浙江地区菜用蚕豆品比试验初报

为筛选适合浙江松阳县大面积推广的菜用蚕豆新品种,引进5个品种进行比较试验。试验结果表明,ZB-37单株总荚数较多,3粒荚比例高,商品性好,产量较高;ZB-9较早熟,采收期比对照提早3 d,产量中等,3粒荚比例高,商品性好,植株低而紧凑;以上2个品种适宜进一步试验推广。     

结球甘蓝品种比较试验

为筛选出抗病性好、产量高、净菜率高且口感佳的甘蓝品种,作者对上海及周边地区主要栽培的10个结球甘蓝品种进行了比较试验。试验结果表明,媛春、奥奇娜和极早的综合性状表现较好,表现为产量高、净菜率高、中心柱小、叶球紧实。     

钦州市保护地硬果番茄品种优选试验

针对当前品种不能很好满足市场需求,选取了5个番茄品种进行筛选试验。试验结果表明5个参试番茄品种均为无限生长型品种,均适合钦州市越冬大棚栽培,其中格雷、铁红A26植株长势强,坐果率高、采收期长,商品性好,产量高,具有较好的市场推广价值。     

弥勒市核桃斜锯干作砧嫁接改优技术运用效果评价

2009-2010年利用核桃斜锯干作砧在弥勒市东西两山3个乡镇对核桃低效林进行嫁接改优试验。试验表明,嫁接树具有成活率高、嫁接成本低、产量高、结果早、品质优、市场需求量大等优势。2011年在全市8个乡镇推广运用该试验技术,低改后的产量和经济效益比低改前大幅度提升。     

结球生菜品比试验

为筛选出产量高、整齐度好、商品性优、生长势强的结球生菜新品种,我们引进6个结球生菜品种开展品比试验。试验结果表明,千胜205产量高,有很强的增产潜能,值得进一步推广应用;百胜118早熟,产量也较高,具有推广潜力。     

原木灵芝破壁孢子粉对小鼠免疫功能的影响

通过设3个浓度的原木灵芝破壁孢子粉药物组和阴性对照组,分别进行ConA诱导的小鼠脾淋巴细胞转化试验,绵羊红细胞诱导小鼠DTH试验,小鼠血清溶血素测定,抗体生成细胞检测,小鼠腹腔巨噬细胞吞噬鸡红细胞试验,小鼠碳廓清试验,NK细胞活性测定试验和脏器指数测定。结果表明,与阴性对照组比较,低、中、高3个剂量原木灵芝破壁孢子粉均能提高小鼠脾淋巴细胞的增殖能力,差异均有显著性;高剂量组能提高小鼠左后足跖部24h与0h厚度差,差异有显著性;中剂量、高剂量组均能提高小鼠溶血空斑数,差异有显著性。说明原木灵芝破壁孢子粉具有较强的免疫调节作用。     

太空诱变甜菜创新株系产质量比较分析

试验对4个太空诱变株系及5个对照（1个统一对照,4个母系对照）进行田间对比试验,并对其主要经济性状产量、含糖做差异性比较分析。统计结果表明：二倍体诱变株系JT7503—36528 SP2含糖率比统一对照高2．68度,比母系高1．84度,并达到5％的显著水平;四倍体诱变株系JT334-3 SP2产量及合糖均超母系对照,产糖量超母系对照14．3％,这2份诱变材料入选株系超亲性状显著,证明甜菜太空诱变后代返地育种试验初见成效。     

武汉地区几种厚皮甜瓜品种春季大棚比较试验

以7个厚皮甜瓜品种为试验材料,进行春季大棚品种比较试验。结果表明:黄皮9818和金海蜜生长速度适中,外观美,质地脆,风味佳,糖含量高,适宜武汉地区大规模推广种植。     

水果胡萝卜品种比较试验

为筛选出种植效益好、适合上海地区种植的水果胡萝卜品种,作者引进3个水果胡萝卜品种开展品比试验。试验结果表明,试验结果表明,阿德莱水果胡萝卜外形美观,肉质脆嫩清甜,品质佳,产量高,经济效益好,适合在上海地区推广种植。     

南宁春甘蓝品比试验

为了筛选出适合南宁市春季种植的结球甘蓝品种,引进5个甘蓝品种进行比较试验。试验结果表明,中蔬3号生育期短、商品性好、产量高、品质优,适合在南宁示范推广。     

大葱新品种引种筛选和适应性试验

对2010年引进的10个大葱新品种进行产量和抗病性比较。试验结果表明．掖辐大葱和铁杆巨葱综合性状较好,产量高、抗病性强、商品性好,适宜在甘谷县大面积推广种植。     

旱地辣椒新品种筛选和适应性试验

2010~2011年对新育成和引进的11个辣椒新品种连续进行2年品种比较试验.试验结果表明,‘天椒9号’、‘航椒4号’和‘天椒0517’综合性状较好,产量高、抗病性强、商品性好、制干率高,适宜在甘谷县大面积推广种植.     

番石榴成花习性的调查

 调查了番石榴( Psidium guajava L. ) ‘新世纪’、‘无核’和‘水晶’品种的成花特点, 结果发现, 着生花蕾的第2～4 节叶片处枝梢的直径明显大于其他叶位处枝梢的直径, 而且淀粉和可溶性糖的含量高于其他节位枝梢。     

Relationship between MAT1 expression and clinicopathological features of pancreatic cancers

AIM: To investigate the expression of MAT1 protein in pancreatic cancers and the relationship between MAT1 and clinicopathological features of pancreatic cancers. METHODS: 94 surgical specimens, including 70 pancreatic cancers, 10 pancreatic benign tumors, 14 chronic pancreatitis and 10 autopsy normal pancreas tissues, were analyzed immunohistochemically, and then MAT1 expression and clinicopathological features were compared. RESULTS: MAT1 was expressed mainly in the cancer cells，and also in the fibroblasts, where it was localized within the cytoplasm and nuclear envelope. MAT1 expression was found in 75.7% (53/70) of the cancers, but not detected or weakly expressed in control tissues. There was a significant difference in expression of MAT1 among the above four tissues (P<0.01). Furthermore, MAT1 expression showed a significant correlation with TNM stage (P<0.05), but no correlation with other clinicopathological features. CONCLUSION: The MAT1 protein that is up-regulated in the pancreatic cancer may involve in pancreatic carcinogenesis, and MAT1 in primary lesion may be an useful marker for evaluating prognosis in patients with pancreatic cancer.     

Benches,fountains and trees: Using mixed-methods with questionnaire and smartphone data to design urban green spaces

Smartphones can help researchers track how people use green spaces and understand how design features impact their behaviors. However, when using this data to evaluate green space designs, researchers should be aware of human perceptions of the features within these environments. We contribute a mixed method approach that allows for comparison between how people report using green space features intended to support wellbeing, with how often they are used in common daily routines. As an illustration of this approach, we present the results of a case study conducted on a university campus that compares how outdoor design features are used by students with how these features are reported as being used. Specifically, we compare perceptions of 362 students about which campus design features create a sense of wellbeing, and which are near locations they report using, with the use of these features recorded by the smartphones of a separate group of 62 students. We found that there were large differences between locations students reported using, and locations tracked students used regularly. Features that were used more often during daily routines (low walls, food retail outlets), did not match features reported as helping create a sense of wellbeing in the questionnaire (benches, trees, and sunshine). Of all the design features we modeled, only water features were positively associated with use in the tracking data and supportive of wellbeing in the questionnaire data. Our findings point to the importance of using tracking data together with response data from questionnaires in mixed-method studies if designers want to locate features that the public consider as supportive to their wellbeing, in locations that will be regularly used.     

Park features that encourage park visitation among older adults: A qualitative study

BackgroundParks provide many opportunities for promoting physical, social, and mental wellbeing among older adults and are therefore considered a good setting to promote healthy ageing. However, older adults are the age group least frequently observed visiting parks. To attract more older adults to parks, it is important to understand their needs and preferences for park design. The aim of this qualitative study was to gain in-depth information about older adults’ preferred park features for park visitation.MethodsSemi-structured interviews were conducted with 25 older adults aged > 60 years who visited a recently renewed urban park in Ghent, Belgium at least once since its renewal. The interviews were conducted in-park or in the nursing home adjacent to the park until saturation of information was obtained. All interviews were transcribed verbatim, pseudonymised, and analysed by inductive content analysis using NVivo 12 software.ResultsThe most preferred park activities were walking, sitting, and watching the environment. The park features liked by older adults were good quality and accessible walking paths, nature and vegetation, openness and structural layout of the park, and sufficient and good quality sitting areas. The park features that they did not like mostly related to poor park maintenance.ConclusionsThis study provides an overview of park features that older adults perceive as important for park visitation. It is the first qualitative study in Belgium to assess which park features entice older adults to visit parks, and it contributes to the limited European knowledge on this topic. The evidence can help urban planners, landscape architects, and policymakers to (re)design attractive local parks that promote healthy ageing.     

ACTL8 expression and its correlation with clinicopathological features and prognosis in breast cancer

AIM: To investigate the actin-like protein 8 (ACTL8) expression and its relationship with clinicopathological features and prognosis in breast cancer.METHODS: The expression of ACTL8 in human normal mammary epithelial cell line MCF-10A and 5 breast cancer cell lines was detected by Western blot. The expression of ACTL8 was also investigated by immunohistochemistry in 6 cases of breast cancer specimens with adjacent normal tissues. The data in 488 cases of breast specimens from TCGA dataset were downloaded, and the relationship between the mRNA expression of ACTL8 and the clinicopathological features and prognosis was analyzed.RESULTS: The expression of ACTL8 in 4 breast cancer cell lines was significantly higher than that in breast epithelial cell line MCF-10A.The level of the ACTL8 expression in breast tumors was significantly higher than that in the corresponding adjacent normal breast tissues. The mRNA expression of ACTL8 was correlated with age, tumor size, clinical TNM stage and lymph node metastasis of breast cancer patients (P < 0.05). The high expression level of ACTL8 mRNA indicated a poor prognosis of breast cancer patients. CONCLUSION: ACTL8 protein is highly expressed in breast cancer specimens and is closely correlated with the clinicopathological features and prognosis, suggesting that ACTL8 is a prognostic marker for breast cancer or a potential new target for treatment of breast cancer.     

豇豆荚螟幼虫的空间分布型与抽样技术

对豇豆荚螟幼虫的田间分布进行了理论拟合验算，确定该幼虫的田间分布为负二项式分布，根据负二项式分布的特点，设计了相应的３种抽样方法，棋盘式、Ｚ字形和Ｖ字形。并将３种方法进行准确度检验，检验结果表明，Ｚ字形抽样法代表性强，样本在田间分布合理，本试验还用序贯抽样法确定了田间调查时，平均样本量为９８蔸，同时计算出了防治豇豆荚螟的田间密度指标的拒绝与接收的方程式，以及从计算的期望抽样数Ｅｎ得知，田间最大抽样数为１３８蔸。     

How do urban park features affect cultural ecosystem services: Quantified evidence for design practices

Cultural ecosystem services (CES) in urban parks are associated with nature contact willingness and health outcomes of urban residents. However, practical knowledge on how to manage urban park features to enhance CES is still lacking, especially on more detailed scales. This study developed a practice-oriented workflow for exploring design-related indicators that affect CES by considering four aspects of urban park features, including distance to elements, density of elements, land cover proportion, and landscape diversity. Then the workflow was implemented in a case study by taking six urban parks in Beijing as study areas. Three CES types were identified with outdoor social media images, including recreation value, aesthetic value, and social interaction value. Statistical analyses indicated that a combination of the four aspects of urban park features within a specific service radius was the most significant factor in explaining CES. The importance of design-related indicators for enhancing different CES types was also identified. Density of facilities, proportion of tree canopy-shaded ground, and richness of land cover types were proved important for all the three CES types and therefore could be concerned in urban park design practices. Based on these findings, this study further proposed landscape site design strategies and three adaptive design cases for enhancing different CES types, which could provide evidence-based and practical solutions for managers and landscape architects.     

Detecting dominant landscape objects through multiple scales: An integration of object-specific methods and watershed segmentation

Complex systems, such as landscapes, are composed of different critical levels of organization where interactions are stronger within levels than among levels, and where each level operates at relatively distinct time and spatial scales. To detect significant features occurring at specific levels of organization in a landscape, two steps are required. First, a multiscale dataset must be generated from which these features can emerge. Second, a procedure must be developed to delineate individual image-objects and identify them as they change through scale. In this paper, we introduce a framework for the automatic definition of multiscale landscape features using object-specific techniques and marker-controlled watershed segmentation. By applying this framework to a high-resolution satellite scene, image-objects of varying size and shape can be delineated and studied individually at their characteristic scale of expression. This framework involves three main steps: 1) multiscale dataset generation using an object-specific analysis and upscaling technique, 2) marker-controlled watershed transformation to automatically delineate individual image-objects as they evolve through scale, and 3) landscape feature identification to assess the significance of these image-objects in terms of meaningful landscape features. This study was conducted on an agro-forested region in southwest Quebec, Canada, using IKONOS satellite data. Results show that image-objects tend to persist within one or two scale domains, and then suddenly disappear at the next, while new image-objects emerge at coarser scale domains. We suggest that these patterns are associated to sudden shifts in the entire image structure at certain scale domains, which may correspond to critical landscape thresholds.This revised version was published online in May 2005 with corrections to the Cover Date.