Diagnosis and Treatment of Diabetic Ketoacidosis Mellitus with Guillain-Barré Syndrome: A Case Report

This article reports the diagnosis and treatment of a case of Diabetic ketoacidosis with Guillain-Barré syndrome. Diabetic ketoacidosis (DKA) is the most common acute diabetes mellitus, often diabetes and infection, insulin withdrawal or interruption of the history of triggers, with hyperglycemia, ketoacidosis, and acid poisoning as the main symptoms, rapid onset of ill-ness, and serious illness. Guillain-Barré syndrome (GBS) is an autoimmune-mediated peripheral neuropathy with frequent respiratory or gastrointestinal tract infections and low clinical incidence before 1 - 3 weeks. This case was characterized by a headache with vomiting acute onset, a relatively clear diagnosis of diabetic ketoacidosis, a symmetrical decrease in muscle strength in the extremities, and recovery of consciousness after aggressive correction of environmental disturbance in electrolytes, but very poor muscle strength in the extremities, protein-cell segregation in cerebrospinal fluid (CSF). Considering Guillain-Barré syndrome, the patient’s muscle strength gradually recovered after treatment with proglobulin shock. At present, the pathogenesis of the two is not clear, but because of its rapid progress, clinicians should raise awareness of diabetic ketoacidosis combined with Guillain-Barré syndrome, early diagnosis, and active treatment. Inform consent has been obtained from the patient for this report.

超拉伸水凝胶热电偶

可拉伸温度传感对实现人机触觉交互和温度调节至关重要,这些传感元件需要贴合特异性表面,且在拉伸条件下保持温度感知的精度.现有可拉伸温度传感器由于温度和形变引起电阻变化的相互干扰,在拉伸过程中存在固有的传感不稳定问题.本文提出了一种超可拉伸水凝胶热电偶,通过构建具有动态交联双网络的热电水凝胶,实现水凝胶热电偶的超拉伸性.通过设计的P型和N型热电水凝胶,构建热电偶单元.热电偶表现出1.93 mV K^(-1)的高塞贝克系数,即使在100%的拉伸应变下,灵敏度依然保持稳定.本文的研究结果为可拉伸温度传感器提供了一种新的策略,并有望广泛应用于智能可穿戴设备.

A self-powered piezoelectret sensor based on foamed plastic garbage for monitoring human motions

Constructing piezoelectret based on foamed plastic garbage is an advisable strategy for obtaining self-powered flexible electromechanical sensors with good performances.Herein,a self-powered piezoelectret sensor with basic material of low density polyethylene(LDPE)foamed plastic garbage is proposed,with characteristics of easy fabrication,excellent flexibility,and high equivalent piezoelectric coefficient d33 value up to~1,100 pC/N.The output stability is verified by continuously stimulating a sensor for~180,000 cycles under low and high applied pressure,and the variations of peak outputs are less than 5.5%.Applications for measuring low-and high-pressure signals from human body are achieved.Assembled with a wristband,a sensor is demonstrated for detecting the human pulse waves.Moreover,real time human sitting information is wirelessly monitored with a smart chair based on 4 pixels sensors array.

Scalable and eco-friendly flexible loudspeakers for distributed human-machine interactions

Flexible loudspeakers that can be easily distributed in the surrounding environment are essential for creating immersive experiences in human-machine interactions,as these devices can transmit acoustic information conveniently.In this paper,we present a flexible electret loudspeaker that offers numerous benefits,such as eco-friendly,easy fabrication,flexible customization,strong durability,and excellent outputs.The output sound pressure level(SPL)and frequency response characteristic are optimized according to the simulation and experiment results.At a distance of 50 meters,a large-size loudspeaker(50×40 cm^(2))can produce an average SPL of 60 dB(normal SPL range of human voices is between 40 to 70 dB).The frequency response of our loudspeaker is high and relatively consistent up to 15 kHz,which covers the normal frequency range of human voices(<8 kHz).As demonstrated in this work,our loudspeakers can be used for scalable applications,such as being integrated with curtains or hung up like posters,offering a promising and practical solution for creating better human-machine interaction experiences.

Dual functional transparent film for proximity and pressure sensing

Over the past few years, the rapid development of tactile sensing technology has contributed significantly to the realization of intuitional touch control and intelligent human-machine interaction. Apart from physical touch or pressure sensing, proximity sensing as a complementary function can extend the detection mode of common single functional tactile sensors. In this work, we present a transparent, matrix-structure dual functional capacitive sensor which integrates the capability of proximity and pressure sensing in one device, and the excellent spatial resolution offered by the isolated response of capacitive pixels enables us to realize precise location identification of approaching objects and loaded pressure with fast response, high stability and high reversibility.

Design of a Surface Plasmon Resonance Sensor Based on Grating Connection

Nowdays, the study of measurement of the biological field focuses on the research of improving surface plasmon resonance （SPR） in the fields of integration and detection sensitivity. We designed a kind of grating connected surface plasmon resonance sensor. Theoretically, we analyzed the wave vector and the. effective refractive index relations with the diffraction grating structure. Then we obtained the nanoparticles enhancement SPR structure with a resolution 10times higher than that of traditional SPR sensors. Also, we used the finite-difference time-domain （FDTD） analysis and simulation which showed that it was obvious with coupling effect by the nanoparticles enhancement SPR structure that the reflectance spectral bandwidth results validated the structure significantly which improved the sensitivity. Experimental results showed that the dynamic response of the designed sensor reached 10^-6 RIU （refractive index unit）. This study has the certain significance to long-distance and special sensing applications.

Fullerene/cobalt porphyrin charge-transfer cocrystals： Excellent thermal stability and high mobility

Although organic semiconductors with high mobility and thermal stability are particularly desirable for practical applications, facile methods for their development still remains a big challenge. In this work, a charge-transfer cocrystal based on fullerene （C70）/cobalt porphyrin supramolecular architecture was prepared by a solution-processable co-assembly strategy. This supramolecular architecture showed hole mobility as high as 4.21 cm2·V-1·s-1, and a relatively high mobility of 0.02 cm2·V-1·s-1 even after thermal treatment at 1,000 ℃. Further studies confirmed the occurrence of charge-transfer from 5,10,15,20- tetrakis（4-methoxyphenyl）porphyrinato cobalt（II） （CoTMPP） to Czo and the paramagnetic character within the supramolecular system. These factors were found to be responsible for the aforementioned superior performances. Thus, a novel organic semiconductor has been reported in this work, which can be potentially used for next generation electronic devices. Furthermore, it has been demonstrated that charge-transfer co-crystallization is a powerful strategy for the rational design and construction of a broad class of new multifunctional organic co-crystalline materials.

A miniaturized mechanical antenna based on FEP/ THV unipolar electrets for extremely low frequency transmission

An electret-based mechanical antenna(EBMA),which can transmit extremely low frequency(ELF)electromagnetic signals,has the advantages of miniaturization and high transmitting efficiency,with great potential applications in air,underwater,and underground communications.To improve the charge density of the electret,which is a key factor in determining the radiation performance of an EBMA,this work proposes a fluorinated ethylene propylene/terpolymer of tetrafluoroethylene,hexafluoropropylene and vinylidene fluoride(FEP/THV)unipolar electret exhibiting negative polarity,reaching a total charge density up to-0.46 mC/m^(2) for each layer of electret.Long transmission distances can be achieved in sea water,soil,and air using a 3-layer-FEP/THV-based EBMA with a compact volume of 5×10^(-4) m^(3).As an application demonstration,binary ASili-coded ELF information of"BUAA"is successfully transmitted with a power consumption<5W.