对林业投入的思考

林业投入不仅包括传统的资金投入、物资投入和劳动投入这３种实体形态的硬要素投入，还包括软要素投入，即林业体制投入（含政策、法规、管理投入）、林业科技投和（含教育、科技、信息投入）和林业监督投入（含管制奖惩投入）。长期以来，由于对林业投入的观念存在误区，片面强调林业投入中的资金、人力、物力的硬要素，忽视法规、科技、信息、管理等软要素的投入，严重制约了我国林业的发展。在我国转变林业经济增长方式，实施可持续发展的形势下，加强林业软要素投入，树立“大投入”的思想观念，对于我国林业发展有着十分重要的意义。     

基于PLC的设施蔬菜环境监控系统设计与应用

针对设施蔬菜环境难以把握、难以调控的问题,采用工控化思想,综合利用自动化、通讯工程等技术,设计一套基于PLC的环境监控系统,实现了设施蔬菜环境监测信息化、环境调控自动化.实践证明该系统能降低病虫害发生概率、降低水肥药投入成本和人力管理成本,是实现设施蔬菜优质、高产、高效的有效技术手段.     

断层和裂缝尺度识别的地球物理方法探讨

由于地球物理方法本身受分辨率和保真度的限制,其在断层和裂缝识别上的应用也就有精度和尺度上的差异。为此,可采用不同的方法技术来识别不同尺度的断层和裂缝,即在断层识别上,利用地震剖面和水平切片解释大断层,采用相干分析方法识别小断层;在裂缝识别上,主要采用多方位AVO方法识别大尺度裂缝的发育特征,采用成像测井来识别微小裂缝的特征情况。实际应用表明,上述方法在相应尺度断层和裂缝上的识别效果较好。     

关于老龄管道的安全运行

管道老龄化是世界性问题,进入老龄期的管道能否继续安全运行,需要从管道的原始条件、维护条件及油田的产量方面进行综合考量。美国贯穿阿拉斯加管道是老龄管道继续安全运行的成功范例,借鉴其成功经验,可以促进与保证东北原油管网的安全运行。对于东北管网庆铁线交替输送中俄原油方案,认为必须对管道的原始条件和管道的应力交变问题进行仔细调查与研究,慎重决策。     

加查县优良核桃资源调查初报

针对过去对西藏核桃主产区之一加查县优良核桃单株调查不全、资料不详等问题,对加查县核桃优良单株的分布进行了较详细的调查。调查结果,共搜集到了酥油核桃等36个外观品质及口感好的品种(单株),突破了原来在《中国果树志.核桃卷》记载的11个优良单株,并详细记录了每个单株的当地名称,确定了分布的具体位置,如经纬度、海拔及所在村镇,同时取样测定了坚果的基本物理性状。     

杏鲍菇β-葡聚糖促人胃粘膜上皮细胞增殖和迁移效果研究

为研究杏鲍菇β-葡聚糖（PEWP）对胃黏膜的保护作用，以含有不同浓度PEWP的培养液培养人胃黏膜上皮细胞，测定其增殖率和迁移率，并以倒置显微镜观察细胞形态及生长情况。结果表明：低浓度PEWP能促进体外胃黏膜上皮细胞的增殖和迁移，加速损伤区域上皮细胞的生长，具有保护胃黏膜的作用。     

Role of type II innate lymphoid cells in browning of white adipose tissue

Type II innate lymphoid cells (ILC2s) are widely distributed in the blood, intestines, trachea, lung, spleen, liver, animal fat and skin, and involved in the innate immune responses. ILC2s have attracted much attention for its important roles in the conversion of white adipose to beige adipose. Studies have shown that ILC2s are essential for the proliferation and differentiation of adipocyte precursor cells, and they also play a vital role in anti-parasitic infection and allergic inflammation. This review discusses the discovery, differentiation, development, distribution and function of ILC2s, and their relationships with the browning of white adipose tissue for providing valuable references on understanding the pathogenesis, prevention and treatment of obesity and fat metabolism disorders.     

北方蚕业科研协作区第六批桑品种鉴定(陕西点)试验报告

2015—2016年对北方蚕业科研协作区4家单位的9个桑树新品种进行了共同鉴定。本批参鉴品种中,生长势旺、产叶量高、叶质好的品种有鲁插2号、鄂桑2号、陕桑9312、陕桑8826,其中鲁插2号叶片大而厚、发条力强,鄂桑2号节间密、片叶率高。     

Study of Semen Cryopreservation for Banna Mini-pig Inbred Line

In this study, different concentrations of glycerol were added to semen cryoprotective extenders of Banna Mini-pig inbred line (BMI), different thawing solutions and thawing methods were studied. After thawing, the motility, the rates of plasma integrity and acrosome integrity were compared to optimize the cryopreservation method of BMI semen. The results showed that the motility, the rates of plasma integrity and acrosome integrity were significantly higher in 2% and 3% glycerol groups than those in 1%, 4% and 5% glycerol groups (P<0.05);The motility, the rates of plasma integrity and acrosome integrity were significantly higher in thawing solution Ⅰ than those in thawing solution Ⅱ, Ⅲ and Ⅳ (P<0.05); Through comparing the motility, the rates of plasma integrity and acrosome integrity, the thawing effect in 40℃ 6 s and 50℃ 6 s groups were better than that in 38℃ 30 s (P<0.05). In conclusion, the optimal semen cryoprotective method for BMI was 2% or 3% glycerol as cryoprotectant, using thawing solution Ⅰ to thaw at 40℃ 6 s or 50℃ 6 s.     

Cloning and Sequence Analysis of ACOX1 Gene in Luchuan Pig

The objective of this study was to clone the acyl-coenzyme A oxidase 1 (ACOX1) gene of Luchuan pig and analyze its genetic structure with bioinformatics. A pair of special primer was designed according to predicted sequence of pig ACOX1 gene in GenBank. The ACOX1 gene was amplified by RT-PCR, the physicochemical property and secondary structure of ACOX1 gene were systemically analyzed by bioinformatics techniques. The results showed that ACOX1 gene fragment included an 1 986 bp whole length CDS (coding 661 bp amino acids). The sequence multi-aligned results showed that Luchuan pig shared 99.5%, 85.5%,87.1%,66.3%,75.6%,84.0%,82.3%,81.1% and 69.1% of similar nucleotide sequence with that of pig,human, zebrafish, chicken, rhesus monkeys, mice, rat and frog, respectively. The prediction of ACOX1 secondary structure showed that Luchuan pig ACOX1 had no signal peptide and transmembrane structure. This study suggested that the whole CDS sequence of ACOX1 gene was successfully cloned in Luchuan pig, and the cloning and analysis of ACOX1 gene provided an important foundation for further studying on the fatty deposition and lipornetabolism of ACOX1 gene in Luchuan pig.