The functionalization of alkenes is one the most important conversions in synthetic chemistry to prepare numerous fine chemicals. Typical procedures, such as hydrosilylation and hydroformylation, are traditionally catalyzed using homogeneous noble metal complexes, while highly reactive stable heterogeneous single-atom catalysts (SACs) now provide alternative approaches fulfill these by combinin...

Pregnant Charles Foster rats were subjected to amniotic sac puncture on day 15 of gestation and the effect was observed on parturition. All the control rats as expected delivered on day 22 of gestation. In the group where all the sacs were punctured, only 12.5% rats delivered on day 22 while rest either failed to deliver (62.5%) or died (25%). In the group with unpunctured sacs at vaginal ends,...

1. Isolation of a self-emptying sac of rat small intestine in vivo halved the cell production rate in the crypts of Lieberkühn as measured by colchicine blockade. 2. Starvation for 48 h of rats with isolated intestinal sacs caused a further halving of cell production rate in the sac. 3. Infusion of distilled water into isolated intestinal sacs for 72 h caused a similar degree of stimulation of ...

Compartmentalized signaling in dendritic subdomains is critical for the function of many central neurons. In the retina, individual dendritic sectors of a starburst amacrine cell (SAC) are preferentially activated by different directions of linear motion, indicating limited signal propagation between the sectors. However, the mechanism that regulates this propagation is poorly understood. Here,...

Removal of the anal sacs is a frequently performed surgery in dogs. It is most often indicated for definitive treatment of chronic anal sacculitis. The anal sacs are intimately associated with the external anal sphincter; therefore, fecal incontinence resulting from damage to this muscle or its innervation is a potential complication of anal sacculectomy. Fistula formation and incisional infect...

A new method for quantitatively determining lymph flux from various lymphatic sacs of an anuran, the cane toad, was developed. This method used the dye dilution principle of C(i)V(i)=C(f)V(f) following injection of Evans Blue into specific lymph sacs and measuring its appearance in the venous circulation. The apparent lymph volume was 57 ml kg(-1). The greatest rate of lymph return (0.5-0.8 ml ...

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