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Case of Nephrogenic DI associated with antiviral agent that resolved by Thiazide and indomethacin.
( Hyuck Jae Choi ),( Moon Jae Kim ),( Seong Woo Lee ),( Jun Ho Song ),( Seon Deok Hwang ) 대한내과학회 2015 대한내과학회 추계학술발표논문집 Vol.2015 No.1
Nephrogenic diabetes insipidus (DI) results from partial or complete resistance of the kidney to the effects of antidiuretic hormone. As a result, patients with this disorder are not likely to have a good response to hormone administration (as dDAVP) or to drugs that increase either the renal response to ADH or ADH secretion. 48-year-old man was admitted to hospital with severe headache, fever, sleeping tendency. He was diagnosed as viral meningitis by CSF tapping exam. Symptom was improved after taking IV antiviral agent (acyclovir). But 3days after applying antiviral agent, His urine output increased to 9,000 cc per day. First, weapply dDAVP due to possility of central DI, but dDAVP has no effect. After Water deprivate test, his Sx. was diagnosed nephrogenic DI. So, we used oral thiazide and indomethacin and 7 days later, his urine output was decreased to normal range. He recovered and discharged in one month without sequelae.
Hwang, Ui-Jae,Kwon, Oh-Yun,Yi, Chung-Hwi,Jeon, Hye-Seon,Weon, Jong-Hyuck,Ha, Sung-Min Wolters Kluwer Health 2017 Medicine Vol.96 No.26
<P><B>Abstract</B></P><P>Shoulder pain occurs commonly in food service workers (FSWs) who repetitively perform motions of the upper limbs. Myofascial trigger points (MTrPs) on the upper trapezius (UT) are among the most common musculoskeletal shoulder pain syndromes. This study determined the psychological, posture, mobility, and strength factors associated with pain severity in FSWs with UT pain due to MTrPs.</P><P>In this cross-sectional study, we measured 17 variables in 163 FSWs with UT pain due to MTrPs: a visual analog scale (VAS) pain score, age, sex, Borg rating of perceived exertion (BRPE) scale, beck depression inventory, forward head posture angle, rounded shoulder angle (RSA), shoulder slope angle, scapular downward rotation ratio, cervical lateral-bending side difference angle, cervical rotation side difference angle, glenohumeral internal rotation angle, shoulder horizontal adduction angle, serratus anterior (SA) strength, lower trapezius (LT) strength, bicep strength, and glenohumeral external rotator strength, in 163 FSWs with UT pain due to MTrPs.</P><P>The model for factors influencing UT pain with MTrPs included SA strength, age, BRPE, LT strength, and RSA as predictor variables that accounted for 68.7% of the variance in VAS (<I>P</I> < .001) in multiple regression models with a stepwise selection procedure. The following were independent variables influencing the VAS in the order of standardized coefficients: SA strength (β = −0.380), age (β = 0.287), BRPE (β = 0.239), LT strength (β = −0.195), and RSA (β = 0.125).</P><P>SA strength, age, BRPE, LT strength, and RSA variables should be considered when evaluating and intervening in UT pain with MTrPs in FSWs.</P>
Hyuck-Jin Kwon,Jae-Ryung Cha,Chil Won Lee,Byung Doo Chin,Oh Young Kim,Seok-Ho Hwang 한국물리학회 2020 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.76 No.1
A new bilayer electrospun nanofiber membranes consisting of a hydrophobic silver nanoparticle-based polyimide nanocomposite (Ag-PI) supporting layer and hydrophilic poly(vinyl alcohol) (PVA) barrier layer for oily wastewater treatment application has been presented. First of all, the Ag-PI electrospun nanofibrous supporting layer was fabricated through electrospinning and thermal treatment from polyamic acid containing silver carbamate. After that, the PVA electrospun nanofibrous barrier layer was constructed by electrospinning onto the supporting layer and chemical crosslinked. The silver nanoparticles were uniformly formed through thermal-reduction of silver carbamate in nanofiber, homogeneously. The constructed bilayer electrospun nanofiber membranes were characterized by the permeate flux, rejection rate, and antimicrobial activity of \textit{\textit{Escherichia coli}} and \textit{Staphylococcus aureus}. It was found that they showed strong antimicrobial activity as well as a high flux and high rejection rate at low operating pressure.
Switching of Photonic Crystal Lasers by Graphene
Hwang, Min-Soo,Kim, Ha-Reem,Kim, Kyoung-Ho,Jeong, Kwang-Yong,Park, Jin-Sung,Choi, Jae-Hyuck,Kang, Ju-Hyung,Lee, Jung Min,Park, Won Il,Song, Jung-Hwan,Seo, Min-Kyo,Park, Hong-Gyu American Chemical Society 2017 NANO LETTERS Vol.17 No.3
<P>Unique features of graphene have motivated the development of graphene-integrated photonic devices. In particular, the electrical tunability of graphene loss enables high-speed modulation of light and tuning of cavity resonances in graphene-integrated waveguides and cavities. However, efficient control of light emission such as lasing, using graphene, remains a challenge. In this work, we demonstrate on/off switching of single- and double-cavity photonic crystal lasers by electrical gating of a monolayer graphene sheet on top of photonic crystal cavities. The optical loss of graphene was controlled by varying the gate voltage V-g, with the ion gel atop the graphene sheet. First, the fundamental properties of graphene were investigated through the transmittance measurement and numerical simulations. Next, optically pumped lasing was demonstrated for a graphene-integrated single photonic crystal cavity at V-g below-0.6 V, exhibiting a low lasing threshold of -4801 mu W, whereas lasing was not observed at V-g above -0.6 V owing to the intrinsic optical loss of graphene. Changing quality factor of the graphene-integrated photonic crystal cavity enables or disables the lasing operation. Moreover, in the double-cavity photonic crystal lasers with graphene, switching of individual cavities with separate graphene sheets was achieved, and these two lasing actions were controlled independently despite the close distance of -2.2 mu m between adjacent cavities. We believe that our simple and practical approach for switching in graphene-integrated active photonic devices will pave the way toward designing high-contrast and ultracompact photonic integrated circuits.</P>