scholarly journals Reducing the Porosity and Sealing Cracks by Using Crystalline Admixture in Conventional Concrete

2018 ◽  
Vol 6 (3) ◽  
pp. 1-11
Author(s):  
Visar Krelani ◽  
Liberato Ferrara

There is a continuous increase of quality on civil engineering materials in developed countries and parallel increase of need for new constructions in developing countries. Professional community should propose solutions for the durability that can resist in different severe environments. The most important factor that can affect concrete durability is represented by the pore distribution. Transport properties can take place through the porous network inside the cementitious composites and the aggregates interface, permitting the ingress of aggressive agents damaging concrete function intrinsically as a material and the wellfunctioning of the entire structure. The use of a crystalline admixture during the mixing procedure can fill the pores and capillarity of the cement composites, while in case of the appearance of the cracks, can perform as sealing agent, representing a secondary innovative benefit. Concrete structure, in this case will be more durable and there will be no need for unplanned intervention.

2011 ◽  
Vol 81 (4) ◽  
pp. 238-239 ◽  
Author(s):  
Manfred Eggersdorfer ◽  
Paul Walter

Nutrition is important for human health in all stages of life - from conception to old age. Today we know much more about the molecular basis of nutrition. Most importantly, we have learnt that micronutrients, among other factors, interact with genes, and new science is increasingly providing more tools to clarify this interrelation between health and nutrition. Sufficient intake of vitamins is essential to achieve maximum health benefit. It is well established that in developing countries, millions of people still suffer from micronutrient deficiencies. However, it is far less recognized that we face micronutrient insufficiencies also in developed countries.


1995 ◽  
Vol 34 (4III) ◽  
pp. 1025-1039 ◽  
Author(s):  
Yasmeen Mohiuddln

The purpose of the present paper is to formulate a composite index of the status of women and to rank both developed and developing countries on the basis of that index. This index is presented as an alternative or complement to the current status of women index, published by the Population Crisis Committee (PCC) and used by the World Bank and the United Nations, which focuses on indicators measuring health, education, employment, marriage and childbearing, and social equality. The paper argues that these indicators have a poverty-bias and measure women's status in terms of structural change rather than in terms of their welfare vis-ii-vis men. The PCC index is also based on the implicit assumption that women's status in developing countries ought to be defined in a similar way as in developed countries, thus including primarily only those indicators which are more relevant for developed countries. To remedy these defects, the paper presents an alternative composite index, hereafter labelled the Alternative Composite (AC) index, based on many more indicators reflecting women's issues in both developed and developing countries. The results of the statistical analysis show that the ranking of countries based on the AC index is significantly different from the PCC index.


1970 ◽  
Vol 10 (4) ◽  
pp. 469-490
Author(s):  
Nurul Islam

Foreign economic aid is at the cross-roads. There is an atmosphere of gloom and disenchantment surrounding international aid in both the developed and developing countries — more so in the former than in the latter. Doubts have grown in the developed countries, especially among the conservatives in these countries, as to the effectiveness of aid in promoting economic development, the wastes and inefficiency involved in the use of aid, the adequacy of self-help on the part of the recipient countries in husbanding and mobilising their own resources for development and the dangers of getting involved, through ex¬tensive foreign-aid operations, in military or diplomatic conflicts. The waning of confidence on the part of the donors in the rationale of foreign aid has been accentuated by an increasing concern with their domestic problems as well as by the occurrence of armed conflicts among the poor, aid-recipient countries strengthened by substantial defence expenditure that diverts resources away from development. The disenchantment on the part of the recipient countries is, on the other hand, associated with the inadequacy of aid, the stop-go nature of its flow in many cases, and the intrusion of noneconomic considerations governing the allocation of aid amongst the recipient countries. There is a reaction in the developing countries against the dependence, political and eco¬nomic, which heavy reliance on foreign aid generates. The threat of the in¬creasing burden of debt-service charge haunts the developing world and brings them back to the donors for renewed assistance and/or debt rescheduling.


2020 ◽  
Author(s):  
endang naryono

Covid-19 or the corona virus is a virus that has become a disaster and a global humanitarian disaster began in December 2019 in Wuhan province in China, April 2020 the spread of the corona virus has spread throughout the world making the greatest humanitarian disaster in the history of human civilization after the war world II, Already tens of thousands of people have died, millions of people have been infected with the conona virus from poor countries, developing countries to developed countries overwhelmed by this virus outbreak. Increasingly, the spread follows a series of measurements while patients who recover recover from a series of counts so that this epidemic becomes a very frightening disaster plus there is no drug or vaccine for this corona virus yet found, so that all countries implement strategies to reduce this spread from social distancing, phycal distancing to with a city or country lockdown.


2010 ◽  
Vol 27 (4) ◽  
pp. 23-44
Author(s):  
Ruzita Mohd. Amin

The World Trade Organization (WTO), established on 1 January 1995 as a successor to the General Agreement on Tariffs and Trade (GATT), has played an important role in promoting global free trade. The implementation of its agreements, however, has not been smooth and easy. In fact this has been particularly difficult for developing countries, since they are expected to be on a level playing field with the developed countries. After more than a decade of existence, it is worth looking at the WTO’s impact on developing countries, particularly Muslim countries. This paper focuses mainly on the performance of merchandise trade of Muslim countries after they joined the WTO. I first analyze their participation in world merchandise trade and highlight their trade characteristics in general. This is then followed by a short discussion on the implications of WTO agreements on Muslim countries and some recommendations on how to face this challenge.


2019 ◽  
Vol 5 (3) ◽  
pp. 266-271
Author(s):  
Andre Lamy ◽  
Eva Lonn ◽  
Wesley Tong ◽  
Balakumar Swaminathan ◽  
Hyejung Jung ◽  
...  

Abstract Aims The Heart Outcomes Prevention Evaluation-3 (HOPE-3) found that rosuvastatin alone or with candesartan and hydrochlorothiazide (HCT) (in a subgroup with hypertension) significantly lowered cardiovascular events compared with placebo in 12 705 individuals from 21 countries at intermediate risk and without cardiovascular disease. We assessed the costs implications of implementation in primary prevention in countries at different economic levels. Methods and results Hospitalizations, procedures, study and non-study medications were documented. We applied country-specific costs to the healthcare resources consumed for each patient. We calculated the average cost per patient in US dollars for the duration of the study (5.6 years). Sensitivity analyses were also performed with cheapest equivalent substitutes. The combination of rosuvastatin with candesartan/HCT reduced total costs and was a cost-saving strategy in United States, Canada, Europe, and Australia. In contrast, the treatments were more expensive in developing countries even when cheapest equivalent substitutes were used. After adjustment for gross domestic product (GDP), the costs of cheapest equivalent substitutes in proportion to the health care costs were higher in developing countries in comparison to developed countries. Conclusion Rosuvastatin and candesartan/HCT in primary prevention is a cost-saving approach in developed countries, but not in developing countries as both drugs and their cheapest equivalent substitutes are relatively more expensive despite adjustment by GDP. Reductions in costs of these drugs in developing countries are essential to make statins and blood pressure lowering drugs affordable and ensure their use. Clinical trial registration HOPE-3 ClinicalTrials.gov number, NCT00468923.


2021 ◽  
Vol 26 (3) ◽  
pp. 205-210
Author(s):  
Simone Borghesi

AbstractThe present article describes the main insights deriving from the papers collected in this special issue which jointly provide a ‘room with a view’ on some of the most relevant issues in climate policy such as: the role of uncertainty, the distributional implications of climate change, the drivers and applications of decarbonizing innovation, the role of emissions trading and its interactions with companion policies. While looking at different issues and from different angles, all papers share a similar attention to policy aspects and implications, especially in developing countries. This is particularly important to evaluate whether and to what extent the climate policies adopted thus far in developed countries can be replicated in emerging economies.


2013 ◽  
Vol 7 ◽  
pp. SART.S8108 ◽  
Author(s):  
Kristin V. Carson ◽  
Malcolm P. Brinn ◽  
Thomas A. Robertson ◽  
Rachada To-A-Nan ◽  
Adrian J. Esterman ◽  
...  

Tobacco smoking remains the single most preventable cause of morbidity and mortality in developed countries and poses a significant threat across developing countries where tobacco use prevalence is increasing. Nicotine dependence is a chronic disease often requiring multiple attempts to quit; repeated interventions with pharmacotherapeutic aids have become more popular as part of cessation therapies. First-line medications of known efficacy in the general population include varenicline tartrate, bupropion hydrochloride, nicotine replacement therapy products, or a combination thereof. However, less is known about the use of these products in marginalized groups such as the indigenous, those with mental illnesses, youth, and pregnant or breastfeeding women. Despite the efficacy and safety of these first line pharmacotherapies, many smokers continue to relapse and alternative pharmacotherapies and cessation options are required. Thus, the aim of this review is to summarize the existing and developing pharmacotherapeutic and other options for smoking cessation, to identify gaps in current clinical practice, and to provide recommendations for future evaluations and research.


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