Ozonized biochar filtrate effects on the growth of Pseudomonas putida and cyanobacteria Synechococcus elongatus PCC 7942.

Background: Biochar ozonization was previously shown to dramatically increase its cation exchange capacity, thus improving its nutrient retention capacity. The potential soil application of ozonized biochar warrants the need for a toxicity study that investigates its effects on microorganisms.

Results: In the study presented here, we found that the filtrates collected from ozonized pine 400 biochar and ozonized rogue biochar did not have any inhibitory effects on the soil environmental bacteria Pseudomonas putida, even at high dissolved organic carbon (DOC) concentrations of 300 ppm.

The Impact of Surgery on the Survival of Patients with Recurrent Glioblastoma.

Objective: The purpose of this study was to investigate the possible benefit of repeat surgery on overall survival for patients with recurrent glioblastoma multiforme (GBM).

Methods: We performed a retrospective analysis of data from patients who presented with recurrent GBM over a 5-year period ( = 157), comparing baseline characteristics and survival for patients who had at least 1 new tumor resection followed by chemotherapy (reoperation group, = 59) and those who received medical treatment only (no-reoperation group, = 98) for recurrence.

Results: The baseline characteristics of the two groups differed in terms of WHO performance status (better in the reoperation group), mean age (60 years in the reoperation group vs.

Outcome of glioblastoma resection in patients 80 years of age and older.

Objective: To evaluate the role and possible complications of tumor resection in the management of glioblastoma (GBM) in a series of patients 80 years of age and older with review of literature.

Methods: The authors retrospectively analyzed cases involving patients 80 years or older who underwent biopsy or initial resection of GBM at their hospital between 2007 and 2018. A total of 117 patients (mean age 82 years) met the inclusion criteria; 57 had resection (group A) and 60 had biopsy (group B).

Survivability of Wild-Type and Genetically Engineered BP1 with Different Temperature Conditions.

Introduction: BP1 is a thermophilic strain of cyanobacteria that has an optimum growth at 57°C, and according to previous analysis by Yamaoka et al, BP1 cannot survive at a temperature below 30°C. This suggests that the thermophilic property of this strain may be used as a natural biosafety feature to limit the spread of genetically engineered (GE) organisms in the environment if physical containment fails.

Objective: To further explore the growth and survivability range of BP1, we report a growth and survivability assay of wild-type and GE BP1 strains under different conditions.

Fertility after Endoscopic Surgery for Ectopic Pregnancy Management in Point "G" Teaching Hospital, Bamako-Mali.

Endoscopic surgery of ectopic pregnancy is actually the gold standard for the management of fallopian tubal diseases. A survey was conducted to evaluate fertility in patients who underwent endoscopic management for ectopic pregnancy. A retrospective study was conducted at the department of general and endoscopic surgery of the Point "G" teaching hospital, in Bamako, Mali, from January 1st 2007 to December 31, 2016.