Under abiotic

Xem 1-20 trên 79 kết quả Under abiotic
  • Basic helix-loop-helix (bHLH) transcription factors are one of the most important transcription factors involved in abiotic stress tolerance in Tartary buckwheat. In this study, we successfully isolated two bHLH transcription factor genes, designated as FtbHLH1 and FtbHLH2, from Tartary buckwheat.

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  • Antioxidant enzymes play a protective role in plants under oxidative stress. The present study explores the role of antioxidant system heme oxygenase1 (HO1) in Brassica juncea (L.) Czern. in salt stress conditions. B. juncea seedlings were treated with different NaCl concentrations (0–200 mM) for 5 days.

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  • Proline (Pro) accumulation is a common response of several plant species to combat abiotic stresses. Under stress conditions, Pro acts as an excellent compatible solute in the plant system, participating in the alleviation of stress sensitivity.

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  • Cold stress is a major environmental factor in plant life cycles. Nicotiana benthamiana, which belongs to the family Solanaceae, is one of the most commonly used model species in plant–microbe interaction studies. This study will also be a valuable resource for crop improvement studies under abiotic stress conditions for Nicotiana plants.

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  • Difficulty in addressing contamination in low permeability soils may be alleviated to some degree by controlled pneumatic or hydraulic fracturing of the soil. However, engineered hydraulic fractures generally cannot be spaced more closely than about 5 feet, which means that chemical oxidants must still penetrate a substantial thickness of low permeability soil to come into contact with the contamination. Deep soil mixing with large diameter drill augers is the most effective method currently available to increase contact between adsorbed contaminants and the oxidants.

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  • Dynamicity of participants: Some P2P systems, such as [10], assume a fixed set of nodes in the system. However, one of the greatest potential strengths of P2P systems is when they eschew reliance on dedicated infrastructure and allow peers to leave the system at will. Even under these conditions, participants typically have broadly varying availability characteristics. Some peers are akin to servers: their membership in the system stays largely static. Others have much more dynamic membership, joining and leaving the system at will.

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  • Lenne, 1996) and to decrease damage by pests and pathogens (Cantelo & Sanford, 1984). In some crops (e.g. rice) this is applied on a large scale to maximize yield by minimizing damage by pathogens (Zhu et al., 2000). Information on genetic diversity and population structure also assists plant breeding in the selection of parents for crossing, providing a more rational basis for expanding the gene pool, and for identifying materials that harbor genes of value for plant improvement.

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  • Carbon offsets are an innovative tool for allowing companies and individuals to reduce greenhouse gas emissions beyond what they can easily achieve on their own. In the past two years, interest in carbon offsets has grown dramatically as companies and concerned consumers have sought ways to help mitigate climate change. However, the global market for voluntary carbon offsets is currently unregulated, which has led to growing concerns about whether buyers are really getting what they are paying for.

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  • In the Arab Region, digital migration is still in its very early years, but nevertheless is being driven by the high proportion of young demographic in many Arab countries. With 55% of the Arab Region population under the age of 252 , this segment is expected to drive the growth of digital media. Since international players have been experimenting with online content and business models for some time, the Arab Region now has the opportunity to learn from the mistakes and successes of the European, North American and Asian media markets to really drive growth....

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  • The annual agriculture appropriations bill traditionally makes two separate appropriations for the federal crop insurance program. It provides discretionary funding for the salaries and expenses of the RMA. It also provides “such sums as are necessary” for the Federal Crop Insurance Fund, which finances all other expenses of the program, including premium subsidies, indemnity payments, and reimbursements to the private insurance companies. Government costs for crop insurance have increased substantially in recent years. After ranging between $2.1 and $3.

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  • The SRA also defines risk-sharing between the government and private insurance companies. Under the SRA, insurance companies may transfer some liability associated with riskier policies to the government and retain profits/losses from less risky policies. 17 This transfer of risk is accomplished through a set of reinsurance funds maintained by FCIC. Within 30 days of the sales closing dates for each crop, companies allocate each policy they sell to one of two funds that are maintained for each company by state: Assigned Risk or Commercial. (The previous SRA had three funds.

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  • The final risk-sharing component of the SRA is the “net book quota share,” defined as the proportion of a company’s overall gain or loss over its entire “book of business” that is ceded to the government after all other reinsurance provisions in the SRA have been applied. Under the SRA, companies must cede a 6.5% share of their cumulative underwriting gains/losses to the government. During years in which there are underwriting gains, 1.5% of this share is distributed back to companies that sell and service policyholders in 17 underserved states.

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  • Notwithstanding that the AIFM must be able to provide both functions in order to be authorised, it may choose to delegate the portfolio management and/or the risk management function. In such cas- es, and as set out above, the delegation of these functions should comply with the rules set out under Article 20 of the AIFMD and the relevant Level 2 measures. Therefore, the liability of the AIFM will not be affected by the fact that the AIFM has delegated the portfolio management and/or risk man- agement functions to a third party, or by any further sub-delegation.

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  • The concept of aesthetic labour is partly seen from the perspective of ethics. There may be strictly applied selection criteria for the recruitment and selection of new employees. For an appointments panel such a situation could cause conflict between organisational requirements and personal private views on what is moral or fair. The ethical problem concerns the Human Resource manager, who wishes to appoint someone, but who needs professional reasons for appointing a less attractive person.

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  • In 1992, the first United Nations Conference on Sustainable Development, popularly known as the Rio Earth Summit, was convened in Rio de Janeiro, Brazil to address the state of the environment and sustainable development. The Earth Summit yielded several important agreements including “Agenda 21”, a plan of action adopted by over 178 governments to address human impacts on the environment at local, national and global levels, and key treaties on climate change, desertification and biodiversity.

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  • Building engineering physics emerged during the latter part of the 20th Century, at the interface between three disciplines: building services engineering, applied physics and building construction engineering. Building services engineering is the design of mechanical and electrical systems to maintain internal environmental conditions that enable occupants to be comfortable and achieve their maximum performance potential.

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  • Prior to the 2010 renegotiation of the SRA, some observers argued that the reimbursement rate should be pegged to something other than premium value, such as the number of policies sold, to better reflect actual costs and to help reduce federal expenditures. If premiums are actuarially sound, the administrative costs of writing a policy are likely not proportional to the value of the policy (e.g., whether 10 acres or 1,000 acres, or $3 per bushel or $9 per bushel).

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  • The treaty, called the Stockholm Convention on Persistent Organic Pollutants, is a major achievement. It starts by immediately targeting 12 particularly toxic POPs for reduc- tion and eventual elimination. More importantly, it sets up a system for tackling additional chemicals identified as unacceptably hazardous. It recognizes that a special effort may sometimes be needed to phase out certain chemicals for certain uses and seeks to ensure that this effort is made. It also channels resources into cleaning up the existing stockpiles and dumps of POPs that litter the world’s landscape.

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  • The generation of the list of industry sources was based on an analysis of toxic pollutants found at the source sites and a projection of their related human health impacts. The list sets out the most significant industry sectors based on these toxic pollutants, ranked by estimated health impacts. A short discussion of some of the major pollutants found at the sites is presented below, included is a description of the toxic pollutant and a discussion of its uses and health impacts.

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  • The level of corporate profits increased in FY 2011, but at a slower pace than in the previous fiscal year. Federal spending grew and tax receipts increased in FY 2011, which resulted in the Federal unified budget deficit remaining essentially flat at $1.3 trillion. However, the deficit narrowed as a share of GDP to 8.7 percent from 9.0 percent in FY 2010. The economy continued to receive significant support during the fiscal year by a wide variety of measures implemented under the American Recovery and Reinvestment Act of 2009 (Recovery Act or ARRA). It was also...

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