Proximity fuses for mortar ammunition

W pracy przedstawiono ogólne koncepcje zapalników zbliżeniowych do amunicji moździerzowej, których konstrukcje wykonano i przebadano w Zakładzie Uzbrojenia Artyleryjskiego w ramach realizacji projektu badawczego rozwojowego nr R00 0001 06.In this paper we present the conception of the proximity fuzes for mortar ammunition which was invented in MIAT during realization of the project No R00 0001 06 financially supported by Polish Ministry of Science and High Education

Laboratory tests of the laser proximity fuses for mortar ammunition

W pracy przedstawiono wyniki badań laboratoryjnych radiowego zapalnika zbliżeniowego do amunicji moździerzowej, który wykonano i przebadano w Zakładzie Uzbrojenia Artyleryjskiego w ramach realizacji projektu badawczego rozwojowego nr R00 0001 06.In this paper we present the laboratory tests of the radar proximity fuze for mortar ammunition

Cognitive function, depression, and anxiety in patients undergoing radical prostatectomy with and without adjuvant treatment

Piotr Jarzemski,1 Bartosz Brzoszczyk,1 Alicja Popiołek,2 Agnieszka Stachowicz-Karpińska,2 Szymon Gołota,2 Maciej Bieliński,2 Alina Borkowska2 1Department of Laparoscopic, General, and Oncological Urology, Jan Biziel University Hospital No 2, Bydgoszcz, Poland; 2Department of Clinical Neuropsychology, Nicolaus Copernicus University in Toruń, Collegium Medicum, Bydgoszcz, Poland Background: Prostate cancer (PC) is one of the most common malignant tumors in developed countries. Both PC and treatment for PC have an adverse impact on physical and mental well-being, and are associated with decreased quality of life. The aim of the present study was to examine the relationship between neuropsychological symptoms and clinical course in PC patients undergoing radical prostatectomy with or without adjunct therapy.Methods: The cohort comprised 100 patients aged 50–77 years who underwent radical, laparoscopic prostatectomy for PC. Twenty-three patients with a more advanced clinical stage also received adjuvant therapy (radiotherapy and hormonotherapy). Clinical evaluation included self-report assessment, physical examination, and biochemical tests (testosterone and prostate-specific antigen). In addition, the presence and intensity of sexual dysfunction, urinary dysfunction, anxiety-depressive symptoms, and cognitive dysfunction were assessed.Results: The group of patients undergoing complex therapy was characterized by a significantly worse result of deferred memory (p=0.04). A significant correlation was found between post-surgery erectile function and scores for the visual working memory test (correct answers; VWMT-C; p=0.006) and Hospital Anxiety and Depression Scale depression (p=0.045) and anxiety scores (p=0.02). A trend toward significance was also observed for simple reaction time (correct answers; p=0.09). A significant correlation was found between results for the delayed verbal memory test and all physical symptoms (International Consultation on Incontinence Questionnaire-total, p=0.02; International Index of Erectile Function-5, p=0.006). Similarly, a significant correlation was found between the VWMT-C and score for sexual dysfunction (p=0.003).Conclusion: Patients undergoing both surgical and adjunct therapy for PC are at risk for psychological burden and cognitive disorders. In the present cohort, physical complications of therapy were associated with depression, anxiety, and delayed memory dysfunction. Furthermore, this study has proven that fewer complications after surgery are associated with better psychological and cognitive functioning. Appropriate neuropsychological and psychiatric care can improve compliance and quality of life among patients after prostatectomy. Keywords: prostate cancer, cognition, anxiety, depression, sexual dysfunctio

Determination of amino acids in urine of patients with prostate cancer and benign prostate growth

Prostate cancer is the leading type of cancer diagnosed in men. Serum prostate-specific antigen levels and digital rectal exam are far from perfect when it comes to differentiation of patients with prostate cancer and benign prostatic hyperplasia. In this study, we attempt to determine whether amino acids can be used as prostate cancer biomarkers. Concentrations of derivatized amino acids and amines were quantified by liquid chromatography tandem mass spectrometry. A total of 100 urine samples from the two groups including samples provided before and after prostate massage were examined quantitatively for amino acid and amine concentrations with 50 urine samples collected from cancer patients and 50 samples from patients diagnosed with benign prostatic hyperplasia. Arginine, homoserine, and proline were more abundant in urine samples of cancer patients compared with arginine, homoserine, and proline levels determined in urine collected from patients with benign growth. We also show that sarcosine is not a definitive indicator of prostate cancer when analyzed in urine samples collected either before or after prostate massage