ADM1 can be applied to continuous bio-hydrogen production using a variable stoichiometry approach.

The IWA Anaerobic Digestion Model No.1 (ADM1) has been extensively used in recent years. However, its application to non-methanogenic systems is limited by the use of constant-stoichiometry to describe product formation from carbohydrate fermentation.

[Gastrointestinal nematode parasitism in ewes and lambs raised in São Carlos, São Paulo].

Gastrointestinal nematode infections were evaluated in Santa Inês crossbreed sheep (Santa Inês predominance) in a rotational grazing system and in lambs kept indoors, born from the breeding of these females with purebred Santa Ines, Dorper and Suffolk males. Fecal egg counts (FEC), fecal cultures, packed cell volume (PCV) and weights were evaluated during two years. Climate data were registered.

Radiosurgery with a linear accelerator in cerebral arteriovenous malformations.

Objective: To evaluate results achieved with radiosurgery and complications of the procedure when treating arteriovenous malformations with linear accelerator.

Methods: This retrospective study was conducted between October 1993 and December 1996. Sixty-one patients with arteriovenous malformations were treated with radiosurgery utilizing a 6MV energy linear accelerator.

Sperm defect severity rather than sperm Source is associated with lower fertilization rates after intracytoplasmic sperm injection.

Objective: To evaluate the impact of sperm defect severity and the type of azoospermia on the outcomes of intracytoplasmic sperm injection (ICSI).

Materials And Methods: This study included 313 ICSI cycles that were divided into two major groups according to the source of spermatozoa used for ICSI: 1) Ejaculated (group 1; n = 220) and 2) Testicular/Epididymal (group 2; n = 93). Group 1 was subdivided into four subgroups according to the results of the semen analysis: 1) single defect (oligo-[O] or astheno-[A] or teratozoospermia-[T], n = 41), 2) double defect (a combination of two single defects, n = 45), 3) triple defect (OAT, n = 48), and 4) control (no sperm defects; n = 86).

Quality of life and acute toxicity of radiotherapy in women with gynecologic cancer: a prospective longitudinal study.

Objective: To investigate the incidence of acute toxicity of radiotherapy, evaluate quality of life (QOL) and identify its predictors in a cohort of gynecologic cancer patients.

Methods: A longitudinal prospective study was conducted including 107 women between the ages of 18 and 75 years with cervical or endometrial cancer. Acute toxicity was evaluated according to the Common Toxicity Criteria and the Radiotherapy Oncology Group toxicity criteria.

Influence of antisperm antibodies in the semen on intracytoplasmic sperm injection outcome.

Objective: The aim of this study was to analyze the influence of autoantibodies against spermatozoa present in the semen on the outcome of in vitro fertilization with intracytoplasmic sperm injection (ICSI).

Materials And Methods: We performed a retrospective analysis of clinical and laboratorial data from a six year-period ICSI cycles. Screening for the presence of ASA in the semen, by using the direct immunobeads test (IBT), was available for 351 cycles.

Observer design in switching control of neuromuscular blockade: clinical cases.

This paper concerns the application of multiple model switched methods to the control of neuromuscular blockade of patients undergoing anaesthesia. Since the model representing the neuromuscular blockade process is subject to a high level of uncertainty due both to inter-patient variability and time variations, switched methods provide the adaptation capability needed to achieve the desired performance. The paper contributions are twofold: first, it is shown that, for the type of process control problem considered, the design of the associated observer must be carefully performed.

Effects of pentoxifylline treatment before freezing on motility, viability and acrosome status of poor quality human spermatozoa cryopreserved by the liquid nitrogen vapor method.

The objective of the present study was to investigate the effects of the direct addition of pentoxifylline (PF) to the ejaculates of men with poor sperm quality before freezing on post-thaw sperm motility, viability, acrosome integrity, and agonist-induced acrosome reaction. Semen specimens from 16 infertile men with impaired sperm count and motility (oligoasthenozoospermia) were divided into two equal aliquots: one received no treatment (control) while the other was incubated with 5 mM PF (treated). Both aliquots were cryopreserved by the liquid nitrogen vapor method.

Evaluation of acrosomal status and sperm viability in fresh and cryopreserved specimens by the use of fluorescent peanut agglutinin lectin in conjunction with hypo-osmotic swelling test.

Objective: In this study, we evaluated whether the hypo-osmotic swelling test (HOST) can be used as a vital marker in combination with peanut agglutinin (PNA) - labeling in fresh and cryopreserved spermatozoa.

Materials And Methods: Human sperm populations were exposed to a hypo-osmotic medium for 60 minutes, and then incubated in a 1 microg/mL solution of the fluorescent dye Hoescht 33258 (H33258) for 10 minutes. Excess stain was removed by washing in phosphate-buffered saline (PBS) solution, and the pellet was resuspended in 100 microL of culture medium.

Quality of life of women with gynecologic cancer: associated factors.

Objective: To evaluate quality of life (QOL) and identify its associated factors in a cohort of women with gynecologic cancer.

Methods: A cross-sectional study was conducted, including 103 women with cervical or endometrial cancer, aged between 18 and 75 years who were receiving their entire treatment at the institution where the investigation was carried out. QOL was measured by the World Health Organization's QOL instrument-abbreviated version (WHOQOL-BREF).

Simultaneous pancreas-kidney transplantation: five-year results from a single center.

We report the 5-year results of our simultaneous pancreas-kidney transplantation (SPKT) program, started on May 2, 2000. Forty-two SPKT were performed on 42 type I diabetic patients with chronic renal failure. The procedure was performed with enteric diversion and vascular anastomosis to the iliac vessels.

Recovery of spermatogenesis after microsurgical subinguinal varicocele repair in azoospermic men based on testicular histology.

Objective: Analyze whether testicular histologic patterns from a group of azoospermic men with varicocele is predictive of treatment outcome after subinguinal microsurgical varicocele repair.

Materials And Methods: Seventeen azoospermic men underwent bilateral open single testis biopsy and microsurgical subinguinal repair of clinical varicoceles.

Results: Histopathology of testicular biopsies revealed hypospermatogenesis (HYPO) in 6 men, maturation arrest (MA) in 5, and Sertoli cell-only (SCO) in 6.

Hipocrates: a robust system for the control of neuromuscular blockade.

Objective: Development of an automatic system (software package Hipocrates) for the control of neuromuscular blockade by continuous infusion of the non-depolarising types of muscle relaxant drugs presently used in anaesthesia, namely atracurium, cisatracurium, vecuronium and rocuronium.

Methods: Hipocrates incorporates control strategies based upon classical, adaptive and robust control, as well as a wide range of noise reduction techniques and on-line adaptation to patient-specific characteristics. Therefore, the system provides strong robustness to inter- and intra-individual variability of the patients responses or unexpected circumstances and adaptation to the individual requirements.

Feasibility of refreezing human spermatozoa through the technique of liquid nitrogen vapor.

Objective: To assess the feasibility of refreezing human semen using the technique of liquid nitrogen vapor with static phases.

Materials And Methods: Twenty samples from 16 subjects who required disposal of their cryopreserved semen were thawed, corresponding to 6 cancer patients and 10 participants in the assisted reproduction (AR) program. Samples were refrozen using the technique of liquid nitrogen vapor with static phases, identical to the one used for the initial freezing, and thawed again after 72 hours.

Microcystin-producing blooms--a serious global public health issue.

The investigation on microcystin topics is increasing due to the related ecological and public health risks. Recent investigation confirms a gap in establishing global patterns relating a particular environment to the bloom occurrence of a species and the production of certain microcystin variants. All the results concerning the environmental effects on the microcystin synthesis of one species must be checked in the light of genome diversity.

[Duration and quality of postoperative analgesia after brachial plexus block for shoulder surgery: ropivacaine 0.5% versus ropivacaine 0.5% plus clonidine].

Objectives: Some authors have found that nerve blocks with local anesthetics may last longer if clonidine is added. The present study analyzed the duration and quality of analgesia provided by an interscalene brachial plexus block for shoulder surgery using 0.5% ropivacaine or 0.

Effect of swim-up sperm washing and subsequent capacitation on acrosome status and functional membrane integrity of normal sperm.

Objective: Sperm preparation techniques select sperm population with improved sperm motion characteristics. We sought to determine whether the swim-up technique selects spermatozoa with the ability to undergo hypoosmotic swelling, and how swim-up and subsequent capacitation affect the acrosome reaction rate.

Methods: Semen specimens from 15 normal donors were divided into unprocessed, swim-up, and capacitated groups, and sperm motion characteristics, ability to undergo hypoosmotic swelling, and acrosome reaction rate were measured.

Improvement in motion characteristics and acrosome status in cryopreserved human spermatozoa by swim-up processing before freezing.

The purpose of this study was to examine if selecting a sperm population with improved motion characteristics before freezing reduces the deleterious effects of cryopreservation. Semen specimens from 15 normal donors were divided into two equal aliquots. The first aliquot received no treatment (control), and the second was processed by swim-up from a washed sperm preparation to select a sperm population with better motility and motion characteristics (swim-up).

Azo-dye degradation in an anaerobic-aerobic treatment system operating on simulated textile effluent.

Decolorisation of azo dyes during biological effluent treatment can involve both adsorption to cell biomass and degradation by azo-bond reduction during anaerobic digestion. Degradation is expected to form aromatic amines, which may be toxic and recalcitrant to anaerobic treatment but degradable aerobically. Methods for the quantitative detection of substituted aromatic amines arising from azo-dye cleavage are complex.