Acquisition Of Properties Research Articles

A wavelet analysis method to retrieve thermal conductivity and radiative properties of intense extinction and low conductive medium

The accurate acquisition of the physical properties of strongly extinction materials limits their application development. In order to solve the problem of large errors in the high temperature measurement of these materials, this paper constructs an inversion model for the radiative and conductive coupled heat transfer through wavelet decomposition coefficients, and compares it with traditional methods. The radiative and conductive coupled heat transfer model is solved by finite volume method and Monte Carlo method. Daubechies nine wavelet is used for signal wavelet analysis. It has been discovered that the wavelet decomposition parameters of the temperature field are mainly concentrated in the 4–8 wavelet frequency band of wavelet, it can separate from the random error that is mainly concentrated in the 1–3 frequency band of wavelet. Most of physical properties like the heating power, convective heat transfer coefficient, material thermal conductivity, extinction coefficient has a great impact on the waveform and amplitude of wavelet detail coefficient and approximation coefficient, and the change trend of approximation coefficient and detail coefficient amplitude is consistent with the trend of temperature field. However, the effect of scattering albedo on wavelet parameters is tiny. Through inversion, it is found that the inversion model based on wavelet decomposition parameters of 5–7 frequency band has higher accuracy when random error exists.

Mechanism of TLR4-Mediated Anti-Inflammatory Response Induced by Exopolysaccharide from the Probiotic Bacillus subtilis.

Intestinal inflammatory diseases affect millions of people worldwide, and one class of drugs showing promise toward treatment of several inflammatory diseases is probiotics. Numerous studies have been performed using probiotics to prevent and treat intestinal inflammatory diseases. Most of these studies used intact bacteria, and neither the active molecule nor the molecular mechanisms by which they affect immune responses are known. We have shown that the probiotic Bacillus subtilis is anti-inflammatory and can protect mice from acute colitis induced by the enteric pathogen Citrobacter rodentium. We identified and purified the active molecule, exopolysaccharide (EPS), and showed that it protects mice from C. rodentium-induced colitis by inducing anti-inflammatory M2 macrophages or inhibitory dendritic cells (DCs), both of which inhibit excessive T cell responses. We showed previously that EPS affects macrophages and DCs in a TLR4-dependent manner, and in the current study we asked how EPS induces these anti-inflammatory cells and how they function to inhibit T cells. By investigating the signaling downstream of TLR4 that leads to acquisition of inhibitory properties of macrophages and DCs, we found that EPS induces expression of the inhibitory molecule IDO in bone marrow-derived DCs, and that inhibition of T cell proliferation by IDO-expressing bone marrow-derived DCs utilizes the kynurenine/aryl hydrocarbon receptor circuit. Furthermore, unlike LPS, EPS does not induce inflammatory cytokines upon injection invivo, directly demonstrating different outcomes induced by two different TLR4 agonists.

Are Underserved Populations Left Out of National Flood Mitigation Efforts and Facing Greater Impact? A Method to Assess Racial Inequality at the Census Tract Level

Abstract Development policies have systematically relegated certain populations to undesirable locations including areas at risk of flooding. Over time many properties will no longer be inhabitable and others will see damage from significant flooding. Current U.S. federal policy funds flood risk mitigation measures, such as property acquisition, relocation, and retrofitting; however, depending on various factors at the subcounty level, these actions can in some contexts provide disproportionate benefit to higher income, mostly White areas, failing to appropriately benefit underserved and exposed populations. Here, we present an exploratory method, building off existing research on programmatic-wide and event-specific analysis to explore patterns allowing state- and county-level decision-makers to identify inequalities in federal funding, potentially supporting reprioritization. This work evaluates the National Flood Insurance Program (NFIP) claims data from 1975 to 2019 and Federal Emergency Management Agency (FEMA) mitigation efforts from 1989 to 2018 to explore the distribution of mitigation measures related to tract to county racial disproportionalities (for example, majority non-White census tracts in majority White counties). We find that for majority non-White census tracts in majority White counties, there are disproportionately fewer NFIP claims. This supports previous work, which shows lower levels of assistance in flood recovery, resilience, and preparedness in these areas.

Impact of informal remittance channels in Bangladesh: Understanding the role of hundi in financial crime beyond economic aspects

Despite the existence of legal and regulated systems, a significant proportion of Bangladeshi immigrants choose to utilize informal channels for the purpose of transferring funds. This practice has the potential to result in macroeconomic ramifications for Bangladesh. The rise of Hundi in Bangladesh has emerged as a noteworthy economic issue in recent times, particularly owing to its detrimental impact on the nation's foreign reserve and its utilization as a conduit for money launderers to unlawfully move funds abroad. The primary objective of this research is to analyze the implications of Hundi as a means of facilitating illicit financial operations. This study utilizes a qualitative research approach and a purposive sample consisting of 16 hundi dealers, 23 customers, and 7 senior bank officials working in the banking intelligence sector to investigate the hundi system's role in money laundering, despite the difficulties in accessing influential hundi dealers involved in significant transactions. The findings underscore the adverse economic consequences of Hundi, as it bypasses formal channels, thereby failing to contribute to Bangladesh's foreign reserves. Furthermore, it points out the exploitation of Hundi as a means for money laundering, enabling the assimilation of illicit funds into the legitimate economy, and supporting unlawful endeavors such as overseas property acquisition. The recommendations put forth suggest the implementation of strategies to enhance digital transactions, the establishment of a dedicated remittance application, and the design of a user-friendly agent banking system within the formal banking sector.

The effects of a voluntary property buyout and acquisition program on coastal housing markets: Evidence from New York

The magnitude and direction of the economic effects of removing or retrofitting housing in hazard-prone coastal locations is an open empirical question. Using data from a voluntary buyout and acquisition program in the U.S. state of New York, we recover hedonic estimates of the property value impacts of government-acquired properties in the state's coastal counties. Both a repeat sales difference-in-differences approach and an event study addressing treatment effect heterogeneity suggest that buyouts and acquisitions have sizable negative effects on prices (−20 to −10 percent) for homes sold adjacent (≤100 m) to participating properties. The spatial scale of the impacts differs across policy types, with negative effects attenuating after 100 m for buyouts but persisting for acquisitions up to 1200 m. These impacts are shown to approach zero four years after policy initiation, and the effect of buyouts may turn positive after five years. A disaggregated county-level analysis suggests spatial heterogeneity in price impacts, with positive effects in one county where most participating properties were buyouts and negative effects in counties where most properties were acquired and redeveloped. Our findings demonstrate coastal housing market implications of different policy outcomes that can inform government action in response to increased flood risk.

Der Eigentumserwerb durch traditio

Summary The acquisition of property by traditio, In addition, putative iusta causa traditionis and consequences for the doctrine of condictio. – The Justinian Digest contain a number of texts in which the traditio transfers ownership, although the ‘causa’ on account of which the delivery takes place, does not exist in fact. The paper attempts to show that this phenomenon cannot be explained through a broad acceptance of the putative causa traditionis, because the Roman concept of the traditio ex iusta causa differed from that of the ‘titulus-modus-doctrine’. The classical Roman law considered the iusta causa in most cases as the purpose of the delivery, for which the traditio was a means to achieve; the (non-)achievement of the intended purpose did not decide on the transfer of ownership, but only whether the recovery of the performance (condictio) was admissible. This shows the way Roman law favored the transfer of ownership.

Simultaneously Achieving Large Piezoelectricity and Low Dielectric Loss in High-Temperature BiScO3-PbTiO3-Based Ceramics.

High-temperature piezoelectric materials are pivotal to technology applications fields including defense, aerospace, nuclear energy, and oil well logging. However, the acquisition of excellent piezoelectric properties is usually at the cost of temperature stability (reduced Curie temperature and increased high-temperature dielectric loss), which hinders the application of piezoelectric ceramics in harsh environments. In this study, we investigated the effect of Nb5+ donor and Mn2+/3+ acceptor doping on the dielectric and piezoelectric properties of BiScO3-PbTiO3 (BS-PT)-based ceramics. In contrast to the acceptor doping, it was found that the donor doping not only enhances the piezoelectric properties but also effectively suppresses the dielectric loss at a high temperature by reducing the oxygen vacancy concentration. Eventually, we simultaneously attained an excellent piezoelectric performance (d33 is 553 pC/N at room temperature and 1528 pC/N at 400 °C, respectively) and a low dielectric loss (less than 2% in the temperature range of 150-300 °C) but still with a high Curie temperature (TC ∼ 445 °C) in Nb5+-doped BS-PT ceramics. Furthermore, different in situ measurements were used to demonstrate the remarkable temperature stability up to a high depolarization temperature of ∼400 °C. This work represents significant progress in high-temperature piezoelectric materials and provides a guideline for future efforts on enhancing the piezoelectricity and suppressing the dielectric loss at high temperature.

Protecting Investors from the Repercussions of Unregistered Indigenous Property

Land registration is classified as a high priority in the pursuit of economic growth and development. However, many countries still operate under customary law, resulting in limited access to credit. External investors may be ignorant of the wide range of property rights. This article highlights the difference between indigenous and Westernised property rights and transfer processes, and the effect of indigenous property acquisition on initiatives for land development. Several international case studies are discussed. The study concludes that there is a need for indigenous properties to be recorded in the national land administration system. It is recommended for the current electronic registration system project in South Africa to investigate how the incorporation of indigenous property may occur. Recommendations for future studies are made.

EXPRESS 3D GEOMECHANICAL MODELING FOR INPUT TO HYDRAULIC FRACTURING ON CARBONATE OILFIELDS OF BASHKORTOSTAN REPUBLIC

The work describes a method of real-time 3D modeling of mechanical properties over the entire field area for the purposes of hydraulic fracturing. The uniqueness of this modeling approach is associated with the prompt acquisition of mechanical properties along the well paths of the field, which is especially important in conditions of insufficient geomechanics data.
 Traditional three-dimensional geomechanical modeling is a time-consuming and resource-intensive process. The data often describe the mechanical properties and stress-strain state of the rocks within the current drilling or development sector of the field and do not take into account the interwell space, especially in poorly drilled areas of the field. The method of real-time 3D geomechanical modeling makes it possible to quantify values of minimum horizontal stress used in hydraulic fracturing simulators, as well as static and dynamic Young's modulus and Poisson's ratio over the entire field area using the optimal amount of resources and in a shorter time.
 Based on the built three-dimensional cubes of elastic properties and stresses, correct data were obtained in the inter-well space, their vertical and lateral changes were analyzed, and frac design data were obtained at any well drilled through the simulated targets of the field.
 This paper covers the Arlanskoye, Znamenskoye and Yugomashevskoye fields (Bashneft PJSC). The target targets are carbonate deposits: Kashira and Podolsk strata of the Arlanskoye field, Tournaisian strata of the Znamensky field and Bashkir-Vereisky strata of the Yugomashevsky field.
 For the carbonate rocks of the target targets, laboratory core studies were carried out to determine elastic properties, and stable regional core-core relationships were obtained in the intervals of lower and middle Carboniferous carbonate deposits.
 1D geomechanical models were built in RN-SIGMA software 84 wells at the intervals of the study targets. In current 3D geological models are introduced and distributed values of Young's modulus, Poisson's coefficient and minimum horizontal stress gradient is calculated. Analysis of changes in geomechanical properties by area, for each study object was carried out and data were obtained to create frac designs for 15,000 wells.

Anticancer Effect of Gallic Acid on Acidity-Induced Invasion of MCF7 Breast Cancer Cells.

The acidic tumor environment has emerged as a crucial factor influencing the metastatic potential of cancer. We investigated the effect of an acidic environment on the acquisition of metastatic properties in MCF7 breast cancer cells and explored the inhibitory effects of gallic acid. Prolonged exposure to acidic culture conditions (over 12 weeks at pH 6.4) induced the acquisition of migratory and invasive properties in MCF7 cells, accompanied by increased expression of Matrix Metalloproteinase 2 and 9 (MMP2 and MMP9, respectively), together with alterations in E-cadherin, vimentin, and epithelial-to-mesenchymal transition markers. Gallic acid effectively inhibited the survival of acidity-adapted MCF7 (MCF7-6.4/12w) cells at high concentrations (>30 μM) and reduced metastatic characteristics induced by acidic conditions at low concentration ranges (5-20 μM). Moreover, gallic acid suppressed the PI3K/Akt pathway and the nuclear accumulation of β-catenin, which were elevated in MCF7-6.4/12w cells. These findings highlight the potential of gallic acid as a promising therapeutic agent for metastatic traits in breast cancer cells under acidic conditions.

Identification of elastoplastic properties of materials with gradient residual stresses using a co-simulation method and nanoindentation experiments

Nanoindentation technology has many advantages in the acquisition of elastoplastic properties of certain small-scale materials (coatings, films, etc.) due to its small size and non-destructive properties. However, because of the microscopic scale involved, test results are also more susceptible to disturbances by internal residual stress of the specimen. To address these issues, this paper develops a co-simulation method for combining the optimization algorithm with finite element simulation in order to obtain the true elastoplastic properties of unknown materials using nanoindentation testing. This method is suitable for any surface treated materials, and the reliability of the method is also verified by the case of laminar plasma quenched rail.

An Improved Recursive Least Square Algorithm For Adapting Fuzzy Channel Equalizer

Adaptive filters have been thoroughly investigated in digital communication. They are especially exploited as equalizers, to compensate for channel distortions, although equalizers based on linear filters perform poorly in nonlinear distortion. In this paper, a nonlinear equalizer based on a fuzzy filter is proposed and a new algorithm for the adaptation parameters is presented. The followed approach is based on a regularization of the Recursive Least Square (RLS) algorithm and an incorporation of fuzzy rules in the adaptation process. The proposed approach, named Improved Fuzzy Recursive Least Square (IFRLS), enhances significantly the fuzzy equalizer performance through the acquisition of more convergence properties and lower steady-state Mean Square Error (MSE). The efficiency of the IFRLS algorithm is confirmed through extensive simulations in a nonlinear environment, besides the conventional RLS, in terms of convergence abilities, through MSE, and the equalized signal behavior. The IFRLS algorithm recovers the transmitted signal efficiently and leads to lower steady-state MSE. An improvement in convergence abilities is noticed, besides the RLS.

Phylogenetic inference from single-cell RNA-seq data

Tumors are comprised of subpopulations of cancer cells that harbor distinct genetic profiles and phenotypes that evolve over time and during treatment. By reconstructing the course of cancer evolution, we can understand the acquisition of the malignant properties that drive tumor progression. Unfortunately, recovering the evolutionary relationships of individual cancer cells linked to their phenotypes remains a difficult challenge. To address this need, we have developed PhylinSic, a method that reconstructs the phylogenetic relationships among cells linked to their gene expression profiles from single cell RNA-sequencing (scRNA-Seq) data. This method calls nucleotide bases using a probabilistic smoothing approach and then estimates a phylogenetic tree using a Bayesian modeling algorithm. We showed that PhylinSic identified evolutionary relationships underpinning drug selection and metastasis and was sensitive enough to identify subclones from genetic drift. We found that breast cancer tumors resistant to chemotherapies harbored multiple genetic lineages that independently acquired high K-Ras and β-catenin, suggesting that therapeutic strategies may need to control multiple lineages to be durable. These results demonstrated that PhylinSic can reconstruct evolution and link the genotypes and phenotypes of cells across monophyletic tumors using scRNA-Seq.

Rapid acquisition of liquid thermophysical properties from pure metals to quaternary alloys by proposing a machine learning strategy

The establishment of reliable materials genome databases involving the thermophysical properties of liquid metals and alloys promotes the progress of materials research and development, whereas acquiring these properties imposes great challenges on experimental investigation. Here, we proposed a deep learning method and achieved a deep neural network (DNN) interatomic potential for the entire Ti–Ni–Cr–Al system from pure metals to quaternary alloys. This DNN potential exhibited sufficient temperature and compositional transformability which extended beyond the training and provided the prediction of the liquid structure and thermophysical properties for metallic materials with both density functional theory accuracy and classic molecular dynamics efficiency. The predicted results agreed well with the reported experimental data. This work opens a feasible way to address the challenges of rapidly and accurately acquiring thermophysical properties data for liquid pure metals and multicomponent alloys, covering a broad temperature range from superheated to undercooled state.

Features of the legal status of sports federations in Ukraine

Introduction. Sport is an autonomous system that includes a huge array of various public sports organizations connected by complex relationships, the central place among which is occupied by sports federations. The purpose of the paper is to determine the specifics of the legal status and areas of activity of sports federations in Ukraine. Results. Results. The Law of Ukraine "On Physical Culture and Sports" provides for the delegation of powers for the development of the relevant sport, organization and holding of official international and all-Ukrainian sports competitions on the territory of Ukraine, etc. to public associations of physical culture and sports orientation. At the same time, it is difficult to talk about the complete autonomy of sports federations, since the sports federation, among other things, ensures cooperation with the structural units of local state administrations and local self-government bodies regarding the development of the respective sport; agrees with the Ministry, relevant local bodies of executive power and local self-government bodies on the issue of holding international sports competitions on the territory of Ukraine; implements and demands the same implementation from its members of the decisions of the Ministry, relevant contracts with local executive bodies in the field of physical culture and sports; submits a report on the use of budget funds in case of financial support from the state budget to a sports federation for the development of a sport, organization and holding of sports events; is obliged to submit a report to the Ministry on the state of implementation of the cooperation agreement, etc. every year. The peculiarity of the legal status of sports federations in various sports is that they can be created only as non-commercial organizations. At the same time, sports federations can independently or through legal entities created by them carry out entrepreneurial activities, if such activities are not their main activity and correspond to the purpose for which they were created and contribute to its achievement. Conclusion. The legal status of sports federations is hybrid. On the one hand, they are accountable to the central body of executive power - the Ministry of Youth and Sports of Ukraine, and on the other hand, they are autonomous and independently determine the directions of their activities, including: organization and holding of competitions; approval of internal documents and their implementation; implementation of the system of certification of clubs, coaches and other specialists in the field of sports; establishment of institutions, enterprises and organizations to achieve their statutory goals and objectives, participation in civil-law relations, acquisition of property and non-property rights; determination of the mechanism for resolving sports disputes.

Occupying Inherited Land Rights Impllemented Without The Consent of The Heirs

Land rights can be transferred or transferred to other parties. The transfer of land rights means that the ownership of the land rights is transferred by law or by itself. However, in practice, there are many violations of the transfer of land rights without the consent of the heirs. This study will analyze the problem of the transfer of land rights whose object is the object of a land dispute in accordance with the case that occurred in the Supreme Court Decision Number 723 PK/PDT/2017. The purpose of this study is to find out, analyze, and describe: (1) whether the transfer of land rights without the consent of the heirs can be declared valid and has legal force; and (2) what are the legal consequences of the transfer of land rights without expert approval. The results of this study indicate that: (1) The acquisition of property rights to land can occur through inheritance from the heir to his legal heirs in accordance with what is stipulated in the UUPA; and (2) legal protection for heirs whose rights have been impaired on the transfer of rights to inherited land that are controlled and used without the consent of their heirs based on Article 1365 are against the law, so that they are given the right to file a lawsuit in order to defend their inheritance rights by proving that they are legal heirs.

Theoretical and experimental investigation of guided wave temperature compensation for composite structures with different thicknesses

This study presents a novel framework for compensating temperature effects on guided waves in composite structures with different thicknesses, based on both theoretical and experimental investigations. The developed method proposes compensation factors that can be scalable to panels of different thicknesses for composite structures made from the same material. In the theoretical analysis, the relationship between the group velocity and amplitude versus the frequencies and thicknesses are determined by the semi-analytical finite element (SAFE) and tuning curve models. The effects of temperature on group velocity and amplitude are then examined through the acquisition of the temperature-dependent material properties obtained by mechanical tests. The theoretical analysis reveals a consistent trend regarding changes in group velocity and amplitude with temperature for the A0 mode within a specific frequency and thickness range. In the experimental investigation, a temperature database was established by collecting temperature signals from composite structures with a circular sensor layout. These structures possessed thicknesses of 2 mm, 4 mm, and 6 mm, with stacking sequence [0/45/−45/90]ns, n=2,4,6 leading to a quasi-isotropic material behaviour. The scalability of the compensation factors is confirmed by computing the factors for one panel and then applying them to the rest, resulting in effective compensation for temperature differences up to ± 30 °C. Furthermore, the performance of the scalable compensation factors is validated by successfully locating damage even when the current temperature is 30 °C lower than the baseline temperature. By scaling the temperature compensation factors at the panel thickness level and using dimensionless compensation factors derived from one thickness to another, the effect of temperature differences in composite panels with varying thicknesses are effectively compensated. This approach requires less baseline temperature data and enhances the damage localization performance, making it applicable to industrial applications where panels of different thicknesses are commonly utilized.

Targeting Wnt/β-catenin-mediated upregulation of oncogenic NLGN3 suppresses cancer stem cells in glioblastoma

Glioblastoma (GBM) is the most malignant tumor in brain and is highly resistant to therapy. Clinical evidence suggests increased number of cancer stem cells (CSCs) may contribute to the failure of conventional therapies, but the mechanisms associated with acquisition of CSC properties in GBM are not fully understood. We found that DAB2IP suppresses CSC properties by targeting the synaptic proteins neuroligin 3 (NLGN3) in GBM. Furthermore, we showed that GBM-derived NLGN3 has an oncogenic function by inducing CSC properties within GBM. Moreover, elevated NLGN3 transcription mediated by Wnt/β-catenin signaling pathway resulted in increased secretion of NLGN3 into the surrounding tumor microenvironment. Both condition media containing NLGN3 and recombinant NLGN3 transformed neighboring cells to CSCs, suggesting NLGN3 as a critical component inducing CSC properties. Furthermore, targeting NLGN3-bearing CSCs using upstream Wnt/β-catenin inhibitors synergistically enhances the efficacy of conventional treatment. Hence, we unveiled the series of regulatory mechanisms for acquisition of CSC properties in GBM progression by Wnt/β-catenin-mediated NLGN3. These results may provide a new targeting strategy to improve the therapeutic efficacy of GBM treatments.

Stem cell properties of cancer cells in ascitic fluid of patients with ovarian cancer: a key to control over cancer progression

Ovarian cancer is considered to be the most malignant and aggressive tumor of the female reproductive system, which is largely associated with early development of malignant ascites and peritoneal carcinomatosis. Cancer cells representing the primary focus, as well as those contained in the ascitic fluid, are extremely heterogeneous in terms of morphological, immunohistochemical, and molecular genetic aspects. Cancer stem cells play a significant role in tumor self-renewal, differentiation, metastasis, and development of chemoresistance.This literature review is aimed at summarizing the available data on cancer stem cells in ovarian cancer and their role in tumor progression. A bioinformatic search was carried out in the PubMed, NCBI, Google Scholar, and eLibrary databases using the keywords “cancer stem cells”, “ovarian cancer”, “malignant ascites”, “chemoresistance”, etc.The data presented in the review make it possible to comprehensively characterize the role of stem cell properties of ovarian cancer cells. The review presents up-to-date information on the molecular and biological parameters of cancer stem cells in ovarian cancer, which are the cellular component of malignant ascites, as well as data from the authors’ studies. Along with this, the article describes modern ideas about the mechanisms of formation of cellular spheroids and their contribution to cancer progression.Cancer stem cells are an extremely promising target in the development of future therapeutic strategies based on the study of signaling pathways in ovarian cancer stem cells, the mechanisms of spheroid formation, and the contribution of immune cells to the acquisition of cancer stem cell properties.

Political Performances of Surviving Oppression

Abstract In light of the societal and structural changes that have occurred in Palestine since the signing of the Oslo Agreements in the 1990s, the present work aims to analyse the enhanced role of individuals and individual actions as opposed to actions led by collective and/or top-down organisations in the unarmed resistance of Palestinian people to the State of Israel, both in the Occupied Palestinian Territory (OPT) and in 1948 Palestine/Israel. To understand the main tracts, limits, and potential of this contemporary trend I resort to the work and ideas developed by Bayat on social nonmovements. A further aim is to highlight how the resistance of the individuals intersects with individual-right movements, to understand the changing relation between the fight for individual rights and the fight against occupation. Hence, an in-depth analysis of the village realities of al-Walaja and al-Laqiya will be provided, by examining land defense in reaction to illegal acquisition of Palestinian property. Moreover, the results will be confronted with the broad events of May 2021, to better understand how new resistance dynamics have unfolded in different local realities as well as nationwide. Nowadays Palestine is marked by geographical, social, political, and religious fragmentation, together with economic difficulties. In such an environment I suggest that individuals adapted to the new reality of NGOs’ aid and relief and, with the boost of social media and the discourse brought forward by Palestinian women, have taken the lead of the leaderless Palestinian resistance, as proved by the events of the Habba of May 2021. As for the claims over individual rights, I believe this new resistance paradigm has the potential to prompt social and political reform, while the capabilities of individuals to practice such resistance in a sustained manner have to be carefully thought out.