Resistance status and the rate of resistance development in Musca domestica Linnaeus (Diptera: Muscidae) to permethrin and imidacloprid in Indonesia

A previous report has indicated that in many regions of Indonesia, populations of Musca domestica Linnaeus have shown very high resistance to permethrin and low resistance to imidacloprid. In this study, the resistance status to permethrin and imidacloprid was updated using a topical application and feeding bioassay. Six housefly strains originated from six highly populated cities in Indonesia, namely Serang (SRG), Jakarta (JKT), Bandung (BDG), Semarang (SMG), Yogyakarta (JOG), and Surabaya (SBY). A seventh strain (Danish Pest Infestation Laboratory (DPIL)) served as the control. Each strain was tested for resistance to the two insecticides. In addition, the rate of development of resistance to the two insecticides was measured over ten generations. The results indicated that all field strains showed very high resistance to permethrin. The highest resistance level recorded was in the SRG strain (RR50 = 2880), and the lowest was in the JKT strain (RR50 = 520). Repeated application of permethrin over ten generations increased the resistance level by about 2.7–32.73-fold as compared to the level of their respective parental populations. On the other hand, most strains showed low to moderate resistance to imidacloprid, in which the SRG strain had the highest resistance level (RR50 = 15.5) and the SBY strain had the lowest (RR50 = 2.0). Repeated application of imidacloprid over ten generations increased the resistance level by about 3.25–17.41-fold. The findings, which is the second report of housefly resistance in Indonesia since 2016, provide a crucial foundation for developing appropriate housefly integrated pest management strategies in highly populated areas in Indonesia.

Improving the Technology for the Production of Fruit Distillates Based on Innovative Approaches to Fractional Distillation of Apple Wine Materials

В настоящей статье научно обоснован прием сокращения количества образующейся головной фракции при фракционной перегонке. В том числе научно обоснована перспективность повторного применения нового побочного продукта фракционной перегонки, промежуточной фракции, в технологии изготовления яблочных (фруктовых) или кальвадосных дистиллятов. Представлен сравнительный анализ состава головной фракции, полученной в процессе фракционной перегонки с выделением и применением и без выделения и применения промежуточной фракции с учетом требований технических нормативно-правовых актов. Подтверждена целесообразность проведения процесса фракционной перегонки с отбором четырех фракций вместо трех, характерных для классической технологии производства фруктовых дистиллятов. In this material is scientifically justified the method of reducing the amount of the resulting head fraction during fractional distillation. Scientifically based the prospects for the repeated application of a new product fractional distillation of an intermediate fraction in the technology of manufacturing fruit distillates. Сomparative analysis is presented of the composition of the head fraction and with / without isolation (s) and with / without the use (s) of an intermediate fraction, following the technical requirements. The expediency of the process has been proved with the selection of four instead of three fractions characteristic of the classical technology of production of fruit distillates.

Flexible Krylov Methods for Edge Enhancement in Imaging

Many successful variational regularization methods employed to solve linear inverse problems in imaging applications (such as image deblurring, image inpainting, and computed tomography) aim at enhancing edges in the solution, and often involve non-smooth regularization terms (e.g., total variation). Such regularization methods can be treated as iteratively reweighted least squares problems (IRLS), which are usually solved by the repeated application of a Krylov projection method. This approach gives rise to an inner–outer iterative scheme where the outer iterations update the weights and the inner iterations solve a least squares problem with fixed weights. Recently, flexible or generalized Krylov solvers, which avoid inner–outer iterations by incorporating iteration-dependent weights within a single approximation subspace for the solution, have been devised to efficiently handle IRLS problems. Indeed, substantial computational savings are generally possible by avoiding the repeated application of a traditional Krylov solver. This paper aims to extend the available flexible Krylov algorithms in order to handle a variety of edge-enhancing regularization terms, with computationally convenient adaptive regularization parameter choice. In order to tackle both square and rectangular linear systems, flexible Krylov methods based on the so-called flexible Golub–Kahan decomposition are considered. Some theoretical results are presented (including a convergence proof) and numerical comparisons with other edge-enhancing solvers show that the new methods compute solutions of similar or better quality, with increased speedup.

The Effect of Repeat Tax Amnesty and Tax Penalty Policy on Taxpayer Compliance (An Experimental Study)

This study aims to (1) examine the effect of repeated tax amnesty knowledge on taxpayer compliance, (2) examine the effect of tax sanctions on taxpayer compliance based on threats to taxpayer compliance decisions, and (3) examine differences in taxpayer compliance based on taxpayer knowledge, on the re-implementation of tax amnesty and the effect of tax sanctions on taxpayer compliance decisions. This study used a 2 x 2 factorial experimental research design between subjects by using 119 participants from accounting students from the Faculty Economic and Busines Warmadewa University. The results showed that both the knowledge of taxpayers on the re-implementation of tax amnesty and the effect of tax sanctions on taxpayer compliance decisions can affect taxpayer compliance. Besides that too, there is an interaction between taxpayer knowledge on the re-implementation of tax amnesty and the effect of tax sanctions on taxpayer compliance decisions where if the taxpayer is in a condition not aware of the repeated application of the tax amnesty, taxpayers who also receive high tax sanctions will show the highest degree of compliance, compared to subjects in other situations. Hypothesis testing using a different test t test with the help of the SPSS 26.0 program. The expected research output is that the results of this research will be published in the proceedings of the Warmadewa of University Research Institute. Keywords: Recurring tax forgiveness, tax sanctions, tax compliance.

Dermal Irritation Study of Pankajakasthuri Orthoherb Cream/Thermagel, a Potent Polyherbal Anti-inflammatory and Analgesic Formulation for Topical Application in Healthy New Zealand White Rabbits

Pankajakasthuri orthoherb cream/thermagel is a polyherbal topical medication formulated for managing inflammation and pain. The objective of the present study was to evaluate the skin irritation potential of Pankajakasthuri orthoherb cream/thermagel on a single and repeated application in New Zealand white rabbits. The rabbits were dermally exposed with Pankajakasthuri orthoherb cream/thermagel and the appearance of each application site at 1 h, 24 h, 48 h, 72 h, 7th day and 14th day was recorded. The dermal reactions (erythema and edema) were evaluated according to the skin reactions scoring system. Pankajakasthuri orthoherb

Certain Soil Surfactants Could Become a Source of Soil Water Repellency after Repeated Application

Repeated application of soil surfactants, or wetting agents, is a common practice for alleviating soil water repellency associated with soil organic coatings. However, wetting agents are organic compounds that may also coat soil particle surfaces and reduce wettability. For this experiment, hydrophobic sands from the field and fresh, wettable sands were collected and treated with either a polyoxyalkylene polymer (PoAP) or alkyl block polymer (ABP) wetting agent, or water only treatments served as a control. Following repeated treatment application and sequential washings, dissolved and particulate organic carbon (OC) were detected in the leachates of both sand systems. The total amount of OC recovered in leachates was 88% or less than the OC introduced by the wetting agents, indicating sorption of wetting agent monomers to soil particle surfaces regardless of soil hydrophobicity status. While ABP treatment did not alter solid phase organic carbon (SOC) in the sands studied, PoAP application increased SOC by 16% and 45% which was visible in scanning electronic microscopy images, for hydrophobic and wettable sands, respectively. PoAP application also increased the hydrophobicity of both sands that were studied. In contrast, ABP treatment increased the wettability of hydrophobic sand. Our results provide strong evidence that certain wetting agents may increase soil hydrophobicity and exacerbate wettability challenges if used repeatedly over time.

Assessment of presence in augmented and mixed reality

While the sense of presence in VR has been extensively studied, there are currently no scales available to measure the sense of presence in AR and MR. Here we propose a general Holistic Presence Questionnaire (HPQ), that measures presence through the sense of telepresence, internal and external plausibility and perceived behavioral and cognitive affordances in the mediated environment. The HPQ is sufficiently general to measure presence experienced in any type of multi-sensory (visual, auditory, haptic and olfactory) setting (including VR, AR and MR systems). By using single items to tap into each of the relevant psychological processing levels the HPQ is comprehensive and efficient. Individual items are sufficiently concise so that their (repeated) application minimally interferes with the experience.

closure-complement-frontier problem in saturated polytopological spaces

Let $X$ be a space equipped with $n$ topologies $\tau_1,\ldots,\tau_n$ which are pairwise comparable and saturated, and for each $1\leq i\leq n$ let $k_i$ and $f_i$ be the associated topological closure and frontier operators, respectively. Inspired by the closure-complement theorem of Kuratowski, we prove that the monoid of set operators $\mathcal{KF}_n$ generated by $\{k_i,f_i:1\leq i\leq n\}\cup\{c\}$ (where $c$ denotes the set complement operator) has cardinality no more than $2p(n)$ where $p(n)=\frac{5}{24}n^4+\frac{37}{12}n^3+\frac{79}{24}n^2+\frac{101}{12}n+2$. The bound is sharp in the following sense: for each $n$ there exists a saturated polytopological space $(X,\tau_1,...,\tau_n)$ and a subset $A\subseteq X$ such that repeated application of the operators $k_i, f_i, c$ to $A$ will yield exactly $2p(n)$ distinct sets. In particular, following the tradition for Kuratowski-type problems, we exhibit an explicit initial set in $\mathbb{R}$, equipped with the usual and Sorgenfrey topologies, which yields $2p(2)=120$ distinct sets under the action of the monoid $\mathcal{KF}_2$.