216 research outputs found
Using of Activated Jurdiga for Bleaching of Sunflower Edible Oils
Bleaching process is cost intensive process for the refining vegetable oils and this is due to the consumption of bleaching earth which is imported from abroad which contributes in raising the total operating cost of the process. The objective of this study is to investigate the possibility of using activated jurdiga to bleach edible oils to meet the local demand and lower production cost. Jurdiga was brought from Um-Shoka area in Sennar State, Sudan. The chemical composition of jurdiga was determined. The analysis of jurdiga revealed high total sodium carbonate equal to 24 % and sodium bicarbonate equal to 20%. Jurdiga was crushed and was activated by 5%, 5%, 10% and 20% of concentrated () . The bleaching efficiency of the produced activated jurdiga for bleaching of sunflower oil was investigated by adding various dosages of 1.5, 2.5, 3.5 and 4.5 grams of activated Jurdiga at temperatures of 80℃, 100℃ and 120℃ and compared with commercial fuller earth. The conditions that gave best results for the sulfuric acid activation and bleaching test was found to be 10% acid concentration, 4.5 grams of activated jurdiga at 120℃ for 70 gram of oil. The bleaching efficiency of the activated jurdiga was 70 %. This result is compararable with commercial fuller earth which has 90% bleaching efficiency. Key words: Bleaching, Fuller earth, Activation, Jurdiga, Edible oils
The Authors Abuse of the Moral Right in the Jordanian Legislation: A Comparative Study
The moral rights of the author are fundamental and protect their intellect and creativity. Despite its importance to the author in particular and society in general, leaving such rights unrestricted is not acceptable because the objective of the law is to regulate various transactions and relationships between people. Therefore, establishing frameworks governing copyright law is deemed useful. By way of examining Jordanian, local, and international legislation, the researchers find that the legislator has not effectively regulated this matter to prevent the author from exercising their moral rights in a way that harms others. Despite the close connection between the moral right and the economic one, the issue of moral right abuse by the author has not been addressed, even though its elements are present in some of the authors practices. Furthermore, the legal texts tackling the subject are more contentious due to their vague and ambiguous wording, leaving legal interpreters to exert effort to understand the intentions behind these words and terms. In the quest to investigate this topic, the study draws several conclusions, the most important of which is the absence of any obstacle to applying the theory of the authors abuse of their moral rights in their practices. The study also shows that the value of compensation specified in the law is not defined by criteria, making it impossible to estimate the value of the loss suffered by the affected party as a result of the authors exercise of their moral rights, as the value of profit is not identified
Evaluation of the Total Antioxidant Capacity of Bitter and Sweet Varieties of Ferula assa-foetida and Bunium persicum
Background: Due to low information about total antioxidant capacity of three species of plants native to Ilam province which are used in the ethnobotanical knowledge of this region, This study was drafting to evaluation the antioxidant ability of bitter and sweet varieties of Ferula assa-foetida and Bunium persicum with therapeutic potential on gynecological diseases.Methods: The methanolic extracts of two different variants of F. assa-foetida and B. persicum gum-resin were prepared and then antioxidant effects were evaluated by ferric reducing-antioxidant power assay.Results: Our results showed that methanolic extracts of B. persicum gum-resin could significantly revealed antioxidant effect in comparison to two different variants of F. assa-foetida (P<0.05). While antioxidant capacity between bitter and sweet varieties of F. assa-foetida were not statistically significant.Conclusion: Our results showed that both B. persicum and the bitter and sweet varieties of F. assa-foetida native to Ilam province, located in west of Iran, could have medicinal therapeutic effects relatively through direct oxidation prevention
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Framework for Analyzing Safeguards Alarms and Response Decisions
This paper describes a quantitative approach to help evaluate and respond to safeguards alarms. These alrms may be generated internally by a facility's safeguards systems or externally by individuals claiming to possess stolen Special Nuclear Material (SNM). This approach can be used to identify the most likely cause of an alarm - theft, hoax, or error - and to evaluate alternative responses to alarms. Possible responses include conducting investigations, initiating measures to recover stolen SNM, and replying to external threats. Based on the results of each alarm investigation step, the evaluation revises the likelihoods of possible causes of an alarm, and uses this information to determine the optimal sequence of further responses. The choice of an optimal sequence of responses takes into consideration the costs and benefits of successful thefts or hoaxes. These results provide an analytical basis for setting priorities and developing contingency plans for responding to safeguards alarms
Impact of incentive spirometer on tip shoulder and right hypochondrial pain post laparoscopic cholecystectomy
Background: Laparoscopic cholecystectomy (LC) continues to be more evolving. Pain remains the main annoying symptom postoperative.
Objectives: This study aimed to proof if using incentive spirometry (IS) after LC will alleviate tip shoulder and right hypochondrial pain.
Patients and Methods: On 90 patients undergoing LC at Kasr Al ainy hospitals and National Hepatology and Tropical Medicine Research Institute (NHTMRI) who were identified as having chronic calcular cholecystitis clinically and radiographically by ultrasonography, a prospective randomized controlled research was conducted. Two groups are formed. Group I (n = 45) receiving IS (consisting of 20 slow, deep breaths with a spirometry while sitting or semi sitting every 2 hours beginning at 2 hours postoperative) . There will be no respiratory over activity in Group II (n = 45). The "Visual Analogue Scale" (VAS) score used to further analyses shoulder and right hypochondrial pain.
Results: Group I average pain score was significantly lower than Group II average pain score at 2 hours, 4 hours, and 6 hours (p-value 0.001), as well as at 8 hours (p-value =0.007). However, there were no significant differences between the study group and the control group on the second postoperative day (p-value = 0.900). In comparison to the control group, the study group receives a significantly lower dose of an analgesic (p-value 0.001).
Conclusion: IS can be used routinely post LC at first day postoperative alleviating shoulder and right hypochondrial pain also decreasing analgesics requirement postoperative
Ageing is associated with disrupted reinforcement learning whilst learning to help others is preserved.
Funder: Wellcome Trust (Wellcome); doi: https://doi.org/10.13039/100004440Funder: DH | National Institute for Health Research (NIHR); doi: https://doi.org/10.13039/501100000272Funder: Christ Church Junior Research Fellowship Christ Church Research Centre GrantReinforcement learning is a fundamental mechanism displayed by many species. However, adaptive behaviour depends not only on learning about actions and outcomes that affect ourselves, but also those that affect others. Using computational reinforcement learning models, we tested whether young (age 18-36) and older (age 60-80, total n = 152) adults learn to gain rewards for themselves, another person (prosocial), or neither individual (control). Detailed model comparison showed that a model with separate learning rates for each recipient best explained behaviour. Young adults learned faster when their actions benefitted themselves, compared to others. Compared to young adults, older adults showed reduced self-relevant learning rates but preserved prosocial learning. Moreover, levels of subclinical self-reported psychopathic traits (including lack of concern for others) were lower in older adults and the core affective-interpersonal component of this measure negatively correlated with prosocial learning. These findings suggest learning to benefit others is preserved across the lifespan with implications for reinforcement learning and theories of healthy ageing
Causes of elective cesarean delivery on maternal request in Aljouf, Saudi Arabia
Background: Recently observed there is a steadily higher rate of cesarean delivery worldwide mostly due to the increasing number of women requesting an elective cesarean section on maternal request without valid indication. The aim of the study was to determine the causes of elective cesarean delivery on maternal requests in Aljouf Saudi Arabia.Methods: This was a descriptive cross-sectional study and data was evaluated by completing seven questionnaires and interviews with laboratory reports who were admitted for cesarean delivery at the Obstetrics department of Maternity and Children Hospital (MCH) Aljouf, Saudi Arabia from January 2020 to December 2020. A total of 141 Saudi women of age between 18 and over 35 years were enrolled, including those who have singleton pregnancy, no complications during pregnancy, and no medical indication for cesarean delivery.Results: 141 women reported willingness to request cesarean delivery. The mean systolic 120±6.23, diastolic 75±2.45 blood pressure mm of Hg, and fasting blood sugar level 4.1±1.1 mmol/l have been found within the normal limit. The ultrasound (US) confirmed singleton pregnancy without any abnormalities. Data reveals that common causes of elective cesarean section on maternal request to avoid the episiotomy 77.3%, fear of labor pain 69.5%, trauma to the vagina 79.4%, uncertainty about timing 61.7%, losing a baby during vaginal delivery 54.6%, experience other members 41.8%, the risk for baby 39%, prolapse or incontinence24.1%, unsatisfactory sexual intercourse 17.7% and the undesirable experience of the previous vaginal delivery 12%.Conclusions: Maternal request for cesarean delivery is considered one of the reasons for increasing the rate of cesarean delivery in Saudi Arabia. To avoid the episiotomy and fear of labor pain may strong causes for choosing cesarean delivery
Microscopics of meson degrees of freedom in nucleons and mesons in nuclei - what can be seen in the process of quasielastic knockout of mesons by high-energy electrons
Developed earlier concept of quasielastic knock out of pions from nucleons by
high-energy electrons is propounded as a tool for checking microscopical model
( - fluctuation) for decay of N to different channels and
Preparata model of nucleus structure.Comment: 6 pages, 5 figures, Talk given at 16 Baldin Symposium in June 200
Multiplicity distribution and spectra of negatively charged hadrons in Au+Au collisions at sqrt(s_nn) = 130 GeV
The minimum bias multiplicity distribution and the transverse momentum and
pseudorapidity distributions for central collisions have been measured for
negative hadrons (h-) in Au+Au interactions at sqrt(s_nn) = 130 GeV. The
multiplicity density at midrapidity for the 5% most central interactions is
dNh-/deta|_{eta = 0} = 280 +- 1(stat)+- 20(syst), an increase per participant
of 38% relative to ppbar collisions at the same energy. The mean transverse
momentum is 0.508 +- 0.012 GeV/c and is larger than in central Pb+Pb collisions
at lower energies. The scaling of the h- yield per participant is a strong
function of pt. The pseudorapidity distribution is almost constant within
|eta|<1.Comment: 6 pages, 3 figure
Elliptic flow from two- and four-particle correlations in Au + Au collisions at sqrt{s_{NN}} = 130 GeV
Elliptic flow holds much promise for studying the early-time thermalization
attained in ultrarelativistic nuclear collisions. Flow measurements also
provide a means of distinguishing between hydrodynamic models and calculations
which approach the low density (dilute gas) limit. Among the effects that can
complicate the interpretation of elliptic flow measurements are azimuthal
correlations that are unrelated to the reaction plane (non-flow correlations).
Using data for Au + Au collisions at sqrt{s_{NN}} = 130 GeV from the STAR TPC,
it is found that four-particle correlation analyses can reliably separate flow
and non-flow correlation signals. The latter account for on average about 15%
of the observed second-harmonic azimuthal correlation, with the largest
relative contribution for the most peripheral and the most central collisions.
The results are also corrected for the effect of flow variations within
centrality bins. This effect is negligible for all but the most central bin,
where the correction to the elliptic flow is about a factor of two. A simple
new method for two-particle flow analysis based on scalar products is
described. An analysis based on the distribution of the magnitude of the flow
vector is also described.Comment: minor text change
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