Properties of numbers

This research study the problem of increasing traffic accidents and their consequences on peoples’ life and properties for the periods 1434 to1438 A.H – statistical analysis specially chi square have been used to study the factors affecting the number of accidents in Albaha city.

6p guineverehuynh 18-06-2020 36 4   Download

Like paper-based signatures, digital signatures intend to respect a number of security assumptions. Methods of digital signature apposed by a single user have been defined and are widely used. But is it sufficient? What if a legal document requires witnesses and notarization, or a contract needs the signatures of several officers?This paper will first show the basics to understand digital signatures and how the a security properties of integrity, authentication, and non-repudiation are respected.

11p dunglh2013 02-04-2014 58 2   Download

The kinetic properties of glycine oxidase fromBacillus sub-tiliswere investigated using glycine, sarcosine, andD-proline as substrate. The turnover numbers at saturating substrate andoxygen concentrationswere 4.0 s )1 ,4.2s )1 ,and3.5 s )1 , respectively, with glycine, sarcosine, andD-proline as sub-strate. Glycine oxidase was converted to a two-electron reduced form upon anaerobic reduction with the individual substrates and its reductive half-reaction was demonstrated tobe reversible.

9p tumor12 20-04-2013 38 4   Download

Plasminogen activator inhibitor type-2 (PAI-2) is a nonconventional serine protease inhibitor (serpin) with unique and tantalizing properties that is generally considered to be an authentic and physiological inhibitor of uro-kinase. However, the fact that only a small percentage of PAI-2 is secreted has been a long-standing argument for alternative roles for this serpin.

10p fptmusic 12-04-2013 38 2   Download

Microorganisms produce a large number of pharmaco-logically and biotechnologically important peptides by using nonribosomal peptide synthetases (NRPSs). Due to their modular arrangement and their domain organization NRPSs are particularly suitable for engineering recom-binant proteins for the production of novel peptides with interesting properties.

9p fptmusic 12-04-2013 60 3   Download

Titin is known to interact with actin thin filaments within the I-band region of striated muscle sarcomeres. In this study, we have used a titin fragment of 800 kDa (T800) purified from striated skeletal muscle to measure the effect of this interaction on the functional properties of the actin– myosin complex. MALDI-TOF MS revealed that T800 contains the entire titin PEVK (Pro, Glu, Val, Lys-rich) 1 domain.

0p awards 05-04-2013 46 4   Download

Protein misfolding and deposition underlie an increasing number of debili-tating human disorders. Alzheimer’s disease is pathologically characterized by the presence of numerous insoluble amyloid plaques in the brain, com-posed primarily of the 42 amino acid humanb-amyloid peptide (Ab42). Disease-linked mutations in Ab42 occur in or near a central hydrophobic cluster comprising residues 17–21.

11p dell39 27-03-2013 37 5   Download

The different effects of pH and NaCl on individual O2-binding properties ofaandbsubunits within liganded tetramer and dimer of human hemo-globin (HbA) were examined in a number of laser time-resolved spectro-scopic measurements. A previously proposed approach [Dzhagarov BM & Lepeshkevich SV (2004)Chem Phys Lett390, 59–64] was used to determine the extent of subunit dissociation rate constant difference and subunit affinity difference from a single flash photolysis experiment.

11p dell39 27-03-2013 48 4   Download

Neural stimulation controls the contractile properties of skeletal muscle fibres through transcriptional regulation of a number of proteins, including myosin isoforms. To study whether neural stimulation is also involved in the control of post-translational modifications of myosin, we analysed the phosphorylation of alkali myosin light chains (MLC1) and regulatory myo-sin light chains (MLC2) in rat slow (soleus) and fast (extensor digitorum longus EDL) muscles using 2D-gel electrophoresis and mass spectrometry....

15p dell39 27-03-2013 52 6   Download

The multidrug resistance-associated protein transporter ABCC1 (MRP1) is an integral plasma membrane protein involved in the multidrug resistance phenotype. It actively expels a number of cytotoxic molecules from cells. To gain insight into the modulation of the functional properties of this integral membrane protein by cholesterol, a main component of the lipid bilayer, we used multidrug-resistant GLC4⁄ADR cells,

11p galaxyss3 21-03-2013 44 5   Download

In mammals, cytochrome P450 17a-hydroxylase⁄17–20 lyase (CYP17), which is encoded by a single gene, plays a critical role in the production of mineralocorticoids, glucocorticoids and androgens by the adrenal cortex. Two CYP17 isoforms with unique catalytic properties have been identified in the South African Angora goat (Capra hircus), a subspecies that is susceptible to cold stress because of the inability of the adrenal cortex to produce sufficient levels of cortisol.

10p galaxyss3 07-03-2013 22 3   Download

Type II transmembrane serine proteases are an emerging class of proteo-lytic enzymes involved in tissue homeostasis and a number of human disor-ders such as cancer. To better define the biochemical functions of a subset of these proteases, we compared the enzymatic properties of matriptase, matriptase-2, hepsin and DESC1 using a series of internally quenched fluorogenic peptide substrates containingo-aminobenzoyl and 3-nitro-tyro-sine.

14p viettel02 22-02-2013 26 2   Download

We prove that a type II1 factor M can have at most one Cartan subalgebra A satisfying a combination of rigidity and compact approximation properties. We use this result to show that within the class HT of factors M having such Cartan subalgebras A ⊂ M , the Betti numbers of the standard equivalence relation associated with A ⊂ M ([G2]), are in fact isomorphism invariants for HT the factors M , βn (M ), n ≥ 0. The class HT is closed under amplifications HT HT and tensor products,

92p noel_noel 17-01-2013 38 7   Download

Steiner symmetrization, one of the simplest and most powerful symmetrization processes ever introduced in analysis, is a classical and very well-known device, which has seen a number of remarkable applications to problems of geometric and functional nature. Its importance stems from the fact that, besides preserving Lebesgue measure, it acts monotonically on several geometric and analytic quantities associated with subsets of Rn. Among these, perimeter certainly holds a prominent position.

34p noel_noel 17-01-2013 41 7   Download

MULTIPLICITY RESULTS FOR A CLASS OF ASYMMETRIC WEAKLY COUPLED SYSTEMS OF SECOND-ORDER ORDINARY DIFFERENTIAL EQUATIONS FRANCESCA DALBONO AND P. J. MCKENNA Received 1 November 2004 We prove the existence and multiplicity of solutions to a two-point boundary value problem associated to a weakly coupled system of asymmetric second-order equations. Applying a classical change of variables, we transform the initial problem into an equivalent problem whose solutions can be characterized by their nodal properties.

23p sting12 10-03-2012 40 7   Download

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article On Some Arithmetical Properties of the Genocchi Numbers and Polynomials

14p sting10 29-02-2012 53 5   Download

Tuyển tập các báo cáo nghiên cứu khoa học về toán học trên tạp chí toán học quốc tế đề tài: The maximum piercing number for some classes of convex sets with the (4, 3)-property...

16p thulanh6 15-09-2011 33 2   Download

Scaling is assigning numbers to indicants of the properties of objects. Đo lường bằng thang đo là việc gán các con số tương ứng với các biểu thị của đặc tính của đối tượng muốn đo lường.

19p leminh250289 30-11-2010 609 73   Download

What makes work with rational numbers and integers comfortable are the essential properties they have, especially the unique factorization property (the Main Theorem of Arithmetic). However, the might of the arithmetic in Q is bounded. Thus, some polynomials, although they have zeros, cannot be factorized into polynomials with rational coefficients.

7p phuctran399 14-11-2010 73 6   Download

Trong phần trước của loạt bài này chúng ta đã đến với kịch bản có tên gọi là DisplayClassProperties.vbs, đây là kịch bản hiển thị tên các thuộc tính của lớp WMI. Đây là những gì của nội dung kịch bản, bằng sử dụng Win32_BootConfiguration như một lớp, chúng ta đang kết nối vào biệt danh WMI: Option Explicit On Error Resume Next Dim strComputer Dim strWMINamespace Dim strWMIQuery Dim objWMIService Dim colItems Dim objItem strComputer = ".

15p maicon24 24-07-2010 106 13   Download