1,279 research outputs found
CHANGES IN SERUM ENZYMES LEVELS ASSOCIATED WITH LIVER FUNCTIONS IN STRESSED MARWARI GOAT
Serum enzyme levels were determined in goats of Marwari breed belonging to farmers’ stock of arid tract of Rajasthan state, India. The animals were grouped into healthy and stressed comprising of gastrointestinal parasiticised, pneumonia affected, and drought affected. The serum enzymes determined were sorbitol dehydrogenase, malate dehydrogenase, glucose-6-phosphate dehydrogenase, glutamate dehydrogenase, ornithine carbamoyl transferase, gamma-glutamayl transferase, 5’nucleotidase, glucose-6-phosphatase, arginase, and aldolase. In stressed group the mean values of all the enzymes increased significantly (p≤0.05) as compared to respective healthy mean value. All the enzymes showed highest values in the gastrointestinal parasiticised animals and least values in the animals having pneumonia. In gastrointestinal parasiticised animals maximum change was observed in G-6-Pase activity and minimum change was observed in malate dehydrogenase mean value. It was concluded that Increased activity of all the serum enzymes was due to modulation of liver functions directly or indirectly
Doing good with other people's money: A charitable giving experiment with students in environmental sciences and economics
We augment a standard dictator game to investigate how preferences for an environmental project relate to willingness to limit others' choices. We explore this issue by distinguishing three student groups: economists, environmental economists, and environmental social scientists. We find that people are generally disposed to grant freedom of choice, but only within certain limits. In addition, our results are in line with the widely held belief that economists are more selfish than other people. Yet, against the notion of consumer sovereignty, economists are not less likely to restrict others' choices and impose restrictions closer to their own preferences than the other student groups.dictator game, charitable giving, social preferences, paternalism
Skellam and Time-Changed Variants of the Generalized Fractional Counting Process
In this paper, we study a Skellam type variant of the generalized counting
process (GCP), namely, the generalized Skellam process. Some of its
distributional properties such as the probability mass function, probability
generating function, mean, variance and covariance are obtained. Its fractional
version, namely, the generalized fractional Skellam process (GFSP) is
considered by time-changing it with an independent inverse stable subordinator.
It is observed that the GFSP is a Skellam type version of the generalized
fractional counting process (GFCP) which is a fractional variant of the GCP. It
is shown that the one-dimensional distributions of the GFSP are not infinitely
divisible. An integral representation for its state probabilities is obtained.
We establish its long-range dependence property by using its variance and
covariance structure. Also, we consider two time-changed versions of the GFCP.
These are obtained by time-changing the GFCP by an independent L\'evy
subordinator and its inverse. Some particular cases of these time-changed
processes are discussed by considering specific L\'evy subordinators
Generalized Fractional Counting Process
In this paper, we obtain additional results for a fractional counting process
introduced and studied by Di Crescenzo et al. (2016). For convenience, we call
it the generalized fractional counting process (GFCP). It is shown that the
one-dimensional distributions of the GFCP are not infinitely divisible. Its
covariance structure is studied using which its long-range dependence property
is established. It is shown that the increments of GFCP exhibits the
short-range dependence property. Also, we prove that the GFCP is a scaling
limit of some continuous time random walk. A particular case of the GFCP,
namely, the generalized counting process (GCP) is discussed for which we obtain
a limiting result, a martingale result and establish a recurrence relation for
its probability mass function. We have shown that many known counting processes
such as the Poisson process of order , the P\'olya-Aeppli process of order
, the negative binomial process and their fractional versions etc. are other
special cases of the GFCP. An application of the GCP to risk theory is
discussed
On the Superposition of Generalized Counting Processes
In this paper, we study the merging of independent generalized counting
processes (GCPs). First, we study the merging of finite number of independent
GCPs and then extend it to the countably infinite case. It is observed that the
merged process is a GCP with increased arrival rates. Some distributional
properties of the merged process are obtained. It is shown that a packet of
jumps arrives in the merged process according to Poisson process. An
application to industrial fishing problem is discussed
Generalized Counting Process: its Non-Homogeneous and Time-Changed Versions
We introduce a non-homogeneous version of the generalized counting process
(GCP), namely, the non-homogeneous generalized counting process (NGCP). We
time-change the NGCP by an independent inverse stable subordinator to obtain
its fractional version, and call it as the non-homogeneous generalized
fractional counting process (NGFCP). A generalization of the NGFCP is obtained
by time-changing the NGCP with an independent inverse subordinator. We derive
the system of governing differential-integral equations for the marginal
distributions of the increments of NGCP, NGFCP and its generalization. Then, we
consider the GCP time-changed by a multistable subordinator and obtain its
L\'evy measure, associated Bern\v{s}tein function and distribution of the first
passage times. The GCP and its fractional version, that is, the generalized
fractional counting process when time-changed by a L\'evy subordinator are
known as the time-changed generalized counting process-I (TCGCP-I) and the
time-changed generalized fractional counting process-I (TCGFCP-I),
respectively. We obtain the distribution of first passage times and related
governing equations for the TCGCP-I. An application of the TCGCP-I to ruin
theory is discussed. We obtain the conditional distribution of the th order
statistic from a sample whose size is modelled by a particular case of
TCGFCP-I, namely, the time fractional negative binomial process. Later, we
consider a fractional version of the TCGCP-I and obtain the system of
differential equations that governs its state probabilities. Its mean,
variance, covariance, {\it etc.} are obtained and using which its long-range
dependence property is established. Some results for its two particular cases
are obtained
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