4,877 research outputs found
Evaluation of Computerized information systems of small business Organizations
Computer is an important tool in which business organizations use in financial reporting and operational methods to obtain data recording systems as well as computer literacy is treated as an important asset in the modern business world. The study described the computer literacy of Small business staff and owners, the level of usefulness and seriousness of problems encountered in using computers. Further, the study determined the significant difference among the level of literacy, usefulness and seriousness of problems encountered by small business staff and owners in using computers. Rejecting the hypothesis, there is significant difference on the responses of Small business staff and Small business owners as to literacy, usefulness, and seriousness of problems being encountered by respondents in performing their work with the use of computer. Based on the findings, the extent of literacy on computer especially on the context of information systems that are present in the computer is very much literate. The level of usefulness of computer especially on the information systems in making financial reports according to the response of Small business staff is moderately useful. While for Small business owners, it is very much useful. The respondents commonly experience problems with their advancement using computerized information system. It implies that there are no serious problems being encountered by respondents in dealing with the aid of computer. The researcher recommends that Small business organizations (SBOs) should develop a different approach especially designed for the respondents. This could be done in coordination to multi-agency to provide adequate knowledge in utilizing the information systems that are being installed in the computer
Factors Affecting Consumer Satisfaction to Online Shopping
Most companies are expanding their network through an online platform. Under various scenarios (e.g. pandemic situations), market vendors should be versatile and adaptable to different types of distribution channels. This paper described the factors affecting consumer satisfaction to online shopping such as reliability and responsiveness, assurance and empathy, and tangibility. This paper determined the significant difference between the sex of respondents and the factors affecting consumer satisfaction to online shopping. This paper used a descriptive method, a total of 487 online consumers (219 Male and 268 Female) within Cabanatuan City were involved in this study using adopted questionnaire with adopted likert-scale responses. Based on the gathered data, the researchers drew four conclusions. First, the respondents have a strong degree of confidence in their respective website/application for online shopping. Hence, it is recommended that owners of online shopping website/application should work on improving their order cancelation and returns. Second, the respondents trusted online shopping websites/applications because of their marketing tactics, such as word of mouth, to boost their credibility. Hence, it is highly suggested that the owners of online shopping website/application should track the problems involving product delivery. Third, respondents have been literate in using and searching online shopping websites/applications. Hence, it is recommended that the owners of the online shopping website/application continuously improve their system to keep their consumers satisfied. Finally, the null hypothesis is retained. It implies that sex does not affect the consumer satisfaction to online shopping factors. Thus, it is suggested to look for other variables that may affect consumer satisfaction
Unilateral pulmonary vein atresia: A rare case of hemoptysis
AbstractWe present a rare case of hemoptysis secondary to isolated unilateral pulmonary vein atresia. Isolated pulmonary vein atresia is a rare condition in which patients typically acquire a diagnosis in infancy and early childhood [Mataciunas et al.; Pourmoghadam et al.]. Our patient presented during puberty with several previous episodes of hemoptysis prior to her admission and diagnosis. The initial diagnosis was suspected in our patient from chest computerized tomography (CT), and confirmed with cardiac catheterization and pulmonary angiography. Treatment aim is to preserve lung function and minimize irreversible pulmonary remodeling [Pourmoghadam et al.; Harrison et al.]. Conservative monitoring can be considered with milder or asymptomatic cases, while others may require preoperative collateral artery banding, surgical anastomosis between the pulmonary vein (PV) & left atrium (LA) and even pneumonectomy [Pourmoghadam et al.]
ISSI IS46DR16640B-25DBA25 DDR2 SDRAM Total Ionizing Dose Characterization Test Report
The purpose of this testing is to characterize the ISSI IS46DR16640B-25DBA25 parameter degradation for total dose response. This tests purpose is to evaluate and compare lot date codes for sensitivity. In the test, the device is exposed to both low dose and high dose rate (HDR) irradiations using gamma radiation. Device parameters such as leakage currents, quantity of upset bits or addresses, and overall chip and die health are investigated to determine which lot is more robust. These parameters directly affect the functionality of the memory within a system and may determine thresholds necessary to mitigate failure
Methodological Bias in Estimates of Strain Composition and Straying of HatcheryâProduced Steelhead in Lake Michigan Tributaries
Steelhead Oncorhynchus mykiss were first introduced into the Great Lakes in the late 1800s. Subsequently, natural recruitment of steelhead from spawning runs in streams across the basin has been regularly supplemented by hatchery production of strains derived from widely dispersed locales within the speciesâ native range. Estimates of hatchery contributions to the spawning runs of naturalized populations may be underrepresented by observations of marked fish, as not all hatchery fish are marked prior to release. To assess the potential bias in estimates of the hatchery contribution to steelhead spawning runs in four major rivers in Michigan, we used scale pattern analysis (SPA) to identify nonmarked hatchery fish and multilocus genotypes to estimate the proportional contributions of each hatchery strain to spawning runs. The four hatchery strains currently stocked are significantly genetically distinct (mean FST = 0.077), making it possible to identify specific strains by use of likelihoodâbased assignment tests. The differences between direct (mark observations) and indirect (SPA and genetic analysis) estimates of hatchery contribution were mainly due to variations in the percentage of hatchery fish marked by states prior to release and the potential for confusion between certain marks and injuries. By combining direct and indirect assessment methodologies, we estimated that the percentage of hatchery fish returning to the four rivers ranged from 13% to 31% of total spawning runs. The large contribution of hatchery fish to nonstocked rivers differed significantly from expectations of strainâspecific stocking rates across the Lake Michigan basin and for individual streams, indicating high amounts of straying into Michigan streams.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141020/1/nafm1288.pd
Energy scales in a stabilized brane world
Brane world gravity looks different for observers on positive and negative
tension branes. First we consider the well-known RS1 model with two branes
embedded into the AdS_5 space-time and recall the results on the relations
between the energy scales for an observer on the negative tension brane, which
is supposed to be "our" brane. Then from the point of view of this observer we
study energy scales and masses for the radion and graviton excitations in a
stabilized brane world model. We argue that there may be several possibilities
leading to scales of the order 1-10 TeV or even less for new physics effects on
our brane. In particular, an interesting scenario can arise in the case of a
"symmetric" brane world with a nontrivial warp factor in the bulk, which
however takes equal values on both branes.Comment: 15 pages, corrected typos, enlarged conten
MRI radiomic features are independently associated with overall survival in soft tissue sarcoma
Purpose: Soft tissue sarcomas (STS) represent a heterogeneous group of diseases, and selection of individualized treatments remains a challenge. The goal of this study was to determine whether radiomic features extracted from magnetic resonance (MR) images are independently associated with overall survival (OS) in STS.
Methods and Materials: This study analyzed 2 independent cohorts of adult patients with stage II-III STS treated at center 1 (N = 165) and center 2 (N = 61). Thirty radiomic features were extracted from pretreatment T1-weighted contrast-enhanced MR images. Prognostic models for OS were derived on the center 1 cohort and validated on the center 2 cohort. Clinical-only (C), radiomics-only (R), and clinical and radiomics (C+R) penalized Cox models were constructed. Model performance was assessed using Harrell\u27s concordance index.
Results: In the R model, tumor volume (hazard ratio [HR], 1.5) and 4 texture features (HR, 1.1-1.5) were selected. In the C+R model, both age (HR, 1.4) and grade (HR, 1.7) were selected along with 5 radiomic features. The adjusted c-indices of the 3 models ranged from 0.68 (C) to 0.74 (C+R) in the derivation cohort and 0.68 (R) to 0.78 (C+R) in the validation cohort. The radiomic features were independently associated with OS in the validation cohort after accounting for age and grade (HR, 2.4;
Conclusions: This study found that radiomic features extracted from MR images are independently associated with OS when accounting for age and tumor grade. The overall predictive performance of 3-year OS using a model based on clinical and radiomic features was replicated in an independent cohort. Optimal models using clinical and radiomic features could improve personalized selection of therapy in patients with STS
- âŠ