Absent portal vein bifurcation: a rare variant and its clinical significance

Ranjan Kumar Sahoo,Sitansu Kumar Panda,Pravakar Bahinipati 대한해부학회 2014 Anatomy & Cell Biology Vol.47 No.3

Portal vein branching anomaly occurs due to aberration of normal anastomotic patterns and involution of vitelline veins during development of portal vein. Anatomical knowledge of portal vein and its branching pattern is important for hepatobiliary surgeon and gastrointestinal intervention radiologist. We are reporting a case of absence of portal vein bifurcation showing single main intrahepatic portal vein with gradual decreasing caliber distally, in a young female patient on contrast-enhanced computed tomography study of abdomen. Few cases of absence of portal bifurcation have been reported in literature so far.

PCR-SSCP of Serum Lysozyme Gene (Exon-III) in Riverine Buffalo and Its Association with Lysozyme Activity and Somatic Cell Count

Sahoo, Nihar Ranjan,Kumar, Pushpendra,Bhushan, Bharat,Bhattacharya, T.K.,Sharma, Arjava,Dayal, Sanker,Pankaj, Prabhat Kumar,Sahoo, Monalisa Asian Australasian Association of Animal Productio 2010 Animal Bioscience Vol.23 No.8

Serum lysozyme gene is one of the important genes influencing the immune system as its product can cause lysis of bacterial cell wall by cleaving the peptidoglycan layer. The present investigation on the serum lysozyme gene of Indian riverine buffalo was undertaken with the objectives to identify and characterize single nucleotide polymorphic patterns by PCR-SSCP method as well as to study the effect of different genotypes on serum lysozyme activity and somatic cell count. A total of 280 animals comprising four different famous bubaline breeds (Murrah, Mehsana, Surti and Bhadawari), spread over six different farms across the country were used for this study. A 276 bp (partial intron 2, complete exon 3 and partial intron 3) fragment of lysozyme gene was screened for polymorphism using the SSCP technique. Four genotypes namely AA, AB, BC and AC were observed, out of which BC genotype was found to be the most frequent. Among these three alleles, C allele (0.38) was most prevalent in these populations. Various SSCP allelic variants were cloned for sequencing and sequences were submitted to NCBI Genbank. From the alignment of the nucleotide sequences of various allelic variants, it was found that there were differences in 12 positions among the alleles, out of which maximum variation (at 8 places) was found in the intronic region. The allele A was closer to allele-C than allele-B. Allele B was phylogenetically equidistant from both of the other alleles. Mean lysozyme activity determined in serum samples of different animals of Murrah buffalo was $27.35{\pm}2.42\;{\mu}g$ per ml of serum, whereas the mean somatic cell count was $1.25{\pm}0.13{\times}10^5$ cells per ml of milk. The SSCP pattern-wise effects of various genotypes on lysozyme activity and SCC were analyzed. Although the mean values were apparently different in various genotypes, these differences were statistically non-significant. It can be concluded that the riverine buffaloes are sufficiently polymorphic with respect to serum lysozyme gene. The absence of AA genotype in Bhadawari breed of buffalo can be considered as a marker for breed characterization. The difference of four nucleotides in exon-3 indicates high selection pressure on the gene.

China’s Growth Story : The Role of Physical and Social Infrastructure

PRAVAKAR SAHOO;RANJAN KUMAR DASH;GEETHANJALI NATARAJ 경제연구소 2012 Journal of Economic Development Vol.37 No.1

The paper investigates the role of infrastructure in promoting economic growth in China using ARDL and GMM techniques for the period 1975 to 2007. In this context, an attempt is made to understand growth accounting equations to investigate the impact of infrastructure development on output. Overall, the results reveal that infrastructure stock, labour force, public and private investment play an important role in economic growth in China. More importantly, the study finds that Infrastructure development in China has significant positive contribution to growth than both private and public investment. Further, there is unidirectional causality from infrastructure development to output growth justifying China’s high spending on infrastructure development since the early nineties. The experience from China suggests that it is necessary to design an economic policy that improves the physical infrastructure as well as human capital formation for sustainable economic growth in developing countries.

Numerical analysis of the effect of tool wear on surface integrity during hard turning

Rupak Kumar Nayak,Gaurav Bartarya,Manas Ranjan Sahoo 대한기계학회 2021 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.35 No.3

The white layer formed during hard turning deteriorates surface integrity, thereby severely affecting the fatigue life of machined parts. A 2D FEM-based simulation model has been developed to simulate cutting temperature profiles in workpieces for the prediction of white layer thickness developed below the machined surface. Machining was simulated for fresh and worn tools with predefined flank wear. The temperature profile generated in the workpiece was analyzed for the critical temperature for phase transformation leading to white layer formation. The critical temperature was found to be deeper in the subsurface with an increase in cutting speed and wear, indicating a thicker subsurface white layer. Experimental observations using fresh tools were found very close to the simulation results. The model was extended to simulate temperature profile and predict the white layer for machining with tools having predefined tool flank wear.

CHINA’S GROWTH STORY: THE ROLE OF PHYSICAL AND SOCIAL INFRASTRUCTURE

PRAVAKAR SAHOO,RANJAN KUMAR DASH,GEETHANJALI NATARAJ 중앙대학교 경제연구소 2012 Journal of Economic Development Vol.37 No.1

The paper investigates the role of infrastructure in promoting economic growth in China using ARDL and GMM techniques for the period 1975 to 2007. In this context, an attempt is made to understand growth accounting equations to investigate the impact of infrastructure development on output. Overall, the results reveal that infrastructure stock, labour force, public and private investment play an important role in economic growth in China. More importantly, the study finds that Infrastructure development in China has significant positive contribution to growth than both private and public investment. Further, there is unidirectional causality from infrastructure development to output growth justifying China’s high spending on infrastructure development since the early nineties. The experience from China suggests that it is necessary to design an economic policy that improves the physical infrastructure as well as human capital formation for sustainable economic growth in developing countries.

Behavior of Unstiffened Steel Plate Shear Wall with Simple Beam-to-column Connections and Flexible Boundary Elements

Dipti Ranjan Sahoo,Balsher Singh Sidhu,Arunesh Kumar 한국강구조학회 2015 International Journal of Steel Structures Vol.15 No.1

This study investigates the effect of type of beam-to-column connections on the overall performance of steel plate shear wall(SPSW) systems under lateral loading condition. An analytical study using finite-element analysis has been conducted on a twostorySPSW system with rigid and pinned beam-to-column connections having constant panel aspect ratio and plate slendernessratio. All boundary elements are designed as per the current code provisions. The influence of the type of connections betweenthe web plates and the boundary elements on the overall performance of SPSW systems is also studied. In addition, the behaviorof SPSW system with flexible boundary members along with pinned beam-to-column connections is also investigated underlateral loading condition. An experimental study has been carried out on a two-story SPSW specimen with flexible boundaryelements to investigate its overall performance under the slow-cyclic loading. Based on the analytical and experimental results,various design issues of SPSW systems are discussed.

Evaluation of intrahepatic and extrahepatic biliary tree anatomy and its variation by magnetic resonance cholangiopancreatography in Odisha population: a retrospective study

Bikramaditya Swain,Ranjan Kumar Sahoo,Kamal Kumar Sen,Manoj Kumar G,Shylendra Singh Parihar,Roopak Dubey 대한해부학회 2020 Anatomy & Cell Biology Vol.53 No.1

Intrahepatic and extrahepatic anatomical knowledge is essential for pre procedural planning of liver transplantation, liver resection, complex biliary reconstruction and radiological biliary tree intervention. Indian data of biliary anatomy and its variation is scant in literature. The aim of our study is to find out the prevalence of common and uncommon pattern of biliary tree anatomy in magnetic resonance cholangiopancreatography (MRCP) in our population. A total of 1,038 cases of MRCP of population of Odisha were obtained from Picture Archiving and Communication System of the department and were reviewed by two senior radiologists for anatomical pattern and variations. The typical and most common pattern of right hepatic duct (RHD) branching was seen in 72.8% cases. The most common variant of RHD was trifurcation pattern of insertion of right anterior sectoral duct (RASD), right posterior sectoral duct and left hepatic duct (LHD) forming common hepatic duct (CHD) in 11.3% of cases. The common trunk of segment (SEG) II and III ducts joining the SEG IV duct was the most common LHD branching pattern in 90.3% of cases. The most common pattern of cystic duct was posterior insertion to middle third of CHD (42.8%). MRCP is the non-invasive imaging modality for demonstration of biliary duct morphology to prevent iatrogenic injury during hepatobiliary intervention and surgery.

Influence of maternal and socioeconomic factors on breast milk fatty acid composition in urban, low‐income families

Nayak, Uma,Kanungo, Suman,Zhang, Dadong,Ross Colgate, E.,Carmolli, Marya P.,Dey, Ayan,Alam, Masud,Manna, Byomkesh,Nandy, Ranjan Kumar,Kim, Deok Ryun,Paul, Dilip Kumar,Choudhury, Saugato,Sahoo, Sushama John Wiley and Sons Inc. 2017 Maternal & child nutrition Vol.13 No.4

<P><B>Abstract</B></P><P>The lipid composition of breast milk may have a significant impact on early infant growth and cognitive development. Comprehensive breast milk data is lacking from low‐income populations in the Indian subcontinent impeding assessment of deficiencies and limiting development of maternal nutritional interventions. A single breast milk specimen was collected within 6 weeks postpartum from two low‐income maternal cohorts of exclusively breastfed infants, from Dhaka, Bangladesh (<I>n</I> = 683) and Kolkata, India (<I>n</I> = 372) and assayed for percentage composition of 26 fatty acids. Mature milk (>15 days) in Dhaka (<I>n</I> = 99) compared to Kolkata (<I>n</I> = 372) was higher in total saturated fatty acid (SFA; mean 48% vs. 44%) and disproportionately lower in ω3‐polyunsaturated fatty acid (PUFA), hence the ω6‐ and ω3‐PUFA ratio in Dhaka were almost double the value in Kolkata. In both sites, after adjusting for days of lactation, increased maternal education was associated with decreased SFA and PUFA, and increasing birth order or total pregnancies was associated with decreasing ω6‐PUFA or ω3‐PUFA by a factor of 0.95 for each birth and pregnancy. In Dhaka, household prosperity was associated with decreased SFA and PUFA and increased ω6‐ and ω3‐PUFA. Maternal height was associated with increased SFA and PUFA in Kolkata (1% increase per 1 cm), but body mass index showed no independent association with either ratio in either cohort. In summary, the socioeconomic factors of maternal education and household prosperity were associated with breast milk composition, although prosperity may only be important in higher cost of living communities. Associated maternal biological factors were height and infant birth order, but not adiposity. Further study is needed to elucidate the underlying mechanisms of these effects.</P>