The effect of bowel preparation on the outcomes of scheduled colorectal surgery: a comparative study

This scientific study aims to evaluate the effects of bowel preparation on the outcomes of scheduled colorectal surgery. The study included a group of 83 patients, 37 without bowel preparation and 46 with bowel preparation. Perioperative outcomes of patients were evaluated, including surgical site infection (SSI) rates, postoperative complications, and length of hospital stay. The results concluded that bowel preparation before scheduled colorectal surgery has no superiority in reducing SSI and postoperative complications (anastomotic leakage, occurrence of abdominal or pelvic abscesses), as well as shortening the length of hospital stay, and did not show any clear advantage over the patients without mechanical bowel preparation.

Decontextualization: Making Sentences Stand-Alone

Abstract Models for question answering, dialogue agents, and summarization often interpret the meaning of a sentence in a rich context and use that meaning in a new context. Taking excerpts of text can be problematic, as key pieces may not be explicit in a local window. We isolate and define the problem of sentence decontextualization: taking a sentence together with its context and rewriting it to be interpretable out of context, while preserving its meaning. We describe an annotation procedure, collect data on the Wikipedia corpus, and use the data to train models to automatically decontextualize sentences. We present preliminary studies that show the value of sentence decontextualization in a user-facing task, and as preprocessing for systems that perform document understanding. We argue that decontextualization is an important subtask in many downstream applications, and that the definitions and resources provided can benefit tasks that operate on sentences that occur in a richer context.

Evaluation of early results for the maintenance of the pleura is closed during the preparation of the internal mammary artery in patients Undergoing CABG

The main objective of the study is to study the early results of the maintenance of the pleura during the preparation of the internal breast artery in the maintenance of respiratory function and its role in the prevention of respiratory and hemorrhagic complications following its opening and comparison with the global studies conducted in this area. The study included patients with Cabg of both sexes aged between 40 years and 72 years of age who were the EF% from 40% in Tishreen University Hospital in Lattakia as a prospective study during 2017. The study included 30 patients divided into two groups: Fifteen patients had closed their pleura, and the second group (15) patients had pleural ulcers. Patients were followed within one week after surgery. We conclude from our study that hemorrhagic complications and need for blood transfusions and respiratory complications were significantly less when maintaining the pleura closed in the first group.

A Comparative Laboratory Study to Evaluate The Marginal Microleakage in The cavities Prepared by The Laser and The Classic Method which Restored by Using Two Types of Resin Materials

This study aimed to evaluate the extent of the microleakage in the cavities which prepared with Er:YAG (erbium: yttrium aluminum garnet) laser or diamond burs and restored by using of different types of resin materials.

An In-vitro Comparative evaluation shaping ability of two rotary systems: Protaper Universal , Protaper Next and K-file hand instrument in curved root canals of extracted teeth

Aim: to compare the shaping ability of two rotary systems (Protaper Universal and Protaper Next) and K-file hand instruments in curved root canals of extracted human molars. Materials and methods:Thirty extracted molars with curved canals were chosen. The curvature of root canals was determined (15-40o) then the sample was randomly divided into three groups: n1=n2=n3=10. Group(1): was prepared using K-file hand instruments (Stand), group(2): prepared by Protaper Universal (PTU), whereas group3: prepared by Protaper Next (PTN).The curvature after preparation and Time preparationwere evaluated. Data were collected and statistical analysis was conducted. Results: The three instrument systems (PTU, PTN, Stand) have caused significant change in original canal curvature(P<0.05). On the other hand, there were no significant differences between systemsin straightening of canal curvature (P>0.05). However, both systems: PTN, Stand were significantly faster than PTU during preparation of curved canals (P<0,001).Conclusion: under the conditions of this study, it can be concluded thatall instruments caused changing in original canal curvature. However, the new generation PTN was faster than old one PTU.

Preparation some of Phenol ethers which have pharmaceutical applications in green method

Phenol derivatives have been reacted with aryl halides under heterogeneous basic catalyst (Amberlyst-21) using 5 mol% Cu(I) Complex as catalyst, [CuClPPh3]4. The typical reaction has been performed between p-cresol and bromobenzene. This reaction is achieved in o-xylene as solvent. However, the catalyst complex does not dissolve in toluene rather it acts as heterogeneous catalyst. Therefore, it is filtrated at the end of the reaction and reused several times. Accordingly, new compounds were prepared by reacting one of the bromoaryl derivatives with paracetamol. It is anticipated that the synthesized compounds may have pharmaceutical application as non-steroidial anti-inflammatory drugs (NSAIDs).