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Search Results: 1 - 10 of 3736 matches for " resource adequacy "
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Incentives for Supply Adequacy in Electricity Markets: An Application to the Mexican Power Sector
Carreón-Rodríguez, Víctor G.;Rosellón, Juan;
Economía mexicana. Nueva época , 2009,
Abstract: this paper studies resource adequacy, i.e. the market design dilemma of ensuring enough generation capacity in the long run. international experiences have shown that it is difficult that the market alone provides incentives to attract enough investment in capacity reserves. we analyze various measures to cope with this problem, including moth-ball reserves, capacity payments, icap and call options. we then construct a model to analyze the structure of incentives for the expansion of electricity supply in the spot market, and capacity in the long run electricity reserve market. through a game-theory model, we analyze price convergence in three markets: the peak spot market, the non-peak spot market, and the long-run capacity reserve market. we finally carry out a simulation for mexican power generation. the combination of cfe's virtual market, together with capacity payments, has eventually resulted in capacity generation expansion similar to what would be attained in an open electricity market, such as the one modelled in our study. but this does not necessarily imply that the mexican electricity industry will not need in the future -if the generation market is fully open to private investment- some of the discussed capacity incentive mechanisms.
Challenges Facing Techinical Training in Kenya  [PDF]
Antony K. Sang, George M. Muthaa, Zacharia K. Mbugua
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.31018
Abstract: Technical education is necessary if Kenya is to industrialize by the year 2030. Relevant skills have to be given in Technical training institutions. The training in T.T.Is should therefore be market driven. The current study was designed to investigate on challenges facing skill training in T.T.Is. This study focused on the adequacy of training facilities, relevance of facilities, relevance of curriculum and the trainers’ level of qualifications. Descriptive survey research design was used for the study. Snowball sampling technique was used to identify T.T.I graduates and their employers became automatic respondents. A sample size of one hundred and sixty eight respondents was used for the study. The study found out that training facilities used by T.T.Is are inferior to facilities used in industries and business organizations Majority of respondents indicated that T.T.I graduates posses’ very irrelevant skills in relation to skill needs in industries and business organizations. This implies that training policies need to be urgently reviewed to ensure that training is market driven. The study recommends an urgent overhaul of the training curriculum to enhance adequacy of skill training to skill needs in industries and business organizations.
Association of Comorbidity with Depression Treatment Adequacy among Privately Insured Patients Initiating Depression Treatment  [PDF]
Yong Joo Rhee, Mara Gustafson, Michael Ziffra, David C. Mohr, Neil Jordan
Open Journal of Depression (OJD) , 2015, DOI: 10.4236/ojd.2015.42002
Abstract: This study examined the association among comorbidity, type of depression treatment, and depression treatment adequacy among privately insured depression patients using claims data from 165,569 employees. Individuals newly diagnosed with depression (n = 2364) were identified using ICD-9 diagnosis codes. Logistic regression models were used to determine if certain medical and psychiatric comorbidities were associated with depression treatment type (medication only, psychotherapy only, or combined treatment) and treatment adequacy. Approximately half of the sample (56.7%) received medication only, 26.8% received psychotherapy and medication, and 16.5% received psychotherapy only. The medication only group had the highest rate (50.2%) of receiving minimally adequate treatment, while those who received the combined treatment had the lowest rate (21.0%). Patients with comorbid anxiety disorders were significantly more likely to receive combined treatment or psychotherapy alone. Those who had comorbid musculoskeletal pain were significantly more likely to receive combined treatment. After controlling for treatment type, patients with comorbid diabetes and asthma had higher rates of receiving adequate treatment than patients with other comorbid conditions. There is a continous need for practice-system level interventions to improve the proportion of privately insured patients with new depressive episodes who receive adequate depression treatment.
Mass Transfer in a Centrifugal Turbine Agitator-Pump  [PDF]
Valery Katz, Gedalya Mazor
Journal of Water Resource and Protection (JWARP) , 2014, DOI: 10.4236/jwarp.2014.65046
Abstract:

This article is a continuation of the research, centering on a vacuum-filtration system, which is designed to reduce the concentration of calcium in water; a process is also known as—water softening. The problem of solving the concentration distribution of the initial (embryonic) particles of CaCO3-particles, which were introduced into the limited volume of the apparatus with a turbine agitator-pump, is addressed through the use of diffusion and deterministic-stochastic models of mass transfer. The solution of the extreme problem allows determining the most important process parameters, such as time of dispersions homogenization and the dispersion mass flow rate to the surface of a special filter. For these parameters a comparative analysis of the adequacy of the theory was found through experiments, performed in the study. We found that uniform distribution of concentrations along the height of the apparatus is achieved by the angular velocity of the rotation 400 rpm for the turbine with 6 - 7 blades at the time of homogenization 14s. In this case, the dispersion mass flow to the surface of the cylindrical filter is 3 50 mg/s at an average concentration of the introduced CaCO3 particles, which is equal to 10 g/L. We determined that the accuracy of the results depends on: the coordinates of the material input in the apparatus volume, the surface shape of the filter and the volumetric flow rate of the liquid (water), being discarded by the turbine blades in the normal direction to their surface.

Research on the Relationship of Commercial Bank’s Loan Loss Provision and Earning Management and Capital Management  [PDF]
Xianlei Dong, Jia Liu, Beibei Hu
Journal of Service Science and Management (JSSM) , 2012, DOI: 10.4236/jssm.2012.52021
Abstract: This paper reviewed and analyzed the development of our nation’s loan loss provision system, then studied the relations of commercial bank loan loss provision and earnings management and capital management through empirical study. This paper selected 14 domestic commercial banks of year 2001-2009 as data sample, using Kanagaretnam et al.’s (2003) research method, dividing the loan loss provision into two parts that is discretionary and nondiscretionary part, and empirically studied the relationship of discretionary part of loan loss provision and earnings before taxes and provisions (EBTP) and capital adequacy ratio (CAR). Empirical results show that: there is significant positive correlation between the discretionary loan loss provisions and earnings before taxes and provisions (EBTP), and there is significant negative correlation between the discretionary loan loss provisions and capital adequacy ratio (CAR). That provides evidence for the relation of bank loan loss provision and earnings management and capital management. In the last, combining with empirical research findings and the status of the loan loss provision system of China’s commercial banks, this paper made several suggestions to improve the system of loan loss provision.
The Evaluation of Dialysis Adequacy by KT/V in Hemodialysis Patients
Seyed Seifollah Beladi Mousavi,Khojaste Hosaini Nejad,Abbas Ali Zeraati
Jundishapur Scientific Medical Journal , 2012,
Abstract: Background and Objective: Patients with ESRD need adequate dialysis. According to DOQI guidelines, minimum dialysis dose by KT/V in patients under hemodialysis (HD) is 1.2 or greater. Subjects and Methods: In a cross- sectional study, we evaluated the value of KT/V among HD patients in shahid Beheshti Hospital of Abadan, Iran. HD was performed for 3 to 4 hours, using synthetic dialyzer and the bicarbonate- based dialysate. Blood flow rate, dialysate flow rate and ultrafiltration rate were 250 to 300 cc /min, 500cc/min and zero or 1 to 3 liters, respectively. Blood sampling for BUN was done immediately before and after the dialysis session. We used the following equation to estimate the KT/V from the percent reduction in urea (PRU). KT/V = (0.026 ×PRU) – 0.460Results: 54 HD patients (28 females and 26 males) with the mean age of 39 ± 14.2 years were enrolled in the study. The most common cause of ESRD was hypertension (24.07%) followed by, unknown (22.22%), DM (18.51%), Chronic Glomerulonephritis (14.81%), urinary tract abstraction (12.96%) and poly cystic kidney disease (7.40%). KT/V was less than 1.2 in 87.03 patients (n=47). There was no significant difference in the valve of KT/V in men and women (P= 0.54) and in different hemoglobin concentration (p=0.58). Conclusion: The results of the study show that the most of our HD patients have not received minimum dialysis dose and we should evaluate and correct its causes.
The evaluation of hemodialysis adequacy during the use of different dialysis membranes
Sta?evi? Zvonimir,?ubari?-Gorgieva Gordana,Kr?marevi? Jelica,Stoli? Radoica
Srpski Arhiv za Celokupno Lekarstvo , 2007, DOI: 10.2298/sarh0702048s
Abstract: Introduction: Hemodialysis efficacy that significantly influences morbidity and mortality of patients can be evaluated by different widely used indices of adequacy. Objective The aim of the study was to evaluate the adequacy of hemodialysis in the group of patients on maintenance hemodialysis and to examine the influence of different dialysis membranes on the indices of adequacy and frequency of symptoms and complications developing during dialysis treatment. Method The study involved 14 patients dialyzed in three successive months with three different types of dialyzers: E3 (Hemomed) - cuprophane membrane, 1.3 m2, F6 (Hemomed) - polysulfone membrane, 1.3 m2, CM23 (Zdravlje) - cuprophane membrane, 1.25 m2. Each type of dialyzers was used during one month, meaning during 12 successive 4-hour hemodialyses. Results Mean value of Kt/V index was 1.39±0.21 for E3 dialyzer, 1.18±0.24 for F6 dialyzer and 1.44±0.25 for CM23 dialyzer. The difference between the indices was statistically significant (p<0.05). Mean protein catabolic rate (PCRn) ranged between 1.6 and 1.7 and no significant difference was found between the dialyzers used. The frequency of hypertension episodes was similar during the hemodialysis with different dialyzers, but the incidence of different symptoms and hypotension episodes was significantly lower during hemodialysis with polysulfone membrane. Conclusion Hemodialysis with three examined types of dialyzers enabled acceptable dialysis adequacy. Dialyzers with cuprophane membrane enabled significantly higher Kt/V index, but the incidence of symptoms and hypotension was significantly lower during hemodialysis with polysulfone membrane.
German Translation Theories and Their Practicalness
Carol Alexandru MOHR
Studii de Stiinta si Cultura , 2012,
Abstract: The translator should not be perceived as a simple producer of texts based on other texts, but as an expert, with skills, tasks and precise responsibilities, who works in cooperation with other "actors", that are part of the translating process. Text translating is not a simple linguistic act, but a complex one, that involves Linguistics, Hermeneutics (because texts must be interpreted) and Semiology (because signs and symbols must be decoded). In this paper is being explained the difference between translation studies (or translatology) and the linguistic theory of translation and why translatological concepts like “purpose”, “adequacy” and “actor” (as they were defined by Rei , Vermeer and M ntt ri) are essential and necessary required for a complete description and a responsible fulfillment of translating acts.
The Role of Consciousness in Human Cognitive Activity
Victor M. Allakhverdov
Psychology in Russia : State of Art , 2009,
Abstract: The problem of consciousness is examined in the article. It is argued that all the existing approaches to consciousness do not explain the role consciousness plays in human life. An attempt of revealing and describing the principles of the mind’s work is made. Experimental phenomena observed by the author and his followers, particularly, the tendency of previously non-realized ideas not to be realized subsequently, are reviewed. The discussion of these phenomena allows to formulate a novel view on the nature of consciousness.
The effect of increasing blood flow rate on dialysis adequacy in hemodialysis patients
Borzou S,Gholyaf M,Zandiha M,Amini R
Saudi Journal of Kidney Diseases and Transplantation , 2009,
Abstract: Inadequacy of dialysis is one of the determinants of morbidity and mortality in pa-tients undergoing dialysis. The aim of this study was to assess the effect of increasing blood flow rate during hemodialysis (HD) on the adequacy of dialysis. In this study, 42 patients on mainte-nance HD were assessed. Body weight and blood urea nitrogen (BUN) levels before and after HD sessions were recorded on all the study patients. Volume of ultrafiltration, the duration of dialysis, percentage of filter clearance and flow rate of the dialysate were collected and documented in a checklist. Both Kt/V and urea reduction ratio (URR) were determined at two different blood pump speeds, i.e. 200 and 250 mL/min. During HD, hemodynamic status and vital signs of patients were monitored and controlled. After collecting the necessary data, efficiency of dialysis was calculated using the standard formula. Descriptive and analytical statistics was carried out to analyze the data. Using blood flow rate of 200 mL/min, 16.7% of patients had Kt/V higher than 1.3 and URR higher than 65. On the other hand, with flow rate of 250 mL/min, 26.2% of patients had Kt/V higher than 1.3 and 35.7% of subjects had URR higher than 65. Paired t-test with 95% confidence showed a sig-nificant difference in dialysis efficiency between two groups. Our data further confirm that increa-sing the blood flow rate by 25% is effective in increasing dialysis adequacy in HD patients.
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