Log in

Relevant bibliographies by topics / Variations / Journal articles

To see the other types of publications on this topic, follow the link: Variations.

Journal articles on the topic 'Variations'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 July 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Variations.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

S, Kanimozhi, and Arivuchudar R. "Influence of Quinoa Enrichment on the Formulation, Qualitative Parameters and Consumer Acceptability of Low-Gluten Foods." Biosciences Biotechnology Research Asia 20, no. 2 (June 30, 2023): 635–42. http://dx.doi.org/10.13005/bbra/3117.

Full text

Abstract:

ABSTRACT: Quinoa, is renowned as a grain of the 21st century in lieu of its capacity to withstand any climatic condition, its potential health benefits and exceptional nutritional value. Breakfast is the important meal of the day, which is skipped most often by most of the people. This study is framed with the objective of developing breakfast foods from the highly nutritious food grain like quinoa. As, Chapati and bars are easier to prepare and consume, the study aims at developing high-quality, convenient foods products by incorporating quinoa flour and quinoa flakes. The processed quinoa flour and flakes was substituted into the wheat flour and rice flakes in the proportion of 25, 50 & 75% to prepare chapati and bars of different variations namely variation1 (25Q:75W), variation2 (50Q:50W) and variation3 (75Q:25W). All the variations were analysed for physical characteristics, and organoleptic attributes like colour, appearance, mouth feel, texture, flavour, taste and overall acceptability was assessed by 30 panelist using a 9-point hedonic rating scale. The statistical analysis by Duncan’s test and ANOVA showed significant difference (p<0.05) in all the developed variations, when compared with control foods. The most accepted variation was subjected to nutrient analysis. The study report concludes that on comparing with control the presence of macronutrients such as protein and dietary fibre, micronutrients such as calcium, iron, phytochemicals like flavonoids (particularly quercetin, kaempferol and epigallocatechin) were found to be higher in variation 3 of the developed products (chapati and bars). Since quinoa is a gluten free food it can be given to celiac people, their high nutritious and dietary quality meets the demands of the food industry and consumers.

APA, Harvard, Vancouver, ISO, and other styles

2

Yang, Dong Ya, and Jun Gong. "Visualized Equivalent Variational Modeling in Tolerance Analysis of 3D Mechanical Assemblies." Advanced Materials Research 201-203 (February 2011): 229–33. http://dx.doi.org/10.4028/www.scientific.net/amr.201-203.229.

Full text

Abstract:

This paper introduces a new, visualized approach for including all the geometric feature variations in the tolerance analysis of mechanical assemblies. It focuses on how to characterize geometric feature variations in vector-loop-based assembly tolerance models. The characterization will be used to help combine the effects of all variations within an assembly in order to perform tolerance analysis of mechanical assemblies by employing commercial 3D kinematic software (e.g. ADAMS). Equivalent variational modeling, based on TAKS method, has been developed for modeling variations in 3D mechanical assemblies. Create a library of Equivalent Variational Joints (EVJs) to allow inclusion all kinds of variations in analysis, and allow the kinematic model to include both geometric and dimensional variation in a velocity analysis. EVJ, for use in tolerance analysis, was developed for commonly used 3D kinematic joint types, and was implemented with examples to explain their use to form Equivalent Variational Mechanisms (EVMs).

APA, Harvard, Vancouver, ISO, and other styles

3

Hedeker, Donald. "Variations in Models of Intraindividual Variation." Contemporary Psychology 49, no. 1 (February 2004): 102–5. http://dx.doi.org/10.1037/004266.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Baddar, Wissam J., and Yong Man Ro. "Mode Variational LSTM Robust to Unseen Modes of Variation: Application to Facial Expression Recognition." Proceedings of the AAAI Conference on Artificial Intelligence 33 (July 17, 2019): 3215–23. http://dx.doi.org/10.1609/aaai.v33i01.33013215.

Full text

Abstract:

Spatio-temporal feature encoding is essential for encoding the dynamics in video sequences. Recurrent neural networks, particularly long short-term memory (LSTM) units, have been popular as an efficient tool for encoding spatio-temporal features in sequences. In this work, we investigate the effect of mode variations on the encoded spatio-temporal features using LSTMs. We show that the LSTM retains information related to the mode variation in the sequence, which is irrelevant to the task at hand (e.g. classification facial expressions). Actually, the LSTM forget mechanism is not robust enough to mode variations and preserves information that could negatively affect the encoded spatio-temporal features. We propose the mode variational LSTM to encode spatio-temporal features robust to unseen modes of variation. The mode variational LSTM modifies the original LSTM structure by adding an additional cell state that focuses on encoding the mode variation in the input sequence. To efficiently regulate what features should be stored in the additional cell state, additional gating functionality is also introduced. The effectiveness of the proposed mode variational LSTM is verified using the facial expression recognition task. Comparative experiments on publicly available datasets verified that the proposed mode variational LSTM outperforms existing methods. Moreover, a new dynamic facial expression dataset with different modes of variation, including various modes like pose and illumination variations, was collected to comprehensively evaluate the proposed mode variational LSTM. Experimental results verified that the proposed mode variational LSTM encodes spatio-temporal features robust to unseen modes of variation.

APA, Harvard, Vancouver, ISO, and other styles

5

Palese, Marcella. "Variations by generalized symmetries of local Noether strong currents equivalent to global canonical Noether currents." Communications in Mathematics 24, no. 2 (December 1, 2016): 125–35. http://dx.doi.org/10.1515/cm-2016-0009.

Full text

Abstract:

Abstract We will pose the inverse problem question within the Krupka variational sequence framework. In particular, the interplay of inverse problems with symmetry and invariance properties will be exploited considering that the cohomology class of the variational Lie derivative of an equivalence class of forms, closed in the variational sequence, is trivial. We will focalize on the case of symmetries of globally defined field equations which are only locally variational and prove that variations of local Noether strong currents are variationally equivalent to global canonical Noether currents. Variations, taken to be generalized symmetries and also belonging to the kernel of the second variational derivative of the local problem, generate canonical Noether currents - associated with variations of local Lagrangians - which in particular turn out to be conserved along any section. We also characterize the variation of the canonical Noether currents associated with a local variational problem.

APA, Harvard, Vancouver, ISO, and other styles

6

Brown, Patrick O., and Leland Hartwell. "Genomics and human disease—variations on variation." Nature Genetics 18, no. 2 (February 1998): 91–93. http://dx.doi.org/10.1038/ng0298-91.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Kim, Hey-Jung. "Variation Method and Diffusion of Jajinarari Variations." Korean Folk song 67 (April 30, 2023): 167–89. http://dx.doi.org/10.56100/kfs.2023.4.67.167.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Irwan, Irwan, Hendra Eka Putra, and Rahmadani Rahmadani. "Students' Variation In Translating English Passive Voice Into Bahasa Indonesia." Langkawi: Journal of The Association for Arabic and English 4, no. 2 (December 24, 2018): 91. http://dx.doi.org/10.31332/lkw.v4i2.897.

Full text

Abstract:

This article was focused on analyzing students’ variation in translating English passive voice into Bahasa Indonesia. The data was taken from the final examination results of Translation I subject. There were 91 documents. Data were analyzed based on the theory of translation variation. There were 137 translation variations found after analyzing the students’ translation results. The variations of students’ translations were “(had) being banned” 8 translated variation, “was brought down in” 13 translated variation, “be sentenced” 7 translated variations, “(is) given by” 7 translated variations, “were convicted of” 7 translated variations, “were embroiled in” 5 translated variations, “was placed under” 7 translated variations, “is sponsored by” 4 translated variations, “(was) exposed by” 17 translated variations, “had been covered up by” 5 translated variations, “was banned from” 5 translated variations, “were excluded from” 5 translated variations, “have never been convicted of” 7 translated variations, “(was) banned for” 5 translated variations, “was not suspended” 11 translated variations, “have been banned for” 4 translated variations, “was charged over” 4 translated variations, “were investigated” 2 translated variations, “was caught up in” 4 translated variations. It can be concluded that the students’ translation skill especially in translating passive voice still have problem and it should be developed as well as possible.

APA, Harvard, Vancouver, ISO, and other styles

9

Steenbeek, Henderien, and Paul van Geert. "Variations on Dynamic Variations." Human Development 45, no. 3 (2002): 167–73. http://dx.doi.org/10.1159/000057072.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Wei, Ruoqi, Cesar Garcia, Ahmed El-Sayed, Viyaleta Peterson, and Ausif Mahmood. "Variations in Variational Autoencoders - A Comparative Evaluation." IEEE Access 8 (2020): 153651–70. http://dx.doi.org/10.1109/access.2020.3018151.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Liu, Baojie, Jiaxin Liu, Xianjun Yu, and Guangfeng An. "A Novel Decomposition Method for Manufacture Variations and the Sensitivity Analysis on Compressor Blades." Aerospace 9, no. 10 (September 23, 2022): 542. http://dx.doi.org/10.3390/aerospace9100542.

Full text

Abstract:

A high accuracy blade manufacture variation decomposition method was proposed to decompose the manufacture variations of compressor blades to systematic variation and non-systematic variation, which could help to clearly quantify the statistical characteristics of the effect of manufacture variations on the blade aerodynamic performance and to guide the modeling of manufacture variations in geometric uncertainty quantification and robust design studies. By conducting the decomposition of manufacture variations with 100 newly manufactured blades of a high-pressure compressor, it was found that the systematic variation could be modeled by using seven representative blade geometry design parameters well and the mean value of the non-systematic variation, which is determined by using the difference between the measured blade and systematically reconstructed blade, is close to zero. For the standard deviation of decomposed manufacture variations, the non-systematic variation accounts for about 40% of the whole, indicating that the systematic variation is the major component of the manufacture variation. However, based on statistical analysis and sensitivity analysis of the effects of the two types of manufacture variations on blade aerodynamic performance, it was found that the mean deviation of the blade loss mainly derives from systematic variations, and the loss dispersion caused by non-systematic variations is significantly greater than that caused by systematic variations. Furthermore, the blade loss at the high incidence angle is most sensitive to the inlet metal angle which belongs to the systematic variation. Meanwhile, the non-systematic variation near the leading-edge is the most sensitive, and it contributes to most of the performance disperse but only accounts for a geometric variation of about 0.45%.

APA, Harvard, Vancouver, ISO, and other styles

12

Gong, Guobin, and Xi'an Jiaotong. "A Revisit to Higher Variations of a Functional." Journal of Advance Research in Mathematics And Statistics (ISSN: 2208-2409) 6, no. 2 (February 28, 2019): 01–15. http://dx.doi.org/10.53555/nnms.v6i2.523.

Full text

Abstract:

Two definitions of higher variations of a functional can be found in the literature of variational principles or calculus of variations, which differ by only a positive coefficient number. At first glance, such a discrepancy between the two definitions seems to be purely due to a definition-style preference, as when they degenerate to the first variation it leads to the same result. The use of higher (especially second) variations of a functional is for checking the sufficient condition for the functional to be a minimum (or maximum), and both definitions also lead to the same conclusion regarding this aspect. However, a close theoretical study in this paper shows that only one of the two definitions is appropriate and the other is advised to be discarded. A theoretical method is developed to derive the expressions for higher variations of a functional, which is used for the above claim.

APA, Harvard, Vancouver, ISO, and other styles

13

Yan, Pengfei, Ling Yan, Tingting Hu, Zhen Zhang, Jun Feng, and Hongyang Zhao. "Assessment of the accuracy of ABC/2 variations in traumatic epidural hematoma volume estimation: a retrospective study." PeerJ 4 (April 11, 2016): e1921. http://dx.doi.org/10.7717/peerj.1921.

Full text

Abstract:

Background.The traumatic epidural hematoma (tEDH) volume is often used to assist in tEDH treatment planning and outcome prediction. ABC/2 is a well-accepted volume estimation method that can be used for tEDH volume estimation. Previous studies have proposed different variations of ABC/2; however, it is unclear which variation will provide a higher accuracy. Given the promising clinical contribution of accurate tEDH volume estimations, we sought to assess the accuracy of several ABC/2 variations in tEDH volume estimation.Methods.The study group comprised 53 patients with tEDH who had undergone non-contrast head computed tomography scans. For each patient, the tEDH volume was automatically estimated by eight ABC/2 variations (four traditional and four newly derived) with an in-house program, and results were compared to those from manual planimetry. Linear regression, the closest value, percentage deviation, and Bland-Altman plot were adopted to comprehensively assess accuracy.Results.Among all ABC/2 variations assessed, the traditional variationsy= 0.5 ×A1B1C1(orA2B2C1) and the newly derived variationsy= 0.65 ×A1B1C1(orA2B2C1) achieved higher accuracy than the other variations. No significant differences were observed between the estimated volume values generated by these variations and those of planimetry (p> 0.05). Comparatively, the former performed better than the latter in general, with smaller mean percentage deviations (7.28 ± 5.90% and 6.42 ± 5.74% versus 19.12 ± 6.33% and 21.28 ± 6.80%, respectively) and more values closest to planimetry (18/53 and 18/53 versus 2/53 and 0/53, respectively). Besides, deviations of most cases in the former fell within the range of <10% (71.70% and 84.91%, respectively), whereas deviations of most cases in the latter were in the range of 10–20% and >20% (90.57% and 96.23, respectively).Discussion.In the current study, we adopted an automatic approach to assess the accuracy of several ABC/2 variations for tEDH volume estimation. Our initial results showed that the variationsy= 0.5 ×A1B1C1(orA2B2C1) performed better than the other traditional variations, suggesting that the adjusted depth is favorable. In addition, linear regression has been shown to be useful for improving the estimation accuracy of the ABC/2 method, and future studies are warranted to investigate the applicability of such linear regression-derived formulas for clinical application.

APA, Harvard, Vancouver, ISO, and other styles

14

Mubarak, Husni. "Analisis Variasi Bahasa pada Pelayanan Rumah Sakit Umum Daerah Kotabaru." CENDEKIA: JURNAL ILMIAH PENDIDIKAN 8, no. 1 (March 30, 2020): 32–43. http://dx.doi.org/10.33659/cip.v8i1.148.

Full text

Abstract:

The purpose of this study was (1) to describe the variations in language contained in the service at the Kotabaru Regency General Hospital, (2) to describe the factors of language variation found in the service of the Kotabaru Regency Regional General Hospital. The method used in this study is a qualitative method that is descriptive by describing objectively and the actual speech that occurs. While this type of research is a qualitative descriptive study with analyzing data through field observations with the steps of collecting, analyzing and presenting data with observation techniques, recording techniques and note taking techniques. Based on the results of research conducted, it was found that variations in the language used by doctors, nurses, and patients were three language variations namely 1. language variation in terms of facilities, namely variations or variations in spoken language; 2. variations in language based on usage terms, namely variations in language functions or registers, and 3. variations in language based on the degree of officiality are variations in business languages â€‹â€‹or variations in business, variations in casual languages â€‹â€‹(casual). And the factors of language variation in the services of the Kotabaru District General Hospital are situational factors, gender factors, occupational or professional factors, environmental factors and educational factors. Keywords: Language Variation, Regional General Hospital Services

APA, Harvard, Vancouver, ISO, and other styles

15

Coskun, Abdurrahman, Atefeh Zarepour, and Ali Zarrabi. "Physiological Rhythms and Biological Variation of Biomolecules: The Road to Personalized Laboratory Medicine." International Journal of Molecular Sciences 24, no. 7 (March 27, 2023): 6275. http://dx.doi.org/10.3390/ijms24076275.

Full text

Abstract:

The concentration of biomolecules in living systems shows numerous systematic and random variations. Systematic variations can be classified based on the frequency of variations as ultradian (<24 h), circadian (approximately 24 h), and infradian (>24 h), which are partly predictable. Random biological variations are known as between-subject biological variations that are the variations among the set points of an analyte from different individuals and within-subject biological variation, which is the variation of the analyte around individuals’ set points. The random biological variation cannot be predicted but can be estimated using appropriate measurement and statistical procedures. Physiological rhythms and random biological variation of the analytes could be considered the essential elements of predictive, preventive, and particularly personalized laboratory medicine. This systematic review aims to summarize research that have been done about the types of physiological rhythms, biological variations, and their effects on laboratory tests. We have searched the PubMed and Web of Science databases for biological variation and physiological rhythm articles in English without time restrictions with the terms “Biological variation, Within-subject biological variation, Between-subject biological variation, Physiological rhythms, Ultradian rhythms, Circadian rhythm, Infradian rhythms”. It was concluded that, for effective management of predicting, preventing, and personalizing medicine, which is based on the safe and valid interpretation of patients’ laboratory test results, both physiological rhythms and biological variation of the measurands should be considered simultaneously.

APA, Harvard, Vancouver, ISO, and other styles

16

McAdams, Daniel A., and Irem Y. Tumer. "Toward Intelligent Fault Detection in Turbine Blades: Variational Vibration Models of Damaged Pinned-Pinned Beams." Journal of Vibration and Acoustics 127, no. 5 (November 29, 2004): 467–74. http://dx.doi.org/10.1115/1.2013296.

Full text

Abstract:

Inaccuracies in the modeling assumptions about the distributional characteristics of the monitored signatures have been shown to cause frequent false positives in vehicle monitoring systems for high-risk aerospace applications. To enable the development of robust fault detection methods, this work explores the deterministic as well as variational characteristics of failure signatures. Specifically, we explore the combined impact of crack damage and manufacturing variation on the vibrational characteristics of turbine blades modeled as pinned-pinned beams. The changes in the transverse vibration and associated eigenfrequencies of the beams are considered. Specifically, a complete variational beam vibration model is developed and presented that allows variations in geometry and material properties to be considered, with and without crack damage. To simplify variational simulation, separation of variables is used for fast simulations. This formulation is presented in detail. To establish a baseline of the effect of geometric variations on the system vibrational response, a complete numerical example is presented that includes damaged beams of ideal geometry and damaged beams with geometric variation. It is shown that changes in fault detection monitoring signals caused by geometric variation are small with those caused by damage and impending failure. Also, when combined, the impact of geometric variation and damage appear to be independent.

APA, Harvard, Vancouver, ISO, and other styles

17

Akomah, Benjamin Boahene, Zakari Mustapha, Justice William Mensah, and Roland William Lawson. "Variations in Building Construction Projects in Ghana: A Public Organisational Perspective." Baltic Journal of Real Estate Economics and Construction Management 11, no. 1 (January 1, 2023): 221–39. http://dx.doi.org/10.2478/bjreecm-2023-0014.

Full text

Abstract:

Abstract The occurrence of variations in building construction contracts is a subject that needs some attention in public sector projects. They are, almost all the time, detrimental rather than beneficial variations. The paper aimed to identify the nature of variations in government-initiated building projects over fourteen years, from 2000 to 2014, in the Central Region and their impacts. Preliminary counts of documents revealed that a total of 348 projects were executed over the period. The data collection process started by first sorting out files, contract documents, and payment certificates for the period under consideration. These documents were scrutinised one after the other to detect possible variations. The inclusion criterion for selecting a project was if a project had any form of variation(s) recorded. After thoroughly examining these 348 project documents, 84 were found to have variations. The study identified additional works and substitutions as the most inherent variations in public building projects in the Central Region. About 85 % of the variations found in the 84 projects with various forms of variations were additional works and substitutions. It was revealed that the cost of multiple variations was higher than single variations. Projects with multiple variations had high percentage variation and durations than others. Percentage variation in some instances was 400 %. The study identified that multiple variations were more costly than single variations. The highest variation cost identified was (USD 211 864.41 or EUR 183 150.18) for one project. The study identified the nature of variations that usually occurred in government building projects and their association with both cost and time. The study asserts that the presence of multiple change orders has substantial financial significance and should be diligently avoided through efficient project initiation and planning.

APA, Harvard, Vancouver, ISO, and other styles

18

Ajani, Ibrahim, and Cong Lu. "Assembly variation analysis of the non-rigid assembly with a deformation gradient model." Assembly Automation 42, no. 1 (November 18, 2021): 40–53. http://dx.doi.org/10.1108/aa-07-2021-0092.

Full text

Abstract:

Purpose This paper aims to develop a mathematical method to analyze the assembly variation of the non-rigid assembly, considering the manufacturing variations and the deformation variations of the non-rigid parts during the assembly process. Design/methodology/approach First, this paper proposes a deformation gradient model, which represents the deformation variations during the assembly process by considering the forces and the self-weight of the non-rigid parts. Second, the developed deformation gradient models from the assembly process are integrated into the homogenous transformation matrix to model the deformation variations and manufacturing variations of the deformed non-rigid part. Finally, a mathematical model to analyze the assembly variation propagation is developed to predict the dimensional and geometrical variations due to the manufacturing variations and the deformation variations during the assembly process. Findings Through the case study with a crosshead non-rigid assembly, the results indicate that during the assembly process, the individual deformation values of the non-rigid parts are small. However, the cumulative deformation variations of all the non-rigid parts and the manufacturing variations present a target value (w) of −0.2837 mm as compared to a target value of −0.3995 mm when the assembly is assumed to be rigid. The difference in the target values indicates that the influence of the non-rigid part deformation variations during the assembly process on the mechanical assembly accuracy cannot be ignored. Originality/value In this paper, a deformation gradient model is proposed to obtain the deformation variations of non-rigid parts during the assembly process. The small deformation variation, which is often modeled using a finite-element method in the existing works, is modeled using the proposed deformation gradient model and integrated into the nominal dimensions. Using the deformation gradient models, the non-rigid part deformation variations can be computed and the accumulated deformation variation can be easily obtained. The assembly variation propagation model is developed to predict the accuracy of the non-rigid assembly by integrating the deformation gradient models into the homogeneous transformation matrix.

APA, Harvard, Vancouver, ISO, and other styles

19

Sapanti, Intan Rawit, Ayu Andika Perihatin, and Kadek Purnawan. "Lexical variation of traditional snack naming in Palang Subdistrict, Tuban Regency." BAHASTRA 42, no. 2 (October 30, 2022): 161–70. http://dx.doi.org/10.26555/bs.v42i2.79.

Full text

Abstract:

This article discusses the lexical variations of the Javanese language in traditional snack name in Palang subdistrict, Tuban Regency. The reason for choosing this object of research, is to explain the dialect variation especially in traditional snack naming among the society and to explain the reasons of lexical variation. This article focusses on two research questions, (1) Lexical variation on traditional snack name in Palang subdistrict, Tuban Regency, (2) The causative factor of lexical variations. This research used qualitative descriptive. The data of 45 gloss traditional snack name were collected through 19 observation point from 19 village in Palang subdistrict using field method and proficient method. The research funding of this article found the lexical variations on traditional snack naming are as follows; 1) Group without variation (22 gloss), 2) Group with variations (18 gloss) which consists of 2, 3, 4 and 6 form of lexical variations. The causative factor of the lexical variations due to the way of living and geographic factor.

APA, Harvard, Vancouver, ISO, and other styles

20

Paudel, Nabin, Amit Jha, and Ujjwal Dahal. "Variations of Renal Vasculature in Multi Detector Computed Tomography Evaluation of Abdomen." Journal of Nepalgunj Medical College 20, no. 1 (July 31, 2022): 66–69. http://dx.doi.org/10.3126/jngmc.v20i1.48346.

Full text

Abstract:

Introduction: Normal vascular supply to each kidney is by a single artery and vein on each side. This normal pattern is not found in all cases. Arterial variations can be accessory renal arteries which can be hilar, upper polar or lower polar and early branching. Venous variations can be late confluence, multiple renal veins and on left there can be retroaortic or circumaortic course of the left renal vein. Aims: To evaluate renal vasculature variations in patients who undergo contrast enhanced MultiDetector Computed Tomography of the abdomen. Methods: This was a hospital based cross sectional study done in 290 consecutive patients who underwent contrast enhanced Multi Detector Computed Tomography abdomen in Nepalgunj Medical College. Normal as well as variations in renal vasculature was evaluated. Results: Total of 158 (54.48%) cases had normal arterial supply. Out of 132 cases with renal arterial variation, 96 cases (72.7%) were unilateral and early branching was the most common unilateral renal arterial variation (36.4%) followed by upper polar (20.8%), lower polar (20.8%) and hilar (16.6%) arteries. Concurrent upper and lower polar arteries and combined early branching and lower polar arterial system were the most common multiple unilateral renal arterial variation seen in 2.08% cases respectively. 36 (27.27%) cases had bilateral renal arterial variations. Most cases had early branching in bilateral renal arteries seen in 9.09% cases. Venous variations were seen in 11.03%.Late confluence was the most common variation seen in 62.5% cases with variations. Rest were multiple renal veins. Left sided retroaortic and circumaortic course and bilateral renal vein variations were not found in our study. Conclusion: Renal vasculature variations were frequently observed in routine contrast enhanced Multi Detector Computed Tomography evaluation of abdomen. Renal arterial variation was more common than venous variations. Unilateral variations were more common than bilateral.

APA, Harvard, Vancouver, ISO, and other styles

21

Pooseh, Shakoor, Ricardo Almeida, and Delfim Torres. "A discrete time method to the first variation of fractional order variational functionals." Open Physics 11, no. 10 (January 1, 2013). http://dx.doi.org/10.2478/s11534-013-0250-0.

Full text

Abstract:

AbstractThe fact that the first variation of a variational functional must vanish along an extremizer is the base of most effective solution schemes to solve problems of the calculus of variations. We generalize the method to variational problems involving fractional order derivatives. First order splines are used as variations, for which fractional derivatives are known. The Grünwald-Letnikov definition of fractional derivative is used, because of its intrinsic discrete nature that leads to straightforward approximations.

APA, Harvard, Vancouver, ISO, and other styles

22

Shu, Chang, Qinglan Sun, Guomei Fan, Kesheng Peng, Zhengfei Yu, Yingfeng Luo, Shenghan Gao, et al. "VarEPS-Influ:an risk evaluation system of occurred and virtual variations of influenza virus genomes." Nucleic Acids Research, October 27, 2023. http://dx.doi.org/10.1093/nar/gkad912.

Full text

Abstract:

Abstract Influenza viruses undergo frequent genomic mutations, leading to potential cross-species transmission, phenotypic changes, and challenges in diagnostic reagents and vaccines. Accurately evaluating and predicting the risk of such variations remain significant challenges. To address this, we developed the VarEPS-Influ database, an influenza virus variations risk evaluation system (VarEPS-Influ). This database employs a ‘multi-dimensional evaluation of mutations’ strategy, utilizing various tools to assess the physical and chemical properties, primary, secondary, and tertiary structures, receptor affinity, antibody binding capacity, antigen epitopes, and other aspects of the variation's impact. Additionally, we consider space-time distribution, host species distribution, pedigree analysis, and frequency of mutations to provide a comprehensive risk evaluation of mutations and viruses. The VarEPS-Influ database evaluates both observed variations and virtual variations (variations that have not yet occurred), thereby addressing the time-lag issue in risk predictions. Our current one-stop evaluation system for influenza virus genomic variation integrates 1065290 sequences from 224 927 Influenza A, B and C isolates retrieved from public resources. Researchers can freely access the data at https://nmdc.cn/influvar/.

APA, Harvard, Vancouver, ISO, and other styles

23

Fenske, David E., and Jon W. Dunn. "The VARIATIONS Project at Indiana University's Music Library." D-Lib Magazine 2, no. 6 (June 1996). http://dx.doi.org/10.1045/june96-variations.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Thomas, Tom, Wendy Weijermars, and Eric van Berkum. "Variations in urban traffic volumes." European Journal of Transport and Infrastructure Research, 2008. http://dx.doi.org/10.18757/ejtir.2008.8.3.3349.

Full text

Abstract:

This paper describes the variation in traffic volumes in the Dutch city of Almelo. For this study, we used traffic counts which were collected at about 20 intersections from September 2004 until September 2005. The objective of this study is to provide insight in both periodic and random variation in urban traffic volumes. This insight is used by policy makers and traffic managers to determine a suitable set of traffic measures. It is also a basis for short term predictions of volumes. We conclude that we can distinguish the following types of variation with respect to the average daily volume profile. (1) Seasonal variations with time-scales of weeks and weekly variations that describe the variation from day to day. These variations can be as large as 10% for the city of Almelo. (2) Periodic variations at time-scales of typically 30 minutes. These variations are recurrent and are often larger than 10%. (3) Noise. This variation has a random character. We show that the noise can be approximated by a Poisson distribution.

APA, Harvard, Vancouver, ISO, and other styles

25

Thomas, Tom, Wendy Weijermars, and Eric Van Berkum. "Variations in urban traffic volumes." European Journal of Transport and Infrastructure Research, 2008. http://dx.doi.org/10.18757/ejtir.2008.8.3.3350.

Full text

Abstract:

This paper describes the variation in traffic volumes in the Dutch city of Almelo. For this study, we used traffic counts which were collected at about 20 intersections from September 2004 until September 2005. The objective of this study is to provide insight in both periodic and random variation in urban traffic volumes. This insight is used by policy makers and traffic managers to determine a suitable set of traffic measures. It is also a basis for short term predictions of volumes. We conclude that we can distinguish the following types of variation with respect to the average daily volume profile. (1) Seasonal variations with time-scales of weeks and weekly variations that describe the variation from day to day. These variations can be as large as 10% for the city of Almelo. (2) Periodic variations at time-scales of typically 30 minutes. These variations are recurrent and are often larger than 10%. (3) Noise. This variation has a random character. We show that the noise can be approximated by a Poisson distribution.

APA, Harvard, Vancouver, ISO, and other styles

26

Froger, Lilian. "Paysages variations : autour du paysage comme variation artistique." Critique d’art, June 1, 2016. http://dx.doi.org/10.4000/critiquedart.17546.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Cheng, Haozheng, Yangliu Dong, Le Wang, Xian Zhao, Xiangyi Zhe, Dongmei Li, Hongtao Li, Renfu Shao, Jing Tuo, and Zemin Pan. "Analysis of human papillomavirus type 16 E4, E5 and L2 gene variations among women with cervical infection in Xinjiang, China." BMC Medical Genomics 17, no. 1 (July 4, 2024). http://dx.doi.org/10.1186/s12920-024-01926-3.

Full text

Abstract:

Abstract Background There is a high incidence of cervical cancer in Xinjiang. Genetic variation in human papillomavirus may increase its ability to invade, spread, and escape host immune response. Methods HPV16 genome was sequenced for 90 positive samples of HPV16 infection. Sequences of the E4, E5 and L2 genes were analysed to reveal sequence variation of HPV16 in Xinjiang and the distribution of variation among the positive samples of HPV16 infection. Results Eighty-one of the 90 samples of HPV16 infection showed variation in HPV16 E4 gene with 18 nucleotide variation sites, of which 8 sites were synonymous variations and 11 missense variations. 90 samples of HPV16 infection showed variation in HPV16 E5 and L2 genes with 16 nucleotide variation sites (6 synonymous, 11 missense variations) in the E5 gene and 100 nucleotide variation sites in L2 gene (37 synonymous, 67 missense variations). The frequency of HPV16 L2 gene missense variations G3377A, G3599A, G3703A, and G3757A was higher in the case groups than in the control groups. Conclusions Phylogenetic tree analysis showed that 87 samples were European strains, 3 cases were Asian strains, there were no other variations, and G4181A was related to Asian strains. HPV16 L2 gene missense variations G3377A, G3599A, G3703A, and G3757A were significantly more frequent in the case groups than in the control groups.

APA, Harvard, Vancouver, ISO, and other styles

28

Vihinen, Mauno. "Nonsynonymous synonymous variants demand for a paradigm shift in genetics." Current Genomics 24 (April 17, 2023). http://dx.doi.org/10.2174/1389202924666230417101020.

Full text

Abstract:

Abstract: Synonymous (also known as silent) variations are by definition not considered to change the coded protein. Still many variations in this category affect either protein abundance or properties. As this situation is confusing, we have recently introduced systematics for synonymous variations and those that may on the surface look like synonymous, but these may affect the coded protein in various ways. A new category, unsense variation, was introduced to describe variants that do not introduce a stop codon into the variation site, but which lead to different types of changes in the coded protein. Many of these variations lead to mRNA degradation and missing protein. Here, consequences of the systematics are discussed from the perspectives of variation annotation and interpretation, evolutionary calculations, nonsynonymous-to-synonymous substitution rates, phylogenetics and other evolutionary inferences that are based on the principle of (nearly) neutral synonymous variations. It may be necessary to reassess published results. Further, databases for synonymous variations and prediction methods for such variations should consider unsense variations. Thus, there is a need to evaluate and reflect principles of numerous aspects in genetics, ranging from variation naming and classification to evolutionary calculations.

APA, Harvard, Vancouver, ISO, and other styles

29

Sharma, R., R. K. Singla, R. Sharma, and T. Sharma. "Superficial BrachialArtery with its High Division." Journal of Nepal Medical Association 52, no. 187 (September 30, 2012). http://dx.doi.org/10.31729/jnma.364.

Full text

Abstract:

The upper extremity arterial system shows a large number of variations attributed to the complex and multiple sites of their embryonic development. It is important to be aware of arterial variations in this region because upper extremity is a frequent site of injury. Moreover, brachial artery is of significance in cardiac catheterization for angioplasty, pedicle flaps, or arterial grafting. Accurate knowledge and relationships of major arterial conduits and their variational patterns is important in reparative surgery in the arm, forearm and hand. One such variation is superficial brachial artery with prevalence rate of 0.2- 25%. In this report, the brachial artery emanated normally but coursed superficial to the median nerve and about five cm above the intercondylar line, bifurcated into its terminal branches i.e. radial and ulnar artery. Keywords: brachial artery;high division; variations.

APA, Harvard, Vancouver, ISO, and other styles

30

Zhao, Jia, Bo Wang, Shengjun Ta, Xiaonan Lu, Xueli Zhao, Jiao Liu, Jiarui Yuan, Jing Wang, and Liwen Liu. "Association between hypertrophic cardiomyopathy and variations in sarcomere gene and calcium channel gene in adults." Cardiology, April 12, 2024. http://dx.doi.org/10.1159/000538747.

Full text

Abstract:

Introduction: Calcium channel gene variations have been reported to be associated with hypertrophic cardiomyopathy (HCM) in family, but the relationship between calcium channel gene variations and HCM remains undefined in population. Methods: A total of 719 HCM unrelated patients were initially enrolled. Finally, 371 patients were identified based on inclusion and exclusion criteria, including 145 patients with gene negative, 28 patients with a single rare calcium channel gene variation (calcium gene variation), 162 patients with a single pathogenic/likely pathogenic sarcomere gene variation (sarcomere gene variation) and 36 patients with a single pathogenic/likely pathogenic sarcomere gene variation and a single rare calcium channel gene variation (double gene variations). Then the demographic, electrocardiographic, echocardiographic and follow-up data were collected. Results: Patients with double gene variations were at an earlier age and had more percent of family history of HCM, and had thicker walls, higher left ventricular outflow tract pressure gradient, more pathological Q waves, and more bundle branch block as compared with those with single sarcomere gene variation. During the follow-up period, patients with double gene variations had more primary endpoints than other three groups (p=0.0013). Multivariate analysis showed that double gene variations was the independent predictor of for primary endpoint events in patients (HR 4.82, 95% CI 1.77 to 13.2; p=0.002). Conclusion: We found that patients with double gene variations had more severe HCM phenotype and prognosis. The pathogenesis effects of sarcomere gene variation and calcium channel gene variation may be cumulative in HCM populations.

APA, Harvard, Vancouver, ISO, and other styles

31

Sagradini, Lucia. "76." Variations, no. 15 (March 1, 2011). http://dx.doi.org/10.4000/variations.101.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Neumann, Alexander. "Au sujet de la vie mutilée." Variations, no. 15 (March 1, 2011). http://dx.doi.org/10.4000/variations.103.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

(-), Jean-Marie Vincent. "Adorno contre Habermas, et au-delà." Variations, no. 22 (March 4, 2019). http://dx.doi.org/10.4000/variations.1034.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Poirier, Nicolas. "Retour sur la notion d’expérience prolétarienne : Claude Lefort à Socialisme ou Barbarie." Variations, no. 15 (March 1, 2011). http://dx.doi.org/10.4000/variations.105.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Neumann, Alexander. "Habermas, philosophe allemand de la restauration française?" Variations, no. 22 (March 4, 2019). http://dx.doi.org/10.4000/variations.1061.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Homs, Clément. "Anselm Jappe, Crédit à mort. La décomposition du capitalisme et ses critiques." Variations, no. 15 (March 1, 2011). http://dx.doi.org/10.4000/variations.107.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Glorie, Caroline, Jeremy Hamers, Timothée Moreau, and Alexander Neumann. "Table ronde au sujet du livre Après Habermas à l'Université de Liège - Humanités critiques." Variations, no. 22 (March 4, 2019). http://dx.doi.org/10.4000/variations.1071.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Epsztajn, Didier. "Une cartographie inventive mais limitée." Variations, no. 15 (March 1, 2011). http://dx.doi.org/10.4000/variations.110.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Lyra, Paulo Arantes en entretien avec. "L'autre sens. Une Théorie critique à la périphérie du capitalisme." Variations, no. 22 (March 4, 2019). http://dx.doi.org/10.4000/variations.1115.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Buxton, David. "Une lecture adornienne des séries télévisées." Variations, no. 22 (March 4, 2019). http://dx.doi.org/10.4000/variations.1149.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Brancaccio, Francesco. "Changer la ville." Variations, no. 22 (March 4, 2019). http://dx.doi.org/10.4000/variations.1170.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Fourel, Christophe. "Sortie du capitalisme, revenu d’existence et monnaies alternatives dans la pensée de Gorz." Variations, no. 22 (March 4, 2019). http://dx.doi.org/10.4000/variations.1194.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Leonardi, Emanuele. "Lien valeur-nature dans la pensée d'André Gorz." Variations, no. 22 (March 4, 2019). http://dx.doi.org/10.4000/variations.1211.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Moreau de Bellaing, Louis. "Bernard Hours, Monique Selim, Anthropologie politique de la globalisation." Variations, no. 16 (January 16, 2012). http://dx.doi.org/10.4000/variations.123.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Vercellone, Carlo. "Liberté, j’écris ton nom." Variations, no. 22 (March 4, 2019). http://dx.doi.org/10.4000/variations.1237.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Szalay, Michael. "L’or flexible de HBO." Variations, no. 22 (March 4, 2019). http://dx.doi.org/10.4000/variations.1249.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

de Boisriou, Valentine, and Hamza Ben Yahya. "Errances révolutionnaires. Entretien avec H." Variations, no. 16 (January 16, 2012). http://dx.doi.org/10.4000/variations.135.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Granjon, Fabien. "Présentation : des topolitiques culturelles oppositionnelles." Variations, no. 23 (September 1, 2020). http://dx.doi.org/10.4000/variations.1361.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Lubat, Bernard. "La Jazzcogne : territoires et imaginaires de/en lutte." Variations, no. 23 (September 1, 2020). http://dx.doi.org/10.4000/variations.1363.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Ballón, Leo Casas. "Le folklore Quechua comme vecteur de l’émancipation indigène." Variations, no. 23 (September 1, 2020). http://dx.doi.org/10.4000/variations.1367.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!