An Integrative Review of Cross-National Comparisons of Verbal, Relational, and Physical Peer Victimization: Gender Differences, Paradoxical Anti-Bullying Attitudes, and Well-Being

Current victimization studies and meta-analyses are based mainly on a unidimensional perspective in a few developed OECD countries. This provides a weak basis for generalizability over multiple victimization (relational, verbal, physical) components and different countries. We test the cross-national generalizability (594,196 fifteen-year-olds; 77 countries) of competing victimization models. In support of our three-component model, differentiating the multiple components of victimization facilitated understanding: gender differences (girls experience less physical and verbal victimization and stronger anti-bullying attitudes, but relational differences are small); paradoxical anti-bullying attitudes (physical victims have less –not more--anti-bullying attitudes); and well-being (policy/practice focuses primarily on physical victimization, but verbal and relational victimization effects are larger). These key findings provide theoretical advances with implications for policy, practice, and intervention.

Rule Reductions of Decision Formal Context Based on Mixed Information

Three-way concept lattice extracts knowledge from positive and negative information separately. However, some applications require to mix positive and negative information for management and representation explicitly. In this paper, rule acquisition of FCA is extended based on mixed information. Firstly, two types of mixed concept lattices are studied. Then the relationships between mixed concept and classical concept, three-way concept are explored in depth. Secondly, mixed decision rules are investigated thoroughly. And the weak-basis is put forward to approximate to the basis of mixed decision rules. Finally, the comparison of mixed decision rules and three-way decision rules is perfectly discussed.

Ensuring the reliability of pavements in the repair and reconstruction of existing cement-concrete pavements destroyed by vibroresonance on a weak basis

Repair and reconstruction of existing ce-ment-concrete pavements of hard pavements should be performed based on the results of the assessment of the condition of the pavement, assessment of their suitability as a basis for new layers and especially when reinforced with asphalt concrete layers. The article presents a method of determining the actual total modulus of elasticity of pavement, using static and dynamic stamping equipment and evaluating the results of measuring the modulus of deformation and elasticity of the concrete base at different passes of the vibrating cavity to decide on the method of re-pair. It is concluded that with a weak base, the vibroresonance method is unsuitable and stress relief should be used with a minimum number of passes of destructive equipment.

DsixTools 2.0: the effective field theory toolkit

is a package for the handling of the standard model effective field theory (SMEFT) and the low-energy effective field theory (LEFT) with operators up to dimension six, both at the algebraic and numerical level. contains a visually accessible and operationally convenient repository of all operators and parameters of the SMEFT and the LEFT. This repository also provides information concerning symmetry categories and number of degrees of freedom, and routines that allow to implement this information on global expressions (such as decay amplitudes and cross-sections). also performs weak basis transformations, and implements the full one-loop Renormalization Group Evolution in both EFTs (with SM beta functions up to five loops in QCD), and the full one-loop SMEFT-LEFT matching at the electroweak scale.

Security evaluation of quantum key distribution with weak basis-choice flaws

Quantum key distribution (QKD) can share an unconditional secure key between two remote parties, but the deviation between theory and practice will break the security of the generated key. In this paper, we evaluate the security of QKD with weak basis-choice flaws, in which the random bits used by Alice and Bob are weakly controlled by Eve. Based on the definition of Li et al. (Sci Rep 5:16200, 2015) and GLLP’s analysis, we obtain a tight and analytical bound to estimate the phase error and key rate for both the single photon source and the weak coherent source. Our approach largely increases the key rate from that of the original approach. Finally, we investigate and confirm the security of BB84-QKD with a practical commercial devices.

CP odd weak basis invariants in minimal see-saw model and leptogenesis

In this paper, we derive the relationship between the weak basis invariants (WB) related to CP violation responsible for leptogenesis and CP violation relevant at low energy. We examine all the experimentally viable cases of Frampton-Glashow and Yanagida (FGY) model, in order to construct the WB invariants in terms of left handed Majorana neutrino mass matrix elements, and thus finding the necessary and sufficient condition for CP conservation. Further for all the viable FGY texture zeros, we have shown the explicit dependence of WB invariants on Dirac type and Majorana type CP violating phases. In the end, we discuss the implication of such interrelationships on leptogenesis.

Implications of CP invariants for the flavored hybrid neutrino mass matrix

We re-examine the weak basis invariants at low energies proposed by C. Jarlskog and Branco et al. in their earlier analyses, after confronting them with the assumptions of two zeros and an equality between arbitrary non-zero elements in the Majorana neutrino mass matrix in the flavored basis. This particular conjecture is found to be experimentally feasible, as shown by S. Dev and D. Raj in their recent work. The present analysis attempts to find the necessary and sufficient condition for CP invariance for each experimentally viable ansatz pertaining to the model, along with some important implications.

Students’ Preconceptions in Astrophysics — How to break them down?

At any stage of education, the students begin to study astrophysics with previous incorrect preconceptions that impedes the understanding of new scientific notions. It is a waste of time to add new concepts on a “weak basis”. In this case the duty of any teacher is to spend more time to carefully remove preconceptions from students’ minds. In the present article there are reviewed some of the most common preconceptions of the students when they are learning astrophysics with the right solutions to break them down using some active teaching methods, especially experiments and models.