The response of methanogens to thawing permafrost is an important factor for the global greenhouse gas budget. We tracked methanogenic community structure, activity, and abundance along the degradation of sub-Arctic palsa peatland permafrost. We observed the development of pronounced methane production, release, and abundance of functional (mcrA) methanogenic gene numbers following the transiti...

In Caenorhabditis elegans, the DBL-1 pathway, a BMP/TGFbeta-related signaling cascade, regulates body size and male tail development. We have cloned a new gene, sma-9, that encodes the C. elegans homolog of Schnurri, a large zinc finger transcription factor that regulates dpp target genes in Drosophila. Genetic interactions, the sma-9 loss-of-function phenotype, and the expression pattern sugge...

This work presents the effect of ammonia nitrogen concentration and zeolite addition on the specific methanogenic activity (SMA) of different anaerobic sludges with various physical structures (granular and flocculent), operating in batch conditions. Piggery, malting production and urban sludges derived from full-scale anaerobic reactors were tested in the experiment as the source of inoculum i...

The removal of Total and Volatile Suspended Solids (TSS/VSS) was studied in a pilot-scale UASB (Upflow Anaerobic Sludge Bed) reactor treating settled sewage under subtropical conditions (Salta, Argentina). The effect of sludge bed height (hsb) and upflow velocity (Vup) on the removal of TSS and VSS was assessed. TSS and VSS removal efficiencies of up to 95% have been achieved when Vup ≤ 0.43 m/...

We investigated movement-related change in the cortical EEG signal by simultaneous recording from the primary sensorimotor area (S1-M1) and the supplementary motor area proper (SMA proper) in four patients with intractable partial epilepsy. By the use of temporal spectral evolution (TSE) analysis, the change in background cortical activity in relation to self-paced finger/wrist extension was co...

primary sarcomas of the kidney are exceptional. among renal sarcomas, leiomyosarcoma is the most common histologic subtype amounting to 50-60% of all cases. the tumor usually arises from either the renal capsule or smooth muscle tissue in the renal pelvic wall. in this paper, we report a patient with leiomyosarcoma of the kidney presented with non-specific abdominal pain and a palpable mass. hi...

Accumulation of substrate onto the biomass was quantified under steady-state and shock conditions in a fixed bed reactor fed with an oleic acid-based synthetic effluent. The accumulation of substrate onto the sludge was more dependent on oleic acid concentration than on oleic acid loading rate and decreased the acetogenic, acetoclastic and hydrogenophilic activity. However, even when the methan...

Biomass from two full-scale anaerobic digester treating different wastes regarding to nitrogen concentrations and operating under different hydraulic retention time was characterized by methanogenic batch activity assays at different ammonia concentrations. Two several different patterns regarding activity and microbial parameters was demonstrated depending on operational conditions and methano...

Eighty patients with type 1 (insulin-dependent) diabetes (ages 0-39 years) were consecutively recruited by the Belgian Diabetes Registry. Sera obtained at clinically diagnosed onset (i.e., before start of insulin therapy or within 7 days of initial treatment) were analyzed for total 1gM concentrations and for 1gM binding to fixed rat splenocytes (lgM-LyAb) and permeabilized rat islet cells (lgM...