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Periodic Orbits in the Photogravitational Restricted Problem When the Primaries Are Triaxial Rigid Bodies 被引量:1
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作者 Preeti Jain Rajiv Aggarwal +2 位作者 Amit Mittal Abdullah 《International Journal of Astronomy and Astrophysics》 2016年第1期111-121,共11页
We have studied periodic orbits generated by Lagrangian solutions of the restricted three-body problem when both the primaries are triaxial rigid bodies and source of radiation pressure. We have determined periodic or... We have studied periodic orbits generated by Lagrangian solutions of the restricted three-body problem when both the primaries are triaxial rigid bodies and source of radiation pressure. We have determined periodic orbits for different values of  (h is energy constant;μ is mass ratio of the two primaries;are parameters of triaxial rigid bodies and are radiation parameters). These orbits have been determined by giving displacements along the tangent and normal at the mobile co-ordinates as defined in our papers (Mittal et al. [1]-[3]). These orbits have been drawn by using the predictor-corrector method. We have also studied the effect of triaxial bodies and source of radiation pressure on the periodic orbits by taking fixed value of μ. 展开更多
关键词 Restricted Three-Body Problem Periodic Orbits Triaxial Rigid Body Radiation Pressure
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Comparison of semilunar coronally repositioned flap with gingival massaging using an Ayurvedic product(irimedadi taila) in the treatment of class-Ⅰ gingival recession: A clinical study
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作者 Amit Kumar Mishra Kanteshwari Kumathalli +4 位作者 Raja Sridhar Rahul Maru Brijesh Mangal Sameer Kedia Ravi Shrihatti 《World Journal of Clinical Cases》 SCIE 2014年第10期534-540,共7页
AIM: To study the comparison in terms of root coverage the effect of gingival massaging using an ayurvedic product and semilunar coronally repositioned flap(SCRF) to assess the treatment outcomes in the management of ... AIM: To study the comparison in terms of root coverage the effect of gingival massaging using an ayurvedic product and semilunar coronally repositioned flap(SCRF) to assess the treatment outcomes in the management of Miller's class Ⅰ gingival recessions over a-6mo period. METHODS: The present study comprised of total of 90 sites of Miller's class-Ⅰ gingival recessions in the maxillary anteriors, the sites were divided into three groups each comprising 30 sites, Group Ⅰ-were treated by massaging using a Placebo(Ghee) Group Ⅱ-were treated by massaging using an ayurvedic product(irimedadi taila). Group Ⅲ-were treated by SCRF. Clinical parameters assessed included recession height, recession width, probing pocket depth, width of attached gingiva, clinical attachment level and thickness of keratinized tissue. Clinical recordings were performed at baseline and 6 mo later. The results were analyzed to determine improvements in the clinical parameters. The comparison was done using Wilcoxon signed rank test. The overall differences in the clinical improvements between the three groups was done using Kruskal-Wallis test. The probability value(P-value) of less than 0.01 was considered as statistically significant.RESULTS: Non-surgical periodontal therapy and gingival massaging improves facial gingival recessions and prevents further progression of mucogingival defects. Root coverage was achieved in both the experimental groups. The SCRF group proved to be superior in terms of all the clinical parameters.CONCLUSION: Root coverage is significantly better with semilunar coronally repositioned flap compared with the gingival massaging technique in the treatment of shallow maxillary Miller class Ⅰ gingival recession defects. 展开更多
关键词 GINGIVAL RECESSION Semilunar FLAPS GINGIVAL massaging NON-SURGICAL
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Restricted Three Body Problem with Stokes Drag Effect
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作者 Mamta Jain Rajiv Aggarwal 《International Journal of Astronomy and Astrophysics》 2015年第2期95-105,共11页
The existence and stability of stationary solutions of the restricted three body problem under the effect of the dissipative force, Stokes drag, are investigated. It is observed that there exist two non collinear stat... The existence and stability of stationary solutions of the restricted three body problem under the effect of the dissipative force, Stokes drag, are investigated. It is observed that there exist two non collinear stationary solutions. Further, it is also found that these stationary solutions are unstable for all values of the parameters. 展开更多
关键词 RESTRICTED Three Body Problem LIBRATION POINTS Linear Stability DISSIPATIVE FORCES STOKES Drag
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Effect of Perturbations in Coriolis and Centrifugal Forces on the Non-Linear Stability of <i>L</i><sub>4</sub>in the Photogravitational Restricted Three Body Problem
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作者 Kavita Chauhan S. N. Rai Rajiv Aggarwal 《International Journal of Astronomy and Astrophysics》 2015年第4期275-290,共16页
Effect of perturbations in Coriolis and centrifugal forces on the non-linear stability of the libration point L4 in the restricted three body problem is studied when both the primaries are axis symmetric bodies (triax... Effect of perturbations in Coriolis and centrifugal forces on the non-linear stability of the libration point L4 in the restricted three body problem is studied when both the primaries are axis symmetric bodies (triaxial rigid bodies) and the bigger primary is a source of radiation. Moser’s conditions are utilized in this study by employing the iterative scheme of Henrard for transforming the Hamiltonian to the Birkhoff’s normal form with the help of double D’Alembert’s series. It is found that L4 is stable for all mass ratios in the range of linear stability except for the three mass ratios μc1, μc2 and μc3, which depend upon the perturbations ε1 and ε1 in the Coriolis and centrifugal forces respectively and the parameters A1,A2,A3 and A4 which depend upon the semi-axes a1,b1,c1;a2,b2,c2 of the triaxial rigid bodies and p, the radiation parameter. 展开更多
关键词 Restricted Three Body Problem Axis Symmetric Bodies Non-Linear Stability LIBRATION Point L4 Double D’Alembert’s Series Method
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Photon Emission from Quark Gluon Plasma at RHIC and LHC
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作者 Poonam Jain Yogesh Kumar 《Journal of Modern Physics》 2014年第8期686-692,共7页
We work on photon production through annihilation and Compton, and annihilation with scattering (AWS) processes through a quark-gluon plasma (QGP) in high energy nuclear collision incorporating the parametrization fac... We work on photon production through annihilation and Compton, and annihilation with scattering (AWS) processes through a quark-gluon plasma (QGP) in high energy nuclear collision incorporating the parametrization factors in strong coupling value and thermal dependent quark mass obtained through a coupling value. We find that photon yield increases with the increasing of the temperature and dominated by early times. We also compare the influence of coupling value on the spectrum of thermal photons. The production rate of photons is observed in the range of low and intermediate transverse momentum. The results are compared with other work. 展开更多
关键词 DIRECT PHOTON QUARK-GLUON PLASMA
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Emission of Thermal Photon in Heavy-Ion Collisions
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作者 Poonam Jain Yogesh Kumar Deepak Kumar 《Journal of Modern Physics》 2014年第9期792-799,共8页
We study the leading order processes for photon production using a phenomenological model of quark-gluon plasma (QGP) in relativistic heavy-ion collisions incorporating the parametrization factors in thermal dependent... We study the leading order processes for photon production using a phenomenological model of quark-gluon plasma (QGP) in relativistic heavy-ion collisions incorporating the parametrization factors in thermal dependent quark mass. The measurement of photon emission provides valuable insights into the early conditions of QGP. The production rate is observed in the low and intermediate range of energy and transverse momentum. The photon yield is found to increase marginally with the effect of thermal dependent quark mass. The results are little enhanced and in good agreement with other work. 展开更多
关键词 PHOTONS QUARK-GLUON PLASMA
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Hereditary fructose intolerance: A comprehensive review
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作者 Sumit Kumar Singh Moinak Sen Sarma 《World Journal of Clinical Pediatrics》 2022年第4期321-329,共9页
Hereditary fructose intolerance(HFI)is a rare autosomal recessive inherited disorder that occurs due to the mutation of enzyme aldolase B located on chromosome 9q22.3.A fructose load leads to the rapid accumulation of... Hereditary fructose intolerance(HFI)is a rare autosomal recessive inherited disorder that occurs due to the mutation of enzyme aldolase B located on chromosome 9q22.3.A fructose load leads to the rapid accumulation of fructose 1-phosphate and manifests with its downstream effects.Most commonly children are affected with gastrointestinal symptoms,feeding issues,aversion to sweets and hypoglycemia.Liver manifestations include an asymptomatic increase of transaminases,steatohepatitis and rarely liver failure.Renal involvement usually occurs in the form of proximal renal tubular acidosis and may lead to chronic renal insufficiency.For confirmation,a genetic test is favored over the measurement of aldolase B activity in the liver biopsy specimen.The crux of HFI management lies in the absolute avoidance of foods containing fructose,sucrose,and sorbitol(FSS).There are many dilemmas regarding tolerance,dietary restriction and occurrence of steatohepatitis.Patients with HFI who adhere strictly to FSS free diet have an excellent prognosis with a normal lifespan.This review attempts to increase awareness and provide a comprehensive review of this rare but treatable disorder. 展开更多
关键词 HEREDITARY FRUCTOSE INTOLERANCE Children Liver STEATOHEPATITIS ALDOLASE
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Immune Dysfunction in Cirrhosis 被引量:19
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作者 Mohd Talha Noor Piyush Manoria 《Journal of Clinical and Translational Hepatology》 SCIE 2017年第1期50-58,共9页
Cirrhosis due to any etiology disrupts the homeostatic role of liver in the body.Cirrhosis-associated immune dysfunction leads to alterations in both innate and acquired immunity,due to defects in the local immunity o... Cirrhosis due to any etiology disrupts the homeostatic role of liver in the body.Cirrhosis-associated immune dysfunction leads to alterations in both innate and acquired immunity,due to defects in the local immunity of liver as well as in systemic immunity.Cirrhosis-associated immune dysfunction is a dynamic phenomenon,comprised of both increased systemic inflammation and immunodeficiency,and is responsible for 30%mortality.It also plays an important role in acute as well as chronic decompensation.Immune paralysis can accompany it,which is characterized by increase in antiinflammatory cytokines and suppression of proinflammatory cytokines.There is also presence of increased gut permeability,reduced gut motility and altered gut flora,all of which leads to increased bacterial translocation.This increased bacterial translocation and consequent endotoxemia leads to increased blood stream bacterial infections that cause systemic inflammatory response syndrome,sepsis,multiorgan failure and death.The gut microbiota of cirrhotic patients has more pathogenic microbes than that of noncirrhotic individuals,and this disturbs the homeostasis and favors gut translocation.Prompt diagnosis and treatment of such infections are necessary for better survival.We have reviewed the various mechanisms of immune dysfunction and its consequences in cirrhosis.Recognizing the exact pathophysiology of immune dysfunction will help treating clinicians in avoiding its complications in their patients and can lead to newer therapeutic interventions and reducing the morbidity and mortality rates. 展开更多
关键词 CIRRHOSIS Immune dysfunction INFLAMMATION Liver disease
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Development of a novel myconanomining approach for the recovery of agriculturally important elements from jarosite waste 被引量:3
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作者 Ankita Bedi Braj Raj Singh +3 位作者 Sunil K.Deshmukh Nisha Aggarwal Colin J.Barrow Alok Adholeya 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2018年第5期356-367,共12页
In this study, an ecofriendly and economically viable waste management approach have been attempted towards the biosynthesis of agriculturally important nanoparticles from jarosite waste. Aspergillus terreus strain J4... In this study, an ecofriendly and economically viable waste management approach have been attempted towards the biosynthesis of agriculturally important nanoparticles from jarosite waste. Aspergillus terreus strain J4 isolated from jarosite(waste from Debari Zinc Smelter,Udaipur, India), showed good leaching efficiency along with nanoparticles(NPs) formation under ambient conditions. Fourier-transform infrared spectroscopy(FT-IR) and transmission electron microscopy(TEM) confirmed the formation of NPs. Energy dispersive X-ray spectroscopy(EDX analysis) showed strong signals for zinc, iron, calcium and magnesium,with these materials being leached out. TEM analysis and high resolution transmission electron microscopy(HRTEM) showed semi-quasi spherical particles having average size of 10‐50 nm. Thus, a novel biomethodology was developed using fungal cell-free extract for bioleaching and subsequently nanoconversion of the waste materials into nanostructured form. These biosynthesized nanoparticles were tested for their efficacy on seed emergence activity of wheat(Triticum aestivum) seeds and showed enhanced growth at concentration of 20 ppm. These nanomaterials are expected to enhance plant growth properties and being targeted as additives in soil fertility and crop productivity enhancement. 展开更多
关键词 BIOLEACHING Fourier transform infraredspectroscopy (FTIR) Transmission electronmicroscopy (TEM) JarositeNanoparticles Seed-emergence activity
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A study of attributable variables impacting orthopedic trauma surgical training
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作者 Rajeev Shukla Vishal Singh Champawat Ravi Kant Jain 《Chinese Journal of Traumatology》 CAS CSCD 2019年第5期278-280,共3页
Purpose:In medical colleges,reside nt training programs must provide adequate surgical experiences,making them qualified at the end of residency program.It is generally believed that it would take more time for a surg... Purpose:In medical colleges,reside nt training programs must provide adequate surgical experiences,making them qualified at the end of residency program.It is generally believed that it would take more time for a surgical resident to perform surgical procedures than a board-certified surgeon.There is no current benchmark w让h regards to operative time and surgical cases involving orthopedic surgery residents.In this study,we focused on two key aspects of surgical training variables,namely,surgical duration&C-arm shoots when the procedure is done by a faculty surgeon in comparison to done by an orthopedic reside nt under supervision of faculty surgeon.Methods:It is an observational prospective study,we observed patients undergoing 1 of 5 common orthopedic trauma operations in a community teaching hospital.We recorded two variables,'skin to'skin surgical duration&number of image intensifier television/C-arm shoots of faculty surgeons and orthopedic resident(postgraduate-3yr)under supervision of faculty surgeon.We calculated mean difference of two variables with or without resident&determined statistical significance,we also compared functional outcome at final follow-up.Results:The total number of procedure observed was 402.On observing summarized results of all surgical procedures,faculty surgeons took on an average 33 min lesser(p<0.05)&on an average 37 lesser number of shoots(p<0.05)than resident surgeons.The difference in surgical duration tended to increase with the greater complexity of the surgical dissection.The difference in number of C-arm shoots tended to increase with the increase in surgical duration in closed procedures.In all the five procedures there was no significant difference(p>0.05)in functional outcome of cases performed by faulty surge on and resident.Conclusion:Little data has been previously published regarding the impact of teaching orthopedic resident in operating room.We demonstrate that resident participation increases the procedure time for commonly performed orthopedic procedures and also the number of C-arm shoots,hence there is a need for technical training facilities outside the operating room such as in cadaveric labs,saw bone labs&virtual surgery simulation.Also the preoperative plan should be thoroughly discussed by faculty surge on with residents. 展开更多
关键词 ORTHOPEDICS SURGICAL TRAINING SURGICAL PROCEDURES RESIDENT TRAINING
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The association of the uterine motion with bladder volume during radiotherapy in gynecological malignancies
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作者 Bhandari Virendra Mutneja Abhinav +4 位作者 Gurjar Omprakash Saadvik Raghuram Bagdare Priyusha Gupta Krishnlal Singh Kanchan 《Journal of Cancer Metastasis and Treatment》 CAS 2016年第1期139-143,共5页
Aim:This study was performed to assess the extent of interfraction uterine motion during radiotherapy for cervical cancer and uterine body carcinoma while maintaining a strict bladder filling protocol.Methods:Twenty-f... Aim:This study was performed to assess the extent of interfraction uterine motion during radiotherapy for cervical cancer and uterine body carcinoma while maintaining a strict bladder filling protocol.Methods:Twenty-four patients with cervical cancer or uterine body carcinoma who were treated on a linear accelerator,were recruited.During the course of external beam radiotherapy,cone beam computed tomographic scans were taken,once at the start of treatment and then weekly until the completion of the radiotherapy course.Patients were instructed to maintain a strict bladder filling protocol.After negating the effect of patient’s setup error by offline cone beam computed tomographic imaging,the position of the uterus was defined in the clinical target volume.Then the position of the uterus was compared in the following weekly scans.The position of the uterus was also correlated with the position and the filling of the bladder.This change in uterus position was measured separately in the anterioposterior(AP),superioinferior(SI),and lateral directions.Results:According to calculations based on weekly imaging,The mean values of shift in AP,SI,and lateral directions were respectively 0.67,0.29,and 0.23 The mean extent of motion in the uterine position on a daily basis for individual patients ranged from-2.28 to+1.3 in AP,-0.56 to+0.71 in SI,and from-0.6 to+0.45 in lateral directions.Conclusion:At least once a week cone beam computed tomography might be necessary to minimize the geometrical miss and deliver the planned doses to the target tissue and normal structure provide best results with minimum toxicity by maintaining a bladder volume of about 100 mL and an empty rectum during the whole course of treatment.The daily anatomical shift and contour of the patients maintaining a bladder volume of approximately 100 mL with an empty rectum may result in asymmetrical conforming to the planning target volume and hence appropriate and adequate planning target volume margins are required. 展开更多
关键词 Uterine motion weekly computed tomographic evaluation intensity modulated radiotherapy inter-fraction variation bladder volume
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