scholarly journals REGENERATION OF MICRO CUTTINS WITH DIFFERENT SIZE AND ORIENTATION IN TEST TUBE

Russian vine ◽  
2021 ◽  
Vol 18 ◽  
pp. 23-27
Author(s):  
V.G. Puzirnova ◽  
◽  
N.P. Doroshenko ◽  
Keyword(s):  
Survival Rate ◽  
Test Tube ◽  
Optimal Size ◽  
Grape Variety ◽  
Growth Processes ◽  
Factors Influencing

The article is devoted to the optimization of one of the factors influencing the success of micropropagation – the choice of the optimal size of the explant and the method of its expo-sure in a test tube. Many studies have con-firmed that the size of the micro cuttings and its orientation during planting can affect the speed of growth processes and the survival rate of plants. The experiment was set on the Fio-letoviy Ranniy grape variety. The best size of the micro cuttings and the method of its orien-tation in the test tube are established.

scholarly journals Choice of explant, its size and method of its placement in a test tube to increase the productivity of clonal micropropagation of Fioletoviy ranniy variety

2021 ◽  
Vol 937 (2) ◽  
pp. 022114
Author(s):  
V Puzirnova ◽  
N Doroshenko
Keyword(s):  
Survival Rate ◽  
Test Tube ◽  
Growth Processes ◽  
Micro Cutting ◽  
Grapevine Variety ◽  
Clonal Micropropagation ◽  
Factors Influencing

Abstract The paper is devoted to the optimization of one of the factors influencing the success of micropropagation – the choice of the optimal part of vine to take explant, size of the explant and the method of its exposure in a test tube. The studies have confirmed that the place, where micro-cutting was taken, its size and its orientation during planting can affect the speed of growth processes and the survival rate of plants. The experiment was put on the Purple Early grapevine variety. The part of vine for taking micro-cutting, best size of explant and the method of its orientation in the test tube are established.

Incidence of Uterine Torsion and Related Factors in Buffaloes of Amul Milk Shed Area

2019 ◽  
Vol 15 (01) ◽  
pp. 17-20
Author(s):  
Chintan S Pateliya1 ◽  
J A Patel ◽  
A J Dhami ◽  
S B Patel ◽  
H L Makwana
Keyword(s):  
Retrospective Study ◽  
Survival Rate ◽  
Caesarean Section ◽  
Post Treatment ◽  
Full Term ◽  
Related Factors ◽  
Factors Influencing ◽  
Uterine Torsion

A study was carried out to find out the retrospective incidence of uterine torsion in buffaloes among obstetrical cases in Amul milk shed area and factors influencing it. Data on 1,13,772 obstetrical cases attended from January 2017 to June 2018 by Amul Veterinarians were collected. Moreover, 50 buffaloes suffering from uterine torsion were taken up during July-December, 2018 to know the side, site, degree of uterine torsion, parity as well as sex and viability of the calf and the dam after detorsion/Caesarean section in the same area. In the retrospective study, a total of 2000 cases of uterine torsion were recorded among total 1,13,772 bovine obstetrical cases, which encompassed 1.76%. Of the 2000 cases, 92.20 (1844) percent torsions were found in buffaloes only. Among 57,111 obstetrical cases attended in buffaloes, the incidence of uterine torsion was 3.23%. Moreover, the region/center-wise incidence of torsion cases varied from 1.30–19.36%. The highest incidence of uterine torsion was found in Anand region (19.36 %) followed by Kathlal (11.23 %) and Mahemdabad (10.14 %) regions, while the lowest incidence was in Virpur (2.06%), Petlad (1.46%) and Piplata (1.30%). It was concluded that buffaloes mostly experience right side (100%), post-cervical (82%) uterine torsion of 270–360° (66%), at full term of gestation (70%)with lower survivability of the calves (30%), however, the survival rate of the dams post-treatment was 90%.

Factors Possibly Influencing the Prognosis of Oligodendroglioma

Neurosurgery ◽  
1988 ◽  
Vol 22 (5) ◽  
pp. 886-891 ◽  
Author(s):  
Zhen Min Sun ◽  
Shigeru Genka ◽  
Nobuyuki Shitara ◽  
Atsuo Akanuma ◽  
Kintomo Takakura
Keyword(s):  
Radiation Therapy ◽  
Survival Rate ◽  
Extent Of Resection ◽  
Blood Groups ◽  
Survival Period ◽  
Postoperative Survival ◽  
Tumor Characteristics ◽  
Abo Blood Groups ◽  
Factors Influencing ◽  
The University

Abstract Fifty-seven cases of oligodendroglioma (including eight cases of malignant oligodendroglioma) treated at the University of Tokyo Hospital between 1961 and 1985 were analyzed for factors influencing the survival rate. Factors related to a poor outcome were findings of malignancy and symptoms of dementia. Survival rate and postoperative survival period were not influenced significantly by radiation therapy, extent of resection, tumor characteristics, or ABO blood groups.

A review of the factors influencing the prognosis of medulloblastoma

1987 ◽  
Vol 66 (1) ◽  
pp. 80-87 ◽  
Author(s):  
Anthony J. Caputy ◽  
David C. McCullough ◽  
Herbert J. Manz ◽  
Kathleen Patterson ◽  
Mary Kathryn Hammock
Keyword(s):  
Cell Differentiation ◽  
Survival Rate ◽  
Histological Finding ◽  
Tumor Stage ◽  
Multivariate Approach ◽  
Content Type ◽  
Factors Influencing ◽  
Significant Difference ◽  
Extent Of Surgical Resection ◽  
Fine Print

✓ The clinical, therapeutic, and histological features of 54 patients with medulloblastoma were analyzed retrospectively by a multivariate approach with regard to prognosis. The overall 5-year survival rate was 60%, with 48% of patients free of recurrence at 5 years. Cell differentiation, when present, was associated with a significantly longer recurrence-free period. Seventy-two percent of patients with the histological finding of cell differentiation were recurrence-free at 5 years. A marginally significant increase in the 5-year survival rate was also seen in association with differentiation. Only 34% of the patients whose tumor exhibited necrosis were alive at 5 years. There was no statistically significant difference in 5-year survival for children under 3 years of age or for the group of children aged 5 years or under. However, a significantly larger fraction (72%) of the group aged 5 years or under had a recurrence-free period of 5 years or more. Other factors including sex, extent of surgical resection, Chang tumor stage, posterior fossa radiation dose, and adjuvant chemotherapy did not influence prognosis.

Factors influencing development of free-living generations of Strongyloides stercoralis

Parasitology ◽  
1988 ◽  
Vol 97 (1) ◽  
pp. 129-138 ◽  
Author(s):  
K. Shiwaku ◽  
Y. Chigusa ◽  
T. Kadosaka ◽  
K. Kaneko
Keyword(s):  
High Temperature ◽  
Incubation Temperature ◽  
Strongyloides Stercoralis ◽  
Test Tube ◽  
Paper Test ◽  
Free Living ◽  
Factors Influencing ◽  
Prednisolone Treatment ◽  
Duration Of Infection ◽  
Incubation Temperatures

SUMMARYThe effects of duration of infection and of temperature and nourishment in cultures on development of free-living generations of Strongyloides stercoralis were studied quantitatively. Rhabditiform larvae, 228–353 μm long, were collected from infected dogs with or without prednisolone treatment using the Baermann apparatus. Cultures were carried out by the filter paper test-tube method under the following conditions: incubation temperature 15–40°C and faecal dilution 1:0–1:16. Rhabditiform larvae developed predominantly to free-living females at incubation temperatures of 15–30°C and low faecal dilutions, but filariform larvae appeared mainly under extreme conditions such as high temperature. Recovery rates of filariform larvae were inversely related to those of females. It was remarkable that high temperature, but not low faecal dilution, affected development of filariform larvae. Although the appearance of free-living males was constant in various environmental conditions, the present study indicated an increase in free-living males with the duration of infection. Thus, it seems that free-living males are already fixed as male in the egg stage, and potential female rhabditiform larvae differentiate into free-living females or filariform larvae depending on environmental factors. There is no marked difference in the development of rhabditiform larvae into filariform larvae in either the immunosuppressed dog or the intact dog.

scholarly journals THE DEPENDENCE OF GROWTH PROCESSES OF THE SCOTS PINE IN THE INITIAL PERIODS OF ONTOGENESIS ON THE ACTION OF IRON NANOPARTICLES

2020 ◽  
Author(s):  
Т.В. БУРДУЧКИНА ◽  
Г.Н. ФАДЬКИН ◽  
С.Д. ПОЛИЩУК
Keyword(s):  
Survival Rate ◽  
Scots Pine ◽  
Iron Nanoparticles ◽  
Aqueous Suspension ◽  
Nitrogen And Phosphorus ◽  
Growth Processes ◽  
Average Growth ◽  
Trunk Diameter ◽  
Pine Seedlings ◽  
Phosphorus And Potassium

В статье приведен анализ влияния нанопорошка железа на приживаемость и сохранность растений, а также на ростовые процессы сосны обыкновенной в начальные периоды онтогенеза. Эффективность препарата оценивали по степени приживаемости и сохранности, а также по текущему и среднему приросту в высоту и диаметре ствола в зоне корневой шейки и химическому составу однолетней хвои. Исследования проводились на дерново-подзолистой почве (ТЛУ А2) в трех лесничествах Рязанской области. В качестве контрольного варианта использовалась общепринятая технология создания лесных культур сосны обыкновенной. Исследуемый вариант предполагал замачивание корневой системы растений сеянцев сосны обыкновенной в водной суспензии нанопорошка железа. Было установлено, что наилучший эффект от применения нанопорошка железа можно ожидать в экстремальные по погодным условиям годы. Так в 2010 году увеличение приживаемости составило 8 %, в 2013 году – 28 %, а в 2016 году 3 %, увеличение текущего прироста в высоту при использовании нанопорошка железа составило 0,41 см в опыте 1 и 1,63 см в опыте 3. В опыте 2 увеличение среднего прироста в высоту было наибольшим и составило 15,35 см. Текущий и средний приросты в диаметре ствола в зоне корневой шейки во всех трех опытах не имели существенных различий. Содержание азота, фосфора и калия в однолетней хвое без применения нанопорошка железа соответствовало древесной породе и ее возрасту. Использование нанопорошка железа во всех трех опытах увеличило содержание азота и фосфора в хвое и не изменило содержания калия. The article presents an analysis of the effect of iron nanoparticles on the survival rate and safety of plants, as well as on the growth processes of the Scots pine in the initial periods of ontogenesis. The effectiveness of the preparation was evaluated by the degree of survival and safety, as well as by the current and average growth in height and trunk diameter in the zone of the root neck and the chemical composition of the annual needle. The studies were conducted on sod-podzolic soil (TLU A2) in three forestries of Ryazan region. As a control option, the generally accepted technology for creating common pine forest plantations was used. The investigated option suggested the soaking of the root system of the Scots pine seedlings in an aqueous suspension of iron nanoparticles. It was found that the best effect of the use of iron nanoparticles can be expected in extreme weather years. So in 2010, the increase in survival rate was 8%, in 2013 it was 28%, and in 2016 it amounted to 3%. The increase in current growth in height using iron nanoparticles was 0.41 cm in experiment 1 and 1.63 cm in experiment 3. The increase in average growth in height was the largest in experiment 2 and amounted to 15.35 cm. The current and average increments in the trunk diameter in the zone of the root neck in all three experiments did not have signifi cant differences and was comparable to the years of research. The content of nitrogen, phosphorus and potassium in the annual needle without the use of iron nanoparticles corresponded to the tree species and its age. The use of iron nanoparticles in all three experiments increased the nitrogen and phosphorus content in the needle and did not change the potassium content.

scholarly journals Prognostic Factors Influencing Survival Rate of Patients Operated for Prostate-Related Metastatic Spinal Cord Compression (MSCC)

2020 ◽  
Vol 11 (3) ◽  
pp. 498-508
Author(s):  
Kouitcheu Romuald ◽  
Barrey Cédric ◽  
Mbende Alban ◽  
Diakité Ismael ◽  
N’Dri Oka Dominique ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Prognostic Factors ◽  
Survival Rate ◽  
Spinal Cord Compression ◽  
Cord Compression ◽  
Metastatic Spinal Cord Compression ◽  
Factors Influencing

Factors Influencing the Lifetime of Telecommunication and Information Technology Standards

2009 ◽  
pp. 1529-1551
Author(s):  
Knut Blind
Keyword(s):  
Information Technology ◽  
Survival Rate ◽  
Technological Change ◽  
Survival Time ◽  
Survival Rates ◽  
Second Step ◽  
International Level ◽  
Technology Standards ◽  
Factors Influencing ◽  
Country Specific

This article presents the results of an explorative study for the lifetimes and survival rates of formal standards in telecommunication and information technology. The analysis reveals that the survival rate depends on the dynamic development of technologies and on country-specific characteristics. In a second step, we tried to identify factors influencing the lifetimes of standards. In general, standards replacing an already existing document have an expected survival time compared to documents without a predecessor. Standards with a successor document have, as anticipated, a shorter expected lifetime. Finally, the increased speed of technological change reduces the lifetimes of standards. Based on these first insights, we derive the following recommendations. First, standardisation bodies should adapt their standard maintenance according to the specific requirements of technologies and the related markets, but should also harmonise their processes at the international level in order to avoid frictions for the development of technologies and markets.

scholarly journals A new risk-stratification system for hepatoblastoma in children under six years old and the significance for prognosis evaluation—a 14-year retrospective study from a single center

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Tian Zhi ◽  
Wei-Ling Zhang ◽  
Yi Zhang ◽  
Hui-Min Hu ◽  
Yi-Zhuo Wang ◽  
...  
Keyword(s):  
Risk Factors ◽  
Survival Rate ◽  
Risk Stratification ◽  
Roc Curve ◽  
Pediatric Patients ◽  
List Type ◽  
Factors Influencing ◽  
Staging Systems ◽  
Stratification System ◽  
Risk Stratification System

Abstract Background This study explores and analyzes the clinical characteristics and prognostic factors of hepatoblastoma (HB) in children under 6 years old and establishes a new risk-stratification system for individualized therapy. Methods The clinical data of 382 pediatric patients under 6 years old (231 males and 151 females) who had been diagnosed with HB by pathology between May 2005 and May 2019 were collected. By analyzing the risk factors influencing the survival rate of patients with HB, a new risk-stratification system was established, and it was compared with previous risk-stratification systems by a receiver operating characteristic (ROC) curve. Results According to a Kaplan-Meier survival analysis, the one-year, three-year, and five-year overall survival (OS) was 93.7, 84.0, and 73.9%, respectively, and the event-free survival (EFS) was 90.5, 79.2, and 67.5%, respectively. The independent risk factors influencing prognosis in pediatric patients with HB were alpha-fetoprotein (AFP) < 100 ng/ml or > 1000 ng/ml (HR = 3.341, P = 0.005); platelet count > 400 × 109/L (pooled hazard ratio [HR] = 2.123, P = 0.026); PRETEXT stage IV (HR = 4.026, P = 0.001); vascular involvement (HR = 2.178, P = 0.019); distant metastasis (HR = 2.634, P = 0.010);and multifocality (HR = 2.215, P = 0.012). A new risk-stratification system was established and divided into three groups: low risk, moderate risk, and high risk. There were statistical differences among the three groups (P = 0.002). Compared with the previous risk-staging systems, there was no significant difference in the survival rate. Although the effect in the guiding therapy was the same, the area under the curve for the ROC curve was 0.835 (95% CI: 0.784–0.885) for the new stratification system. Conclusion This new risk-stratification system had a better predictive value for the prognosis of pediatric patients with HB than other stratification systems.

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