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The chapter explores the application of restraint of trade, a common law notion, to professional tennis, particularly as pertains to relations between agents and players. The chapter goes on to show the regulation of restraint of trade in the English common law and then applies its findings to sport law more generally. It goes on to identify restraints arising from national federations and state regulation, as well as those emerging from contractual relations between players and agents. The chapter then proceeds to apply the concept to professional tennis, particularly in respect of agency agreements with a focus on the Zverev case before the courts of England. The chapter also ponders whether restrictions in national team selections as well as bans imposed by transnational tennis stakeholders have the same or similar effect as the aforementioned restraints.
This systematic review aims to update the current evidence on the effects of institutionalisation in minors living in residential care homes, specifically focusing on alterations in neuronal systems and their association with psychopathological and neuropsychological outcomes.
Methods:
Searches were conducted in the Web of Science, Scopus, PubMed, and Google Scholar databases, following PRISMA methodology for peer-reviewed empirical articles. The final selection comprised 10 studies that met the inclusion criteria: (1) published articles with quantitative data, (2) aimed at observing the relationship between psychological and neuropsychological symptoms and the electroencephalogram (EEG) activity in institutionalised children, (3) published between 2016 and 2023, and (4) examining institutionalised minors in residential care homes.
Results:
The articles show that these children exhibit general immaturity in EEG patterns, with a predominance of slow waves (primarily in the theta band). They also demonstrate poorer performance in executive functions (e.g. working memory, inhibition, and processing speed) and cognitive processes, along with a higher risk of externalising problems. However, current evidence does not allow definitive conclusions on whether early EEG abnormalities predict long-term neuropsychological deficits, despite data showing associations between EEG changes and certain cognitive dysfunctions at the time of evaluation.
Conclusion:
The reviewed evidence suggests that EEG alterations in institutionalised minors are linked to executive dysfunction and increased psychopathological risk. These findings highlight the value of EEG in identifying at-risk children and inform the design of preventive interventions. Longitudinal studies are needed to clarify causal relationships.
This commentary analyzes the recent attacks on adolescents’ access to contraception by religious and parental rights activists and the conservative legal movement. Specifically, we focus on Deanda v. Becerra, a 2024 case in which the Fifth Circuit Court of Appeals held that a Texas state law requiring parental consent for minors to access contraception is not preempted by a longstanding policy under Title X of the federal Public Health Service Act that prohibits clinics receiving federal funding from requiring parental consent or notification. We first describe existing laws governing minors’ confidential access to reproductive health care, including the federal constitutional framework for parental rights, state parental notification and consent laws, and Title X, the federal law that provides federal funds to reproductive health care clinics for low-income people. We then examine and critique the Federal District Court ruling in Deanda, which elevated individual religious and parental rights over public health concerns, and the Fifth Circuit Court of Appeals decision in that case, which undermined federal public health authority and jeopardized access to reproductive health care for low-income adolescents. Finally, we assess the public health and reproductive rights implications of restricted access to reproductive health care for minors and consider possible future directions and advocacy opportunities for reproductive, public health and legal advocates to promote continued access to contraception for adolescents despite mounting legal challenges.
We present four cases of male genital schistosomiasis (MGS) within children and adolescents opportunistically encountered as part of a wider screening programme for imported schistosomiasis in Germany and community outreach screening in Mali. Such genital manifestations in young children and adolescents are often overlooked but can include hydrocele, hypogonadism, varicocele, cutaneous granulomata on the penis and scrotum, echogenic spots in the prostate and the epididymis, alongside testicular masses. Though these cases appear sporadic, from our scoping literature review, they draw fresh attention on MGS in young children and highlight wider confusion with other congenital, neoplastic and infectious disease. These might include an insufficient closure of the tunica vaginalis, malignancies or lymphatic filariasis. Frequently haematuria is not present. One typical sign indicating MGS in adults, i.e. haematospermia is not present before puberty. Another reason of missing MGS cases may be that screening with scrotal or transabdominal ultrasonography are not easily accepted unless the reason for it is not extensively explained beforehand and that transabdominal ultrasonography is less sensitive for revealing prostatic lesions than transrectal ultrasonography.
We show that many graphs with bounded treewidth can be described as subgraphs of the strong product of a graph with smaller treewidth and a bounded-size complete graph. To this end, define the underlying treewidth of a graph class $\mathcal{G}$ to be the minimum non-negative integer $c$ such that, for some function $f$, for every graph $G \in \mathcal{G}$ there is a graph $H$ with $\textrm{tw}(H) \leqslant c$ such that $G$ is isomorphic to a subgraph of $H \boxtimes K_{f(\textrm{tw}(G))}$. We introduce disjointed coverings of graphs and show they determine the underlying treewidth of any graph class. Using this result, we prove that the class of planar graphs has underlying treewidth $3$; the class of $K_{s,t}$-minor-free graphs has underlying treewidth $s$ (for $t \geqslant \max \{s,3\}$); and the class of $K_t$-minor-free graphs has underlying treewidth $t-2$. In general, we prove that a monotone class has bounded underlying treewidth if and only if it excludes some fixed topological minor. We also study the underlying treewidth of graph classes defined by an excluded subgraph or excluded induced subgraph. We show that the class of graphs with no $H$ subgraph has bounded underlying treewidth if and only if every component of $H$ is a subdivided star, and that the class of graphs with no induced $H$ subgraph has bounded underlying treewidth if and only if every component of $H$ is a star.
In France, the 2021 Act regarding sexual offences recognized incest as an autonomous offence. Previously, the French Penal Code traditionally prohibited incest as an aggravating circumstance based upon minority or the family relationship between the perpetrator and the victim. The problem was that, according to the strict construction principle, the judges had to determine the sexual offence, in turn supporting the aggravating circumstance of incest. To do so, they had to look for the evidence of the lack of consent determined by “violence, constraint, threaten or surprise”. The 2021 Act is the conclusion of several controversial reforms considering this issue.
On May 16 2002, the Belgian parliament approved the original law permitting euthanasia. The law was voted in after three years of debate in parliament and within the Federal Advisory Committee on Bioethics. The focus of this chapter is an issue which has been of particular interest in recent public debates internationally: the extension of the law in 2014 to permit minors with ‘capacity of discernment’ to have access to euthanasia. Although the law now theoretically applies to Belgians of all ages, in reality, euthanasia for minors will be limited to older adolescents. This chapter considers how the issue of children’s access to euthanasia came to be considered and the process of reform including the positions and arguments of different entities. Also considered is parliament’s rationale for this change in the law. Of particular significance in the reform process was the view that the age barrier for euthanasia was perceived as arbitrary. The prime qualifier for a valid, well-considered and competent request should not be chronological age but mental age and maturity.
What happens if you try to develop matroid theory, but start with topological graph theory? This survey provides an introduction to delta-matroids. We aim to illustrate the two-way interaction between graph theory and delta-matroid theory that enriches both subjects. Along the way we shall seeintimate connections between delta-matroids and, amongst others, circle graphs, Eulerian circuits, embedded graphs, matchings, pivot-minors, (skew-)symmetric matrices, and vertex-minors.
Use of the best-interests test as the legal standard to justify medical treatment (or its cessation) in respect to legally incompetent adults or minors has come under sustained critique over the years. “Best interests” has variously been alleged to be indeterminate as well as susceptible to majoritarian ideology and inherent bias. It has also been alleged to be inferior to rights-based approaches. Against the background of several particularly hard cases involving minors discussed by Gillett in a prior article in this journal, this article considers some of these critiques. It concludes that these critical accounts make significant contributions to enabling a more procedurally and substantively robust consideration of what might be in a child’s best interests. However, it is argued that none of these accounts alone provide a superior framework that would justify jettisoning the concept of best interests. Further, it is suggested that best interests still has an important role in achieving patient-centered decisionmaking in this context. It concludes by suggesting a taxonomy of considerations when determining best interests.
Lower semi-continuity results for polyconvex functionals of the calculus of variations along sequences of maps u: Ω ⊂ ℝn → ℝm in W1,m, 2 ⩽ m⩽ n, weakly converging in W1,m-1, are established. In addition, for m = n + 1, we also consider the autonomous case for weakly converging maps in W1,n-1.
Professionals who are likely to come into contact with children play an essential role in the protection of children, thus we aimed to study the criteria they use to identify and report child sexual abuse cases. Based on the Factorial Survey design, we presented 974 Spanish (90%) and Latin American professionals from six fields (Psychology, Social Services, Education, Health, Law and Security) with hypothetical situations of sexual interaction with minors (systematically varying the type of sexual act, the child's and the other person's sex and age, the use of coercion and the type of strategy employed to involve the child), in order to examine their perception of abuse and willingness to report. According to results, the factors or criteria that most impact assessments are age asymmetry and use of coercion. Specifically, professionals are significantly more likely to perceive abuse and intend to report it if the other person involved in the interaction is much older than the minor and/or uses a coercive strategy, especially force, drugs or blackmail. Another relevant criterion is the type of sexual act, since acts involving intercourse, digital penetration or oral sex are significantly more likely to be deemed as abuse and reported.
We prove an upper bound on sums of squares of minors of $\{+1, -1\}$-matrices. The bound is sharp for Hadamard matrices, a result due to de Launey and Levin [‘$(1,-1)$-matrices with near-extremal properties’, SIAM J. Discrete Math.23(2009), 1422–1440], but our proof is simpler. We give several corollaries relevant to minors of Hadamard matrices.
The Iran-United States Claims Tribunal's recent decision in Sabet and The Islamic Republic of Iran sheds new light on difficult issues concerning the dual nationality of minors. In particular, the case was the first in which the Tribunal determined minor dual national claimants to have a dominant and effective nationality different from that of either of their parents. Further, the Tribunal broke new ground in its analysis of ‘the caveat,’ an equitable doctrine that can bar the claims of dual nationals. This article applauds the Tribunal's advances in its caveat jurisprudence and develops a new approach that would further those advances.
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