This report describes a draft genome sequence of Lactobacillus fermentum strain 3872. The data revealed remarkable similarity to and dissimilarity with the published genome sequences of other strains ...of the species. The absence of and variation in structures of some adhesins and the presence of an additional adhesin may reflect adaptation of the bacterium to different host systems and may contribute to specific properties of this strain as a new probiotic.
In this article statistical bounds for certain output characteristics of the
M
/
GI
/1/
n
and
GI
/
M
/1/
n
loss queueing systems are derived on the basis of large samples of an input characteristic ...of these systems, such as service time in the
M
/
GI
/1/
n
queueing system or interarrival time in the
GI
/
M
/1/
n
queueing system. The analysis in this article is based on application of Kolmogorov’s statistics for empirical probability distribution functions.
The book of Lajos Takács
Combinatorial Methods in the Theory of Stochastic Processes
has been published in 1967. It discusses various problems associated with
*
where
N
n
=
ν
1
+
ν
2
+
⋅⋅⋅
+
ν
n
is a ...sum of mutually independent, nonnegative integer and identically distributed random variables,
π
j
=P{
ν
k
=
j
},
j
≥0,
π
0
>0, and
ρ
(
i
) is the smallest
n
such that
N
n
=
n
−
i
,
i
≥1. (If there is no such
n
, then
ρ
(
i
)=∞.)
Equation (*) is a discrete generalization of the classic ruin probability, and its value is represented as
P
k
,
i
=
Q
k
−
i
/
Q
k
, where the sequence {
Q
k
}
k
≥0
satisfies the recurrence relation of convolution type:
Q
0
≠0 and
Q
k
=∑
j
=0
k
π
j
Q
k
−
j
+1
.
Since 1967 there have been many papers related to applications of the generalized classic ruin probability. The present survey is concerned only with one of the areas of application associated with asymptotic behavior of
Q
k
as
k
→∞. The theorem on asymptotic behavior of
Q
k
as
k
→∞ and further properties of that limiting sequence are given on pp. 22–23 of the aforementioned book by Takács. In the present survey we discuss applications of Takács’ asymptotic theorem and other related results in queueing theory, telecommunication systems and dams. Many of the results presented in this survey have appeared recently, and some of them are new. In addition, further applications of Takács’ theorem are discussed.
Supernatant obtained from high dose hydrocortisone resistant thymocytes can induce migration of the bone marrow cell precursors to the periphery. This biological activity depends on the presence of ...the 18
kDa protein, whose amino acid sequence fits with the sequence of the secretory form of murine cyclophilin A (SP-18). Cyclophilin A isolated from the supernatant of the cortisone-resistant thymoma EL-4 shows its characteristic functional features as it demonstrates isomerase activity and binds with cyclosporine A. The cyclophilin A obtained manifests chemotactic activity that regulates migration of bone marrow cell precursors of neutrophils, T-, B- and dendritic cells.
Optimal Control of a Large Dam Abramov, Vyacheslav M.
Journal of Applied Probability/Journal of applied probability,
03/2007, Letnik:
44, Številka:
1
Journal Article
Recenzirano
Odprti dostop
A large dam model is the object of study of this paper. The parameters L
lower and L
upper define its lower and upper levels,
L = L
upper - L
lower is large, and if the current level of water is ...between these bounds, the dam is assumed to be in a normal state. Passage across one or other of the levels leads to damage. Let J
1 and J
2 denote the damage costs of crossing the lower and, respectively, the upper levels. It is assumed that the input stream of water is described by a Poisson process, while the output stream is state dependent. Let L
t
denote the dam level at time t, and let p
1 = lim
t→∞P{L
t
= L
lower} and p
2 = lim
t→∞P{L
t
> L
upper} exist. The long-run average cost,
J = p
1
J
1 + p
2
J
2, is a performance measure. The aim of the paper is to choose the parameter controlling the output stream so as to minimize J.
This report describes a draft genome sequence of Lactobacillus crispatus 2029. The reads generated by the Ion Torrent PGM were assembled into contigs with a total size of 2.2 Mb. The data were ...annotated using the NCBI GenBank and RAST servers. A comparison with the reference strain revealed specific features of the genome.
A draft genome sequence of Lactobacillus jensenii strain MD IIE-70(2) was determined using Ion PGM technology. The reads were mapped to a reference strain and assembled using a combination of tools. ...The genetic features revealed in this study will assist in understanding the probiotic properties of Lactobacillus bacteria.
The paper studies a multiserver retrial queueing system withm servers. Arrival process is a point process with strictly stationary and ergodic increments. A customer arriving to the system occupies ...one of the free servers. If upon arrival all servers are busy, then the customer goes to the secondary queue, orbit, and after some random time retries more and more to occupy a server. A service time of each customer is exponentially distributed random variable with parameter µ1. A time between retrials is exponentially distributed with parameter µ2 for each customer. Using a martingale approach the paper provides an analysis of this system. The paper establishes the stability condition and studies a behavior of the limiting queue-length distributions as µ2 increases to infinity. As µ2?8, the paper also proves the convergence of appropriate queue-length distributions to those of the associated "usual" multiserver queueing system without retrials. An algorithm for numerical solution of the equations, associated with the limiting queue-length distribution of retrial systems, is provided. PUBLICATION ABSTRACT
This report describes a draft genome sequence of Lactobacillus plantarum 2165. The data demonstrate the presence of a large number of genes responsible for sugar metabolism and the fermentation ...activity of this bacterium. Different cell surface proteins, including fibronectin and mucus-binding adhesins, may contribute to the beneficial probiotic properties of this strain.
A draft genome sequence of Lactobacillus plantarum 2025 was derived using Ion Torrent sequencing technology. The total size of the assembly (3.33 Mb) was in agreement with the genome sizes of other ...strains of this species. The data will assist in revealing the genes responsible for the specific properties of this strain.
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