Let
be a unital *-algebra containing a non-trivial projection. In this paper, it is shown that a map Γ:
such that
for all
. Then Γ is an additive *-derivation.
This paper concentrates on examining the characterization of nonlinear mixed bi-skew Lie triple ∗- derivations within an ∗-algebra denoted by A which contains a nontrivial projection with a unit I. ...Additionally, we expand this investigation to applications by describing these derivations within prime ∗-algebras, von Neumann algebras, and standard operator algebras.
In this paper, we study domination in the zero-divisor graph of a *-ring. We first determine the domination number, the total domination number, and the connected domination number for the ...zero-divisor graph of the product of two *-rings with componentwise involution. Then, we study domination in the zero-divisor graph of a Rickart *-ring and relate it with the clique of the zero-divisor graph of a Rickart *-ring. KCI Citation Count: 0
Noroviruses (NoVs) cause over 90% of non-bacterial gastroenteritis outbreaks in adults and children in developed countries. Therefore, there is a need for approaches to mitigate the transmission of ...noroviruses in workplaces to reduce their substantial health burden. We developed and validated a low-cost, autonomous robot called the UVBot to disinfect occupational spaces using ultraviolet (UV) lamps. The total cost of the UVBOT is less than USD 1000, which is much lower than existing commercial robots that cost as much as USD 35,000. The user-friendly desktop application allows users to control the robot remotely, check the disinfection map, and add virtual walls to the map. A 2D LiDAR and a simultaneous localization and mapping (SLAM) algorithm was used to generate a map of the space being disinfected. Tulane virus (TV), a human norovirus surrogate, was used to validate the UVBot's effectiveness. TV was deposited on a painted drywall and exposed to UV radiation at different doses. A 3-log (99.9%) reduction of TV infectivity was achieved at a UV dose of 45 mJ/cm
. We further calculated the sanitizing speed as 3.5 cm/s and the efficient sanitizing distance reached up to 40 cm from the UV bulb. The design, software, and environment test data are available to the public so that any organization with minimal engineering capabilities can reproduce the UVBot system.
Background
The peach fruit fly,
Bactrocera zonata
(Saunders) (Diptera: Tephritidae), is a serious polyphagous pest of fruits and vegetables. Chemical management of
B. zonata
in fruits results in ...toxic residues that have adverse health effects on consumers resulting in increased demand for eco-friendly approaches. Laboratory bioassay was conducted to determine the pathogenicity of fungal and bacterial biopesticides against
B. zonata
.
Results
The pathogenicity of all tested bioinsecticides revealed that the maximum concentration (1 × 10
8
CFU ml
−1
) of
Metarhizium anisopliae
,
Beauveria bassiana
,
Lecanicillium lecanii
and
Bacillus thuringiensis
caused 95.8–100%, 95.9–97.9%, 32.7–39.6%, and 20.0–22.4% mortality in
B. zonata
, respectively at 7 d post-application interval (PAI) as compared to mortality demonstrated by the same concentration at 5 d PAI. All tested microbial insecticides induced statistically similar mortality in both male and female
B. zonata
at each concentration for the same PAI. Correlation coefficient (
r
) values reveal that concentrations of each microbial insecticide had a high positive correlation with mortalities of male and female
B. zonata
. Regression parameters reveal that concentrations of tested microbial insecticides had significant linear relationship with and explained significant variability in
B. zonata
mortality (
P
< 0.05). Results also revealed that
M. anisopliae
was proved more pathogenic to males and females of
B. zonata
demonstrating the least LC
50
values (5.48 × 10
3
, and 6.17 × 10
3
CFU ml
−1
, respectively) 7 d post-application intervals, followed by
B. bassiana
which explained LC
50
value of 1.14 × 10
4
CFU and 1.15 × 10
5
CFU ml
−1
for
B. zonata
males and females, respectively, at the same period of application, but less than that of
L. lecanii
(2.77 × 10
9
and 1.43 × 10
9
CFU ml
−1
) and then
B. thuringiensis
(3.40 × 10
10
and 1.39 × 10
10
CFU ml
−1
) for the males and females, respectively, at 7 d PAIs.
Conclusion
Metarhizium anisopliae
incorporated adult diet was proved more effective against
B. zonata,
followed by
B. bassiana
,
L. lecanii
, and
B. thuringiensis
. Hence,
M. anisopliae
can be recommended for incorporating in bait-traps to develop attract-and-kill technology for
B. zonata
.
Abstract
Let
R
be a commutative ring with
A
(
R
)
{A(R)}
its set of annihilating-ideals. The
extended annihilating-ideal graph
of
R
, denoted by
AG
¯
(
R
)
{\overline{\mathrm{AG}}(R)}
, is an ...undirected graph with vertex set
A
(
R
)
*
=
A
(
R
)
∖
{
0
}
{A(R)^{*}=A(R)\setminus\{0\}}
and two vertices
I
1
{I_{1}}
and
I
2
{I_{2}}
are adjacent if and only if
I
1
m
I
2
n
=
0
{I_{1}^{m}I_{2}^{n}=0}
with
I
1
m
≠
0
{I_{1}^{m}\neq 0}
and
I
2
n
≠
0
{I_{2}^{n}\neq 0}
, for some positive integers
m
and
n
. In this paper, we first study some basic properties of
AG
¯
(
R
)
{\overline{\mathrm{AG}}(R)}
and then we investigate the relationship between the extended annihilating-ideal graph
AG
¯
(
R
)
{\overline{\mathrm{AG}}(R)}
, the annihilator-ideal graph
A
I
(
R
)
{A_{I}(R)}
and the annihilating-ideal graph
AG
(
R
)
{\mathrm{AG}(R)}
of a commutative ring
R
.
Poultry farming from last decade earn a good name in terms of income and employment generation in Kashmir valley. Taking this point as our concern we go through the cost benefit of poultry farming in ...Kashmir valley. As our study area is district Anantnag and we take one medium size poultry farm as our sample. The study shows that the income from poultry farming is so reasonable and normal profits are earned with less effort. So government should have to think about this industry and support them financially and give them new information’s and training regarding poultry farming through which the production and productivity increase. .
Let
be a standard operator algebra containing the identity operator
on an infinite dimensional complex Hilbert space
which is closed under adjoint operation. Suppose that
is the second nonlinear ...mixed Lie triple derivation. Then ϕ is an additive
-derivation.
Let A be a standard operator algebra on an infinite dimensional complex
Hilbert space H containing identity operator I, which is closed under the
adjoint operation. Suppose that ? : U ? U is the ...nonlinear mixed Jordan
triple *- derivation. Then ? is an additive *-derivation.
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