed over the past twenty years. This paper is organized as follows: first, the construction of a typical ETEG is described. The heat balance and efficiency of ETEG are then discussed. Then, the third section of this paper emphasizes the main objectives and challenges for designing efficient ETEG systems. Finally, a review of ETEG research activities over the last twenty years is presented to focus on methods used by the research community to address such challenges. The potential for thermoelectric power generation (via waste heat recovery onboard automobiles) to displace alternators and/or provide additional charging to a vehicle battery pack has increased with recent advances in thermoelectric material processing. In gasoline fueled vehicles (GFVs), about 40% of fuel energy is wasted in exhaust heat, while a smaller amount of energy (30%) is ejected through the engine coolant. Therefore, exhaust-based thermoelectric generators (ETEG) have been a focus for GFV applications since the late 1980s. The conversion efficiency of modern thermoelectric materials has increased more than three-fold in the last two decades; however, disputes as to the thermal design of ETEG systems has kept their overall efficiency at limited and insufficient values. There are many challenges in the thermal design of ETEG systems, such as increasing the efficiency of the heat exchangers (hot box and cold plate), maintaining a sufficient temperature difference across the thermoelectric modules during different operating conditions, and reducing thermal losses through the system as a whole. This paper focuses on a review of the main aspects of thermal design of ETEG systems through various investigations performed over the past twenty years. This paper is organized as follows: first, the construction of a typical ETEG is described. The heat balance and efficiency of ETEG are then discussed. Then, the third section of this paper emphasizes the main objectives and challenges for designing efficient ETEG systems. Finally, a review of ETEG research activities over the last twenty years is presented to focus on methods used by the research community to address such challenges.
Asaad Mubarak Hussien MUSA(Asaad Mubarak Hussien MUSA ),Abubkr Ahmed Elhadi ABDELRAHEEM(Abubkr Ahmed Elhadi ABDELRAHEEM ),Abbas Abdelrahman ADAM(Abbas Abdelrahman ADAM ) 한국유통과학회 2023 The Journal of Asian Finance, Economics and Busine Vol.10 No.2
This study’s goal is to investigate the effects of board size, the number of annual board meetings, the profitability of the company, and the audit Committee on the disclosure of climate change in Saudi companies listed on the stock exchange. It was conducted to evaluate affecting some factors on carbon emissions by the regression model. The study uses the content analysis method. Data was collected from the annual and sustainability reports, and the platform database Refinitiv, an LSEG (London Stock Exchange Group Company) for the period 2018 to 2021. The study sample is 51 companies. The study findings showed Saudi Arabia saw its first significant overall drop in CO2 emissions with a 22.61 MtCO2 decline (3.93%) in 2018. The study revealed a positive connection between the size of the director’s board, and the disclosure of carbon emissions in Saudi firms listed on the stock market. While other factors are not related to the number of director’s board meetings, the audit committee, and the profitability of the company on the disclosure of carbon emissions in the Saudi companies listed on the stock exchange.
HOW MANY INTERNATIONAL FUNDS MAKE A DIVERSIFIED PORTFOLIO?
Musa Essayyad,Jeff Madura,Donald M Marx People&Global Business Association 1996 Global Business and Finance Review Vol.1 No.1
Previous academic research on international mutual funds (IMFs) has concentrated on measuring performance of individual mutual funds in terms of their asset selection, timing, and diversification. None, however, have addressed the superiority of cross-IMF diversification, and no research has focused on the optimal number of IMFs in a diversified portfolio, or the marginal contributions to risk reduction of an additional IMF Based on Solnik's (1974) methodology, this short paper has shown that further risk reduction is attainable through cross-IMF investing, and complete effective international diversification is achieved with an average of eight IMFs per portfolio.
Reasons for operation cancellations at a teaching hospital
Mahmoud Abu Abeeleh,Tareq M. Tareef,Amjad Bani Hani,Nader Albsoul,Omar Q. Samarah,M. S. ElMohtaseb,Musa Alshehabat,Zuhair Bani Ismail,Omar Alnoubani,Salameh S. Obeidat,Sami Abu Halawa 대한외과학회 2017 Annals of Surgical Treatment and Research(ASRT) Vol.93 No.2
Purpose: To report rates of and reasons for operation cancellation, and to prioritize areas of improvement. Methods: Retrospective data were extracted from the monthly reports of cancelled listed operations. Data on 14 theatres were collected by the office of quality assurance at Jordan University Hospital from August 2012 to April 2016. Rates and reasons for operation cancellation were investigated. A Pareto chart was constructed to identify the reasons of highest priority. Results: During the period of study, 6,431 cases (9.31%) were cancelled out of 69,066 listed cases. Patient no-shows accounted for 62.52% of cancellations. A Pareto analysis showed that around 80% of the known reasons for cancellation after admission were due to a lack of surgical theatre time (30%), incomplete preoperative assessment (21%), upper respiratory tract infection (19%), and high blood pressure (13%). Conclusion: This study identified the most common reasons for operation cancellation at a teaching hospital. Potential avoidable root causes and recommended interventions were suggested accordingly. Future research, available resources, hospital policies, and strategic measures directed to tackle these reasons should take priority.
Indrajit Patra,Duaa Abdul Rida Musa,Reena Solanki,Yasser Fakri Mustafa,Zukhra Ziyatovna Yakhshieva,Jihad M. Hadi,Milad Kazemnejadi 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.122 No.-
Synthesis of high viscosity, ecofriendly, and low melting point poly(ionic liquid)s (LMP-PIL) with network structure has been introduced by the reaction of 1,10,10 0 (1,3,5 triazine 2,4,6 triyl) tris (3 methyl 1H imidazol 3 ium) iodide ionic liquid (TAIm[I] IL) monomer with disodium salts of various open-chain carboxylic acids as well as sulfonic acids via a polycondensation on counter ions (PC-CI). Change in alkyl group length in carboxylate, as well as sulfonate, provide a broad spectrum of properties in terms of viscosity, density, and solubility for the resulting PILs. The physical properties of the PILs including, viscosity, melting point, boiling point, density,M n, and polydispersity (Ð), were determined in this study. Also, thermal behavior of the PILs were studied in comparison with the corresponding monomers. The ecofriendly PILs served as an efficient solvent and ligand for the Cu-catalyzed Heck and Sonogashira CAC coupling reactions. High to excellent yields were obtained for various coupling products under mild conditions at melting points of the PILs. Also, the coupling products could be obtained with direct scalability. The prepared PILs could be recycled several times from the homogenous reaction mixture with preservation of the intrinsic properties. Also, a detailed study was conducted on the mechanism of the coupling reactions.