University–industry collaboration and technological innovation: sequential mediation of knowledge transfer and barriers in automotive and biotechnology firms in Malaysia

Hema Subramonian,Rajah Rasiah 기술경영경제학회 2016 ASIAN JOURNAL OF TECHNOLOGY INNOVATION Vol.24 No.1

Technological Innovation (TI) is a critical outcome of innovation systems. Previous studieshave investigated the drivers of university –industry (U – I) collaborations without looking atrelationships and their influencing factors. This paper fills this gap by examining U – I linksin the automotive and biotechnology sectors in Malaysia. The exercise produced three keyresults. Firstly, there was a significant but negative association between perceived importanceof universities and firm-level TI, which indicates that firms have used universities inMalaysia less than their perceived importance. Secondly, the results demonstrate that thesequential effect of knowledge transfer (KT) channels and perceived barriers fully mediatethe relationship between universities and TI. Firms that regard universities as important toTI also placed emphasis on KT channels and barriers. While professional recognition andadvancement depend on being first to disclose and publish research results, industrialinnovation relies heavily on secrecy. Thirdly, the perceived importance of universities whenviewed together with KT channels and perceived barriers, explains and predicts firm-levelTI, which was significantly different in the two sectors. Furthermore, automotive firmsreported higher perceived importance of universities than biotechnology firms in research,teaching, and entrepreneurship.

Fungicide Sensitivity among Isolates of Colletotrichum truncatum and Fusarium incarnatum-equiseti Species Complex Infecting Bell Pepper in Trinidad

Hema Ramdial,Kathryn De Abreu,Sephra N. Rampersad 한국식물병리학회 2017 Plant Pathology Journal Vol.33 No.2

Bell pepper is an economically important crop worldwide;however, production is restricted by a numberof fungal diseases that cause significant yield loss. Chemical control is the most common approach adoptedby growers to manage a number of these diseases. Monitoring for the development to resistance tofungicides in pathogenic fungal populations is centralto devising integrated pest management strategies. Two fungal species, Fusarium incarnatum-equiseti speciescomplex (FIESC) and Colletotrichum truncatumare important pathogens of bell pepper in Trinidad. This study was carried out to determine the sensitivityof 71 isolates belonging to these two fungal species tofungicides with different modes of action based on invitro bioassays. There was no significant difference inlog effective concentration required to achieve 50%colony growth inhibition (LogEC50) values when fieldlocation and fungicide were considered for each speciesseparately based on ANOVA analyses. However,the LogEC50 value for the Aranguez-Antracol locationfungicidecombination was almost twice the valuefor the Maloney/Macoya-Antracol location-fungicidecombination regardless of fungal species. LogEC50values for Benomyl fungicide was also higher for C. truncatum isolates than for FIESC isolates and for anyother fungicide. Cropping practices in these locationsmay explain the fungicide sensitivity data obtained.

THE IMPACT OF TOP MANAGEMENT TEAM CHARACTERISTICS ON CORPORATE REFOCUSING IN U.S. FIRMS

Hema A Krishnan,Dae woo Park People&Global Business Association 2001 Global Business and Finance Review Vol.6 No.2

Refocusing was one of the major strategies pursued by large U.S. organizations in the late 1980s and early 1990s. Our study extends the studies of previous research in the upper echelons field by examining the relationship between top management team (TMT) traits and corporate refocusing. Our results reveal that higher average age is positively related to two measures of refocusing, namely, downsizing and change in core business. Organizational tenure is negatively related to change in core business, and mean educational level is positively related to change in core business. There was no relationship between these demographic traits and productivity, the third measure of refocusing.

Primitive Ideals of Semigroup Graded Rings

Hema Gopalakrishnan 경북대학교 자연과학대학 수학과 2004 Kyungpook mathematical journal Vol.44 No.4

Prime ideals of strong semigroup graded rings have been characterized by Bell, Stalder and Teply for some important classes of semigroups. The prime ideals correspond to certain families of ideals of the component rings called prime families. In this paper,we define the notion of a primitive family and show that primitive ideals of such rings correspond to primitive families of ideals of the component rings.

Crosscutting Concern Domain Library Listing Composition for Early Aspect Discovery

Hema Subramaniam,Hazura Zulzalil,Marzanah A.Jabar,Saadah Hassan 보안공학연구지원센터 2014 International Journal of Software Engineering and Vol.8 No.8

Evaluation of Unrefined Glycerine Pitch as an Efficient Renewable Carbon Resource for the Biosynthesis of Novel Yellow-pigmented P(3HB-co-4HB) Copolymer Towards Green Technology

Hema Ramachandran,A. A. Amirul 한국생물공학회 2013 Biotechnology and Bioprocess Engineering Vol.18 No.6

Discharging the unrefined glycerine, a by-productfrom biodiesel production is the simplistic solution adoptedfor its management which has led to its price reduction inthe market worldwide and created serious environmentalimpact. Therefore, we have explored the application ofunrefined glycerine pitch as direct fermentative substratein the biosynthesis of novel yellow-pigmented poly(3-hydroxybutyrate-co-4-hydroxybutyrate) [P(3HB-co-4HB)]copolymer by Cupriavidus sp. USMAHM13 through onestagecultivation. Utilization of glycerine pitch (10 g/L)together with 1,4-butanediol (5 g/L) had resulted in thehighest achievement of 2.91 g/L of P(3HB-co-40%4HB)copolymer which was naturally dyed with the yellowpigment through the co-extraction process. Enhancementof 4HB monomer accumulation was also attained throughthe addition of ammonium acetate as nitrogen source. Itwas revealed that utilization of recovered crude glycerinefrom glycerine pitch was more preferred compared to theother recovered components. Utilization of glycerine pitchin the biosynthesis of P(3HB-co-4HB) copolymer wouldnot only contribute to the efficient waste management butalso would promote the development of cost-efficiencymicrobial fermentation.

Effect of VO(II) Doping on Structural and Optical Properties of Diaquamalonato(1,10-phenanthroline)zinc(II)

Hema, Ramesh,Parthipan, Krishnan,Ramachitra, Somasundaram,Balaji, Subramanian Korean Chemical Society 2013 Bulletin of the Korean Chemical Society Vol.34 No.12

Single crystal EPR and optical studies of a mixed ligand zinc(II) complex doped with VO(II) ion is carried out to establish the structural properties. The angular variation of vanadyl hyperfine lines indicates a single site, with spin Hamiltonian parameters as: $g_{xx}=1.985$, $g_{yy}=1.979$, $g_{zz}=1.943$; $A_{xx}=8.71$, $A_{yy}=6.41$ and $A_{zz}=17.80$ mT. By comparing the direction cosines of principal g and A values with the direction cosines of metalligand bonds, it has been confirmed that the vanadyl ion has entered the lattice interstitially. The exact interstitial position of VO(II) in host lattice has been calculated using the fractional coordinates of atoms in the host lattice out of many assumptions. The EPR and optical data have been confirmed to obtain various bonding parameters, from which the nature of the bonding in the complex is discussed. FT-IR confirms the formation of structure of host lattice.

One cycle controlled three input three output DC to DC converter

P. Hema Rani,Arun Kumar Behera,Syam S. Sundar,Saly George,S. Ashok 전력전자학회 2022 JOURNAL OF POWER ELECTRONICS Vol.22 No.1

A single renewable source is insufficient for providing a reliable and continuous power supply. The multi-input DC to DC converter (MIDC) provides for the hybridization of different energy sources with a single output. Various grid voltages exist and different applications require different DC voltages. If the MIDC provides multiple outputs, it becomes a multi-input multi-output (MIMO) converter. In this paper, a triple input triple output (TITO) DC–DC buck-boost converter is proposed for voltage regulation and power management. It combines the feature of multi-input and multi-output. The proposed converter consists of only one inductor, which reduces the number of active elements. A control circuit with a one-cycle control strategy is proposed to achieve this objective. A fixed ratio power management strategy is proposed for power management. The rising edge synchronization PWM method is realized as a suitable switching strategy for the converter. To design the compensator for the converter control system, a small signal model of the converter is developed. A PI controller is used to regulate the output voltage and the one cycle control (OCC) technique is used for current control. The operating characteristics of the proposed converters are validated by hardware results obtained from an Opal-RT real-time simulator.

The U.S. Contagion Effects on Foreign Direct Investment Flows in Developing Countries

Itsarawadee HEMA,Rossarin OSATHANUNKUL 한국유통과학회 2021 The Journal of Asian Finance, Economics and Busine Vol.8 No.4

This study aims to measure the lower tail dependence as risk contagion from the U.S. economy to 18 developing countries affecting FDI inflows using time-series data from 2005 to 2019. Firstly, we utilize four dynamic copula models, namely, Student-t, Clayton, rotated survival Gumbel, and rotated survival Joe, to measure the tail dependence structure between the U.S. and each developing country’s real GDP growth. Secondly, we use the regression model to explore the contagion effects on FDI inflows. The results show that there is evidence of the tail dependence between the U.S and developing economies, indicating the presence of the contagion effects. Primarily, we observe that the degree of contagion effects of the global financial crisis varies across countries; a strong impact is observed in Chinese, South African, Russian, Colombian, and Mexican economic growth. Furthermore, we found significant contagion risk affecting FDI inflows positively in China, Indonesia, Columbia, Morocco, and negatively in the Philippines, Bulgaria, and South Africa. This study demonstrates the usefulness of the copulas model in terms of examining contagion. Our findings shed light on the influence of sound policies and regulations to cope with both positive and negative consequences of the contagion on the capital movement.

Fungicide Sensitivity among Isolates of Colletotrichum truncatum and Fusarium incarnatum-equiseti Species Complex Infecting Bell Pepper in Trinidad

Ramdial, Hema,Abreu, Kathryn De,Rampersad, Sephra N. The Korean Society of Plant Pathology 2017 Plant Pathology Journal Vol.33 No.2

Bell pepper is an economically important crop worldwide; however, production is restricted by a number of fungal diseases that cause significant yield loss. Chemical control is the most common approach adopted by growers to manage a number of these diseases. Monitoring for the development to resistance to fungicides in pathogenic fungal populations is central to devising integrated pest management strategies. Two fungal species, Fusarium incarnatum-equiseti species complex (FIESC) and Colletotrichum truncatum are important pathogens of bell pepper in Trinidad. This study was carried out to determine the sensitivity of 71 isolates belonging to these two fungal species to fungicides with different modes of action based on in vitro bioassays. There was no significant difference in log effective concentration required to achieve 50% colony growth inhibition ($LogEC_{50}$) values when field location and fungicide were considered for each species separately based on ANOVA analyses. However, the $LogEC_{50}$ value for the Aranguez-Antracol locationfungicide combination was almost twice the value for the Maloney/Macoya-Antracol location-fungicide combination regardless of fungal species. $LogEC_{50}$ values for Benomyl fungicide was also higher for C. truncatum isolates than for FIESC isolates and for any other fungicide. Cropping practices in these locations may explain the fungicide sensitivity data obtained.