Conventional crop height measurements performed using aerial drone images require 3D reconstruction results of several aerial images obtained through structure from motion. Therefore, they require extensive computation time and their measurement accuracy is not high; if the 3D reconstruction result fails, several aerial photos must be captured again. To overcome these challenges, this study proposes a high-precision measurement method that uses a drone equipped with a monocular camera and real-time kinematic global navigation satellite system (RTK-GNSS) for real-time processing.
View Article and Find Full Text PDFThis paper attempts to extend the concept of the equilibrium point to what is called equilibrium space, which can adapt to a system in which there exists an infinite number of equilibrium points. In the context of Lyapunov's linearization method extended for the equilibrium space, this paper proposes a pseudo linearization, from which we can derive a linear representation for a nonlinear system. The equilibrium state of this pseudo linearization and its stability are shown to be the same as that of the original nonlinear system.
View Article and Find Full Text PDFTreatment of Candidemia has become increasingly complicated as more and more non-albicans Candida species are being isolated in recent years.We launched an investigation of the species, the MIC value, and the state of administration of antifungal drugs for all the cases with Candida spp. confirmed by blood cultures for the 7-year period from 2012 to 2018 at our hospital.
View Article and Find Full Text PDFIntroduction: Aims of this study were (a) to assess the development ratio of hyponatremia during treatment with linezolid and (b) to evaluate the relationship between the risk of hyponatremia and linezolid exposure and patient background.
Method: Clinical data including linezolid serum concentrations and serum sodium values were collected at Toyama University Hospital and Kyorin University Hospital. Data from 89 patients were used for the analysis, and a nadir serum sodium level ≤130 mmol/L during the treatment with linezolid was defined as hyponatremia.
Some neural network can be trained by transfer learning, which uses a pre-trained neural network as the source task, for a small target task's dataset. The performance of the transfer learning depends on the knowledge (i.e.
View Article and Find Full Text PDFWe herein report a case of simultaneous amebic colitis and cytomegalovirus (CMV) enteritis in an HIV-infected patient. The patient was a 40-year-old man who developed bloody stool and diarrhea. We diagnosed him with severe amebic colitis associated with HIV infection and administered metronidazole.
View Article and Find Full Text PDFAim: To seek the cause of Burkholderia cepacia complex (Bcc) infection outbreak and evaluate the efficacy of new methods for nebulizer maintenance.
Methods: We investigated the annual number of Bcc isolates recovered from clinical samples in our hospital between 1999 and 2013. Swab samples were randomly collected for bacterial culture before patient use from 10 each of the two machine types in August 2001; these included 20 samples from each of the following: Drain tubes, operating water chambers, oscillators, and nebulizing chambers.
Antimicrobials are commonly used to treat acute respiratory tract infection in adults. Furthermore, their overuse has raised concern. We conducted a field survey study that included 170 medical institutions from January 2008 to June 2010.
View Article and Find Full Text PDFFrom October 2006 to September 2007, we collected the specimen from 356 patients with lower respiratory tract infections in 14 institutions in Japan, and investigated the susceptibilities of isolated bacteria to various antibacterial agents and patients' characteristics. Of 414 strains that were isolated from specimen (mainly from sputum) and assumed to be bacteria causing in infection, 407 strains were examined. The isolated bacteria were: Staphylococcus aureus 64, Streptococcus pneumoniae 96, Haemophilus influenzae 87, Pseudomonas aeruginosa (non-mucoid) 52, P.
View Article and Find Full Text PDFA 29-year-old man with HIV infection was referred to our department because of a 1-month history of low-grade fever and fatigue. Bone marrow aspiration and biopsy showed findings consistent with haemophagocytic syndrome (HPS), and immunohistochemical assessment showed cytomegalovirus (CMV) infection. HIV-associated HPS can occur at any stages of HIV disease and requires diverse differential diagnosis.
View Article and Find Full Text PDFBackground: The National Healthcare Safety Network transitioned from surgical site infection (SSI) rates to the standardized infection ratio (SIR) calculated by statistical models that included perioperative factors (surgical approach and surgery duration). Rationally, however, only patient-related variables should be included in the SIR model.
Methods: Logistic regression was performed to predict expected SSI rate in 2 models that included or excluded perioperative factors.
Yearly changes in the susceptibility of clinical isolates to ulifloxacin (UFX) and other fluoroquinolones were examined through surveys over 3 periods. In the first survey, 534 strains derived from 19 species were collected from clinical specimens during 6 months from December 2003 to May 2004. In the same way, 805 strains were collected from December 2005 to May 2006 in the second survey, and 863 strains were from December 2007 to May 2008 in the third survey.
View Article and Find Full Text PDFOptimal management of steroid therapy for severe pneumonia is an urgent issue. One hundred forty-eight elderly patients enrolled in our study were treated for severe pneumonia in a university hospital in Tokyo from 1998 through 2002. Steroid drugs were given to 82 patients (55.
View Article and Find Full Text PDFAlthough mycoplasmal pneumonia has been generally considered to be a disease with good prognosis, a pathogenic host immune response has been associated with its occurrence. In the present study, the pathogenic significance of the immune response was examined using germ-free mice either infected intranasally with Mycoplasma pneumoniae or inoculated with M. pneumoniae antigens (soluble antigen and partially purified antigen).
View Article and Find Full Text PDFFrom October 2005 to September 2006, we collected the specimen from 366 patients with lower respiratory tract infections in 12 institutions in Japan, and investigated the susceptibilities of isolated bacteria to various antibacterial agents and patients' characteristics. Of 411 strains that were isolated from specimen (mainly from sputum) and assumed to be bacteria causing in infection, 406 strains were examined. The isolated bacteria were: Staphylococcus aureus 70, Streptococcus pneumoniae 85, Haemophilus influenzae 78, Pseudomonas aeruginosa (non-mucoid) 46, P.
View Article and Find Full Text PDFFrom October 2004 to September 2005, we collected the specimen from 319 patients with lower respiratory tract infections in 12 institutions in Japan, and investigated the susceptibilities of isolated bacteria to various antibacterial agents and patients' characteristics. Of 383 strains that were isolated from specimen (mainly from sputum) and assumed to be bacteria causing in inflammation, 381 strains were examined. The breakdown of the isolated bacteria were: Staphylococcus aureus 87, Streptococcus pneumoniae 80, Haemophilus influenzae 78, Pseudomonas aeruginosa (non-mucoid) 35, P.
View Article and Find Full Text PDFThis study was performed to examine the ability of ciprofloxacin (CPFX) to suppress the inflammation associated with lipopolysaccharide (LPS) and an inflammatory cytokine in gram-negative bacterial pneumonia. For this purpose we measured viable cell counts in bronchoalveolar lavage fluid (BALF), LPS concentrations in BALF, and BALF levels of tumor necrosis factor-alpha (TNF-alpha) and interleukin-10 (IL-10) in mice exposed to Klebsiella pneumoniae. We used three groups of mice: controls, treated with physiological saline; mice treated with CPFX; and mice treated with ceftadizime (CAZ).
View Article and Find Full Text PDFWiskott-Aldrich syndrome (WAS) is caused by mutations in the gene encoding WAS protein (WASP ). Recently, somatic mosaicism caused by reversions or second-site mutations has been reported in some inherited disorders including WAS. In this article, we describe somatic mosaicism in a 15-year-old WAS patient due to a second-hit mutation in the initiation codon.
View Article and Find Full Text PDFFrom October 2003 to September 2004, we collected the specimen from 399 patients with lower respiratory tract infections in 12 institutions in Japan, and investigated the susceptibilities of isolated bacteria to various antibacterial agents and patients' characteristics. Of 474 strains that were isolated from specimen (mainly from sputum) and assumed to be bacteria causing in inflammation, 469 strains were examined. The breakdown of the isolated bacteria were: Staphylococcus aureus 76, Streptococcus pneumoniae 81, Haemophilus influenzae 84, Pseudomonas aeruginosa (non-mucoid) 56, P.
View Article and Find Full Text PDFAs antimicrobial therapy for pneumonia has not been well established in Japan, this study was designed to obtain a more definitive standard for antimicrobial treatment of this condition. Two hundred and thirty-one emergency patients admitted to Kyorin University Hospital between January 1998 and December 2000 were retrospectively analyzed in respect to their age, underlying disease, causative organism, and primary treatment with antimicrobial agent. Furthermore, the severity and prognosis were analyzed for those patients who had not responded to initial treatment with antimicrobial agents.
View Article and Find Full Text PDFFrom October 2002 to September 2003, we collected the specimen from 476 patients with lower respiratory tract infections in 16 institutions in Japan, and investigated the susceptibilities of isolated bacteria to various antibacterial agents and patients' characteristics. Of 584 strains that were isolated from specimen (mainly from sputum) and assumed to be bacteria causing in inflammation, 578 strains were examined. The breakdown of the isolated bacteria were: Staphylococcus aureus 77, Streptococcus pneumoniae 103, Haemophilus influenzae 95, Pseudomonas aeruginosa (non-mucoid) 61, P.
View Article and Find Full Text PDFFrom October 2001 to September 2002, we collected the specimen from 370 patients with lower respiratory tract infections in 16 institutions in Japan, and investigated the susceptibilities of the isolated bacteria to various antibacterial agents and antibiotics and patients' characteristics. Of 458 strains that were isolated from specimen (mainly from sputum) and assumed to be bacteria causing in inflammation, 456 strains were investigated. The breakdown of the isolated bacteria were: Staphylococcus aureus 69, Streptococcus pneumoniae 72, Haemophilus influenzae 85, Pseudomonas aeruginosa (non-mucoid) 44, P.
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