Exact-diagonalization results for Kondo nanoclusters alloyed with mixed-valence impurities show that tuning the energy spacing D drives the system from the Kondo to the Ruderman-Kittel-Kasuya-Yosida (RKKY) regime. The interplay of D and disorder gives rise to a D versus concentration T=0 phase diagram very rich in structure. The parity of the total number of electrons alters the competition bet...

The magneto-transport properties are systematically measured under c-direction fields up to 33 T for a series of single-crystal films intercalated iron-selenide superconductor (Li,Fe)OHFeSe. film samples with varying degree disorder grown hydrothermally. We observe magnetic-field-enhanced shoulder-like feature in the mixed state high-Tc (Li,Fe)OHFeSe weak disorder, while fades away enhanced dis...

Mania and depression are seen as clinical syndromes of opposite polarities. It is known, according to the observations described by Kraepelin,1 that the association of manic or hypomanic symptoms with depressive ones is not infrequent, especially among patients who have BD conditions deemed severe. Besides, their treatment is more difficult due not only to the mixed symptomatology, but also to ...

Background: In the treatment of bipolar disorder in youths, often more than one medication should be prescribed. In the current study, we compared the efficacy and tolerability of the combination of lithium and quetiapine with lithium and risperidone in the treatment of manic or mixed episodes in children and adolescents. Methods: Thirty patients (aged 10-18 years) who were hospitalized for ...

OBJECTIVE Comorbid anxiety disorder is reported to increase suicidality in bipolar disorder. However, studies of the impact of anxiety disorders on suicidal behavior in mood disorders have shown mixed results. The presence of personality disorders, often comorbid with anxiety and bipolar disorders, may explain these inconsistencies. This study examined the impact of comorbid Cluster B personali...

Amygdala-Hippocampal Volume and the Phenotypic Heterogeneity of Posttraumatic Stress Disorder: A Cross-Sectional Study The amygdala and hippocampus have been implicated consistently in the pathophysiology of posttraumatic stress disorder (PTSD).1,2While several studies have observed reduced hippocampalvolume inPTSD, studiesofamygdalavolumeand PTSD have been mixed.1-3 In addition to method diffe...

Schizophrenia and bipolar disorder are associated with significant morbidity and mortality. Although atypical antipsychotics reduce positive and negative symptoms of schizophrenia as well as manic or mixed episodes of bipolar disorder, they are associated with varying degrees of metabolic adverse effects. This necessitates continued development of efficacious yet metabolically favorable treatme...

Elderly individuals who have bipolar (BP) disorder present a particular challenge to clinicians, health care services, and caregivers. They are a complex and heterogeneous group of patients who frequently have comorbidities and poor outcomes, including a high mortality rate. BP elders represent 5% to 19% of patients presenting for acute treatment at geriatric psychiatry services [1,2]. They use...

BACKGROUND Cognitive deficits associated with mood disorders, especially bipolar disorder, have been the focus of limited systematic investigation. METHODS We tested 35 bipolar (21 in depressed state and 14 in mixed or manic state) and 58 nonbipolar depressed consecutively admitted young adult inpatients and 51 matched healthy individuals on the Cambridge Neuropsychological Test Automated Bat...