20 research outputs found
The effect of Liquid ice after high-intensity exercise on muscle function compared to Block ice
Cryotherapy is used to recover muscle damage after exercise and to treat acute sports injuries. Liquid ice (LI) can keep cold for a long time, and is assumed more effective than block ice (BI). From this, the aim of this study was to investigate the effects of LI on the change of passive stiffness (PS) as muscle function and to validate the effectiveness of LI compared to BI. We performed the experiment as part of a case series of verification of the effects of cryotherapy. 22 healthy men (target area: right leg) were randomized to two groups: LI group and BI group. PS was measured three times during experiment protocol, pre: before exercise; post; after treating each cryotherapy after exercise; 48h: 48 hours after pre. Statistical analysis compared the PS, the amount of change in PS, and the rate of change in PS between the two groups. The rate of change between pre and 48h in LI was significantly lower compared to that in BI (p = 0.03). There was no significant difference regarding other results between groups. It revealed that the difference of effect between LI and BI for PS of muscles after high-intensity exercises. These results could be helpful for the choice of intervention for reducing muscle stiffness after exercise and at sports field
Auto-tracking camera for dry-box laparoscopic training
While laparoscopic surgery is less invasive than open surgery and is now common in various medical fields, laparoscopic surgery often requires more time for the operator to achieve mastery. Dry box training is one of the most important methods for developing laparoscopic skill. However, the camera is usually fixed to a particular point, which is different from practical surgery, during which the operational field is constantly adjusted by an assistant. Therefore, we introduced a camera for dry box training that can be moved by surgeons as desired by using computer vision. By detecting the ArUco marker, the camera attached onto the servomotor successfully tracked the forceps automatically. This system could easily be modified and become operable by a foot switch or voice, and collaborations between surgeons and medical engineers are expected
Lyman Alpha Emitters at z=7 in the Subaru/XMM-Newton Deep Survey Field: Photometric Candidates and Luminosity Function
We conducted a deep narrowband NB973 (FWHM = 200 A centered at 9755 A) survey
of z=7 Lyman alpha emitters (LAEs) in the Subaru/XMM-Newton Deep Survey Field,
using the fully depleted CCDs newly installed on the Subaru Telescope
Suprime-Cam, which is twice more sensitive to z=7 Lyman alpha at ~ 1 micron
than the previous CCDs. Reaching the depth 0.5 magnitude deeper than our
previous survey in the Subaru Deep Field that led to the discovery of a z=6.96
LAE, we detected three probable z=7 LAE candidates. Even if all the candidates
are real, the Lyman alpha luminosity function (LF) at z=7 shows a significant
deficit from the LF at z=5.7 determined by previous surveys. The LAE number and
Lyman alpha luminosity densities at z=7 is ~ 7.7-54% and ~5.5-39% of those at
z=5.7 to the Lyman alpha line luminosity limit of L(Ly-alpha) >~ 9.2 x 10^{42}
erg s^{-1}. This could be due to evolution of the LAE population at these
epochs as a recent galaxy evolution model predicts that the LAE modestly
evolves from z=5.7 to 7. However, even after correcting for this effect of
galaxy evolution on the decrease in LAE number density, the z=7 Lyman alpha LF
still shows a deficit from z=5.7 LF. This might reflect the attenuation of
Lyman alpha emission by neutral hydrogen remaining at the epoch of reionization
and suggests that reionization of the universe might not be complete yet at
z=7. If we attribute the density deficit to reionization, the intergalactic
medium (IGM) transmission for Lyman alpha photons at z=7 would be 0.4 <=
T_{Ly-alpha}^{IGM} <= 1, supporting the possible higher neutral fraction at the
earlier epochs at z > 6 suggested by the previous surveys of z=5.7-7 LAEs, z ~
6 quasars and z > 6 gamma-ray bursts.Comment: Accepted to ApJ for publicatio
Simultaneous Oculomotor and Facial Nerve Palsies in a Patient with Systemic Lupus Erythematosus and Sjögren’s Syndrome
A 70-year-old man with systemic lupus erythematosus (SLE) presented with simultaneous right oculomotor nerve palsy and right facial nerve palsy. Brain magnetic resonance imaging and cerebrospinal fluid analysis revealed no abnormality. Coexistent Sjögren’s syndrome was diagnosed on the basis of anti-SS-A antibody positivity, salivary gland scintigraphy, and histological findings on minor salivary gland biopsy. As there was no obvious cause of multiple cranial neuropathies, we supposed that the palsies were induced by either of the underlying diseases. The patient was treated with a high-dose of prednisolone and intravenous cyclophosphamide, and both palsies recovered almost completely within two weeks
Fatal case of Capnocytophaga sepsis from a dog bite in a patient with splenic hypoplasia
Abstract Background Capnocytophaga canimorsus is an oral commensal bacteria in dogs and may cause severe infection following a dog bite. This is a case of fatal C. canimorsus sepsis with acute infectious purpura fulminans (AIPF) in a healthy patient with splenic hypoplasia. Case Presentation A healthy 49‐year‐old man was admitted to the intensive care unit (ICU) for septic shock and AIPF 4 days after a dog bite to his mouth. Computed tomography revealed a small spleen measuring 53 cm3 but no other source of infection. Despite intensive care, the patient died of multiple organ failure and progressive shock on the fifth ICU day. Polymerase chain reaction of blood samples identified the C. canimorsus gene on a later day. Conclusion Capnocytophaga canimorsus from dog bites may cause fatal AIPF. Splenic hypoplasia and bite wounds in well‐perfused areas such as the oral cavity are possible risk factors for sepsis. All dog bites should warrant medical attention
A survey of public attitudes toward uterus transplantation, surrogacy, and adoption in Japan.
This study aimed to evaluate the attitudes of male and female members of the public toward uterus transplantation (UTx), surrogacy, and adoption in Japan via a web-based survey. One thousand six hundred participants were recruited with equal segregation of age (20s, 30s, 40s, and 50s) and gender. We assessed the association between ethical view and gender, age, infertility, and the knowledge level of UTx, using a questionnaire. The findings were as follows. First, 36.5% and 31.0% of respondents agreed that UTx and gestational surrogacy should be approved, respectively. Second, the respondents would potentially choose to receive UTx (34.4%), gestational surrogacy (31.9%), and adoption (40.3%), if they or their partners experienced absolute uterine factor infertility. Third, 10.1%, 5.8%, and 14.3% of the respondents chose UTx, gestational surrogacy, and adoption as the most favorable option, respectively. Fourth, if their daughters suffered from absolute uterine factor infertility, 32.3% of female respondents might want to be donors, and 36.7% of male respondents might ask their wives to be donors. These data were affected by age, gender, infertility, or the knowledge level of UTx. UTx was a more acceptable option than gestational surrogacy and adoption. The effects of gender, age, infertility, and the level of knowledge of UTx are important in understanding the attitude toward UTx. On the other hand, there were concerns about the safety of UTx for recipients, donors, and babies. It is important to continue to understand public attitudes to inform the development and safety of UTx, which will enhance the discussion on the ethical consensus on UTx
Study outline.
Diagram showing the performance and weaknesses of the device, completed devices, and blastocysts.</p