Davinder Singh

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Influence of technological innovation on performance of small manufacturing companies

International Journal of Productivity and Performance Management, 2017

Purpose The purpose of this paper is to examine various technological innovation influencers (TII... more Purpose The purpose of this paper is to examine various technological innovation influencers (TIIs) in small manufacturing firms. It introduces a study framework of technological innovation and evaluates the relevance of four TIIs to building and sustaining the competitiveness of Indian firms. Design/methodology/approach This research is based on an in-depth survey of 135 firms located in India’s Northern region. Multiple regression analysis was employed to examine the correlation between TIIs and manufacturing firm performance (MFP) for these firms. Findings The findings verify that entrepreneurial capability, technology infrastructure capability and government initiatives are the most important TIIs for small firms. The findings are also validated by using statistical t-test and canonical correlation analysis. Research limitations/implications This study uses a single informant as the source of information on each firm. The study is limited to small-scale firms in the Northern reg...

Behavioral and psychological impact of returning breast density results to Latinas: study protocol for a randomized clinical trial

Trials, 2019

Background Breast cancer is the most common cancer and the leading cause of cancer mortality amon... more Background Breast cancer is the most common cancer and the leading cause of cancer mortality among Latinas. As more is learned about the association between mammographic breast density (MBD) and breast cancer risk, a number of U.S. states adopted legislation and now a federal law mandates written notification of MBD along with mammogram results. These notifications vary in content and readability, though, which may limit their effectiveness and create confusion or concern, especially among women with low health literacy or barriers to screening. The purpose of this study is to determine whether educational enhancement of MBD notification results in increased knowledge, decreased anxiety, and adherence to continued mammography screening among Latina women in a limited-resources setting. Methods Latinas LEarning About Density (LLEAD) is a randomized clinical trial (RCT) comparing the impact of three notification approaches on behavioral and psychological outcomes in Latina women. Appr...

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The Sangre Por Salud Biobank: Facilitating Genetic Research in an Underrepresented Latino Community

Public Health Genomics, 2016

Background/Aims: The Sangre Por Salud (Blood for Health; SPS) Biobank was created for the purpose... more Background/Aims: The Sangre Por Salud (Blood for Health; SPS) Biobank was created for the purpose of expanding precision medicine research to include underrepresented Latino patients. It is the result of a unique collaboration between Mayo Clinic and Mountain Park Health Center, a federally qualified community health center in Phoenix, Arizona. This report describes the rationale, development, implementation, and characteristics of the SPS Biobank. Methods: Latino adults (ages 18-85 years) who were active patients within Mountain Park Health Center's internal medicine practice in Phoenix, Ariz., and had no history of diabetes were eligible. Participants provided a personal and family history of chronic disease, completed a sociodemographic, psychosocial, and behavioral questionnaire, underwent a comprehensive cardiometabolic risk assessment (anthropometrics, blood pressure and labs), and provided blood samples for banking. Laboratory results of cardiometabolic testing were retur...

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The relationship of leaf rust resistance gene Lr13 and hybrid necrosis gene Ne2m on wheat chromosome 2BS

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik, Jan 10, 2015

Genetic and mutational analyses of wheat leaf rust resistance gene Lr13 and hybrid necrosis gene ... more Genetic and mutational analyses of wheat leaf rust resistance gene Lr13 and hybrid necrosis gene Ne2 m indicated that they are the same gene. Hybrid necrosis in wheat characterized by chlorosis and eventual necrosis of plant tissues in certain wheat hybrids is controlled by the interaction of complementary dominant genes Ne1 and Ne2 located on chromosome arms 5BL and 2BS, respectively. Multiple alleles at each locus can be identified by differences in necrotic phenotypes when varieties are crossed with a fixed accession of the other genotype. Some of at least five Ne2 alleles were described as s (strong), m (medium) and w (weak); alleles of Ne1 were similarly described. Ne2m causes moderate necrosis in hybrids with genotypes having Ne1s. Ne2 is located on chromosome arm 2BS in close proximity to Lr13. Most wheat lines with Ne2m carry Lr13, and all wheat lines with Lr13 appear to carry Ne2m. To further dissect the relationship between Lr13 and Ne2m, more than 350 crosses were made be...

Stabilization of contaminated soil and wastewater with chemically bonded phosphate ceramics

This report was prepared as an account of work sponsored by an agency of the United States Govern... more This report was prepared as an account of work sponsored by an agency of the United States Government Neither the United States Government nor any agency thereof, nor any of their employes, make any warranty, explpss or implied, or assumes any legal liability or responsibility for the acuuacy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or othemise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not neMssarfly state or reflect those of the United States Government or any agency thereof.

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The Design of an Extended AAAC Architecture

The design of a generic and flexible Authentication, Authorization, Accounting, and Charging Arch... more The design of a generic and flexible Authentication, Authorization, Accounting, and Charging Architecture (AAAC Arch) as well as the basic considerations of the AAAC System, which implements the architecture for the mobile Internet has been performed. This paper is based on the work carried out within the Moby Dick project, whose main objective is the facilitation of the deployment of an ubiquitous Mobile IPv6 QoS-aware infrastructure through a best-suited and pragmatic use of an evolutionary AAAC Architecture. While a number of orthogonal use cases of AAAC motivate the necessity of various distinct scenarios, covering Quality-of-Service (QoS) and mobility aspects, these use cases form the basis for the understanding and investigations on AAAC tasks, functions, components, and interactions to enable a problem description and requirements specification on a very fine-grained level. The AAAC Architecture design considerations take up those problems and define a clear solution space, covering in detail logical and physical components and their interactions, identifiers, a session model, profiles, and a security model. This paper closes with the projection of an implementation architecture for the proposed AAAC Arch, which will enable the instantiation of these concepts and their protocols in a given Internet.

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Performance Analysis of QOS-aware Resource Scheduling Strategies in LTE Femtocell Networks

OFDMA based-Long-term evolution (LTE) femtocells represent a very promising answer to the ever ri... more OFDMA based-Long-term evolution (LTE) femtocells represent a very promising answer to the ever rising bandwidth demand of mobile applications. Femtocells, standardised as HeNBs, are end user deployed network nodes for indoor environment with a network backhaul provided by the digital subscriber line (DSL) or cable modem. The base station called as Femtocell Access Point can be easily deployed in adhoc manner. Femtocells improve the coverage in indoor scenarios and provide better user experience, thereby increasing the network capacity. Resource allocation strategies play a key role in distributing radio resources among different stations, with fine time and frequency resolutions by taking into consideration the channel conditions as well as QoS requirements. The present paper provides performance comparisons of radio resource scheduling strategies such as Proportional-Fair (PF), Modified Largest Weighted Delay First (MLWDF), Exponential Rule, Exponential/PF (EXP/PF), LOG Rule and Frame Level Scheduler (FLS) with stress on QoS provisioning capabilities in the context of heterogeneous urban scenario with both macro and femtocells.

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Performance Enhancement of a FSO-based Hybrid SAC-OCDMA System Using Zero Cross Correlation Code

Atypical Presentation of Disseminated Zoster in a Patient with Rheumatoid Arthritis

Case Reports in Medicine, 2015

Patients with rheumatoid arthritis (RA) have 2-fold increased risk of herpes zoster. In literatur... more Patients with rheumatoid arthritis (RA) have 2-fold increased risk of herpes zoster. In literature, limited information exists about disseminated cutaneous zoster in RA patients. An 83-year-old African-American female with RA presented with generalized and widespread vesicular rash covering her entire body. Comorbidities include hypertension, type II diabetes, and dyslipidemia. Patient was on methotrexate 12.5 mg and was not receiving any corticosteroids, anti-TNF therapy, or other biological agents. The patient was afebrile (98 F) with no SIRS criteria. Multiple vesicular lesions were present covering patient’s entire body including face. Lesions were in different stages, some umbilicated with diameter of 2–7 cm. Many lesions have a rim of erythema with no discharge. On admission, patient was also pancytopenic with leukocyte count of 1.70 k/mm3. Biopsies of lesions were performed, which were positive for Varicella antigen. Subsequently, patient was started on Acyclovir. The patient...

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Design, testing and modelling of a novel robotic system for trans-oesophageal ultrasound

The international journal of medical robotics + computer assisted surgery : MRCAS, Jan 31, 2015

Trans-oesophageal echocardiography (TOE) has been widely utilized for cardiac disease diagnosis a... more Trans-oesophageal echocardiography (TOE) has been widely utilized for cardiac disease diagnosis and interventional procedure guidance. However, the TOE operator is required to manually manipulate the probe, often for long periods of time and sometimes in an X-ray environment where there is exposure to ionizing radiation. A novel robotic manipulation system for remote control of commercial TOE probes has been developed and tested. The system has four degrees of freedom (DOFs) and is characterized by a kinematic model. The accuracy of the model and the error propagation were analysed. The prototype system was shown to exhibit the required function in terms of the mechanical reliability and range of motion. The forward kinematic model can accurately predict the trajectory of the probe tip movement. The average point-to-point errors were 2.60 mm and 3.55°. Robotic assistance provided by the proposed system may improve the TOE operating environment. The proposed forward kinematic model c...

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Reported Prevalence and Risk Factors of Chronic Non Communicable Diseases Among Inmates of Old-Age Homes in Ipoh, Malaysia

Background: Chronic Non Communicable disease is one of the common causes to elderly morbidity and... more Background: Chronic Non Communicable disease is one of the common causes to elderly morbidity and mortality. This study was conducted to determine the prevalence and risk factors that contribute to chronic non communicable illness among elderly inmates of old age homes in Ipoh. Materials and Method: This is a cross sectional study and the sample size was calculated using the standard formula assuming the prevalence is 60% (as observed from previous research) and a worst acceptable prevalence as 50%. A total of 92 elderly respondents were interviewed to obtain the information on socioeconomic factors, lifestyle factors and morbidity. The data was analyzed using SPSS 17.0. Results: The mean age of the study participants was 73.79 years and majority were females (53.3%). Majority of the participants in our study was above 75 years of age. Hypertension (47.8%) was the highest prevalent chronic disease among the study participants followed by osteoarthritis (34.8%), diabetes mellitus (26...

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Knowledge, Attitude and Practice on Diabetes and Diabetes Care in a Rural Community in Malaysia

Background: Diabetes is a global public health challenge with high economic burden. Diabetes is i... more

Genetic mapping of a new race specific resistance allele effective to Puccinia hordei at the Rph9/Rph12locus on chromosome 5HL in barley

BMC Plant Biology, 2014

Background: Barley is an important cereal crop cultivated for malt and ruminant feed and in certa... more Background: Barley is an important cereal crop cultivated for malt and ruminant feed and in certain regions it is used for human consumption. It is vulnerable to numerous foliar diseases including barley leaf rust caused by the pathogen Puccinia hordei. Results: A temporarily designated resistance locus RphCantala (RphC) identified in the Australian Hordeum vulgare L. cultivar 'Cantala' displayed an intermediate to low infection type (";12 = N") against the P. hordei pathotype 253P-(virulent on Rph1, Rph2, Rph4, Rph6, Rph8 and RphQ). Phenotypic assessment of a 'CI 9214' (susceptible) x 'Stirling' (RphC) (CI 9214/Stirling) doubled haploid (DH) population at the seedling stage using P. hordei pathotype 253P-, confirmed that RphC was monogenically inherited. Marker-trait association analysis of RphC in the CI 9214/ Stirling DH population using 4,500 DArT-seq markers identified a highly significant (−log 10 Pvalue > 17) single peak on the long arm of chromosome 5H (5HL). Further tests of allelism determined that RphC was genetically independent of Rph3, Rph7, Rph11, Rph13 and Rph14, and was an allele of Rph12 (Rph9.z), which also maps to 5HL. Conclusion: Multipathotype tests and subsequent pedigree analysis determined that 14 related Australian barley varieties (including 'Stirling' and 'Cantala') carry RphC and that the likely source of this resistance is via a Czechoslovakian landrace LV-Kvasice-NA-Morave transferred through common ancestral cultivars 'Hanna' and 'Abed Binder'. RphC is an allele of Rph12 (Rph9.z) and is therefore designated Rph9.am. Bioinformatic analysis using sequence arrays from DArT-seq markers in linkage disequilibrium with Rph9.am identified possible candidates for further gene cloning efforts and marker development at the Rph9/Rph12/Rph9.am locus.

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A differential expansion holder for kovar parts

Journal of Physics E: Scientific Instruments, 1968

A holder for kovar parts used for glass-to-metal sealing is described, which makes use of the wid... more A holder for kovar parts used for glass-to-metal sealing is described, which makes use of the widely different coefficients of expansion of steel and brass to prevent the kovar part from becoming loose in the holder when the holder and the kovar part are heated up to quite high temperatures during glass sealing.

Role of tricalcium phosphate implant in bridging the large osteoperiosteal gaps in rabbits

Indian journal of experimental biology, 2013

Treatment options for large osteoperiosteal defects are limited and that which are available are ... more Treatment options for large osteoperiosteal defects are limited and that which are available are not ideal. Osteoperiosteal defect were created in ulnae of both forelimbs of rabbits and tricalcium phosphate implant was used to bridge the gap. Amongst the 35 implanted ulnae, one implant got dislodged. Rest of the implants showed good adherence to host bone until the final follow up. Five control rabbit limbs (in which no implants were put) showed persistent bone gap. Histological and Electron microscopic examination revealed bone tissues covering the surface of the implant and bridging the gap. New bone was formed in the pores also. Tricalcium phosphate implants showed new bone formation due to osteoconductive properties. They are biodegradable. It is suggested that tricalcium phosphate implants are viable treatment alternatives in management of large osteoperiosteal defects with minimal to no adverse effects.

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Wedgeless 'V' shaped distal femoral osteotomy with internal fixation for genu valgum in adolescents and young adults

Acta orthopaedica Belgica, 2014

The treatment of angular malalignment includes restoration of normal mechanical axis alignment an... more The treatment of angular malalignment includes restoration of normal mechanical axis alignment and joint orientation.The supracondylar wedgeless distal femoral 'V' osteotomy, as a treatment modality, is sparsely explored in the literature. This study was conducted at a tertiary level teaching referral hospital from October 2010 to September 2012. Forty six lower limbs (in 30 patients) were operated with a wedgeless…

Dielectric and structural properties of iron doped titanate nano-composites

2007 International Workshop on Physics of Semiconductor Devices, 2007

TiO2 has been used for gas sensing devices (Mohammadi et al., 2007) photo catalytic devices (Litt... more TiO2 has been used for gas sensing devices (Mohammadi et al., 2007) photo catalytic devices (Litter and Navio, 1996) and photoelectric devices (Levy, 1997). Recently the dielectric properties of TiO2 have been of great interest for applications in the telecommunications industry due to its unusual high dielectric constant and low dielectric loss. The use of layers of high dielectric constant

A graphite die for glass pressed-glass bases

Vacuum, 1969

RF brazing techniques for the assembly of vacuum tubes

Vacuum, 1968

Nonsynostotic Occipital Plagiocephaly: Radiographic Diagnosis of the ???Sticky Suture???

Plastic and Reconstructive Surgery, 2005

Background: While the clinical differences between nonsynostotic occipital plagiocephaly and lamb... more Background: While the clinical differences between nonsynostotic occipital plagiocephaly and lambdoid craniosynostosis have been described, the radiographic differentiation between the two remains obscure. The aim of this study was to characterize morphological differences in the lambdoid suture between nonsynostotic occipital plagiocephaly and lambdoid craniosynostosis. Methods: Computed tomography scans of children clinically diagnosed with nonsynostotic occipital plagiocephaly (n ϭ 26) were compared with computed tomography scans from children diagnosed with lambdoid craniosynostosis (n ϭ 7). Suture and cranial morphology, ear position, and endocranial base angles were qualitatively and quantitatively compared. Results: Nonsynostotic occipital plagiocephaly sutures demonstrated areas of focal fusion (25 percent), endocranial ridg-ing (78 percent), narrowing (59 percent), sclerosis (19 percent), and changes from overlapping to end-to-end orientation (100 percent). No sutures demonstrated ectocranial ridging. All cases of nonsynostotic occipital plagiocephaly presented with ipsilateral occipital flattening, 85 percent with ipsilateral frontal, and 95 percent with contralateral occipital bossing producing parallelogram morphology. In

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