Search Results - (Author, Cooperation:S. Ibrahim)

2018-01-19

American Chemical Society (ACS)

0022-3263

1520-6904

Chemistry and Pharmacology

2018-03-24

Institute of Physics (IOP)

1755-1307

1755-1315

Geography

Geosciences

Physics

2018-01-30

Institute of Physics (IOP)

1757-8981

1757-899X

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

2018-11-09

Institute of Physics (IOP)

1757-8981

1757-899X

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

2018-05-23

Institute of Physics (IOP)

1757-8981

1757-899X

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

2011-05-13

Nature Publishing Group (NPG)

0028-0836

1476-4687

Biology

Chemistry and Pharmacology

Medicine

Natural Sciences in General

Physics

Animals ; Basic Helix-Loop-Helix Transcription Factors/metabolism ; Cell Differentiation ; Cells, Cultured ; Gene Expression Profiling ; *Gene Expression Regulation, Neoplastic ; Gene Silencing ; Genes, Tumor Suppressor/*physiology ; Granulocyte-Macrophage Progenitor Cells/cytology/metabolism ; Hematopoietic Stem Cells/cytology/metabolism ; Homeodomain Proteins/metabolism ; Humans ; Leukemia, Myelomonocytic, Chronic/*genetics/*pathology ; Mice ; Mice, Inbred C57BL ; Mutation ; Receptors, Notch/deficiency/*genetics/*metabolism ; *Signal Transduction ; Tumor Cells, Cultured

2012-12-04

Nature Publishing Group (NPG)

0028-0836

1476-4687

Biology

Chemistry and Pharmacology

Medicine

Natural Sciences in General

Physics

Fluorescence Resonance Energy Transfer ; *Models, Molecular ; Protein Binding ; Protein Structure, Tertiary ; Ubiquitin/*chemistry/*metabolism

2018-07-27

This study investigates to what extend do teachers of English as a school subject (ESS) in Saudi schools follow recommendations and guidelines suggested by language testing specialists in developing tables of specifications and preparing blueprints to their formative and summative language tests. To answer the study questions, a thirteen-statement Likert-scale questionnaire was developed and validated. The questionnaire was completed by 199 female and male ESS teachers in Saudi schools with different years of experience who teach ESS in public and private schools to intermediate and high school level students. The results indicated that the study participants rarely follow the recommended guidelines in preparing their test specifications and blueprints. It was also found that the participants usually prepare their tests without prior planning. They do not specify in advance language skills and elements they are going to include in their tests or the scoring methods they are going to follow. Language elements that lend themselves to be tested have the priority. Significant differences among the participants according to gender, years of experience, school types the participants work for and the level they teach were found and reported. The study is concluded with recommendations that might be helpful to in-service ESS teachers.

Bildung und Erziehung ; Education ; tables of specifications; blueprints; test constructions; formative language tests; summative language test ; Lehrende, Erziehende, Lernende ; Unterricht, Didaktik ; Teachers, Students, Pupils ; Curriculum, Teaching, Didactics ; Englischunterricht ; Fremdsprachenunterricht ; Sprachkenntnisse ; Test ; Leistung ; Kompetenz ; Lehrer ; Sekundarbereich ; Saudi-Arabien ; English language lessons ; foreign language teaching ; knowledge of languages ; test ; achievement ; competence ; teacher ; secondary education ; Saudi Arabia ; 10600

Zeitschriftenartikel, journal article

Online

2017

Kompetenz ; Test ; Sekundarbereich ; Lehrer ; Fremdsprachenkenntnisse ; Fremdsprachenunterricht ; Englischunterricht ; Leistung ; Saudi-Arabien

International journal of instruction, Bd. 11 (2017) H. 1, S. 195-210, 1308-1470

1694-609X

English

2018-06-16

Institute of Physics (IOP)

1757-8981

1757-899X

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

2018-05-12

Institute of Physics (IOP)

1757-8981

1757-899X

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

2018-04-07

BMJ Publishing Group

0017-5749

1468-3288

Medicine

GUT Recent advances in basic science, Gut

2018-01-12

BMJ Publishing Group

0143-005X

1470-2738

Medicine

2018-03-20

Institute of Physics (IOP)

1757-8981

1757-899X

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

2018-11-09

Institute of Physics (IOP)

1757-8981

1757-899X

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

2018-11-10

Institute of Physics (IOP)

1757-8981

1757-899X

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

1365-2133

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

The effects of intracutaneous injections of preparations of equal parts of betamethasone disodium phosphate and betamethasone acetate (Celestone Chronodose®) and triamcinolone acetonide (Kenacort-A®) on plasma cortisol levels were studied. Significant suppression of plasma cortisol lasting from 3 to 13 days was observed with various doses of the first preparation. With triamcinolone acetonide, there was only a mild and transient suppression.

Electronic Resource

1365-2133

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Electronic Resource

1365-3083

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Twenty-six new human or murine monoclonal immunoglobulins (IgM, IgA, murine IgGl or human IgG3) with a known V-region sequence were tested for alternative (non-Fc) binding to Staphylococcal protein A. Seven of them did not bind at all. Four immunoglobulins (all mouse IgGl) were bound but easily eluted (at pH 6). They were probably bound via the Fc part. All eleven were classified as negative for alternative binding. Fifteen immunoglobulins were found to bind more firmly; they came off the protein A column at pH 4–3 (alternative binders).Amino acid sequences of immunoglobulins that have been typed in the present work or earlier (25 binders and 26 non-binders) were compared. The light chain, the C region of the heavy chain and the D and JH segments look irrelevant for alternative binding. The N-terminal portion (amino acids 1–94) of the H chain probably forms the ligand of protein A. A peptide making the ligand cannot be reliably localized within this stretch but binder proteins had a high homology in residues 6–29.All mouse immunoglobulins expressing Vh genes of families J606 or S107 were alternative binders; those expressing other families were non-binders.

Electronic Resource

1600-0625

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Abstract:  The use of DNA microarray technology in biomedical research has dramatically increased during the past years. In the present report, we provide an overview on the basic DNA microarray technology and biostatistical methods for gene expression analysis. A focus is then put on its applications in dermatological research. In recent years, a series of gene expression studies have been performed for various dermatological diseases, such as malignant melanoma, psoriasis and lupus erythematosus. These analyses have identified interesting target genes as well as putative disease susceptibility loci. However, further functional studies will be needed for a more complete understanding of the pathogenesis of these diseases. This may be performed by means of the recently developed RNA interference technology. Besides its role in large-scale gene expression studies, DNA microarray technology has proved to be a valuable tool for genomic screens of genetic alterations, e.g. single nucleotide polymorphisms. These play a role in tumour development and progression, and also function as genetic markers for disease susceptibility. Taken together, DNA microarray technology opens enormous perspectives for dermatologists. It may help us understand the complex pathogenesis of a wide variety of dermatologic diseases and identify their genetic background.

Electronic Resource