产后形体曲线的恢复对女性心理的影响

形体曲线是引人注目的重要部分,是展示人的气质、性感、健康及个性的内容,是人体审美的核心,在社会交往和婚姻家庭中,形体曲线缺陷或对自身形体不满意的女性,在社交活动、精神情绪、日常生活、心里活动均会造成不同程度的影响。对于面部整形手术者存在的心理变化,一些专家已有所研究[1],但对于产后形体曲线恢复可改善对女性自尊影响的相关研究笔者见的不多。本研究为医学整形及医学心理提供参考,并为女性的身心健康教育提供帮助,

产后形体曲线的恢复对女性心理的影响

目的观察产妇产后形体曲线恢复对其心理的影响。方法以我院妇产科于2015.2-2016.3期间入院生产的106例孕妇为研究对象,临床分组采用随机排列表法分为对照组、研究组,其中对照组53例(孕妇产后给予常规治疗)、研究组53例(产后对孕妇进行相关护理干预以及形体训练),对两组患者进行问卷调查,评估患者产后1年对自身形体曲线满意程度,并以抑郁自评量表(SDS)对患者进行心理评估,比较两组产后、产后1年SDS评分差异,统计产妇抑郁人数。结果产后1周孕妇评分组间比较无差异,P>0.05,产后1年研究组评分较对照组低,P<0.05;产后1年产妇抑郁率为11.3%,形体满意度92.5%,对照组为32.1%、73.6%,研究组较对照组抑郁发生少、产妇形体曲线满意度高,P<0.05。结论女性产后形体曲线恢复能有效减少产后抑郁发生。

弧形吸脂针在体形雕塑中的应用

目的:探讨弧形针脂肪抽吸技术在体形雕塑中的应用。方法:将传统直形吸脂针,沿吸脂针全长进行均匀折弯,使之呈轻微弧形,用弧形针对目标区域脂肪进行分层抽吸,保证吸脂针在吸脂过程中位于同一层次抽吸。结果:2018年6月-2020年12月共采用弧形针吸脂塑形256例,术中出血少,术后出现血肿、血清肿以及凸凹不平等并发症发生率较低。结论:弧形吸脂针更符合人体曲线形态特点,即使在不同区域也更容易在同一层次抽吸脂肪,使吸脂更加均匀,手术创伤相应减少,术后效果更好。

基于图像识别高浓度氨氮下点带石斑鱼的异常行为

为不同氨氮浓度水质中点带石斑鱼的异常行为判断提供参考,选取体重为160.5克、体长15.5厘米的点带石斑鱼200尾,平均分为4组,每组包含正常组与异常组2个分组,在养殖其他条件不变的情况下,通过人工调节水体氨氮浓度以获取4种不同水质条件点带石斑鱼正常与异常状态下的图像。通过对比发现,点带石斑鱼在高氨氮水体中会出现身体痉挛,导致鱼体弯曲。采集鱼类图像并对获取的原始图像进行分割、二值化、图像细化获取骨骼、中值滤波等预处理后,获取点带石斑鱼的形体曲线,当点带石斑鱼形体曲线出现2个及以上角点时,视为鱼类出现异常行为并进行报警。

Influence of chemical composition and cold deformation on aging precipitation behavior of high nitrogen austenitic stainless steels

The influence of chemical composition and cold deformation on aging precipitation behavior of 18Cr-16Mn-2Mo-I.IN （HNS-A）, 18Cr-16Mn-I.3N （HNS-B）, 18Cr-18Mn-2Mo-0.96N （HNS-C） and 18Cr-18Mn-2Mo-0.77N （I-INS-D） high nitrogen austenitic stainless steels was investigated. The results show that the ＂nose＂ temperatures and incubation periods of the initial time-temperature-precipitation （TTP） curves of aged HNSs are found to be 850 ℃, 60 s; 850 ℃, 45 s; 850 ℃, 60 s and 900 ℃, 90 s, respectively. Based on the analysis of SAD patterns, the coarse cellular Cr2N precipitate which presents a lamellar structure has a hexagonal structure of a=0.478 nm and c=0.444 nm. The Z phase corresponding to a composition of Fe36Cr^2Mo10, is determined to be a body-centered cubic structure ofa=0.892 nm. The precipitating sensitivity presents no more difference with the nitrogen content increasing from 0.77% to 0.96%, but exhibits so obviously that the cellular precipitates nearly overspread the whole field. The addition of Mo element can restrain the TTP curves moving left and down, which means decreasing the sensitivity of aging precipitation. With increasing the cold deformation, the sensitivity of precipitation increases obviously.

Global Geometry of 3-Body Motions with Vanishing Angular MomentumⅠ

Following Jacobi＇s geometrization of Lagrange＇s least action principle, trajectories of classical mechanics can be characterized as geodesics on the configuration space M with respect to a suitable metric which is the conformal modification of the kinematic metric by the factor （U ＋ h）, where U and h are the potential function and the total energy, respectively. In the special case of 3-body motions with zero angular momentum, the global geometry of such trajectories can be reduced to that of their moduli curves, which record the change of size and shape, in the moduli space of oriented m-triangles, whose kinematic metric is, in fact, a Riemannian cone over the shape space M^＊≌S^2 （1/2）. In this paper, it is shown that the moduli curve of such a motion is uniquely determined by its shape curve （which only records the change of shape） in the case of h≠0, while in the special case of h = 0 it is uniquely determined up to scaling. Thus, the study of the global geometry of such motions can be further reduced to that of the shape curves, which are time-parametrized curves on the 2-sphere characterized by a third order ODE. Moreover, these curves have two remarkable properties, namely the uniqueness of parametrization and the monotonieity, that constitute a solid foundation for a systematic study of their global geometry and naturally lead to the formulation of some pertinent problems.

Generatrix shape optimization of stiffened shells for low imperfection sensitivity

According to previous studies,stiffened shells with convex hyperbolic generatrix shape are less sensitive to imperfections.In this study,the effects of generatrix shape on the performances of elastic and plastic buckling in stiffened shells are investigated.Then,a more general description of generatrix shape is proposed,which can simply be expressed as a convex B-spline curve(controlled by four key points).An optimization framework of stiffened shells with a convex B-spline generatrix is established,with optimization objective being measured in terms of nominal collapse load,which can be expressed as a weighted sum of geometrically imperfect shells.The effectiveness of the proposed framework is demonstrated by a detailed comparison of the optimum designs for the B-spline and hyperbolic generatrix shapes.The decrease of imperfection sensitivity allows for a significant weight saving,which is particularly important in the development of future heavy-lift launch vehicles.

Hyperbolicity of elliptic Lagrangian orbits in the planar three body problem

The linear stability of Lagrangian elliptic equilateral triangle homographic solutions in the classical planar three body problem depends on the mass parameter β = 27（m1m2 ＋ m2m3 ＋ m3m1）/（m1 ＋ m2 ＋ m3）2∈ [0,9] and the eccentricity e ∈ [0,1）.In this paper we use Maslov-type index to study the stability of these solutions and prove that the elliptic Lagrangian solutions is hyperbolic for β ＆gt; 8 with any eccentricity.

Contact binaries:Ⅱ.The importance of deformation caused by rotation and tides to the light curve of a contact binary

The theoretical light curves of contact binaries are calculated with and without putting in the contact binary evolution model.Firstly,we do not use the contact binary evolution model.A comparison of the light curve is performed with and without the deformation caused by rotation and tides.It shows that the light curve presents many differences,especially on the bottom and top.Secondly,we adopt the contact binary model [Huang R Q,et al.Chin J Astron Astrophys,2007,7:235-244;Song H F,et al.Chin J Astron Astrophys,2007,7:539-550] and compute the theoretical light curve with and without rotational and tidal effects by studying three binary systems(with low-,intermediate-and high-mass components).The bottom and top of the theoretical light curves are discussed and compared to observations.The results show that taking into account the rotational effect has a better agreement with observations than without it.Therefore,the deformation of the light curve of contact binaries caused by rotation and tides is very important.Meanwhile,the rotational and tidal effect can advance the start of the semi-detached,contact phase and the time of mass-reversal.

Topography of spinal column and kidney receptors as illustrated by microsystem of the foot

OBJECTIVE:To test the accuracy of the distribution of reflective zones on the feet as proposed by William Fitzgerald using the spine and kidney receptors as reference points.METHODS:Spine and feet lengths were measured first along straight lines and then again,taking into consideration the anatomical curves.The spinal column was further measured with regard to its individual regions(cervical,thoracic,lumbar,sacrum-coccyx).Straight-line measurements were taken with the help of an anthropometer.Measurements that took into account all of the curves were performed with the opisometer(also known as a "map measurer").All the measurements were accurate to within 1 mm.The study subjects were a healthy,physically fit 16-year-old female student and a 53-year-old male office employee exposed to an average dose of physical exercise.RESULTS:The kidney receptor in the foot did not reflect onto the predetermined lumbar section of the spinal column as measured along the straight line or with regard to curves.Instead,in both subjects the kidney receptor reflected onto the thoracic spine.CONCLUSION:Te particular level of the spinal cord that innervates the given organ controls the distribution of receptors of individual organs in the foot.