Resistance - Science topic

This paper presents a reliability analysis of the punching shear of flat slabs without shear reinforcement. The evaluation is performed for the codes ACI 318, Eurocode 2, Model Code 2010, and ABNT NBR 6118:2014. Six models were used for predicting the punching strength, the design models, the Critical Shear Crack Theory (CSCT), and a Nonlinear Fini...

Keywords development of herbicide resistance molecular background of herbicide resistance biology and physiology of herbicide-resistant weeds competition between resistant and susceptible weeds and crops management of herbicide-resistant weed

This study conducts an experimental exploration and thorough analysis of the influence of annealing on the impact resistance of PLA 3D-printed components. The investigation extends its scope to encompass the influence of printing parameters, specifically layer thickness and infill percentage. The research highlights that the impact resistance of an...

This paper presents a technical-economical optimization by maximizing the ratio between the critical buckling pressure (technical characteristic) and the production cost (economic characteristic) of stiffened cylindrical shells, a basic concept of value analysis. Critical buckling load values were determined using both the Finite Element Method (FE...

This study presents a technique for solving complex bipolar fully fuzzy linear system (FFLS), particularly applicable to an electric circuit. The amount of fuzzy current that flows across the components of an electric circuit, namely resistance, inductance, and capacitance, can be identified by applying the constructed method. In order to solve pos...

We are investigating flows in the viscous-buoyancy balance regime in a converging channel with a cross-section described by a power function y =∼ x^k*z^r , where x and y are the streamwise and spanwise horizontal coordinates, and z is the vertical coordinate. We are interested in the different results depending on whether we use a simplified model...

Deep vertical rotary tillage (DVRT) is a new tillage method which combines the advantages of deep tillage and rotary tillage. However, limited research has been conducted on a critical component of the deep vertical rotary tiller, namely the spiral cutter. In clay loam, there are a lot of large clods in the topsoil layer after tillage, and the cutt...

Quaternary sequences with high 4-adic complexity have attracted widespread attention in communication and cryptography systems. In this paper, for an odd prime p, several new classes of quaternary sequences with even period 2p are constructed by using the Legendre sequences of period p. And the autocorrelation distribution of the new quaternary seq...

Natural products, characterized by huge scaffold diversity, complexity, and bioactivity, have long played a crucial role in drug discovery and development, particularly as anticancer and anti-infective agents [...]

This article commemorates the anniversary of the Jin Jian Azadi uprising (JJA) in Iran by exploring the working conditions encountered by Iranian women. It delves into the lessons drawn from a year-long resistance and proposes a path toward the empowerment of working women in Iran.

Surgical site infections are worldwide problems in the field of surgery contributing to increased mortality and morbidity. However, despite advances in the control of surgical site infections, the risk of acquiring these infections had not fully been eliminated due to the emergence and spread of resistant bacteria pathogens. The aim of this study w...

El projecte d’eixample d’Ildefons Cerdà per al pla de Barcelona proposava un traçat il·limitat basat en una retícula moderna de carrers amplis i grans illes edificades. Una característica del traçat era l’homogeneïtat de la forma urbana. Factors com l’activitat agrícola prèvia, però, van condicionar el creixement de l’Eixample en dos teixits urbans...

Ascon is the final winner of the lightweight cryptography standardization competition (2018 − 2023). In this paper, we focus on preimage attacks against round-reduced Ascon. The preimage attack framework, utilizing the linear structure with the allocating model, was initially proposed by Guo et al. at ASIACRYPT 2016 and subsequently improved by Li...

Studying the geographic distribution of host species of spittlebugs facilitates the development of monitoring and control strategies for these pests. The aim of this work is to report the association of Mahanarva spectabilis (Distant) on Urochloa brizantha cv. Piatã in the state of Acre, Brazil. This cercopid is a grass-sucking insect and was regis...

Individuality represents an inherent quality acquired through resistance to individ-uation, which is the process of becoming distinct or separate through evolutionary mechanisms. Unlike the individuated state, individuality exists as a dialectic space characterized by dynamic disorder (chaos), stemming from the principle of uncertainty.

The clinician-rated Yale-Brown Obsessive Compulsive Scale (Y-BOCS) is a widely used assessment tool for obsessive-compulsive disorder (OCD). However, the measurement invariance (MI) properties of the Y-BOCS, a prerequisite for group or time point comparisons in clinical research, have received little attention in previous studies. In this study, we...

In this brief paper, a novel set of correlations for the drag, lift and torque coefficients for non-spherical particles of irregular shape is proposed. Such correlations are developed for a sphericity range between 0.7 and 0.95 and for intermediate Reynolds numbers in the range , common in industrial and environmental processes.

This paper presents the results of a test of epoxy anticorrosion coating repair. Two strategies of coating repair were studied, respectively: partial repair and integral repair. The gloss loss rate, color difference and rust area rate of the repair coating were measured. The anticorrosion performance of repair coatings under different repair method...

This research mainly focus on the evolution of microstructure, texture and corrosion resistance of Mg-Zn-Ca-Mn biodegradable alloy during friction stir processing.

Neste ensaio, reflito sobre as etapas de um processo de pesquisa em criação cênica no qual a máscara, a ciborgue e a quimera são figurações de uma serpente mítica que me conduzem a uma poética disparada por gatilhos diversos: memórias de infância, ancestralidades, estudos teóricos, experiências de estranhamento e de estrangeiramento, partida e reto...

The microstructure, corrosion resistance and discharge properties of as-extruded Mg–2Zn–1Mn–xY (ZM21–xY, x = 0, 2, 3, 4 wt%) alloys are systematically studied. With the increase in Y/Zn ratio, the extruded ZM21 alloy gradually precipitate of W phase (Mg3Y2Zn3) and the long-period stacking ordered phase (LPSO phase, Mg12YZn). Compared with the Y-fre...

The forest is one of the complex terrestrial ecosystems with landscape-geographic variability. The problem of anthropogenic influence on the environment in general and forest ecosystems in particular is steadily growing. The cause of pollution of all environments with the products of technogenesis, a decrease in biodiversity, a decrease in vegetati...

The Two Weeks in the World research project has resulted in a dataset of 3087 clinically relevant bacterial genomes with pertaining metadata, collected from 59 diagnostic units in 35 countries around the world during 2020. A relational database is available with metadata and summary data from selected bioinformatic analysis, such as species predict...

In four experiments, we tested the boundary conditions of gaze cueing with reference to the resistance to suppression criterion of automaticity. Participants were asked to respond to peripheral targets preceded by a central gaze stimulus. In one condition, gaze direction was random and uninformative with respect to target location (intermixed condi...

With the proliferation of IoT edge devices in recent years, there is a growing demand for lightweight tamper-resistant designs. This paper proposes HW-FF, a history-based bit-transition disturbing mechanism that improves upon the previous research of W-FF and achieves tamper resistance comparable to WDDL, which requires significant circuit modifica...

Extra oral appliances have been used since ages to bring about dental changes, skeletal changes and for anchorage reinforcement. Growth modifications can be done with help of these appliances. This can be done by inhibiting the growth or redirection of the growth. The biomechanics of the extraoral appliances needs to be understood well for using th...

We investigate the phenomenon of overt and null pronominal subjects in simple negative sentences (e.g. Ele não come carne), a well-known context for the null subject in Brazilian Portuguese. We used a spoken language corpus and tried to answer three central questions: (i) are there more overt pronominal or null subjects in negative sentences?; (ii)...

an extremely important argument about our religions

The performance of passive battered piles resisting the embankment-induced lateral soil movements may differ from that of the active battered pile and axially loaded existing vertical piles adjacent to embankment constructions. This study was part of a preliminary feasibility investigation for a reinforcement plan of an actual embankment project, a...

We discuss on room temperature superconductors for LR-circuit at discharges. In the case of discharges for LR-circuit, negative voltage and negative resistance may be induced on the resistor to have zero resistance and diamagnetism. If the resistor is replaced by resistive materials, superconductivity may happen. In the viewpoint of ours within und...

À travers deux romans francophones de l’extrême contemporain, Le Lièvre d’Amérique (2020) de Mireille Gagné et Les Furtifs (2019) d’Alain Damasio, cet article étudie la manière dont le récit du posthumain est susceptible d’apporter un enseignement relatif à la résistance politique via sa fonction gnoséologique, c’est-à-dire sa capacité à véhiculer...

The aims were to compare predicted maximal velocity from load–velocity relationships established with different resisted and assisted loads by different regression analyses to the measured maximal velocity during sprint running, and to compare maximal velocity measured between a robotic pulley system and laser gun. Sixteen experienced male sprinter...

This study proposed a framework of optimal design for flexible cable dome structures based on progressive collapse resistance. First, a quantitative evaluation method for nonlinear robustness based on robustness control theory to reflect the structural progressive collapse resistance was proposed. Second, an actual engineering structure was used as...

This research explored the microstructure, impact energy, density, and electrical properties of Al-doped Cu-3Si-Al ternary alloys. The Cu-3Si-xAl (x: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 1, 1.5, 2, 3, 5 wt%) alloys were prepared via stir-casting method. The effects of aluminium contents on the impact energy, density, electrical conductivity and...

Quantum secure direct communication is an important branch of quantum cryptography. One of the main requirements of quantum secure direct communication is to ensure that no secret information can be stolen. Recently, a bidirectional quantum secure direct communication protocol [Quantum Information Processing 16, 147 (2017)] was proposed. It was bel...

Cylindrical structure is a kind of common protective structure, its internal support is generally homogeneous or rigid, energy absorption buffer ring can effectively improve its impact resistance. In this paper, a comparative study of the impact resistance of cylindrical structures with composite cushioning energy absorption rings under double impa...

In recent years, great progress has been made in the therapy of AML by targeting cellular processes associated with specific molecular features of the disease. Various small molecules inhibiting FLT3, IDH1/IDH2, and BCL2 have already gained approval from the respective authorities and are essential parts of personalized therapeutic regimens in mode...

p>We study the synchronization behavior of a class of identical FitzHugh-Nagumo-type oscillators under adaptive coupling. We describe the oscillators by a circuit model and we provide a sufficient synchronization condition that relies on the shape of the nonlinear conductance's $(i,u)$-curve and the connectivity of the adaptive coupling network. Th...

p>We study the synchronization behavior of a class of identical FitzHugh-Nagumo-type oscillators under adaptive coupling. We describe the oscillators by a circuit model and we provide a sufficient synchronization condition that relies on the shape of the nonlinear conductance's $(i,u)$-curve and the connectivity of the adaptive coupling network. Th...

The results of electron-beam processing of Mn-Zn ferrite samples using pulsed and continuous electron beams in the forevacuum pressure range (10 Pa) are presented. We find that continuous electron-beam processing leads to surface structuring of the ferrite, changes in elemental composition on the surface, and electrical property modification. The d...

In this paper, we present an emerging class of cubically symmetric mechanical metamaterials based on 3-space geometrical shadows of 4th-dimensional geometries (4-polytopes) that are optimized for high shear resistance and minimized weight. We show that by employing a genetic algorithm-based optimization framework, the mechanical metamaterials can a...

Internal erosion is the transportation of soil particles from within or beneath geotechnical structures, caused by seepage flow, that impacts the subsequent mechanical and hydraulic behaviour of the soil. However, it is difficult to predict the liquefaction resistance of eroded soil due to several factors related to the soil fabric. The present stu...

Graphic abstract of Synergistic effects of suppress resistance of cypermethrin and chlorpyrifos in the cotton leafworm, Spodoptera littoralis (Boisduval) populations in Egypt

O uso de fibras aprimora as características de tração e fissuração do concreto, sendo a influência na porosidade e durabilidade da matriz pouco explorada. Estudos mostram que certos teores de fibra podem o facilitar o transporte de cloretos, enquanto outras fibras podem se compactar melhor e aperfeiçoar o desempenho. Assim, esta pesquisa objetiva e...

This study studied the most important problems that may be exposed to the Al-Askarian underpass in the province of Najaf. The length of the tunnel is 507 m. It is divided into two parts according to the number of test pits, and each part is divided into 17 parts depending on the locations of the joints in the tunnel. During the construction process...

Laboratory model tests were performed to investigate the behavior of shallow and inclined skirted foundations placed on sandy soil with R.D%=30 and the extent of the impact of the positive and negative eccentric-inclined loading effect on them. To achieve the experimental tests, it was used a box of (600×600) mm cross-sectional and 600mm in height...

Plant-Derived l-Theanine for Ultraviolet/Ozone Resistant Perovskite Photovoltaics

Many researchers tried to improve asphalt mixtures by substituting small amounts of binder with additives to decrease distress. Since highway pavements are usually subjected to various types of distress due to exposed to high traffic volume and environmental factors. One of the most popular additions in several states is SBS. In recent years, an ex...

Using hot mix asphalt (HMA) and recycled asphalt pavement (RAP) simultaneously has many technological benefits. At all service temperatures, moisture damage is a hazard with these mixes. Thus, moisture's effects on mixtures' effectiveness were studied using experimental techniques, such as the tensile strength ratio (TSR). Four different ratios of...

This article comments on: Mutinda S, Mobegi FM, Hale B, Dayou O, Ateka E, Wijeratne A, Wicke S, Bellis ES, Runo S. 2023. Resolving intergenotypic Striga resistance in sorghum. Journal of Experimental Botany 74, 5294–5306.

This systematic review explores the utilization of educational apps and online platforms in Home Economics learning, focusing on investigating students' attitudes and perceptions towards these digital learning tools. As the world increasingly embraces technology in education, Home Economics, an essential subject that empowers students with practica...

In this study, LiFe1− xPbxPO4 (x = 0–0.12) powders were successfully produced by solid-state technique. The XRD patterns of the samples exhibit that the main phase is LiFePO4 with minor impurity phases of PbO and Fe2O3 in the structure, in which the phase ratio of PbO increases with increasing doping content. Four probe electrical resistance measur...

The polyaneuploid cancer cell (PACC) state promotes cancer lethality by contributing to survival in extreme conditions and metastasis. Recent experimental evidence suggests that post-therapy PACC-derived recurrent populations display cross-resistance to classes of therapies with independent mechanisms of action. We hypothesize that this can occur t...

Transverse stiffeners are used in steel plate girders with slender webs to provide lateral support to the web along the span and thus increase the plate girder shear resistance. Furthermore, transverse stiffeners anchor the tension field, resulting in axial compression in the stiffener. Despite this, it is widely assumed that the design axial force...

Today’s intruders usually send attacking commands to a target system through several stepping-stone hosts, for the purpose of decreasing the probability of being caught. Using stepping-stone intrusion (SSI), the intruder’s identity is very difficult to discover as it is concealed by a long interactive connection chain of hosts. An effective approac...

Stiffened plates may be loaded by axial forces in two directions, i.e., along and transverse to the stiffeners, by in‐plane shear force, and by out‐of‐plane loads as from traffic or water pressure. Special care must be taken for buckling effects caused by the compressive in‐plane forces. The buckling behaviour of plates stiffened with four trapezoi...

This study examines the effectiveness of an electrical trainer for teaching fundamental electrical and electronics concepts related to serial and parallel circuits, Ohm's Law, and Kirchhoff's Laws. The electrical trainer consists of a power source, metering section, serial circuit, parallel circuit, voltage divider circuit, and switch on and off. T...

Individuals undergoing hematopoietic stem cell transplantation are a peculiar group of patients in whom the risk of developing infectious complications is very high. Various groups of antimicrobials are used for prophylaxis and therapy, but the growing resistance among bacterial isolates is about to derail all attempts to prevent severe infectious...

Experience shows that the separation of curriculum and instruction can seriously block the process of curriculum reform. In the context of the new round of elementary education reform, curriculum and instruction plans should involve developing in an integrated way to implement the goal of students’ key competencies. Therefore, there is great value...

The physical pictures of the electron pairing structure and pairing mechanisms in superconductors are reviewed. An initial idea for a new physical picture of the origin and nature of the pairing is proposed. The idea is based on the assumption that the electron is no longer a single fundamental but a composite particle. This property is hidden in t...

The present studies reveal the polyphenol profile, antioxidant potentials, and the inherent percent moisture content in the ten different varieties of maize grains (kernels) collected from local regions which may influence their yield (produce) and their resistance to pathogens including toxigenic fungal species such as Aspergillus, Fusarium, and P...

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