Sustainable control of Anopheles mosquito population

Despite the widespread use of insecticides, community engagement programmes and preventive measures mosquito borne diseases are growing and new tools to prevent the spread of disease are urgently needed. An alternative control measure for the eradication of Anopheles mosquitoes is suggested by the use of a Sustainable Control Model, which demonstrates the capability of Odonata, a natural beneficial predator, to exercise control over Anopheles mosquitoes in less than 140 days

Automatic plant pest detection and recognition using k-means clustering algorithm and correspondence filters

Plant pest recognition and detection is vital for food security, quality of life and a stable agricultural economy. This research demonstrates the combination of the k-means clustering algorithm and the correspondence filter to achieve pest detection and recognition. The detection of the dataset is achieved by partitioning the data space into Voronoi cells, which tends to find clusters of comparable spatial extents, thereby separating the objects (pests) from the background (pest habitat). The detection is established by extracting the variant distinctive attributes between the pest and its habitat (leaf, stem) and using the correspondence filter to identify the plant pests to obtain correlation peak values for different datasets. This work further establishes that the recognition probability from the pest image is directly proportional to the height of the output signal and inversely proportional to the viewing angles, which further confirmed that the recognition of plant pests is a function of their position and viewing angle. It is encouraging to note that the correspondence filter can achieve rotational invariance of pests up to angles of 360 degrees, which proves the effectiveness of the algorithm for the detection and recognition of plant pests

Single-pole nature of Lambda (1405) and structure of K-pp

We have studied the structure of K- pp by solving this system in a variational treatment, starting from ansatz that Lambda(1405) is a K-p quasi-bound state, Lambda* with mass 1405 MeV/c2. The structure of K-pp reveals a molecular feature, namely, the K- in an "atomic center", Lambda*, plays a key role in producing strong covalent bonding with the other proton. Deeply bound Kbar nuclear systems are formed by this "super-strong" nuclear force due to migrating real bosons, Kbar, a la Heitler-London-Heisenberg, which overcompensates the stiff nuclear incompressibility. Theoretical background of the Lambda (1405) ansatz is discussed in connection with the double-pole picture of Lambda (1405) based on chiral SU(3) dynamics. Detailed analysis reveals single-pole nature of the observable Lambda (1405). There are two kinds of Sigma pi invariant masses experimentally observable, the usual T22 invariant mass and the conversion T21 invariant mass. It is of vital importance to determine whether the Lambda* mass is 1405 MeV or 1420 MeV. The T21 invariant mass from K- absorption at rest in deuteron can provide decisive information about this Lambda* mass problem.Comment: 8 pages, 4 figures, Proc. Hyp-

Outdoor Worship Concert

This is the poster for the Outdoor Worship Concert, held on Tuesday, September 12, 2023, at 6:30, at the OBU Amphitheatre. It featured the OBU Choirs

Competitive Effects of Intra-Industry Public Equity Offerings on Stock Repurchases and Bond Issuance Decisions of Rival Firms: Empirical evidence from the Nordic Region.

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Nosocomial infections in neonatal intensive care units: Cost-effective control strategies in resource-limited countries

Background: Nosocomial infections or hospital-acquired infectionsconstitute a global health problem. They lead to significant morbidity and mortality in both developed and resource-limited countries. The neonatal intensive care unit (NICU) is a suitable environment for disseminating these infections; underscoring the need for preventive intervention measures.Objectives: This review aims to highlight the global burden of nosocomialinfections in neonatal intensive care units (NICUs), to discuss their epidemiology and clinical spectrum, as well as the costeffective control strategies in resource-limited settings.Sources: Sources of information were from Google searches andPubMed- linked articles using the key words- nosocomial infections,neonatal intensive care unit, control. Related articles from hard copiesof medical literature and journals were also gathered.Results: Although paucity of data exists on the incidence of nosocomialinfections in NICUs in developing countries, reports from developedcountries indicate a range of 6% to 25%. Much higher figures were noted in some developing countries. Several risk factors for nosocomial infections were identified but varied in different NICUs surveyed. Effective control strategies have been recommended but hand washing or hand hygiene appears universally applicable in both developed and resource-limitedcountries. Economic analyses of these strategies in developed countrieshave established their costeffectiveness while the adaptability of hand hygiene program to resource-limited settings has been demonstrated in a World Health Organization pilot study in sub- Saharan Africa.Conclusion: Hand washing or hand hygiene by health-care personnelremains the most important evidence-based and cost-effective controlstrategy for the spread of nosocomial infections in NICUs in resource-limited countries.Key words: nosocomial infections; neonatal intensive care unit;control

A kinematic model for calculating the magnitude of angular momentum transfer in an accretion disk: Itime- independent case

Keplerian velocity laws imply the existence of velocity shear and shear viscosity within an accretion disk. Due to this viscosity, angular momentum is transferred from the faster moving inner regions to the slower-moving outerregions of the disk. Here we have formulated a model for calculating the magnitude of angular momentum transfer in a steady-state accretion disk using only two parameters; the transport coefficient of vorticity,w and the rate of change of angular velocity with radial distance, dW/ dR . With this model, the mass accretion rate in an accretion disk , can be determined without necessarily making use of the observed value of the luminosity of the accreting system