Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài:
The use of genomic signature distance between bacteriophages and their hosts displays evolutionary relationships and phage growth cycle determination
In bioinformatics, a sequence alignment is a way of arranging the sequences of DNA, RNA, or protein to identify regions of similarity that may be a consequence of functional, structural, or evolutionary relationships between the sequences. Aligned sequences of nucleotide or amino acid residues are typically represented as rows within a matrix. Gaps are inserted between the residues so that identical or similar characters are aligned in successive columns.
had great diffi culty fi nding a title for this book. For long, the working title was
Genetic Variation and Extinction. However, this title implies a causal and simple
relationship between genetic variation and extinction. I do think that the study
of genetic variation is extremely important for conservation biology but, as will
become apparent while reading the text, I am not as sure that this relationship is
as simple and straightforward as I thought when I began this voyage.
In this paper we develop a story generator that leverages knowledge inherent in corpora without requiring extensive manual involvement. A key feature in our approach is the reliance on a story planner which we acquire automatically by recording events, their participants, and their precedence relationships in a training corpus.
C H A P T E R 2
Systematics and Vertebrate Evolution
Biologists attempt to classify living things according to their evolutionary relationships. Because these relationships probably can never be known exactly, several systematic schools of thought have developed.
Increasing attention has also been given to
dissecting and understanding diversity in relation to genes underlying important agronomic
traits in a number of crops. Molecular phylogenetics and genetic diversity analysis can help
to clarify the taxonomic identity and evolutionary relationships of the wild relatives of crop
species. These methods can also help prevent misidentification and carefully plan effective
germplasm management strategies.
C H A P T E R 4
Early Chordates and Jawless Fishes
There are many hypotheses concerning the evolution of vertebrates. These hypotheses are continually being changed and refined as new studies uncover additional evidence of evolutionary relationships and force reassessments.
Fungalb-N-acetylhexosaminidases are inducible extracellular enzymes with
many biotechnological applications. The enzyme fromPenicillium oxalicum
has unique enzymatic properties despite its close evolutionary relationship
with other fungal hexosaminidases.
Glutamate carboxypeptidase III (GCPIII) is a metalloenzyme that belongs
to the transferrin receptor⁄glutamate carboxypeptidase II (GCPII; EC
220.127.116.11) superfamily. GCPIII has been studied mainly because of its evo-lutionary relationship to GCPII, an enzyme involved in a variety of neuro-pathologies and malignancies, such as glutamatergic neurotoxicity and
Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học Wertheim cung cấp cho các bạn kiến thức về ngành y đề tài: Relationship between the tissue-specificity of mouse gene expression and the evolutionary origin and function of the proteins...
The new millennium requires new thinking about the relationship between health and
development. It is not simply the turn of a calendar page that beckons us to new thinking. It is
the growing conviction that, notwithstanding enormous gains in many critical areas of health
over the last 50 years, the old strategies are no longer sufficient. Indeed, to a large degree,
they are failing.
In many parts of the world mortality declines have slowed or stagnated; in others they
have reversed, leaving literally billions suffering from avoidable mortality and morbidity.
We describe the structure of a fatty acid-binding protein 11 (fabp11b) gene
and its tissue-specific expression in zebrafish. The 3.4 kb zebrafishfabp11b
is the paralog of the previously described zebrafish fabp11a, with a deduced
amino acid sequence for Fabp11B exhibiting 65% identity with that of
The prolyl oligopeptidase (POP) family of serine proteases
includes prolyl oligopeptidase, dipeptidyl peptidase IV,
acylaminoacyl peptidaseandoligopeptidase B.The enzymes
of this family specifically hydrolyze oligopeptides with less
than 30 amino acids.Many of the POP family enzymes have
evoked pharmaceutical interest as they have roles in the
regulationof peptide hormones and are involved in a variety
of diseases such as dementia, trypanosomiasis and type 2
Molecular phylogeny among catalase–peroxidases, cyto-chromecperoxidases, and ascorbate peroxidases was ana-lysed. Sixty representative sequences covering all known
subgroups of class I of the superfamily of bacterial, fungal,
and plant heme peroxidases were selected. Each sequence
analysed contained the typical peroxidase motifs evolved to
bind effectively the prosthetic heme group, enabling per-oxidatic activity.
Abstract Complex I is the fi rst enzyme of the respiratory chain and plays a central
role in cellular energy production. It has been implicated in many human neurodegenerative
diseases, as well as in ageing. One of the biggest membrane protein
complexes, varying in size from 0.5 to 1 MDa, it is an L-shaped assembly consisting
of hydrophilic and membrane domains. Previously, we determined the structure
of the hydrophilic domain in several redox states. It established the pathway for
electron transfer from NADH to quinone via seven Fe-S clusters.
In the synthesis of ammonia, under industrial conditions, the
reaction normally comes sufficiently close to equilibrium for the
applications of thermodynamics to prove of immense value. t Thus
it will predict the influence of changes of pressure, temperature and
composition on the maximum attainable yield. By contrast in the
catalytic oxidation of ammonia the yield of nitric oxide is determined,
not by the opposition of forward and backward reactions, as in
ammonia synthesis, but by the relative speeds of two independent
processes which compete with each other for the available ammonia.
ADO.NET is the data access component of Microsoft’s new .NET Framework. Microsoft
bills ADO.NET as “an evolutionary improvement” over previous versions of ADO, a claim that has been hotly debated since its announcement. It is certainly true that the ADO.NET object model bears very little relationship to earlier versions of ADO.
The relationship between the manufacturers of electronic components and the
assemblers of electronic circuitry resembles that between two different orders of
living beings, for example insects and plants: they need one another to be able to
exist, and for that reason there are close links between the evolutionary paths of
both. The shapes and the dimensions of their bodies, or respectively their functions,
must match one another, so that whatever is needed to ensure the survival of either
species can be properly performed. Any mistakes or mismatches are punished by