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| 1 | OPTIMAL MODE OF SEDIMENT TRANSPORT BY SHALLOW FLOWS IN UPLAND AREAS显示文摘Soil erosion and sediment movement are serious problems of upland areas of a watershed. In these areas,most of the eroded sediment is transported in overland flows; either in shallow or in concentrated flowsituations. These flows are usually associated with nonlinear waves, generally known as 'roll waves' inthe hydraulic engineering literature. Under suitable hydraulic conditions, these waves contain a significantfraction of the total kinetic energy of the flow regime. Hence, the waves act as the primary energy sourcein transporting eroded sediment in shallow flows on steep slopes. Our laborat0ry experiments undercontrolled condition suggest that modulation of the roll waves is effected by the addition of increasingamouflts of sediment in the flow. The optimal condition in the sediment transport rate is reached whenmost of the available wave energy is consumed in carrying the sediment. A related set of experiments ongravitational flows of dry granular material show that the evolving scales of sediment waves are intrinsicto the transport mechanism of the solid phase. | D. PAL S. N. PRASAD (Department of Civil Engineering, University of Mississippi, University, MS 38677, USA.) M. J. M. ROMKENS(USDA ARS National Sedimentation Laboratory, Oxford, MS 38655, USA.) | 2000 | International Journal of Sediment Research2000，15，2： | 3 |
| 2 | Induction of the neural crest state: control of stem cell attributes by gent regulatory, post-transcriptional and epigenetic interactions 显示文摘 | Prasad MS Sauka-Spengler T Labonne C | 2012 | Dev Biol2012，366，1： | 1 |
| 3 | Structural cerebral variations as useful endophenotypes in schizophrenia:do they help construct 'extended endophenotypes'?显示文摘 | Prasad KM Keshavan MS | 2008 | Schizophr Bull2008，34，4： | 1 |
| 4 | Liquid chromatography - tan- dem mass spectrometry quantification of levosulpiride in human plas- ma and its application to bioequivalence study 显示文摘 | Prasad B Lee HW Lim MS | 2010 | J Chromatogr B Analyt Technol Biomed Life Sci2010，878，： | 1 |
| 5 | Comparative analyses of multi-species sequences from targeted genomic regions显示文摘 | Thomas JW Touchman JW Blakesley RW Bouffard GG Beckstrom-Sternberg SM Margulies EH Blanchette M Siepel AC Thomas PJ McDowell JC Maskeri B Hansen NF Schwartz MS Weber RJ Kent WJ Karolchik D Bruen TC Bevan R Cutler DJ Schwartz S Elnitski L Idol JR Prasad AB | | 0，，6950： | 1 |
| 6 | Structural cerebral variations as use- ful endophenotypes in schizophrenia: do they help construct 'ex- tended endophenotypes'?显示文摘 | Prasad KM Keshavan MS | 2008 | Schizophr Bull2008，34，4： | 1 |
| 7 | SEDIMENT YIELD-SURFACE TOPOGRAPHY RELATIONSHIPS FOR SELECTED MISSISSIPPI SOILS显示文摘Microtopography is an important surface characteristic of upland areas that affect erosion processes of detachment, transport, and runoff Yet, little quantitative information is available about the relationship between surface microtopography and sediment yield. A laboraory rainfall simulation study was conducted to determine for four different erosion susceptible soils the changes in surface microtopography and sediment yield during a series of 6 to 8 rainstorms of 0.75 h duration and 60 mm h-1 intensity each. The soils chosen were the Ap-materials of a Grenada sil (Glossic Fragiudalfs), Atwood sil (Typic Paleudalfs), and a Forestdale sicl (Typic Ochraqualfs), as well as the C-material, a Glauconitic sediment, of a Ruston sil (Typic Paleudalfs). Soil beds were prepared in a flume with a seedbed-like surface condition. Before all and after each rainstorm, the surface microtopography was determined using a laser microreliefmeter. Microtopography, expressed in terms of the mean local topographic gradient, and runoff data indicate a very similar pattern among the four soils. The data show an initially rapid increase in the sediment concenttation, which reached quickly a maximum and then gradually decreased to a near constant value at the end of the storm series. Sediment yield followed closely the sediment concentration trend due to a near constant runoff rate. Surface microtopography changed rapidly during the first rainstorm but then decreased more gradual to an approximate constant value for most of the later rainstorms in the sequence. Three distinct phases in the sediment yieldmicrotopography relationship are recognized: (1) a preponding phase, (2) a post ponding-increased sediment yield phase, and (3) a post ponding-decreased sediment yield phase. These phases reflect changes in the relative importance of soil erosion processes of roughness dissipation, rill development,and soil surface matrix stabilization. | M. J. M. ■(USDA-ARS National Sedimentation Laboratory, Oxford, MS 38655)K. Helming (ZALF, Muencheberg, Germany)S. N. Prasad(Dept. of Civil Engineering, University of Mississippi, University, MS 38677 | 2000 | International Journal of Sediment Research2000，15，1： | 1 |
| 8 | A novel application of CT angiography to detect extraeoronary vascular abnormalities in patients with spontaneous coronary artery dissection 显示文摘 | Liang JJ Prasad M Tweet MS | 2014 | J Cardiovasc Comput Tomogr2014，8，3： | 1 |
| 9 | Effects of laparoscopic instrument and finger on force perception:a first step towards laparoscopic force-skills training显示文摘 | Raghu Prasad MS Manivannan M Chandramohan SM | 2015 | Surg Endosc2015，29，7： | 1 |
| 10 | Papillary thyroid carcinoma with an adenoid cystic pattern:report of a case with fine-needle aspiration cytology and immunocytochemistry显示文摘 | Haji BE Ahmed MS Prasad A | 2004 | Diagn Cytopathol2004，30，： | 1 |
| 11 | Isolation and characterization of an extracellular polysaccharide from Pseu-domonas caryophylli CFR1705显示文摘 | Sudhamani SR Tharanathan RN Prasad MS | 2004 | carbohydrate polymers2004，56，4： | 1 |
| 12 | Genetic variability among Group A and B respiratory syncytial virus isolates from a large referral hospital in New Delhi, India显示文摘 | Rajala MS Sullender WM Prasad AK | 2003 | J Clin Microbiol2003，41，： | 1 |
| 13 | A preliminary study 显示文摘 | PRASAD G DHILLON MS KHULLAR M et aL Evaluation of oxidative strees after fractures | 2003 | Acta Orthop Belg2003，69，6： | 1 |
| 14 | A novel application of CT angiography to detect extracoronary vascular abnormalities in patients with spontaneous coronary artery dissection显示文摘 | Liang JJ Prasad M Tweet MS | 2014 | J Cardiovasc Comput Tomogr2014，8，3： | 1 |
| 15 | Identification of cDNA clones expressed selectively during the critical period for visual cortex development by subtractive hybridization 显示文摘 | Prasad SS Cynader MS | 1994 | Brain Res1994，639，1： | 1 |
| 16 | Wave reflection augments central systolic and pulse pressures during facial cooling 显示文摘 | Edwards DG Roy MS Prasad RY | 2008 | Am J Physiol Heart Circ Physiol2008，294，6： | 1 |
| 17 | Cox-Maze Ⅳ results for patients with lone atrial fibrillation versus concomitant mitral disease显示文摘 | Saint LL Bailey MS Prasad S | 2012 | Ann Thorac Surg2012，93，： | 1 |
| 18 | Orthodontics-surgical combination therapy for Class Ⅲ skeletal malocclusion 显示文摘 | Ravi MS Shetty NK Prasad RB | 2012 | Contemp Clin Dent2012，3，1： | 1 |
| 19 | Multicentric giant cell tumour of bone显示文摘 | Dhillon MS Prasad P | 2007 | Acta Orthop Belg2007，73，3： | 1 |
| 20 | Pattern of injuries due to wild animal attack among patients presenting to the emergency department:A retrospective observational study显示文摘Purpose:The human-wildlife conflicts(HWCs)causing nuisances and injuries are becoming a growing public health concern over recent years worldwide.We aimed to study the demographic profile,mode of injury,pattern of injury,and outcome of wild animal attack victims presented to the emergency department.Methods:This retrospective cross-sectional study was conducted in the emergency department of a tertiary-care hospital in Eastern India.Data were retrieved from the medical records from May 2017 to May 2021.Patients of all ages and genders attacked by wild animals and secondary injuries were included in this study.Patients with incomplete data,injuries due to the attack of stray and domestic animals and trauma due to other causes were excluded.Demographic profile,mode of injury,the pattern of injury,injury severity score(ISS),radiological pattern,and outcome were recorded.Statistical analysis with R(version 3.6.1.)was conducted.Results:A total of 411 wild animal attack victims were studied,of which 374(90.9%)were snakebite injuries and 37(9.1%)were wild mammalian(WM)attack injuries.The mean age of WM attack victims was 46 years,and the male-to-female ratio was 4:1.Elephant attack injury(40.5%)was the most common WM attack injury reported.Most WM attacks(43.2%)occurred between 4:00 a.m.to 8:00 a.m.The median ISS was 18.5(13-28),where 54.2%of patients had polytrauma(ISS>15).Elephant attack was associated with a higher ISS,but the difference was not significant compared to other animal types(p=0.2).Blunt trauma was common pattern of injury in the elephant attack injury cases.Lacerations and soft tissue injuries were common patterns in other animal attacks.Among snakebites,neurotoxic was the most common type(55.4%),and lower extremity was the most common site involved.Conclusion:The young male population is the major victim of HWCs;and elephant is the most common animal involved.There is a need to design scientifically sound preventive strategies for HWCs and to strengthen the preparedness in health establishments to manage victims effectively. | Pradeep Kumar Singh S Manwar Ali Rakesh Vadakkethil Radhakrishnan Chitta Ranjan Mohanty Manas Ranjan Sahu Bishnu Prasad Patro Ijas MS Susant Kumar Panda | 2021 | Chinese Journal of Traumatology2021，24，6： | 0 |
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