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The concentrating of alizarin using a reverse osmosis process
S. S. MADAENI,H. DANESHVAR
Journal of the Serbian Chemical Society , 2005,
Abstract: Membrane technologies in general and reverse osmosis in particular have been employed for the concentrating of solutions. In this study, the concentrating of a heat sensitive alizarin extracted from madder root was realized using an FT30 reverse osmosis membrane. The effects of cross flow velocity, transmembrane pressure and pH on the flux and rejection were studied. Increasing the transmembrane pressure increased the flux while the rejection was constant. At pH 7 8, the highest flux was achieved. This study showed that reverse osmosis is the process of choice for the concentrating of alizarin solutions. The optimum operating conditions were 1.0 m/s crossflow velocity, 16 bars transmembrane pressure and pH 7. The system was tested for 12 h without severe fouling problems.
Evaluation of the concentration of Proinflammatory/Pro Th1 Cytokines IFN- and TNF-α and anti inflammatory/Pro Th2 Cytokines IL-13 and IL-4 in breast milk and their relationship to atopic dermatitis
Moradkhani S,Mahdi M,Daneshvar H,Bazargan Harandi N
Tehran University Medical Journal , 2013,
Abstract: Background: Atopic dermatitis (AD) is one of the most common chronic, highly pruritic and inflammatory skin diseases. The exclusive influence of breastfeeding in the prevention of inflammatory diseases is a matter of debate. In this study, we aimed to determine the concentration of interferon-gamma (IFN-γ), tumor necrosis factor-alpha (TNF-α), interleukin-13 (IL-13) and interleukin-4 (IL-4) cytokines as anti Th2 or anti Th1 cytokines in breast milk and their relationship with atopic dermatitis in breastfed infants.Methods: This study carried out in Afzalipour Hospital of kerman during one year from 2010 to 2011, we selected 50 breastfed infants with AD as cases and 50 healthy infants without AD or any other allergic disease as the controls. The concentrations of pro- and anti-inflammatory cytokines were measured by ELISA in the mothers' milk. The demographic characteristics were recorded in a data collection form. Moreover, severity of the disease was determined by SCORAD index. T-test and logistic regression were used for assessment of the correlation among study variables. Results: The concentrations of IFN-γ and IL-13 were significantly higher (respectively, P=0.04, and P=0.02) in the case group. However, logistic regression revealed that only IFN-γ significantly increased the risk for atopic dermatitis (P=0.02). Concentration of TNF-α was similar in the milk from mothers belonging to the two groups.Conclusion: The results indicate that the concentrations of IFN-γ, IL-13 and IL-4 cytokines are higher in the milk of mothers whose infants have AD. However, the risk for atopic dermatitis increases by 49% by every ten-unit (in pg/mL) increase in the level of IFN-γ.
Review of Information Technology Effect on Competitive Advantage- Strategic Perspective
Poolad Daneshvar,Dr.H.N.Ramesh
International Journal of Engineering Science and Technology , 2010,
Abstract: Each organisation is aware of the special effects, benefits and implication of Information technology (IT) in business performance and also its capacity in building sustainable competitive advantages. In business, IT is used through the value chains of activities which help the organisation to optimize and control functions of operationsfor easy decision making. Also, the use of IT as a competitive weapon has become a popular instrument to influence on a particular organisational performance and the processes that will allow a smooth coordination of technology and corporate as well as business strategies. This article attempts to integrate them in as a more comprehensive viewpoint ,then turns to the major research issues in understanding the impact of information technology on competitive strategy and mention the importance of alignment of IT/IS and business strategies of organisations as a key issue for managers to formulate the organisational business and IT/IS strategies.
Decomposition and Decoloration of Acid Orange 7 using Sub-critical Water Method
S. Daneshvar Hosseini,F. Salak Asghari,H. Yoshida
Lecture Notes in Engineering and Computer Science , 2009,
Abstract:
ASYMPTOMATIC BACTERIURIA AND PYURIA IN PREGNANCY
M Rahimkhani,H Khavari-Daneshvar,R Sharifian
Acta Medica Iranica , 2008,
Abstract: "nPregnant women are at increased risk for urinary tract infection (UTI) but in many cases infection is asymptomatic. This study was performed to determine the incidence of asymptomatic bacteriuria and pyuria in pregnant women. A total of 86 pregnant women during first trimester and 56 nonpregnant women were evaluated. All subjects were clinically identified to have no signs and symptoms of UTI. Clean catch midstream urine samples were collected for both groups. Urine samples were examined microscopically and were cultured. Bacteriological examination revealed asymptomatic bacteriuria in 25 (29.1%) and 3 (5.4%) of the study group and controls, respectively (P < 0.05). Microscopic analysis of urine revealed pyuria in 18 (20.9%) and 3 (5.4%) of the study group and controls, respectively (P < 0.05). In study group, Escherichia coli were found in 20%, Staphylococcus epidermidis in 36%, Staphylococcus haemolyticus in 12%, streptococcus group D in 12%, Staphylococcus saprophyticus in 12% and Proteus mirabilis in 8%. In control group, E. coli were found in 33.3% and S. epidermidis in 66.7%. Our results show that the incidence of asymptomatic bacteriuria is significantly higher in pregnant women than nonpregnant women. The main finding in the present study was that 29.1% of the pregnant women who were in first trimester had asymptomatic bacteriuria which is much higher than figures reported from other countries. The use of microscopic urinanalysis was not an effective method of detecting asymptomatic bacteriuria and urine culture is necessary for screening these pregnant women.
Effect of Bactocell and Dry Whey on Performance and Carcass Characteristics of Broiler Chickens
A.H. Rastad,A. Samie,F. Daneshvar
Journal of Science and Technology of Agriculture and Natural Resources , 2008,
Abstract: This experiment was conducted in a completely randomized design with five treatments and four replications. There were 15 chicks in each replication during the first 30 days and 10 chicks from day 30 to the end of experiment. Diets were control (without probiotic and dry whey) and levels 500 and 750 gm/ton probiotic, and each level contained two diets with and without %2 dry whey. Daily weight gain, feed intake, feed conversion rate at the end of each experiment and carcass characteristics including weights of neck, Liver, wing, heart, and abdominal fat on the 49th day of experiment were measured. Chicks which received diets with 500 and 750 mg/ton probiotic +%2 dry whey were significantly heavier than other chicks (p
Sleep as an Indicator For Pain Relief in an Infant : Acase Study
Z. DANESHVAR
Hayat Journal of Faculty of Nursing & Midwifery , 2000,
Abstract: Sleep is not often used to indicate Pain Relief in infants.If Infants and childeren "s sleep Patterns are Distured by Painful Procedures they dont experience Restful sleep . Further more if Pain and lack of sleep are Continuous, other more global! Functional beheriors Such as Sociability and Consolability may be affected because lack"nof and disturbed sleep were Cues of infant Pain.There fore if rest Ful sleep is increased, Pain is decreased. Similar Study in adults were observed that who received Patient Controlled analgesia had less nocturnal awakehing and less interference with spontaneous move ment such as moving and walking secandory to build and"nrepair tissue.Several abutt studise Provide evidence of tissue remeval a ssocited with release of the growth"nhormone during deep sleep and %70 of the total Secretion of this hormone occurs during sleep ."nin this Case Study infant 's increased sleep was used as an indicator of Pain"nrelief for an 8-month old female infant with respiratory Failure Secondary to Sepsis. A sleep"nactivity record documented total hours of sleep and longest hours of Sleep after nonana Igesic"nand analgesic interventions to mediate the infant 's Pain, sleep appeare to be a useful indicator"nof the afficacy of pain treat ment for infants.
RIRE, UN PASSEPORT POUR FUIR L’EXIL: LE RéCIT D’UN EXIL IRONIQUE RIRE, UN PASSEPORT POUR FUIR L’EXIL: LE RéCIT D’UN EXIL IRONIQUE
Esfaindyar Daneshvar
Revue Electronique de Litterature Francaise : RELIEF , 2012,
Abstract: The particularity of the Iranian community that was formed in France in the 1980s, emanates from its essential composition of artists, writers and intellectuals who became political refugees. As the experience of diaspora affects these authors intimately, it incites them to fundamentally explore the theme of exile. After three decades of diaspora the situation is changing since some authors have been able to open “doors” on the closed world of their home countries by means of literary works translated into or written directly in French. These books address issues related to current Western societies (intercultural exchanges, globalization and Islam) and this is perhaps one of the reasons why this new literature arouses the interest of a European audience who wishes to better understand coexisting cultures. La particularité de la communauté iranienne constituée en France dans les années 1980 réside dans sa composition spécifique majoritairement artistes, écrivains et intellectuels, pour la plupart réfugiés politiques. L’expérience de la diaspora mène ces auteurs à explorer amplement le thème de l’exil, puisque cet événement les touche intimement. Après trois décennies de diaspora, les choses évoluent car certains auteurs ont su ouvrir des portes sur le monde fermé de leur pays d’origine avec des oeuvres traduites ou écrites directement en fran ais. Ces oeuvres abordent les problématiques liées à l’actualité des sociétés occidentales (interculturalisme, mondialisation ou islam). Peut-être est-ce là une des raisons pour laquelle cette nouvelle littérature suscite de plus en plus l’intérêt du public européen désireux de mieux comprendre des cultures coexistantes.
CRISPR-Cas9 in gene therapy: much control on breaking, little control on repairing
Kaveh Daneshvar
PeerJ , 2015, DOI: 10.7287/peerj.preprints.818v2
Abstract: Recent advances in CRISPR-Cas9 genome editing tool have made great promises to basic and biomedical research as well as gene therapy. Efforts to make the CRISPR-Cas9 system applicable in gene therapy are largely focused on two aspects: 1) increasing the specificity of this system by eliminating off-target effects, and 2) optimizing in vivo delivery of the CRISPR-Cas9 DNA constructs to target cells and limiting the expression of Cas9 and gRNA to prevent immune responses. However, there is an unnoted but crucial consideration about the mode of DNA repair at the lesion caused by CRISPR-Cas9. In this commentary, I briefly highlight recent publications on in vivo use of the CRISPR-Cas9 system in gene therapy. I then discuss the undesired on-target DNA repair events that can occur as a result of the activity of CRISPR-Cas9. Overall, this commentary underscores the need for more study on controlled DNA repair in systems targeted with CRISPR-Cas9 genome editing tools.
Dynamics of Oscillators Coupled by a Medium with Adaptive Impact
Roozbeh Daneshvar
Physics , 2012,
Abstract: In this article we study the dynamics of coupled oscillators. We use mechanical metronomes that are placed over a rigid base. The base moves by a motor in a one-dimensional direction and the movements of the base follow some functions of the phases of the metronomes (in other words, it is controlled to move according to a provided function). Because of the motor and the feedback, the phases of the metronomes affect the movements of the base while on the other hand, when the base moves, it affects the phases of the metronomes in return. For a simple function for the base movement (such as $y = \gamma_{x} [r \theta_1 + (1 - r) \theta_2]$ in which $y$ is the velocity of the base, $\gamma_{x}$ is a multiplier, $r$ is a proportion and $\theta_1$ and $\theta_2$ are phases of the metronomes), we show the effects on the dynamics of the oscillators. Then we study how this function changes in time when its parameters adapt by a feedback. By numerical simulations and experimental tests, we show that the dynamic of the set of oscillators and the base tends to evolve towards a certain region. This region is close to a transition in dynamics of the oscillators; where more frequencies start to appear in the frequency spectra of the phases of the metronomes.
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