Productive use of energy of women-owned micro-, small-, and medium-sized enterprises: Insights from food and textile businesses in selected African countries.

This paper presents a descriptive study focusing on the productive energy use of women-owned micro-, small-, and medium-sized enterprises that operate in Africa's food and textile sectors. Through a multidisciplinary approach, combining primary and secondary data collection methods, and integrating quantitative and qualitative tools, this study examines the relationship between the gender-based ownership structure of enterprises (i.e., sole female, female-female, and female-male) and energy consumption patterns, including demand levels, carrier use, access type (on-grid or off-grid), and expenditure. Despite limitations in scope and sample size, the findings shed light on gender-specific productive use practices. Findings show that female-owned businesses primarily rely on single or dual energy carriers, contrasting with female-male enterprises, which typically employ two or more energy carriers. Fuel usage varies among ownership structures, with diesel, biomass, and liquified petroleum gas being notable choices. Increasing diversity in ownership correlates with heightened awareness of energy metrics and monthly demand for electric and mechanical power, with some of the latter correlation also observed for thermal energy. Moreover, as ownership diversity increases, energy expenditure per kilogramme of production output decreases. Some sole female-owned enterprises surpass 100 USD/kg/month, female-female partnerships may reach 100 USD/kg/month, whereas female-male co-owned enterprises remain below 10 USD/kg/month. Beyond contributing to understanding gendered productive energy practices, this research also emphasises the importance of gender mainstreaming in productive use and energy access interventions. It highlights the need for renewable energy solutions, capacity-building programmes, and further research to address efficiency and accessibility challenges faced by women entrepreneurs.

Biogas from the organic fraction of municipal solid waste: dealing with contaminants for a solid oxide fuel cell energy generator.

The present work investigates electricity production using a high efficiency electrochemical generator that employs as fuel a biogas from the dry anaerobic digestion of the organic fraction of municipal solid waste (OFMSW). The as-produced biogas contains several contaminants (sulfur, halogen, organic silicon and aromatic compounds) that can be harmful for the fuel cell: these were monitored via an innovative mass spectrometry technique that enables for in-line and real-time quantification. A cleaning trap with activated carbons for the removal of sulfur and other VOCs contained in the biogas was also tested and monitored by observing the different breakthrough times of studied contaminants. The electrochemical generator was a commercial Ni anode-supported planar Solid Oxide Fuel Cell (SOFC), tested for more than 300 h with a simulated biogas mixture (CH4 60 vol.%, CO2 40 vol.%), directly fed to the anode electrode. Air was added to promote the direct internal conversion of CH4 to H2 and CO via partial oxidation (POx). The initial breakthrough of H2S from the cleaning section was also simulated and tested by adding ∼1 ppm(v) of sulfur in the anode feed; a full recovery of the fuel cell performance after 24h of sulfur exposure (∼1 ppm(v)) was observed upon its removal, indicating the reliable time of anode exposure to sulfur in case of exhausted guard bed.

Male bulbourethral sling after radical prostatectomy: intermediate outcomes at 2 to 4-year followup.

PURPOSE: We reviewed our experience with 49 consecutive patients undergoing a male sling procedure. MATERIALS AND METHODS: The 7-item International Prostate Symptom Score and 22-item incontinence quality of life questionnaire (although not validated in Italian) were used to assess the clinical impact of the bulbourethral sling. Surgical outcome was also assessed by videourodynamics at 1 year. Urodynamic success was defined as no leakage during videourodynamic evaluation. RESULTS: Mean followup was 32 months (range 26 to 48). Preoperatively 3 patients used 2 pads daily (mild incontinence), 34 used 3 to 5 (moderate incontinence) and the remaining 12 used more than 5 (severe incontinence). Clinical success was defined as a decrease in pad use to completely dry (no pad) or to social continence (1 pad daily) at followup. Of the 49 patients 38 (77%), 33 (67%) and 63% (31) were considered socially continent at the 3-month, 1-year and 3-year followup, respectively. Only 15 of the 49 patients (30%) were considered completely dry at the 3-year followup. Significant perineal pain was reported in the early postoperative period but it resolved in all patients. Infection occurred in 3 patients, while no erosion was found. CONCLUSIONS: The male perineal sling is a safe surgical option for post-prostatectomy urinary incontinence, especially when strict patient selection is done. Patient satisfaction is superior to urodynamic results and the procedure allows physiological voiding. Patients should be informed of the possibility of progressive failure with time and significant perineal pain in the early postoperative period.

Dorsal buccal mucosa graft urethroplasty for female urethral strictures.

PURPOSE: We describe the feasibility and complications of dorsal buccal mucosa graft urethroplasty in female patients with urethral stenosis. MATERIALS AND METHODS: From April 2005 to July 2005, 3 women 45 to 65 years old (average age 53.7) with urethral stricture disease underwent urethral reconstruction using a dorsal buccal mucosa graft. Stricture etiology was unknown in 1 patient, ischemic in 1 and iatrogenic in 1. Buccal mucosa graft length was 5 to 6 cm and width was 2 to 3 cm. The urethra was freed dorsally until the bladder neck and then opened on the roof. The buccal mucosa patch was sutured to the margins of the opened urethra and the new roof of the augmented urethra was quilted to the clitoris corpora. RESULTS: In all cases voiding urethrogram after catheter removal showed a good urethral shape with absent urinary leakage. No urinary incontinence was evident postoperatively. On urodynamic investigation all patients showed an unobstructed Blaivas-Groutz nomogram. Two patients complained about irritative voiding symptoms at catheter removal, which subsided completely and spontaneously after a week. CONCLUSIONS: The dorsal approach with buccal mucosa graft allowed us to reconstruct an adequate urethra in females, decreasing the risks of incontinence and fistula.