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The aim of this study was to compare effect of combinations of intravenous isotonic sodium bicarbonate (NaHCO3), acetate Ringer, lactate Ringer and small-volume hypertonic sodium chloride (NaCI) solutions along with oral electrolyte solutions (OES) on the treatment of neonatal calf diarrhea with moderate dehydration and metabolic acidosis. Thirty-two calves with diarrhea were used in the study. Calves were randomly assigned to receive acetate Ringer solution (n=8), lactate Ringer solution (n=8), isotonic NaHCO3 (n=8) and 7.2% saline solutions (n=8), and two liters of OES were administrated to all calves orally at the end of intravenous administration. Blood samples for blood gas and biochemical analyses were collected at 0 hours and at 0.5, 1, 2, 4, 6 and 24 hours intervals. All the calves had mild to moderate metabolic acidosis on admission. Increased plasma volume and sodium concentration, but decreased serum total protein were observed within 0.5 hours following administration of hypertonic 7.2% NaCI + OES, compared to other 3 groups. In conclusion, administration of intravenous hypertonic 7.2% NaCI solution in small volume along with OES provided fast and effective improvement of dehydration and acid-base abnormalities within short time in treatment of calf diarrhea with moderate dehydration and metabolic acidosis.

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Authors and Affiliations

U. Aydogdu

R. Yildiz

H. Guzelbektes

A. Naseri

E. Akyuz

I. Sen

Maturation of bovine oocytes under low culture temperature decreased glutathione peroxidase activity of both oocytes and blastocysts

U. Şen

Polish Journal of Veterinary Sciences | 2021 | vol. 24 | No 1 | 93-99 | DOI: 10.24425/pjvs.2021.136797

Keywords bovine temperature antioxidant activity oxidative stress oocytes blastocysts

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Abstract

It is known that the basic variable in the cellular environment is temperature and low temperature decreases cellular metabolism rate. Also, low cellular metabolic activity reduces oxidative stress, resulting in low ROS production. The aim of this study was therefore to investigate the effect of 36.5°C (low) and 38.5°C (conventional) incubation temperatures during IVM on glutathione peroxidase activity of oocytes and blastocysts following fertilization. Bovine oocytes were matured in medium-199 for 22 hours at either 36.5°C or 38.5°C and they were subjected to in vitro fertilization (IVF). Putative zygotes were then transferred randomly into SOFaa embryo culture media with or without antioxidant (a mixture of GSH and SOD) until development to the blastocyst stage. Glutathione peroxidase enzyme (GSH-Px) activity was lower (p<0.05) in oocytes matured at low temperature than those of conventional temperature. Similarly, GSH-Px activity was lower (p<0.05) in blastocysts, which were obtained from oocytes matured at low temperature and cultured in antioxidants-supplemented embryo media. The GSH-Px activity of blastocysts, obtained from oocytes matured in low temperature, cultured in antioxidants-free embryo media was similar to blastocysts obtained from oocytes matured in conventional temperature, cultured in antioxidants-supplemented embryo media. The results of the present study show that decreasing the in vitro maturation temperature decreases antioxidant enzyme activity in both oocyte and blastocyst. Additionally, maturation of bovine oocytes at 36.5°C incubation temperature may provide an optimal thermal condition for the enzymatic antioxidant system of both oocytes and blastocyst.

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Authors and Affiliations

U. Şen

1

Ondokuz Mayis University, Faculty of Agriculture, Department of Agricultural Biotechnology, 55139, Samsun, Turkey

Real-time assessment of the superovulatory effect of FSH and eCG with laparoscopy at different seasons in Akkaraman ewes

U. Şen

Polish Journal of Veterinary Sciences | 2020 | vol. 23 | No 2 | 291-299 | DOI: 10.24425/pjvs.2020.133644

Keywords superovulation season laparoscopy plasma hormones eCG FSH

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Abstract

Conventional methods for determining the reproductive performance of sheep bred either after estrus synchronization during the breeding season or after induction of estrus/ovulation during the non-breeding season take a long time and may give misleading results due to the effect of environmental factors. Laparoscopic observations allow real-time monitoring of ovarian activity around estrus or ovulation. This study was aimed at assessing the superovulatory effects of follicle-stimulating hormone (FSH) and equine chorionic gonadotropin (eCG) treatments by laparoscopy during breeding (September-November, n=12) and non-breeding (April-June, n=12) seasons in Akkaraman sheep. In both seasons, after CIDR withdrawal, the ewes were injected either with 600 IU eCG or 300 μl (20 mg/ml) FSH twice at 12 hour intervals. Plasma P4, E2 and LH concentrations were determined at the time of intra-vaginal CIDR insertion (day 0) and then at its withdrawal (day 12), followed by 3 and 6 days of eCG or FSH injections. After 3 (first observation) and 6 (second observation) days of hormone injections, laparoscopy was performed to record ovarian activity in both seasons. The eCG increased (p<0.05) the numbers of large follicles (first observation) and CL (first and second observations) in the breeding season compared to FSH treatment. CL, small-moderate and large follicle numbers of eCG treated ewes were higher (p<0.05) than those of FSH at both observations in the non-breeding season. In the breeding season, eCG treated ewes had higher (p<0.05) plasma P4 (3 and 6 days after hormones injections) and E2 (3 days after hormones injections) concentrations than those of FSH. In conclusion, the results of the present study indicate that treatment with eCG during the non-breeding season can support ovarian activity, and thus increase ovulation rate and plasma hormone concentrations around induced estrus/ovulation in Akkaraman ewes.

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Authors and Affiliations

U. Şen

In silico prediction and characterization of three-dimensional structure of Actin-1 of Arabidopsis thaliana

M. Sahu B. Dehury R. Sarmah S. Sahoo J. Sahu K. Sarma P. Sen M.K. Modi M. Barooah

BioTechnologia | 2013 | No 4

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Authors and Affiliations

M. Sahu

B. Dehury

R. Sarmah

S. Sahoo

J. Sahu

K. Sarma

P. Sen

M.K. Modi

M. Barooah

A new 4-D dynamical system exhibiting chaos with a line of rest points, its synchronization and circuit model

Sundarapandian Vaidyanathan Aceng Sambas Sen Zhang

Archives of Control Sciences | 2019 | vol. 29 | No 3 | 485-506 | DOI: 10.24425/acs.2019.130202

Keywords chaos chaotic systems circuit design synchronization

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Abstract

A new 4-D dynamical system exhibiting chaos is introduced in this work. The proposed nonlinear plant with chaos has an unstable rest point and a line of rest points. Thus, the new nonlinear plant exhibits hidden attractors. A detailed dynamic analysis of the new nonlinear plant using bifurcation diagrams is described. Synchronization result of the new nonlinear plant with itself is achieved using Integral Sliding Mode Control (ISMC). Finally, a circuit model using MultiSim of the new 4-D nonlinear plant with chaos is carried out for practical use.

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Authors and Affiliations

Sundarapandian Vaidyanathan

Aceng Sambas

Sen Zhang

Protective role of silibinin over nickel sulfate-induced reproductive toxicity in male rats

F. Temamogullari A. Atessahin C. Cebi Sen N. Yumusak M.S. Dogru

Polish Journal of Veterinary Sciences | 2021 | vol. 24 | No 1 | 29-34 | DOI: 10.24425/pjvs.2020.135817

Keywords nickel silibinin male rats reproductive toxicity

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Abstract

Nickel damages the male reproductive system. We investigated the beneficial effects of silibinin which has metal-chelating and antioxidant properties over nickel toxicity. Both antioxidative effects in testes and overall effects related to sperm motility, membrane and acrosome integrity of orally administered Silibinin were evaluated against the harmful effects of 30 day of intraperitoneal nickel sulfate (5 mg/kg/day) administration in rats. Male rats were randomized into control (Group1; n=6) and three experimental groups (n=6, each): Group2 Nickel sulfate (5 mg/kg/day), Group3 Silibinin (150 mg/kg/day), and Group 4 Nickel sulfate (5 mg/kg/day) + Silibinin (150 mg/kg/day). We found higher sperm motility, viable sperm and total sperm count in Groups 3 and 4 than the Group 2 treatment groups and the percentage of abnormal spermatozoa was similar in both groups (Groups 2 and 4). Increased apoptosis, activation of caspase3, 8, 9 and TUNEL were detected in Group 2. However, activation of caspase3, 8, 9 and TUNEL was reduced in Group 4. The protective effects of silibinin were demonstrated on histopathologic findings and some sperm parameters (sperm motility percentage, viable spermatozoa, sperm count, and abnormal spermatozoa percentage) in rats exposed to nickel.

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Authors and Affiliations

F. Temamogullari

1

A. Atessahin

2

C. Cebi Sen

3

N. Yumusak

4

M.S. Dogru

5

Department of Pharmacology and Toxicology, University of Harran, Faculty of Veterinary Medicine, 63200 Şanlıurfa, Turkey
Department of Pharmacology and Toxicology, University of Fırat, Faculty of Veterinary Medicine, 23119 Elazığ, Turkey
Department of Reproduction and Artificial Insemination, University of Harran, Faculty of Veterinary Medicine, 63200 Şanlıurfa, Turkey
Department of Pathology, University of Harran, Faculty of Veterinary Medicine, 63200 Şanlıurfa, Turkey
Department of Pharmacology and Toxicology, University of Aksaray, Faculty of Veterinary Medicine, 6800 Aksaray, Turkey

Motion planning of planar and redundant underwater serial link manipulator based on minimization of energy consumption

Virendra Kumar Soumen Sen Shibendu Shekhar Roy

Archive of Mechanical Engineering | 2021 | vol. 68 | No 4 | 415-434 | DOI: 10.24425/ame.2021.139312

Keywords underwater manipulator drag added inertia motion planning recursive Lagrangian formulation redundant manipulator obstacle avoidance singularity avoidance

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Abstract

The article describes motion planning of an underwater redundant manipulator with revolute joints moving in a plane under gravity and in the presence of obstacles. The proposed motion planning algorithm is based on minimization of the total energy in overcoming the hydrodynamic as well as dynamic forces acting on the manipulator while moving underwater and at the same time, avoiding both singularities and obstacle. The obstacle is considered as a point object. A recursive Lagrangian dynamics algorithm is formulated for the planar geometry to evaluate joint torques during the motion of serial link redundant manipulator fully submerged underwater. In turn the energy consumed in following a task trajectory is computed. The presence of redundancy in joint space of the manipulator facilitates selecting the optimal sequence of configurations as well as the required joint motion rates with minimum energy consumed among all possible configurations and rates. The effectiveness of the proposed motion planning algorithm is shown by applying it on a 3 degrees-of-freedom planar redundant manipulator fully submerged underwater and avoiding a point obstacle. The results establish that energy spent against overcoming loading resulted from hydrodynamic interactions majorly decides the optimal trajectory to follow in accomplishing an underwater task.

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Bibliography

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Authors and Affiliations

Virendra Kumar

1

e-mail:

ORCID:

Soumen Sen

1

Shibendu Shekhar Roy

2

Robotics and Automation Division, CSIR-Central Mechanical Engineering Research Institute, Durgapur, India
Mechanical Engineering Department, National Institute of Technology, Durgapur, India

Investigation and calibration of thermal and salinity layering in surface water resources using Ce-Qual-W2 model

Tzu-Chia Chen Shu-Yan Yu Chang-Ming Wang Sen Xie Hanif Barazandeh

Journal of Water and Land Development | 2021 | No 51 | 117-123 | DOI: 10.24425/jwld.2021.139021

Keywords Ce-Qual-W2 model salinity surface water thermal layering water quality modelling water resources

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Abstract

In the discussion of water quality control, the first and most effective parameter that affects other variables and water quality parameters is the temperature situation and water temperature parameters that control many ecological and chemical processes in reservoirs. Additionally, one of the most important quality parameters studied in the quality of water resources of dams and reservoirs is the study of water quality in terms of salinity. The salinity of the reservoirs is primarily due to the rivers leading into them. The control of error in the reservoirs is always considered because the outlet water of the reservoirs, depending on the type of consumption, should always be standard in terms of salinity. Therefore, in this study, using the available statistics, the Ce-Qual-W2 two-dimensional model was used to simulate the heat and salinity layering of the Latyan Dam reservoir. The results showed that with warming and shifting from spring to late summer, the slope of temperature changes at depth increases and thermal layering intensifies, and a severe temperature difference occurs at depth. The results of sensitivity analysis also showed that by decreasing the wind shear coefficient (WSC), the reservoir water temperature increases, so that by increasing or decreasing the value of this coefficient by 0.4, the average water temperature by 0.56°C changes inversely, and the results also show that by increasing or decreasing the value of the shade coefficient by 0.85, the average water temperature changes by about 7.62°C, directly.

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Authors and Affiliations

Tzu-Chia Chen

1

e-mail:

ORCID:

Shu-Yan Yu

1

Chang-Ming Wang

1

Sen Xie

1

Hanif Barazandeh

2

International College, Krirk University, Bangkok, 3 Ram Inthra Rd, Khwaeng Anusawari, Khet Bang Khen, Krung Thep Maha Nakhon 10220, Thailand
Ferdowsi University of Mashhad, Iran

A study on the Surface Roughness of Galvannealed Low Carbon Al-Killed and Ti-Nb Stabilized Interstitial Free Steels

Candan Sen Elkoca Bulent Ekmekci Oktay Elkoca

Archives of Metallurgy and Materials | 2021 | vol. 66 | No 3 | 847-851 | DOI: 10.24425/amm.2021.136389

Keywords Galvannealing galvannealed steel hot-dip galvanizing Fe-Zn phases surface roughness

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Abstract

In this study, the surface roughness of galvannealed low carbon Al-killed and Ti-Nb stabilized interstitial free steels was investigated using the industrial galvannealing process parameters. The iron content of the coatings was also analysed to establish a relationship with the surface roughness and coating composition. The surface roughness displayed an exponential behaviour with increasing of annealing time at each annealing temperature in both steel coatings, which was in an increasing order in the galvannealed low carbon Al-killed steel coating, whereas it was a reverse order in the galvannealed Ti-Nb stabilized interstitial free steel coating. The craters were observed on the galvannealed coatings resulting in high surface roughness. Increasing the iron content of the coatings leads to a reduction in the surface roughness with δ1k phase.

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Authors and Affiliations

Candan Sen Elkoca

1

e-mail:

ORCID:

Bulent Ekmekci

2

e-mail:

ORCID:

Oktay Elkoca

3

e-mail:

ORCID:

Bulent Ecevit University, Alapli Vocational High School, Zonguldak 67850, Turkey
Bulent Ecevit University, Department of Mechanical Engineering, Zonguldak 67100, Turkey
Duzce University, Department of Mechanical Engineering, Duzce 81620, Turkey

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Advanced studies on coal injection into a cavitation cell for the purpose of comminution / Badania procesu wtłaczania węgla do komór kawitacyjnych w celu rozdrabniania

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HIGH CONCENTRATION OF ARSENIC REMOVAL FROM ACID LEACHING SOLUTION OF ZINC OXIDE DUST BY WATER-QUENCHED SLAG

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Evaluation of intra-testicular injections of calcium chloride and 4-vinylcyclohexene 1,2 monoepoxide for chemical sterilization in guinea pigs

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Effect of combinations of intravenous small-volume hypertonic sodium chloride, acetate Ringer, sodium bicarbonate, and lactate Ringer solutions along with oral fluid on the treatment of calf diarrhea

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Maturation of bovine oocytes under low culture temperature decreased glutathione peroxidase activity of both oocytes and blastocysts

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Real-time assessment of the superovulatory effect of FSH and eCG with laparoscopy at different seasons in Akkaraman ewes

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In silico prediction and characterization of three-dimensional structure of Actin-1 of Arabidopsis thaliana

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A new 4-D dynamical system exhibiting chaos with a line of rest points, its synchronization and circuit model

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Protective role of silibinin over nickel sulfate-induced reproductive toxicity in male rats

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Motion planning of planar and redundant underwater serial link manipulator based on minimization of energy consumption

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Investigation and calibration of thermal and salinity layering in surface water resources using Ce-Qual-W2 model

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A study on the Surface Roughness of Galvannealed Low Carbon Al-Killed and Ti-Nb Stabilized Interstitial Free Steels

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