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Many studies have identified changes in the brain associated with obsessive–compulsive disorder (OCD), but few have examined the relationship between genetic determinants of OCD and brain variation.
We present the first genome-wide investigation of overlapping genetic risk for OCD and genetic influences on subcortical brain structures.
Using single nucleotide polymorphism effect concordance analysis, we measured genetic overlap between the first genome-wide association study (GWAS) of OCD (1465 participants with OCD, 5557 controls) and recent GWASs of eight subcortical brain volumes (13 171 participants).
We found evidence of significant positive concordance between OCD risk variants and variants associated with greater nucleus accumbens and putamen volumes. When conditioning OCD risk variants on brain volume, variants influencing putamen, amygdala and thalamus volumes were associated with risk for OCD.
These results are consistent with current OCD neurocircuitry models. Further evidence will clarify the relationship between putamen volume and OCD risk, and the roles of the detected variants in this disorder.
Declaration of interest
The authors have declared that no competing interests exist.
Properties of the microwave emission from HR1099 are examined in an attempt to determine whether the emission arises as gyro-synchrotron radiation from mildly relativistic electrons trapped in magnetic fields above starspots on the active K subgiant component. It is shown that radio curves do not exhibit a systematic variation in phase with the rotation rate, as one might expect for emission from a source situated above a long-lived starspot. However, there is some evidence that the radio flaring occurs at two preferred longitude zones. Whether these zones agree with starspot locations remains to be determined by light curve modelling. What we can say with confidence is that the measured spectral index of the microwave emission does not fit a simple gyro-synchrotron source model, such as that proposed to explain the observed reversal with frequency of the sense of circular polarization.
Research suggests that the way in which cognitive therapy is delivered is an important factor in determining outcomes. We test the hypotheses in which the development of a shared problem list, use of case formulation, homework tasks and active intervention strategies will act as process variables.
Presence of these components during therapy is taken from therapist notes. The direct and indirect effect of the intervention is estimated by an instrumental variable analysis.
A significant decrease in the symptom score for case formulation (coefficient =–23, 95% CI –44 to –1.7, P = 0.036) and homework (coefficient =–0.26, 95% CI –0.51 to –0.001, P = 0.049) is found. Improvement with the inclusion of active change strategies is of borderline significance (coefficient =–0.23, 95% CI –0.47 to 0.005, P = 0.056).
There is a greater treatment effect if formulation and homework are involved in therapy. However, high correlation between components means that these may be indicators of overall treatment fidelity.
The Iran–United States Claims Tribunal (Tribunal) has functioned in the Hague since 1981. To date, the Tribunal has completed its work in over thirty-nine hundred cases, making it one of the most significant claims settlement efforts in history. Remaining on the Tribunal’s docket are several very large and complex claims between the Islamic Republic of Iran and the United States of America.
When does an agreement to arbitrate a commercial dispute constitute a waiver of sovereign immunity? This question has assumed increasing importance over the past decades in direct proportion to the extent that sovereign states and their agencies, entities, and instrumentalities have agreed to arbitrate their disputes with investors and under commercial contracts. On August 19, 2013, the United States Court of Appeals for the Second Circuit considered this issue in the context of a petition to confirm an arbitral award, when it ruled that by becoming a party to the Convention on the Settlement of Investment Disputes between States and Nationals of Other States (ICSID Convention), Argentina had waived its sovereign immunity under the Foreign Sovereign Immunities Act (FSIA).
Background: Research suggests that core schemas are important in both the development and maintenance of psychosis. Aims: The aim of the study was to investigate and compare core schemas in four groups along the continuum of psychosis and examine the relationships between schemas and positive psychotic symptomatology. Method: A measure of core schemas was distributed to 20 individuals experiencing first-episode psychosis (FEP), 113 individuals with “at risk mental states” (ARMS), 28 participants forming a help-seeking clinical group (HSC), and 30 non-help-seeking individuals who endorse some psychotic-like experiences (NH). Results: The clinical groups scored significantly higher than the NH group for negative beliefs about self and about others. No significant effects of group on positive beliefs about others were found. For positive beliefs about the self, the NH group scored significantly higher than the clinical groups. Furthermore, negative beliefs about self and others were related to positive psychotic symptomatology and to distress related to those experiences. Conclusions: Negative evaluations of the self and others appear to be characteristic of the appraisals of people seeking help for psychosis and psychosis-like experiences. The results support the literature that suggests that self-esteem should be a target for intervention. Future research would benefit from including comparison groups of people experiencing chronic psychosis and people who do not have any psychotic-like experiences.
Internalised stigma in young people meeting criteria for at-risk mental states (ARMS) has been highlighted as an important issue, and it has been suggested that provision of cognitive therapy may increase such stigma.
To investigate the effects of cognitive therapy on internalised stigma using a secondary analysis of data from the EDIE-2 trial.
Participants meeting criteria for ARMS were recruited as part of a multisite randomised controlled trial of cognitive therapy for prevention and amelioration of psychosis. Participants were assessed at baseline and at 6, 12, 18 and 24 months using measures of psychotic experiences, symptoms and internalised stigma.
Negative appraisals of experiences were significantly reduced in the group assigned to cognitive therapy (estimated difference at 12 months was −1.36 (95% Cl −2.69 to −0.02), P = 0.047). There was no difference in social acceptability of experiences (estimated difference at 12 months was 0.46, 95% Cl −0.05 to 0.98, P = 0.079).
These findings suggest that, rather than increasing internalised stigma, cognitive therapy decreases negative appraisals of unusual experiences in young people at risk of psychosis; as such, it is a non-stigmatising intervention for this population.
The U.S. Supreme Court has finally decided Kiobel v. Royal Dutch Petroleum Co. It is the Court’s second modern decision applying the cryptic Alien Tort Statute (ATS), which was enacted in 1789. Since the 1980 court of appeals decision in Filartiga v. Pena-Irala permitting a wide of range human rights cases to go forward under the statute’s auspices, the ATS has garnered worldwide attention and has become the main engine for transnational human rights litigation in the United States. The statute itself and the decisions that it generates also serve as state practice that might contribute to the developing customary international law of civil universal jurisdiction, immunity for defendants in human rights cases, the duties of corporations, and the right to a remedy for violations of fundamental human rights. During the 1990s, the ATS became the focal point for academic disputes about the status of customary international law as federal common law. Indeed, to the extent that the “culture wars” have played out in U.S. foreign relations law, the ATS has been their center of gravity.