论十堰人民对中国抗日战争的贡献

抗日战争时期,特别是在战略相持阶段到来之后,十堰人民积极投身于火热的抗日救亡、保家卫国的爱国运动之中,为中国抗日战争的胜利作出了自己的巨大牺牲和重要的贡献。     

论晋察冀抗战戏剧

抗日战争中,晋察冀的戏剧活动,在中国共产党的领导下,以民族解放为内容,以抗战为戏剧创作的题材,宣传党的抗战政策,把艺术的“组织和激励”功能寓于戏剧艺术这种“审美的形式”中,在创造、表演等方面都体现了鲜明的特色,成为中国戏剧史上一朵引人注目的奇葩。     

射极电阻对容抗管性能之影响

本文从理论上分析了射极交流电阻对容抗管性能的影响．并指出可用改变射极交流电阻的办法来实现直接调频．     

浅析抗战后广西的灾荒

惨遭抗战浩劫后的广西，社会经济凋敝，人民生活困苦，急需休养生息的广西却又连年灾荒，瘟疫流行，灾情之重，灾区之广，震惊了全国，不仅进一步加深了灾民的苦难，还导致社会秩序的混乱和严重后果。     

惠斯通电桥的系统误差

本文对惠斯通电桥的系统误差作了分析讨论,在此基础上提出了减少系统误差以提高测量结果准确度的有效方法.     

从北大教员到乡村教师

抗战时期，废名回到家乡黄梅躲避战乱，这期间，他受聘为黄梅县第二小学教员，做了半年的小学国语教员。他见证了“计划教育”背景下黄梅县的教育历史，并在“二小”进行了一场围绕“写什么”和“怎么写”的教学改革。废名的教学改革思想实质上同五四新文化运动有丰富的联系，为黄梅教育吹进了新气息。     

中共对共产国际在抗战领导权问题上消极影响的抵制与清理

文章指出了抗战期间共产国际对中共抗战领导权路线方针的种种消极影响,阐述了中共对这些消极影响的抵制与清理,并着重论述了中共的抵制与清理对毛泽东思想形成和发展的重大意义。     

二甲双胍联合抗阻运动对糖尿病大鼠下丘脑TGF-β1-Smad2/3的影响

目的:探究二甲双胍联合抗阻运动干预对糖尿病大鼠的血糖的影响,以及对下丘脑TGF-β1、Smad2/3含量的影响。方法:采用高糖高脂饲料喂养结合腹腔注射链脲佐菌素(Streptozocin,STZ)注射液诱导糖尿病大鼠模型,二甲双胍和抗阻爬梯干预,Western-Blot法检测糖尿病大鼠下丘脑TGF-β1、Smad2/3蛋白表达量。结果:二甲双胍和运动均有一定降血糖效果,以药物治疗最为明显,联合干预的效果低于单独干预;二甲双胍和抗阻运动干预及其联合干预,Smad2/3、TGF-β1表达无明显的改变。结论:6周的糖尿病进程可能没有损伤大鼠下丘脑,抗阻运动和二甲双胍药物干预降低糖尿病大鼠血糖可能存在一定的抵消作用。     

Maximal intended velocity training induces greater gains in bench press performance than deliberately slower half-velocity training

Abstract

The purpose of this study was to compare the effect on strength gains of two isoinertial resistance training (RT) programmes that only differed in actual concentric velocity: maximal (MaxV) vs. half-maximal (HalfV) velocity. Twenty participants were assigned to a MaxV (n = 9) or HalfV (n = 11) group and trained 3 times per week during 6 weeks using the bench press (BP). Repetition velocity was controlled using a linear velocity transducer. A complementary study (n = 10) aimed to analyse whether the acute metabolic (blood lactate and ammonia) and mechanical response (velocity loss) was different between the MaxV and HalfV protocols used. Both groups improved strength performance from pre- to post-training, but MaxV resulted in significantly greater gains than HalfV in all variables analysed: one-repetition maximum (1RM) strength (18.2 vs. 9.7%), velocity developed against all (20.8 vs. 10.0%), light (11.5 vs. 4.5%) and heavy (36.2 vs. 17.3%) loads common to pre- and post-tests. Light and heavy loads were identified with those moved faster or slower than 0.80 m·s^?1 (～60% 1RM in BP). Lactate tended to be significantly higher for MaxV vs. HalfV, with no differences observed for ammonia which was within resting values. Both groups obtained the greatest improvements at the training velocities (≤0.80 m·s^?1). Movement velocity can be considered a fundamental component of RT intensity, since, for a given %1RM, the velocity at which loads are lifted largely determines the resulting training effect. BP strength gains can be maximised when repetitions are performed at maximal intended velocity.