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An enduring concern of Robert Dreeben’s work is the conditions of classroom instruction (Dreeben [1968] 2002; Barr and Dreeben 1983; Dreeben and Barr 1988). Whether it is the conditions influencing classroom goodwill (Bidwell, Chapter 3, this volume) or the compositional effects on instructional methods, Dreeben repeatedly brings readers’ attention to how the social organization of schools rela...

Introduction: many surgical techniques –both through the perineal and abdominal routes– have been described for the treatment of rectal prolapse. The aim of this work is to evaluate the clinical and functional outcome with Delorme’s perineal procedure. Patients and methods: twenty-one patients with complete rectal prolapse were studied from July 2000 to October 2005. Age, gender, anesthetic ris...

Propolis is produced by honeybees and has many biological properties, including immunomodulatory, antiinflammatory, anti-oxidant, anti-bacterial, anti-viral and anti-cancer actions. Five ethanol extracts of Brazilian propolis were tested for inhibition of 12-O-tetradecanoylphorbol-13-acetate (TPA)-induced inflammation in mice. The ethanol extract of Brazilian propolis AF-08 markedly inhibited T...

We conducted a study to investigate the motivational dynamics of protest participation. Previous research suggests that instrumental and identity motives together with group-based anger predict people’s intentions to participate in protest. The present research combines these motives with ideology into a single model. So far, no study has tested such a model or attempted to assess the motives’ ...

Sami C. Al-Izzi, George Rowlands, Pierre Sens, and Matthew S. Turner Department of Mathematics, University of Warwick, Coventry CV4 7AL, United Kingdom Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom Institut Curie, PSL Research University, CNRS, Physical Chemistry Curie, F-75005 Paris, France Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR 168, F-75005 Paris,...

Large RNAs can collapse into compact conformations well before the stable formation of the tertiary contacts that define their final folds. This study identifies likely physical mechanisms driving these early compaction events in RNA folding. We have employed time-resolved small-angle X-ray scattering to monitor the fastest global shape changes of the Tetrahymena ribozyme under different ionic ...

BIOFEEDBACK Blachinsky et al. (1) described a procedure they term controlled and ordered oligonucleotides ligations (COOL), which we agree will be an extremely useful procedure for scientists attempting to create tandemly reiterated sequences in plasmids. We are writing to point out that we described a technique very similar to this one in a series of articles starting with a paper published in...

Aim: when programming a medical test such as capsule endoscopy (CE), finding the closest point between the patient’s experience and his/her expectation is essential to improve any further explorations. For this purpose we designed a form which tries to collect the information required. Material and methods: from December 2003 to January 2005 we examined the small intestine of 98 patients with t...