Frequency distribution studies

Neoadjuvant chemoradiotherapy (nCRT) and surgery have been recommended as the standard treatments for locally advanced esophageal squamous cell carcinoma (ESCC). In addition, nodal metastases decreased in frequency and changed in distribution after neoadjuvant therapy. This study aimed to examine the optimal strategy for lymph node dissection (LND) in patients with ESCC who underwent nCRT.

10p vikoch 27-06-2024 2 1   Download

Research on biomass and carbon stocks is very meaningful for managing and minimizing negative effects of climate change and global warming on people's lives. The study collected and analyzed data from plots for Acacia hybrid forests at two different age levels: 2 years and 6 years old in Ham Yen, Tuyen Quang. The analytical results showed that density at age 6 was lower than age 2. The diameter and height frequency distributions were well simulated by Weibull distribution.

10p vilarry 01-04-2024 7 1   Download

Many carcinomas have recurrent chromosomal aneuploidies specific to the tissue of tumor origin. The reason for this specificity is not completely understood. Methods: In this study, we looked at the frequency of chromosomal arm gains and losses in different cancer types from the The Cancer Genome Atlas (TCGA) and compared them to the mean gene expression of each chromosome arm in corresponding normal tissues of origin from the Genotype-Tissue Expression (GTEx) database, in addition to the distribution of tissue-specific oncogenes and tumor suppressors on different chromosome arms.

16p vibransone 28-03-2024 2 2   Download

The allele frequencies and phenotypic distributions of the five important CYP genes in the Vietnamese population are similar to those in East Asia while significantly different from other populations. In silico analysis also provided consistent results with previous experimental studies.

16p vimulcahy 18-09-2023 5 3   Download

Ebook Quantitative methods for business and management: Part 1 includes contents: Study unit 1 data and data collection, study unit 2 sampling procedures, study unit 3 tabulating and graphing frequency distributions, study unit 4 measures of location, study unit 5 measures of dispersion, study unit 6 index numbers, study unit 7 correlation, study unit 8 linear regression, study unit 9 time series analysis.

158p haojiubujain03 24-07-2023 10 4   Download

Demography and environmental adaptation can affect the global distribution of genetic variants and possibly the distribution of disease. Population heterozygosity of single nucleotide polymorphisms has been shown to decrease strongly with distance from Africa and this has been attributed to the effect of serial founding events during the migration of humans out of Africa.

12p vinarcissa 21-03-2023 2 2   Download

There are large individual differences in physical activity (PA) behavior as well as trainability of physical capacity. Heritability studies have shown that genes may have as much impact on exercise participation behavior as environmental factors.

11p vihagrid 30-01-2023 7 4   Download

Tree stump diameter plays a big role in forest resource management. The study used data from 23 plots. The results showed that the acacia community was classified into 2 clusters. The stump diameter mean of cluster 1 is larger than cluster 2. The stump diameter frequency distribution of cluster 1 was more right-skewed.

10p vilamborghini 12-10-2022 7 3   Download

Electrical impedance tomography (EIT) is a tool to monitor regional ventilation distribution in patient’s lungs under general anesthesia. The objective of this study was to assess the regional ventilation distribution using different driving pressures (DP) during high frequency jet ventilation (HFJV).

7p vampires36 30-12-2021 9 0   Download

The significant negative neutrality test values are the evidence of expansion of the total population. H. sieboldiana and H. kiyosumiensis are more widely distributed than other taxa. H. sieboldiana, H. alismifolia, H. longipes var. gracillima and H. kikutii var. polyneuron showed the excessive low frequency variants.

10p schindler 30-12-2021 10 0   Download

This study presents a Finite Element (FE) model updating methodology of a piping system and demonstrates vibration attenuation at its resonant frequencies using tuned local resonators distributed along its length. An experimental laboratory scaled version of a prototype piping system inspired from existing piping structures in the oil and gas industry is assembled to study its dynamic behavior under laboratory conditions.

16p guernsey 28-12-2021 8 0   Download

This study evaluates the microbial contamination rate to find the frequency and distribution of bacterial organisms among CB samplings in Vietnam. In addition, this study compares the contamination rates between two delivery methods: cesarean section and vaginal delivery. The results help create best practices to avoid a high level of contamination of CB during cord blood banking.

6p guitaracoustic02 08-12-2021 10 1   Download

On the basis of the data source of the 10 m wind field above the sea with the hourly frequency and during the period of 41 years (1979–2019) by the NCEP CFRS, we used the probability distribution functions to study the distribution law of wind speed in the waters of Ly Son island.

11p inception36 30-11-2021 14 2   Download

On the basis of the data source of the 10 m wind field above the sea with the hourly frequency and during the period of 41 years (1979–2019) by the NCEP CFRS, we used the probability distribution functions to study the distribution law of wind speed in the waters of Ly Son island. Specifically, four distribution functions (normal distribution, gamma distribution, Weibull distribution and extreme value distribution) were used to estimate the characteristic parameters of the shape and proportion of the wind distribution in the waters of Ly Son island.

10p inception36 30-11-2021 15 1   Download

The purpose of the study is to find the effects of different growing site conditions on trees with the vessel features in the woods of Quercus ilex L. growing in different regions through Turkey, and to evaluate the results in respect of forestry. A total of 102 wood samples were collected from 102 sampling plots (as 20 m × 10 m plots) in 9 distribution areas in Turkey. Environmental, climate and stand data were obtained for each plot. Standard wood anatomical studies were performed.

18p hanthienngao 30-11-2021 15 0   Download

Fractionation is the genome-wide process of losing one gene per duplicate pair following whole genome multiplication (doubling, tripling, ...). This is important in the evolution of plants over tens of millions of years, because of their repeated cycles of genome multiplication and fractionation. One type of evidence in the study of these processes is the frequency distribution of similarities between the two genes, over all the duplicate pairs in the genome.

11p vibeauty 23-10-2021 6 0   Download

Lecture Basic Statistics - Chapter 2: Frequency Distributions. After studying this section will help you understand: frequency distribution, frequency distribution tables, regular frequency distribution, grouped frequency distribution, frequency distribution graph,...

29p diepchilang 26-08-2021 10 1   Download

In addition, the displacement field of THSDT needs the high continuity in approximated formulation with high-order derivatives for a weak form of fourth order equation. According to IGA formulation based on the generalized THSDT, the shear locking phenomenon is free. The variables of THSDT are less than HSDTs which contain five DOFs per node. The influences of weight fractions, the coefficient porosity, dispersion patterns of GPLs and distribution types of porosity on structure’s natural frequencies are studied through some numerical examples.

16p chauchaungayxua12 09-07-2021 13 2   Download

Microsatellite repeats are ubiquitous in organism genomes and play an important role in the chromatin organization, regulation of gene activity, recombination and DNA replication. Although microsatellite distribution patterns have been studied in most phylogenetic lineages, they are unclear in fish species.

22p vilichoo2711 23-06-2021 9 1   Download

The quasi-3D shear deformation theory, which takes the thickness stretching effect into account, is adopted to formulate a finite element formulation for computing vibration characteristics. The accuracy of the derived formulation is confirmed through a comparison study. The numerical result reveals that the foundation supporting area plays an important role on the vibration behavior of the plates, and the effect of the layer thickness ratio on the frequencies is governed by the supporting area.

24p nguaconbaynhay11 07-04-2021 19 2   Download