Preliminary experimental results of gas recycling subsystems except carbon dioxide concentration

Oxygen concentration and separation is an essential factor for air recycling in a controlled ecological life support system (CELSS). Furthermore, if the value of the plant assimilatory quotient is not coincident with that of the animal respiratory quotient, the recovery of oxygen from the concentrated CO2 through chemical methods will become necessary to balance the gas contents in a CELSS. Therefore, oxygen concentration and separation equipment using Salcomine and O2 recovery equipment, such as Sabatier and Bosch reactors, were experimentally developed and tested

Single crystal field-effect transistors based on an organic selenium-containing semiconductor

We report on the fabrication and characterization of single crystal field-effect transistors (FETs) based on diphenylbenzo diselenophene (DPh-BDSe). These organic field-effect transistors (OFETs) function as p-channel accumulation-mode devices. At room temperature, for the best devices, the threshold voltage is less than -7V and charge carrier mobility is nearly gate bias independent, ranging from 1cm2/Vs to 1.5 cm2/Vs depending on the source-drain bias. Mobility is increased slightly by cooling below room temperature and decreases below 280 K

Competing Ground States of a Peierls-Hubbard Nanotube

Motivated by iodo platinum complexes assembled within a quadratic-prism lattice, [Pt(C$_2$H$_8$N$_2$)(C$_{10}$H$_8$N$_2$)I]$_4$(NO$_3$)$_8$, we investigate the ground-state properties of a Peierls-Hubbard four-legged tube. Making a group-theoretical analysis, we systematically reveal a variety of valence arrangements, including half-metallic charge-density-wave states. Quantum and thermal phase competition is numerically demonstrated with particular emphasis on doping-induced successive insulator-to-metal transitions with conductivity increasing stepwise.Comment: 6 pages, 4 figures. to be published in Europhys. Lett. 87 (2009) 1700

Synchronisation schemes for two dimensional discrete systems

In this work we consider two models of two dimensional discrete systems subjected to three different types of coupling and analyse systematically the performance of each in realising synchronised states.We find that linear coupling effectively introduce control of chaos along with synchronisation,while synchronised chaotic states are possible with an additive parametric coupling scheme both being equally relevant for specific applications.The basin leading to synchronisationin the initial value plane and the choice of parameter values for synchronisation in the parameter plane are isolatedin each case.Comment: 17 pages 8 figures. submitted to physica script

6,7,6′,7′-Tetra­phenyl-2,2′-bi[1,3-dithia-5,8-diaza­cyclo­penta­[b]naphthalenyl­idene] chloro­form disolvate

The title compound, C42H24N4S4·2CHCl3, a symmetrical tetra­thia­fulvalene (TTF) derivative, was prepared by a tri­ethyl­phos­phite-mediated self-coupling reaction of 6,7-diphenyl-1,3-dithia-5,8-diaza­cyclo­penta­[b]napthalen-2-one. The asymmetric unit contains two TTF mol­ecules and four chloro­form solvent mol­ecules. Cl⋯Cl inter­actions [contact distances = 3.263 (1)–3.395 (2) Å] are present between the solvent mol­ecules, resulting in a tape along the bc plane. The crystal packing features weak C—H⋯Cl and C—H⋯N hydrogen bonds, resulting in the formation of a two-dimensional supramolecular network

The influence of particle surface roughness on elastic stiffness and dynamic response

Discrete-element method (DEM) simulations of planar wave propagation are used to examine the effect of particle surface roughness on the stiffness and dynamic response of granular materials. A new contact model that considers particle surface roughness is implemented in the DEM simulations. Face-centred cubic lattice packings and random configurations are used; uniform spheres are considered in both cases to isolate fabric and contact model effects from inertia effects. For the range of values considered here surface roughness caused a significant reduction in stiffness, particularly at lower confining stresses. The simulations confirm that surface roughness effects can at least partially explain the value of the exponent in the relationship between stiffness and mean confining stress for an assembly of spherical particles. Frequency domain analyses showed that the maximum frequency transmitted through the sample is reduced when surface roughness is considered. The assumption of homogeneity of stress and contacts in analytical micromechanical models is shown to lead to an overestimation of stiffness

Diagnosis and Treatment of Generalized Anxiety Disorder in Japan: Psychiatric Specialist Survey

Keisuke Nomoto,1 Osamu Takashio,2 Satoshi Matsuyama,1 Shingo Higa,1 Tempei Otsubo3 1Medical Affairs, Viatris Pharmaceuticals Japan Inc., Tokyo, Japan; 2Department of Neuropsychiatry, Showa University East Hospital, Tokyo, Japan; 3Department of Psychosomatic and Psychiatric Medicine, Tokyo Women’s Medical University Adachi Medical Center, Tokyo, JapanCorrespondence: Keisuke Nomoto, Medical Affairs, Viatris Pharmaceuticals Japan Inc., Holland Hills Mori Tower, 5-11-2 Toranomon, Minato-ku, Tokyo, 105-0001, Japan, Tel +81-3-5656-0400, Fax +81-3-5656-0603, Email [email protected]: Generalized anxiety disorder (GAD) is a suboptimally managed chronic recurring psychiatric condition with a lifetime prevalence of 2.6% in Japan. We assessed the current status of GAD management in Japan.Patients and Methods: This was an observational, cross-sectional study conducted through an anonymous web-based survey in Japan from December 12– 16, 2022. Psychiatrists and psychosomatic medicine physicians who agreed to participate and saw ≥ 10 outpatients in the previous month were eligible. Survey questionnaire comprised 37 single/multiple choice, numerical entry, or open-ended questions in Japanese.Results: Among 509 participants (493 psychiatrists and 16 psychosomatic medicine physicians), 96.9% were aware of GAD. On average, 12.4 outpatients and 1.0 inpatient were diagnosed with GAD per physician per month. Of 433 physicians having patients diagnosed with GAD, 46.9% used operational diagnostic tools; among these, DSM-5 diagnostic criteria were used by 81.5% physicians. The majority (54.7%) of participants did not use a self-administered rating scale; depression scales were used more than anxiety scales. Among these 433 physicians, 96.8% used selective serotonin reuptake inhibitors for GAD management, and 79.2% used it as the first choice; of 431 physicians who prescribed drug therapy, 54.3% gave antidepressant monotherapy as first choice. The most frequent symptom in patients diagnosed with GAD was excessive anxiety/worry (96.5%); depression was the most commonly reported comorbidity (84.3%) as per physicians aware of GAD (N=508).Conclusion: This study illustrates that although GAD awareness is high among Japanese psychiatric specialists, GAD is not frequently diagnosed using operational diagnostic approaches. Due to a lack of Japanese guidelines for GAD diagnosis and treatment, diverse international guidelines are followed, with similar treatment paradigms as that of depression. This may not be an optimal approach given cultural/geographical differences. These findings highlight the need for uniform diagnosis and treatment recommendations for GAD management in Japan.Clinical Trial Registration: UMIN-CTR: UMIN000049572.Keywords: anxiety, GAD, psychiatrist, psychosomatic medicine physician, surve