从高凉县郡沿革看俚区羁縻式分治

据史籍中秦汉至南朝时期高凉县、郡沿革及相关俚族记载,以分析梁末前历朝对高凉俚区的羁縻式分划统治。认为汉晋岭南始现俚族应与秦汉以来历朝通过边地郡县对瓯、骆、乌浒等族的羁縻式统治有关,从西晋至南朝分置的羁縻性政区可以看出,梁末前历朝逐步推进对高凉俚区的羁縻式分划统治。通过以上羁縻性政区及相关行政制度,加快了高凉俚区部分俚僚如冼氏俚族与汉族间的融合。     

西部欠发达地区外语教师职业发展研究——基于加强校本培训的视角

校本培训是促进教师职业发展的重要途径之一。针对西部欠发达地区高校外语教师进修资源极其短缺的现状,整合校内资源、完善教师个体的自主培训、分层次学校模式和多元化院系模式的校本培训体系,是结合学校实际情况可行的教师教育形式,有利于实现外语教师的持续性成长。     

滇东南边疆苗族婚姻习俗探究——以麻栗坡县董干镇马崩村的调查为中心

苗族在滇东南边疆地区分布较为广泛,由于自然、历史与现实社会的诸多原因,滇东南边疆苗族的婚姻习俗较为独特,并具有边境地区的特点,即跨国婚姻较为普遍。文章在田野调查的基础上,对滇东南地区苗族婚姻的种类与形式、婚姻范围、择偶标准、结婚过程以及跨国婚姻等情况作了考察,并提出了一些思考。     

济宁城市形象研究

通过对济宁概况的分析,找出了济宁城市形象建设中的优势和不足,并对如何提高济宁城市形象整体发展提出了建议,对济宁未来的发展方向作了科学、合理的构想。     

抗战时期晋绥边区的农业

抗战时期,农业是晋绥边区经济的主体,日寇侵略严重破坏了边区农业发展。边区政府和农民多措并举发展农业生产,取得了显著成就,促进了经济发展,满足了军需民食,为坚持抗战并取得胜利做出重大贡献。     

经典物理中不同参考系对称性与守恒定律前提等价性的讨论

从牛顿力学、分析力学和量子力学三个不同参考体系推导出的对称性与守恒间的关系,其前提条件虽不同,但其本质都是一致的。     

VLAN技术应用研究

随着网络的发展,网络设备不断增多,VLAN技术应用而生,该技术可以有效阻隔网络广播,控制广播风暴,提高网络的安全性.本文着重阐述VLAN的划分方法通常有四种方式、VLAN的关键技术是ISL标签VTP协议、VLAN通信中遇到的问题及解决方法、如何配置VLAN.     

Responses to oral glucose challenge differ by physical activity volume and intensity: A pilot study

BackgroundOne-hour postprandial hyperglycemia is associated with increased risk of type 2 diabetes and cardiovascular disease. Physical activity (PA) has short-term beneficial effects on post-meal glucose response. This study compared the oral glucose tolerance test results of 3 groups of people with habitually different levels of PA.MethodsThirty-one adults without diabetes (age 25.9 ± 6.6 years; body mass index 23.8 ± 3.8 kg/m²; mean ± SD) were recruited and divided into 3 groups based on self-reported PA volume and intensity: low activity < 30 min/day of moderate-intensity activity (n = 11), moderately active ≥ 30 min/day of moderate-intensity PA (n = 10), and very active ≥ 60 min/day of PA at high intensity (n = 10). Participants completed an oral glucose tolerance test (50 g glucose) with capillary blood samples obtained at baseline, 15 min, 30 min, 45 min, 60 min, 90 min, and 120 min post-ingestion.ResultsThere were no significant differences between groups for age or body fat percentage or glycated hemoglobin (p > 0.05). The groups were significantly different in terms of baseline glucose level (p = 0.003) and, marginally, for gender (p = 0.053) and BMI (p = 0.050). There was a statistically significant effect of PA on the 1-h postprandial glucose results (p = 0.029), with differences between very active and low activity groups (p = 0.008) but not between the moderately active and low activity groups (p = 0.360), even when baseline glucose level and gender differences were accounted for. For incremental area under the curve there was no significant effect of activity group once gender and body fat percentage had been accounted for (p = 0.401). Those in the low activity group took 15 min longer to reach peak glucose level than those in the very active group (p = 0.012).ConclusionThe results suggest that high levels of PA have a beneficial effect on postprandial blood glucose profiles when compared to low and moderate levels of activity.     

松嫩平原农区的经济出路──以黑龙江省双城市东新村为例

我国北方平原农区素以生产粮豆为主，经营十分单一，由于生产成本提高而粮豆价格偏低等诸多因素，农民长期收入水平低下。在市场经济条件下，平原农区的经济出路何在？本文通过典型实例调查，从平原农区的资源特点出发，认为“粮、多、企”协调发展是平原农区经济的可行出路，并提出了这种发展模式的改进途径。     

氧化镁和氧化钇掺杂对纳米氧化铝粉末的影响

本文研究了用均相共沉淀法合成氧化铝陶瓷粉末的同时合成氧化镁、氧化钇等掺杂氧化物,发现在掺杂量不大时,同时合成的掺杂氧化物以填隙固溶体方式固溶于立方γ氧化铝中,并且几乎不影响铝氧键性质、晶格常数和衍射波矢,但掺杂使氧化物细化,比表面增大,用此法合成的粉末聚集比较厉害,在粉末中有晶化颗粒存在．