Laparoscopic or conventional abdominoperineal extirpation in low rectal cancer

INTRODUCTION: Laparoscopic abdominoperineal resection (LAPR) as a minimally invasive approach for the treatment of large rectal cancer is widely used. It has been proven to be technically feasible and safe with fewer complications and faster postoperative recovery than the open procedure. Our aim was to evaluate LAPR safety and feasibility as compared to the open procedure in large low rectal cancer.PATIENTS AND METHODS: A total of 34 low rectal cancer patients who underwent open APR (OAPR) were matched with 42 patients who underwent LAPR in a one-to-one fashion between 2011 and 2014 in the Divi­sion of General Surgery, Kaspela University Hospital of Plovdiv.RESULTS: Intraoperative parameters of LAPR were better than those of OAPR as followed: mean operation time (121.8±47.8 min versus 152.1±49.2 min), mean operative blood loss (82±30.0 mL versus 120±35.0 mL), mean total number of retrieved lymph nodes (12±1 versus 12±1.4), and percentage of surgical complications (12.3% versus 15.1%). Laparoscopically treated patients showed significantly shorter postoperative analge­sia (2.1±0.7 days versus 3.7±0.6 days), earlier first flatus (36.3±7.9 hours versus 48.5±9.2 hours), shorter uri­nary drainage (3.8±3.4 days versus 5.8±1.3 days), and shorter hospital stay (6.2±1 days versus 8±2.0 days). Local recurrence rate during a three-year period (in 3 versus 4 patients) and metachronous liver metastasis (in 5 versus 6 patients) were less common after LAPR than after OAPR.CONCLUSION: The risks of APR-specific surgical complications such as perineal wound infection and para­stomal hernia were comparable between the laparoscopic and open surgery groups. There were no signifi­cant differences regarding local recurrence and metachronous liver metastasis between these groups. Com­plication and locoregional recurrence rates in low large rectal cancer patients after laparoscopic and open were quite similar. Scr Sci Med 2017; 49(3): 22-2

Мониторинг на хидројаловиштето со системот за евакуација на околните води на рудникот Саса и нивното влијание врз животната средина по течението на Каменичка река, езерото Калиманци и реката Брегалница, 2009-2010, МЖСПП

Мониторинг на хидројаловиштето со системот за евакуација на околните води на рудникот Саса и нивното влијание врз животната средина по течението на Каменичка река, езерото Калиманци и реката Брегалница, 2009-2010, МЖСП

Определување на содржина на тешки метали во почви од Злетово

Во овој труд е определена содржината на 10 тешки метали во 679 примероци од 400m x 400m мрежа од Злетово, со методата на атомско емисиона спектрометрија (As, Cd, Co, Cr, Cu, Pb, Zn и Mn) и атомско абсорпциона спектрометрија со ладни пареи. За идентификување на загадените делови од испитуваната област, е искористена едноелементна статистичка анализа на добиените вредности (exploration data analyses). Најдени се зголемени концентрации за тешките метали во испитуваната област, посебни за Cd, Pb, Zn и Mn, јасно го одцртувааат излевањето на јаловиштето. Исто така високи концентрации на овие метали се најдени и в осеверниот дел од испитуваната област, последица на рударските активности во рудниците Злетово. Се забележуваат и подрачја со високи концентрации за испитуваните тешки метали, за кои причината за зголементи концетрации е од природно потекло, како за Pb, Zn, As во најсеверните подрачја од испитуваната област, или високите концентрации за As во мерните точки јужно и југоисточно од Пробиштип, како и Ni во мерните точки северозападно и југоисточно од испитуваната област

Unit for Measuring the Magnetic Characteristics of Thin Ferromagnetic Films

Studying the properties of ferromagnetic films helps in solving the fundamental problems of the physics of magnetic phenomena and in developing the theory of ferromagnetism. Modern software and hardware, along with reliable diagnostic methods are used to research and design thin-film devices. In this regard, the development of devices and methods for measuring the magnetic characteristics of thin ferromagnetic films is an essential task. The aim of the work is to develop an unit for local measurements of the magnetic characteristics of thin ferromagnetic films, which has the ability to change the degree of locality of measurements over a wide range and has high sensitivity at the same time. The article reviews a new unit for measuring the magnetic characteristics of thin ferromagnetic films. The unit allows measuring the value and direction of the anisotropy field on a local area of the film. A block diagram and description of a new unit, as well as methods of measurements are shown in the article. The experimentally obtained distribution of the anisotropy field over the area of the studied sample of Ni80Fe20 film is shown in this work. The experimental results confirm the compliance of the new unit with the declared characteristics. The unit can be used for non-destructive quality control and for measuring uniformity of thin ferromagnetic films magnetic characteristics

Measuring the Imaginary Part of the Complex Magnetic Permeability of Thin Films Using Resonant and Non-resonant Automated Measuring Systems

This paper considers resonant and non-resonant methods for measuring magnetic characteristics of Ni80Fe20 thin films with 1000 Å thickness. The imaginary part of complex magnetic permeability was measured by using resonant and nonresonant measuring cells. The resonant measuring cell included: a micro-strip line, a lumped capacitance, and an amplitude detector. The non-resonant measuring cell included a short-circuited micro-strip line. The studied sample of thin magnetic film is placed under the shortcircuited micro-strip line. The self-resonant frequency of the non-resonant measuring cell is higher than frequency of the ferromagnetic resonance (in field, equal 14 Oersteds). Ferromagnetic resonance method was used to study the change of measuring cell resonant frequency. The angular dependences of resonant frequency were achieved by the change of angle between constant magnetic field and high-frequency field of excitation, the hard axis of magnetization in thin magnetic film. The measurements were carried out using automation units. A numerical comparison of the obtained results showed that the difference between measurements does not exceed 5%

JICA Project for investigation of the soil quality in Macedonia

Investigation of the soil quality in Macedonia and coparation between soil standard in Macedonia, Netherland, Japan and other EU countries

Kinetic studies of manganese removal from aqueous solution by adsorption on natural zeolite

The kinetics of manganese adsorption onto natural zeolite (clinoptilolite) were studied with respect to initial metal ion concentration and adsorbent mass. In order to select the main rate-determining step in the overall uptake mechanism, a series of experiments were performed under batch conditions from single ion solutions. Data obtained from the kinetic experiments are interpreted in terms of Pseudo-second order kinetic model, Weber and Morris model and model proposed by Furusawa and Smith. The adsorption kinetics is reasonably fast. It means that in the first 20 min approximately 75% of Mn2+ is adsorbed from solutions. From the kinetic data can be concluded that adsorption of manganese ions from solution by natural zeolite is more efficiency at higher adsorbent mass and at lower manganese concentration in solution. Amount of Mn adsorbed on zeolite increase at higher manganese concentration in solution. From the kinetic models, can be concluded that intraparticular diffusion is more likely to be the rate determining step, but at higher concentrations of Mn ions in solution, film diffusion may be take a part in a rate determining step

Kinetic studies of manganese removal from aqueous solution by adsorption on natural zeolite

The kinetics of manganese adsorption onto natural zeolite (clinoptilolite) were studied with respect to initial metal ion concentration and adsorbent mass. In order to select the main rate-determining step in the overall uptake mechanism, a series of experiments were performed under batch conditions from single ion solutions. Data obtained from the kinetic experiments are interpreted in terms of Pseudo-second order kinetic model, Weber and Morris model and model proposed by Furusawa and Smith. The adsorption kinetics is reasonably fast. It means that in the first 20 min approximately 75% of Mn2+ is adsorbed from solutions. From the kinetic data can be concluded that adsorption of manganese ions from solution by natural zeolite is more efficiency at higher adsorbent mass and at lower manganese concentration in solution. Amount of Mn adsorbed on zeolite increase at higher manganese concentration in solution. From the kinetic models, can be concluded that intraparticular diffusion is more likely to be the rate determining step, but at higher concentrations of Mn ions in solution, film diffusion may be take a part in a rate determining step

Curriculum for Development Trends of the Faculty of Mining & Geology-Stip, RM (Transformed and Revised Courses and Programs), TEMPUS-PHARE PROGRAMMES “AC-JEP-13574/98”

Curriculum for Development Trends of the Faculty of Mining & Geology-Stip, RM (Transformed and Revised Courses and Programs), TEMPUS-PHARE PROGRAMMES “AC-JEP-13574/98