Scientific Research and Essays

  • Abbreviation: Sci. Res. Essays
  • Language: English
  • ISSN: 1992-2248
  • DOI: 10.5897/SRE
  • Start Year: 2006
  • Published Articles: 2763

Table of Content: 4 January, 2013; 8(1)

January 2013

A particular matrix and its some properties

In this study, firstly we define the matrix , where  and  â„ (ℝ denotes the set of real numbers). Then we study some its properties.   Key words: Euclidean norm, determinant, inverse, Hadamard inverse.

Author(s): Süleyman Solak and Mustafa Bahsi

January 2013

Bioclimatic analysis of Iranian climate for energy conservation in architecture

In order to design energy conscious buildings we need to know the climate of each country. In this study a bioclimatic analysis of Iranian climate had been done. Iran is a large country with different kinds of climate and basically includes four different climatic regions such as temperate-humid in southern shores of Caspian Sea, hot-humid in northern shores of Persian Gulf and Oman Sea, very cold and long winter...

Author(s): Parastoo Pourvahidi and Mesut B. Ozdeniz

January 2013

Hematological assessments of sericin-derived oligopeptides in BALB/c mice

Sericin, a protein removed from the silk cocoons, possesses various biological activities. Due to less solubility, utilization of the sericin protein may be limited. Enzymatic hydrolysates of this protein would thus, provide an alternative. Since safety assessment is required before any protein hydrolysates being used, the effects of sericin-derived oligopeptides (SP) on some hematological parameters were evaluated....

Author(s): Sirirat Bunarsa, Porkaew Promphet, Manote Sutheerawattananonda and Duangkamol Kunthalert

January 2013

Alteration of lymphocyte subpopulations in mice fed lutein from marigold extract

Lutein, a member of the xanthophyll carotenoids, has a wide variety of health benefits. These include prevention of age-related macular degeneration or cataracts and protection of ultraviolet -induced skin damage. Lutein also possesses anti-tumor and immune modulatory activities in BALB/c mice.  However, in such animal model, the effects of lutein on lymphocyte subpopulations have not yet been assessed...

Author(s): Porkaew Promphet, Sirirat Bunarsa, Manote Sutheerawattananonda, Anupan Kongbangkerd and Duangkamol Kunthalert

January 2013

Induction of cholangiocarcinoma cells apoptosis by an andrographolide analog

Cholangiocarcinoma (CCA) is a malignant tumor derived from bile duct epithelial cells that has high incidence in the Northeastern area of Thailand. It is associated with the infection of liver fluke (Opisthorchis viverrini). Chemotherapeutic treatment of CCA is often ineffective due to its resistance to drugs. Therefore, new effective agents for treatment of CCA are urgently required. RSPP 050 analog is a modified...

Author(s): Narumol Bhummaphan, Jintapat Nateewattana, Kanoknetr Suksen, Rungnapha Saeeng, and Arthit Chairoungdua,

January 2013

Preparation of nanocrystalline strontium titanate (SrTiO3) powder by sol-gel combustion method

Nanocrystalline strontium titanate (SrTiO3, ST) powders were prepared by sol-gel combustion method. The influence of fuel content ratio (ratio of citric acid (CA) and total metal nitrate (MN); Ra = CA:MN) and calcination temperature were investigated on the structure, morphology, and crystallite size by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results indicate that the Ra ratio of 3:1 is...

Author(s): Thanawat Klaytae, Piram Panthong and Sarawut Thountom,

January 2013

Natural partial order on a semi group of self-E-preserving transformations

Let T(X) denote the full transformation semigroup on a set X. For an arbitrary equivalence relation E on X, we consider a sub semi-group of T(X) defined by: TSE(X)={α∈T(X):(x,xα)∈E for each x∈X} which is called the self-E-preserving transformation semi-group on X. In this paper, we discussed a natural partial order on TSE (X) and...

Author(s): Chaiwat Namnak and Ekkachai Laysirikul

January 2013

Riboflavin production by Candida tropicalis isolated from seawater

Screening of Candida spp. capable of riboflavin production from seawater samples in Chonburi province was conducted. Total of 47 isolates were identified asCandida tropicalis and Candida krusei with similar percentages of distribution. Among those identified isolates, only two of C. tropicalis, MICBUU002 and MICBUU019, were found to be able to produce riboflavin with...

Author(s): Patcharanan Amornrattanapan