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The scattered, isolated, and closed nature of rural settlements in northwest Sichuan is a constraint on the high-quality development of rural areas. Determining the spatial differences and driving forces of rural settlements in this area is the essential prerequisite for promoting rural revitalization. In this paper, the methods of the nearest neighbor index, the Voronoi diagram, and the Geodetector are used to analyze the spatial distribution characteristics of rural settlements and explore the driving factors of their spatial differences. The key findings are as follows. (1) The rural settlements exhibit the feature of “an extensive dispersion with localized concentrations”. The spatial distribution is in the shape of dots, strips, and branches along the river valley. (2) The number and land use scale of rural settlements decreases from east to west. The spatial differences in settlement morphology have a clear feature that the settlement morphology along the river and road is more complex, while the settlement morphology in the plateau area and the river valley is relatively regular. (3) Mountain disasters and arable land resources have the greatest impact on the spatial differences of the settlements. The location and form of the settlements are greatly affected by the altitude and accumulated temperature, and the settlement scale is significantly affected by the traffic conditions and the scenic spots. The mutually reinforcing role of the driving factors is remarkable, especially the reinforcing effects of the enhancement between the arable land resources and other factors. The research results provide data support for the reconstruction, improvement, and high-quality development of rural settlements in this region.

We have designed and synthesized three novel benzo[de]isoquinoline-1,3-dione (BQD) condensed asymmetric azaacenes, BQD-TZ, BQD-AP and BQD-PA, with different end groups of 1,2,5-thiadiazole, acenaphthylene and phenanthrene. The triisopropylsilylethynyl groups were grafted to increase the solubility and crystallinity of the three molecules. These molecules have high electron affinity values of 3.87, 3.69 and 3.74 eV for BQD-TZ, BQD-AP and BQD-PA, respectively as confirmed by cyclic voltammetry measurements. Single-crystal X-ray diffraction revealed that these molecules have strong π-π stacking with distances of 3.31-3.41 Å and different stacking arrangements.

The development of lightweight and high-performance microwave absorbers is still a challenge in the field of electromagnetic absorption. Graphene foam with three-dimensional (3D) network structure and low bulk density has been considered as an ideal candidate for microwave absorption. In this work, nitrogen-doped reduced graphene oxide/nickel ferrite composite foams were prepared by the solvothermal and hydrothermal two-step method. The as-prepared composite foams had very low bulk density (7.8 ∼ 10.0 mg·cm

Developing light-weight and high-efficiency electromagnetic wave (EMW) absorbers has been considered as an effective strategy to resolve the electromagnetic radiation pollution problem. Herein, nitrogen-doped reduced graphene oxide/tin oxide (NRGO/SnO2) composite aerogels were facilely prepared through the hydrothermal process and subsequent lyophilization treatment. Morphological characterization results manifested that the attained NRGO/SnO2 composite aerogels possessed unique three-dimensional (3D) porous network structure constituted by the tiny SnO2 nanoparticles decorated wrinkled surfaces of flake-like NRGO. Moreover, excellent EMW absorption performance could be achieved through facilely regulating the additive volumes of ethylenediamine and filler contents. Impressively, the composite aerogel with a doped nitrogen concentration of 6.5 wt% displayed the optimal minimum reflection loss of −62.3 dB at a matching thickness of 3.5 mm and the broadest effective absorption bandwidth of 5.1 GHz under an ultrathin thickness of merely 1.6 mm. Furthermore, the as-synthesized composite aerogels showed a light-weight characteristic with the low bulk density of 19.9–25.7 mg·cm−3. Additionally, the potential EMW absorption mechanisms of obtained composite aerogels were revealed, which were mainly ascribed to the unique 3D porous network structure, synergistic effects between conduction loss and polarization loss, as well as the balanced attenuation loss and impedance matching. This work could be valuable for the structural design and fabrication of 3D graphene-based dielectric composites as light-weight and high-efficiency EMW absorbers.

Author version made available in accordance with publisher copyright. Under 12 month embargo from date of publication [26 September 2014]. This is the accepted version of the following article: [Yang, Y., Xiao, L. D., Deng, L., Wang, Y., Li, M. and Ullah, S. (2014), Nurse-led cognitive screening model for older adults in primary care. Geriatrics & Gerontology International.], which has been published in final form at [doi: 10.1111/ggi.12339]. In addition, authors may also transmit, print and share copies with colleagues, provided that there is no systematic distribution of the submitted version, e.g. posting on a listserve, network or automated delivery.

Author version made available in accordance with Publisher copyright. 12 month embargo from date of publication [Oct 9 2013]. This is the accepted version of the following article: [Yang, Y., Xiao, L. D., Ullah, S. and Deng, L. (2013), General practitioners' knowledge of ageing and attitudes towards older people in China. Australasian Journal on Ageing. ], which has been published in final form at [doi: 10.1111/ajag.12105]. In addition, authors may also transmit, print and share copies with colleagues, provided that there is no systematic distribution of the submitted version, e.g. posting on a listserve, network or automated delivery.

To investigate the effectiveness of open reduction by mini incision and absorbable screw internal fixation for the treatment of anterior cruciate ligament (ACL) tibial eminence avulsion fracture.Between January 2006 and July 2012, 90 patients (90 knees) with ACL tibial eminence avulsion fracture were treated. There were 58 males and 32 females, aged from 10 to 58 years with an average of 33.7 years. The causes of injury were traffic accident injury in 60 cases, sports injury in 22 cases, and fallinginjury in 8 cases. The disease duration was 1-365 days with a median of 106 days. Combined injuries included 14 cases of meniscus injury, 5 cases of medial collateral ligament injury, and 3 cases of avulsion fracture of the anterior horn of the lateral meniscus. All patients underwent open reduction by mini incision and internal fixation with absorbable screw. Postoperative rehabilitation exercise was performed.Two patients had delayed healing of incision, and others obtained primary healing. All the patients were followed up 6-72 months (mean, 40.1 months). X-ray examination showed that bone union was achieved in all patients at 3-12 months after operation; nail tail came off in 7 cases at 4-13 months after operation, and the nail tail was taken out under arthroscopy. At 6-12 months after operation, the range of motion (ROM), Tegner score, Lysholm score, and International Knee Documentation Committee (IKDC) score were significantly increased when compared with preoperative ones (P0.05).A combination of open reduction by mini incision and absorbable screw internal fixation for the treatment of ACL tibial eminence avulsion fracture has the advantages of easy operation, firm fixation, and satisfactory functional rehabilitation, so it is a safe and effective method for the treatment of ACL tibial eminence avulsion fracture.

The present study aimed to establish a nurse-led cognitive screening model for community-dwelling older adults with subjective memory complaints from seven communities in Chongqing, China, and report the findings of this model.Screenings took place from July 2012 to June 2013. Cognitive screening was incorporated into the annual health assessment for older adults with subjective memory complaints in a primary care setting. Two community nurses were trained to implement the screening using the Mini-Mental State Examination and Montreal Cognitive Assessment.Of 733 older adults, 495 (67.5%) reported having subjective memory complaints. Of the 249 individuals who participated in the cognitive screening, 102 (41%) had mild cognitive impairment, whereas 32 (12.9%) had cognitive impairment. A total of 80 participants (78.4%) with mild cognitive impairment agreed to participate in a memory support program. Participants with cognitive impairment were referred to specialists for further examination and diagnosis; only one reported that he had seen a specialist and had been diagnosed with dementia.Incorporating cognitive screening into the annual health assessment for older adults with subjective memory complaints was feasible, though referral rates from primary care providers remained unchanged. The present study highlights the urgent need for simple screenings as well as community-based support services in primary care for older adults with cognitive or mild cognitive impairments.

To explore general practitioners (GPs)knowledge of ageing, attitudes towards older people and factors affecting their knowledge and attitudes in a Chinese context.Four hundred GPs were surveyed using the Chinese version of the Aging Semantic Differential (CASD) and the Chinese version of the Facts on Aging Quiz (CFAQ1) scale.The CASD scores indicated that GPs had a neutral attitude towards older people. The CFAQ1 scores indicated a low level of knowledge about ageing. GPs' awareness of the mental and social facts of ageing was poorer compared to that of physical facts. Male GPs had a significantly higher negative bias score than female GPs. No other variables had a statistically significant influence on knowledge and attitudes.The findings suggest the need for education interventions for GPs regarding knowledge of ageing and also provide evidence to guide future development of continuing medical programs for this group of medical doctors.