A Theoretical Study: Selection of a Personalized Radiotherapy Fractionation Schedule Using Spatiotemporal Optimization

2015 ◽  
Author(s):  
Minsun Kim ◽  
Robert Stewart ◽  
Mark H Phillips
Keyword(s):  
Theoretical Study ◽  
Study Selection ◽  
Fractionation Schedule ◽  
Selection Of

Structural and conformational changes in [M(1,10-diaza-18-crown-6)Cl2] (M = Pd, Pb) complexes: a crystallographic and theoretical study

CrystEngComm ◽  
2018 ◽  
Vol 20 (42) ◽  
pp. 6733-6740 ◽  
Author(s):  
Antonino Arenaza-Corona ◽  
David Morales-Morales ◽  
Iran F. Hernández-Ahuactzi ◽  
Victor Barba
Keyword(s):  
Conformational Changes ◽  
Theoretical Study ◽  
Solvent System ◽  
Selection Of ◽  
Solvent Solvent

The appropriate selection of a given solvent/solvent system influences directly the molecular conformational structures of MLX2 complexes.

scholarly journals Framework built on resource based view for outsourcing strategy on hiring logistics service provider

2018 ◽  
Vol 25 (3) ◽  
pp. 458-484 ◽  
Author(s):  
Geraldo Cardoso de Oliveira Neto ◽  
Moacir Godinho Filho ◽  
Marilson Alves Gonçalves ◽  
Benny Kramer Costa ◽  
Dirceu da Silva ◽  
...  
Keyword(s):  
Supply Chain ◽  
Service Provider ◽  
Theoretical Study ◽  
Resource Based View ◽  
Chain Management ◽  
Logistics Service ◽  
Logistics Service Provider ◽  
Outsourcing Logistics ◽  
Selection Of ◽  
Operational Structure

Abstract The process of Outsourcing Logistics Service (OLS) is deemed incipient in the management of organizations, not only because of the operational problems it presents, but also of its difficulties fitting into the company’s overall strategy. The present theoretical study, building on the resource-based view of the firm, aims to propose a framework that guides managers in developing strategies to OLS starting from the operational structure to establish the necessary resources, capabilities, and routines. In addition, taken into account is the importance of analyzing risks and resilience in the environment, concomitantly with the analysis of the operational structure. Thus, four questions were developed, aimed at leading operations managers to reflect on the development of the strategy. The framework proposed for OLS considers the supply chain management department as the main interlocutor of the strategy. This framework can be adapted according with the necessity of the contracting company, and its main intention is to enable the establishment of a project that contemplates the necessary resources, the capabilities (criteria), and the operational routines (subcriteria) for the selection of a logistics service provider in the market, one which truly addresses the needs of the organization. This framework is already intrinsic in the practical actions of the authors, because of their extensive advisory activity over the last five years in OLS to logistics service provider. In addition, it is worth mentioning that so far in the tacit applications of this framework there has been no application similar to another.

Phylogeny of the family Pasteurellaceae based on rpoB sequences

2004 ◽  
Vol 54 (4) ◽  
pp. 1393-1399 ◽  
Author(s):  
Bożena Korczak ◽  
Henrik Christensen ◽  
Stefan Emler ◽  
Joachim Frey ◽  
Peter Kuhnert
Keyword(s):  
16S Rdna ◽  
Dna Hybridization ◽  
Gene Encoding ◽  
Phylogenetic Studies ◽  
Study Selection ◽  
Gene Sequence Analysis ◽  
Rdna Sequencing ◽  
The Family ◽  
Type Strains ◽  
Selection Of

Sequences of the gene encoding the β-subunit of the RNA polymerase (rpoB) were used to delineate the phylogeny of the family Pasteurellaceae. A total of 72 strains, including the type strains of the major described species as well as selected field isolates, were included in the study. Selection of universal rpoB-derived primers for the family allowed straightforward amplification and sequencing of a 560 bp fragment of the rpoB gene. In parallel, 16S rDNA was sequenced from all strains. The phylogenetic tree obtained with the rpoB sequences reflected the major branches of the tree obtained with the 16S rDNA, especially at the genus level. Only a few discrepancies between the trees were observed. In certain cases the rpoB phylogeny was in better agreement with DNA–DNA hybridization studies than the phylogeny derived from 16S rDNA. The rpoB gene is strongly conserved within the various species of the family of Pasteurellaceae. Hence, rpoB gene sequence analysis in conjunction with 16S rDNA sequencing is a valuable tool for phylogenetic studies of the Pasteurellaceae and may also prove useful for reorganizing the current taxonomy of this bacterial family.

A phytoremediation study: Selection of tropical and other vascular plants for decolorization of Poly R-478 dye

2006 ◽  
Vol 16 (4) ◽  
pp. 97-107 ◽  
Author(s):  
Daniel G. Paquin ◽  
Wenhao H. Sun ◽  
Chung-Shih Tang ◽  
Qing X. Li
Keyword(s):  
Vascular Plants ◽  
Study Selection ◽  
Selection Of

A Theoretic Study on Cam-Clamping Device

2011 ◽  
Vol 295-297 ◽  
pp. 1536-1539 ◽  
Author(s):  
Yuan Chao Deng
Keyword(s):  
Simple Structure ◽  
Theoretical Study ◽  
Low Cost ◽  
The Self ◽  
Clamping Force ◽  
Locking Mechanism ◽  
Different Types ◽  
Cam Profile ◽  
Clamping Device ◽  
Selection Of

A theoretical study has been made on the cam-clamping device. In this article, we consider specifically the calculations of cam geometry, calculations of clamping force and clamping torque, conditions for self-locking, and conditions for contact strength. Machine fixtures are essential in the process of mechanical manufacturing. There are many different types of fixtures, such as manual jig, pneumatic clamps, hydraulic fixtures, electric fixtures, etc. There are also many ways of clamping, such as incline clamp, screw clamp, eccentric circle clamp, hinge clamp [1], among which the eccentric circle clamp finds wide applications, especially in fast-clamping devices. Although the circular eccentric fixture possesses the advantages of simple structure, convenient manufacturing, and low cost, it suffers the drawbacks of small clamping force, short clamping-surface travel distance, and unreliable self-locking mechanism. The cam-clamping device discussesed in this article involves replaceing the eccentric circle with a cam, as shown in Fig. 1. The cam profile curve can be designed according to any requirements. The advantages of this replacement are obvious, in addition to preserving the advantages of the circular eccentric fixture, the cam-clamping can be designed according to the actual needs of clamping paths and selection of the appropriate cam profile to improve the self-locking.

scholarly journals A Theoretical Investigation of an Overhung Flexible Rotor Mounted on Uncentralized Squeeze-Film Damper Bearings and Flexible Supports

1982 ◽  
Author(s):  
R. A. Cookson ◽  
Xin-Hai Feng
Keyword(s):  
Theoretical Study ◽  
Effective Means ◽  
Complex Model ◽  
Squeeze Film ◽  
Flexible Rotor ◽  
Squeeze Film Damper ◽  
Surrounding Structure ◽  
Turbine Disc ◽  
Flexible Supports ◽  
Selection Of

Previous investigations have shown that the uncentralized type of squeeze-film damper is an effective means of reducing the transmission of unbalance forces into the supporting structure. In this theoretical study a more complex model, which includes an overhung “fan” disc and a noncentral “turbine” disc, has been employed. This model represents the conventional gas turbine somewhat closer than does the previously studied single disc system. This investigation has shown that it is possible to minimize the force transmitted into the surrounding structure by a careful selection of squeeze-film damper characteristics, although it may be found that some larger amplitudes of motion accompany the minimized transmissibility.

Effects of vitamin E supplementation on exercise-induced oxidative stress: a meta-analysis

2014 ◽  
Vol 39 (9) ◽  
pp. 1029-1037 ◽  
Author(s):  
Vahan Stepanyan ◽  
Melissa Crowe ◽  
Nagaraja Haleagrahara ◽  
Bruce Bowden
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Vitamin E ◽  
Muscle Damage ◽  
Meta Analysis ◽  
Protective Effects ◽  
Study Selection ◽  
Exercise Induced ◽  
Study Designs ◽  
Selection Of

Tocopherols (commonly referred to as “vitamin E”) are frequently studied antioxidants in exercise research. However, the studies are highly heterogeneous, which has resulted in contradicting opinions. The aim of this review is to identify similar studies investigating the effects of tocopherol supplementation on exercise performance and oxidative stress and to perform minimally biased qualitative comparisons and meta-analysis. The literature search and study selection were performed according to Cochrane guidelines. A 2-dimensional study execution process was developed to enable selection of similar and comparable studies. Twenty relevant studies were identified. The high variability of study designs resulted in final selection of 6 maximally relevant studies. Markers of lipid peroxidation (malondialdehyde) and muscle damage (creatine kinase) were the 2 most frequently and similarly measured variables. Meta comparison showed that tocopherol supplementation did not result in significant protection against either exercise-induced lipid peroxidation or muscle damage. The complex antioxidant nature of tocopherols and low accumulation rates in muscle tissues could underlie an absence of protective effects.

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