http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Practical significance of plant growth-promoting rhizobacteria in sustainable agriculture: a review
Subhashini Wijeysingha,Buddhi C. Walpola,강윤구,윤민호,오택근 충남대학교 농업과학연구소 2023 Korean Journal of Agricultural Science Vol.50 No.4
Plant growth-promoting rhizobacteria (PGPR) are naturally occurring bacteria that intensively colonize plant roots and are crucial in promoting the crop growth. These beneficial microorganisms have garnered considerable attention as potential bio-inoculants for sustainable agriculture. PGPR directly interacts with plants by providing essential nutrients through nitrogen fixation and phosphate solubilization and accelerating the accessibility of other trace elements such as Cu, Zn, and Fe. Additionally, they produce plant growthpromoting phytohormones, such as indole acetic acids (IAA), indole butyric acids (IBA), gibberellins, and cytokinins.PGPR interacts with plants indirectly by protecting them from diseases and infections by producing antibiotics, siderophores, hydrogen cyanide, and fungal cell wall-degrading enzymes such as glucanases, chitinases, and proteases. Furthermore, PGPR protects plants against abiotic stresses such as drought and salinity by producing 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase and modulating plant stress markers. Bacteria belonging to genera such as Bacillus, Pseudomonas, Burkholderia, Pantoa, and Enterobacter exhibit multiple plant growth-promoting traits, that can enhance plant growth directly, indirectly, or through synergetic effects. This comprehensive review emphasizes how PGPR influences plant growth promotion and presents promising prospects for its application in sustainable agriculture.
Bubble dynamics and deformation of free liquid surface in aerated liquid storage tanks
Subhashini Raj Sarath,Janardanan Sarasamma Jayakumar 한국화학공학회 2021 Korean Journal of Chemical Engineering Vol.38 No.4
OpenFOAM was utilized for analyzing bubble behavior and deformation of free liquid surface due to bubble formation and bursting in a rectangular container. Influence of three system parameters, orifice diameter, number of orifices and spacing between orifices, on various bubble dynamics and deformation of gas-liquid interface is presented. The study also incorporates information on bubble formation, bubbling frequency, and orientation of bubbles. Considering different orifice spacing, bubbling synchronicity is also reported. Details regarding interaction of wakes during bubble coalescence for single, double and triple inlet orifices are presented. The deformation of free liquid surface due to bubble formation and bursting is quantified using a new parameter called deformation index (DL *). The analyses indicate that the frequency of bubble detachment is augmented with increase in orifice diameter and number of orifices. However, bubble detachment frequency is reduced when orifice spacing increased. Orientation of detached bubbles keeps on changing for larger orifice spacing. Results show that variations of these geometric parameters have substantial influence on free liquid surface deformation due to bubble bursting and other bubble behavior. Using results of these studies, one can develop a bubble-generating device for optimal performance.
Prattipati Subhashini Devi,Botcha Satyanarayana,Atluru Arundhati,Tamanam Raghava Rao 한국작물학회 2014 Journal of crop science and biotechnology Vol.17 No.1
The present study is an attempt to prepare synthetic seeds using alginate encapsulation of nodal explants of Sterculia urens. Regeneration potential of encapsulated nodal segments was tested on MS basal, MS + BA (3.0 mg L-1), MS + TDZ (0.2 mg L-1), andMS + BA (0.5 mg L-1) + NAA (2.0 mg L-1). The regeneration potential was maximum (73.33 ± 1.33) on MS + TDZ (0.2 mg L-1) followedby (69.33 ± 1.76) on MS + BA (3 mg L-1) even after 6 months of storage at 4°C, whereas controls did not show any regenerationpotential after 1 week. These findings suggest synthetic seed technology as an alternative method for micropropagation andgermplasm conservation of Sterculia urens an endangered species.
P. Subhashini Devi,B. Satyanarayana,A. Arundhati,T. Raghava Rao 한국산림과학회 2012 Forest Science And Technology Vol.8 No.1
Sterculia urens is a commercially important tree with wide applications. Although it reproduces by seed, its germination requirements are not known. The seed also suffers with dormancy. The present study is an attempt to understand the proper storage conditions and also the type of dormancy in seeds of Sterculia urens. The optimum temperature for storage of seeds was found to be 0–4℃ in a polythene bag which retained the required moisture content of seed for germination. The treatment with phytohormones showed maximum increase in germination percentage followed by acid and mechanical scarification, suggesting both physical and physiological dormancy in seeds of Sterculia urens.
Women’s Potential in Dealing with Natural Disasters : A Case Study from Sri Lanka
JAYARATHNE, Saranga Subhashini 이화여자대학교 아시아여성학센터 2014 Asian Journal of Women's Studies(AJWS) Vol.20 No.1
Disaster is gender indifferent but its impact is usually gender differentiated. The 2004 Tsunami statistics show that male survivors in Sri Lanka outnumbered female survivors. The notion of women being the “weaker sex” gives them limited space for learning physical skills that are deemed vital for surviving disasters. Their knowledge and experience regarding the environment is always undermined. This further limits and discourages them from contributing towards disaster management. Women should be incorporated at every level in the disaster management cycle. Women-centered public awareness and skills training can help increase women and children’s disaster preparedness and equip them with the skills necessary to overcome disasters. Women’s participation in national-level decision-making is also a necessity. A gender-blind disaster management system can only worsen the impact of disasters, especially for women and girls. This paper challenges the depiction of women as mere victims of disasters, while attempting to point out the vital nexus between women’s untapped potential and disaster management.
Devi, Prattipati Subhashini,Satyanarayana, Botcha,Arundhati, Atluru,Rao, Tamanam Raghava 한국작물학회 2014 Journal of crop science and biotechnology Vol.17 No.1
The present study is an attempt to prepare synthetic seeds using alginate encapsulation of nodal explants of Sterculia urens. Regeneration potential of encapsulated nodal segments was tested on MS basal, MS + BA ($3.0mg\;L^{-1}$), MS + TDZ ($0.2mg\;L^{-1}$), and MS + BA ($0.5mg\;L^{-1}$) + NAA ($2.0mg\;L^{-1}$). The regeneration potential was maximum ($73.33{\pm}1.33$) on MS + TDZ ($0.2mg\;L^{-1}$) followed by ($69.33{\pm}1.76$) on MS + BA ($3mg\;L^{-1}$) even after 6 months of storage at $4^{\circ}C$, whereas controls did not show any regeneration potential after 1 week. These findings suggest synthetic seed technology as an alternative method for micropropagation and germplasm conservation of Sterculia urens an endangered species.
G. V. R. BABU,P. Subhashini,P. D. Sailaja 장전수학회 2013 Advanced Studies in Contemporary Mathematics Vol.23 No.3
The purpose of this paper is to extend the fixed point results of maps satisfying weak contractivity condition introduced by Bhaskar and Lakshmikantam [T. Gnana Bhaskar and V. Lakshmikantham, Fixed point theorem in partially ordered metric spaces and applications, Non-linear Analysis, 65 (2006), 1379-1393] to the case of contractions with rational expressions in partially ordered metric spaces. Examples are provided in support of our results. Our theorems generalize the results of Bhaskar and Lakshmikantam [2].
Ototoxicity: A Challenge in Diagnosis and Treatment
Purushothaman Ganesan,Jason Schmiedge,Vinaya Manchaiah,Simham Swapna,Subhashini Dhandayutham,Purushothaman Pavanjur Kothandaraman 대한청각학회 2018 Journal of Audiology & Otology Vol.22 No.2
Ototoxicity is the pharmacological adverse reaction affecting the inner ear or auditory nerve,characterized by cochlear or vestibular dysfunction. The panorama of drug-induced hearingloss has widened over last few decades. Although ototoxic medications play an imperativerole in modern medicine, they have the capacity to cause harm and lead to significant morbidity. Evidence has shown early detection of toxicity through prospective ototoxicity monitoringallows for consideration of treatment modifications to minimize or prevent permanenthearing loss and balance impairment. Although many ototoxicity monitoring protocols exist,their practicality is questionable due to several factors. Even though the existing protocolshave proven to be effective, certain lacunae in practice have been encountered due to discrepanciesamong recommended protocols. Implementation of these protocols is mostlyheld back due to the incapacitated status of the patient. The choice of early ototoxicity identificationtechniques is still debatable due to variables such as high degree of sensitivity,specificity and reliability, less time consumption and less labour-intensive to the patient. Hence, the diagnosis and effective treatment of ototoxicity is challenging, even today. A stringentprotocol with more practicality encompassing all elements aimed at profiling the effectsof ototoxicity is greatly needed. This review describes an efficient application of ototoxicitymonitoring and treatment protocol as an attempt to reduce the challenges in diagnosis andmanagement of ototoxicity.
Isaac, Rita,Finkel, Madelon,Olver, Ian,Annie, I.K.,Prashanth, H.R.,Subhashini, J.,Viswanathan, P.N.,Trevena, Lyndal J. Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.8
Background: The majority of women in rural India have poor or no access to cervical cancer screening services, although one.quarter of all cervical cancers in the world occur there. Several large trials have proven the efficacy of low-tech cervical cancer screening methods in the Indian context but none have documented the necessary components and processes of implementing this evidence in a low-resource setting. Methods: This paper discusses a feasible model of implementation of cervical cancer screening programme in low-resource settings developed through a pilot research project carried out in rural Tamilnadu, India. The programme used visual inspection of cervix after acetic acid application (VIA) as a screening tool, nurses in the primary care centres as the primary screeners and peer educators within Self-Help Women groups to raise community awareness. Results: The uptake of screening was initially low despite the access to a screening programme. However, the programme witnessed an incremental increase in the number of women accessing screening with increasing community awareness. Conclusions: The investigators recommend 4 key components to programme implementation in low-resource setting: 1) Evidence-based, cost-effective test and treatment available within the reach of the community; 2) Appropriate referral pathways; 3) Skilled health workers and necessary equipment; and 4) Optimisation of health literacy, beliefs, attitudes of the community.