background: because of the strong immunologic responses of surface protein tasp in theileria annu­lata infected host, we tried to characterize this protein in a t. annulata isolate from iran. methods: the rna prepared from t. annulata infected cells was used to produce smart-ds-cdna. the double strand cdna was then amplified with primers derived from tasp mrna se­quences. the pcr product was cl...

Flow control policies are important in data-flow, work-flow, transaction systems and software design. Previous work in this area concentrates either on modelling security aspects of information flow control or applying flow control policies in some specific application domain. These models permit either permissions or prohibitions for flows and normally are based on a specific meta-policy (usua...

We consider pure-jump transaction-level models for asset prices in continuous time, driven by point processes. In a bivariate model that admits cointegration, we allow for time deformations to account for such effects as intraday seasonal patterns in volatility, and non-trading periods that may be different for the two assets. Most assumptions are stated directly on the point process, though we...

| Traditional concurrency control theory views transactions in terms of read and write operations on database items. Thus, the eeects of accessing non-database entities, such as the system clock or the log, on a transaction's behavior are not explicitly considered. In this paper, we are motivated by a desire to include accesses to such extra-data items within the purview of transaction and data...

The French Securities Transaction Tax (STT) implementation on August 1st, 2012, is considered a landmark development within securities markets regulation. However, until today the controversy about possible drawbacks and applicability has not reached a conclusion and consequences for market quality are yet to be thoroughly assessed. In this light a rigorous evaluation on the STT’s effect on mar...

i am going to assess shortcomings of transaction cost economics (tce) of oliver williamson. my argument is that this analysis suffers from misidentification of the relevant problem of the theory, analytical incoherence, inconsistent empirical support and methodological defects. in formulating coase's fundamental idea, williamson accepts an efficient equilibrium which occurs once forever, t...

We introduce a new formal semantics for active databases that relies on a transaction rewriting technique. A user de ned transaction, which is viewed here as a sequence of atomic database updates forming a semantic atomic unit, is translated by means of active rules into induced one(s). Those transactions embody active rule semantics which can be either immediate or deferred. Rule semantics, co...

Instructional transactions are instructional algorithms, patterns of learner interactions, usually far more complex than a single display and a single response, which have been designed to enable the learner to acquire a certain kind of knowledge or skill. Different kinds of knowledge and skill would require different kinds of transactions. The necessary set of these instructional transactions ...

User-level operating system transactions allow system administrators and ordinary users to perform a sequence of file operations and then commit them as a group, or abort them without leaving any trace behind. Such a facility can aid many system administration and software development tasks. The snapshot isolation concurrency control mechanism allows transactions to be implemented without locki...

The multi-agent resource allocation problem is the negotiation of m resources among the n agents of a population, in order to maximize a social welfare function. Contrary to some former studies, the purpose is here neither to simply determine a socially optimal resource allocation nor to prove the existence of a transaction sequence leading to this optimum. The objective is to define the indivi...