We have made timing observations of binary pulsar PSR B1534+12 with radio telescopes at Arecibo, Green Bank, and Jodrell Bank. By combining our new observations with data collected up to seven years earlier, we obtain a signiicantly improved solution for the astrometric, spin, and orbital parameters of the system. For the rst time in any binary pulsar system, no fewer than ve relativistic or \p...

An 8-year-old, neutered male Yorkshire Terrier dog presented with left ventromedial canthus swelling over a one-month period, refractory to pharmacological therapy. There was no history of trauma. On ultrasonography, the lesion had cystic character filled anechoic fluid and hyperechoic sedimenting debris. The computed tomography (CT) CT-dacryocystography showed protruding from lacrimal sac foss...

OBJECTIVE Our aim was to provide normative data concerning superior orbital fissure area (SOFA), ocular skin and the substantia nigra (D-SS) and orbital fissure and the substantia nigra (D-SOF-S) distances by CT scan in adult Caucasian population. METHODS The area of the superior orbital fissure (SOF), the distance between the ocular skin and the substantia nigra and the distance between the ...

We present recent measurements of the orbital motion in the young binaries DF Tau and ZZ Tau, and the hierarchical triple Elias 12, that were obtained with the Fine Guidance Sensors on the HST and at the Keck Observatory using adaptive optics. Combining these observations with previous measurements from the literature, we compute preliminary orbital parameters for DF Tau and ZZ Tau. We find tha...

Objective: Fetal orbitofacial and orbital measurements may be helpful in early prenatal diagnosis of craniofacial malformation. Most of the earlier studies are ultrasound based and there are only a few studies based on fetal autopsies. Comprehensive analysis of various parameters can provide useful database for easy reference. Methods: In fifty normal fetuses of different gestational ages, the ...

We report the discovery of a wide pair (93 arcsec angular separation) of extremely cool (Teff < 4000 K) white dwarfs with a very large common proper motion (∼ 1.9 arcsec/yr). The objects were discovered in a high proper motion survey in the poorly investigated southern sky region with δ < −60 using SuperCOSMOS Sky Survey (SSS) data. Both objects, SSSPM J2231-7514 and SSSPM J2231-7515, show feat...

Fig. 1. (A) Patient with posttraumatic enophthalmos and hypoglobus of the right eye. (B) Upward gaze limitation was noted on preoperative day 1. A B or a nerve sheath injury whereas direct damage to the optic nerve during dissection and insertion of implant materials is also possible. We report a case of a patient with postoperative traumatic optic neuropathy due to indirect nerve damage after ...

The mouths of some bony and cartilaginous fishes are located in the anterior part of theirbodies, with a slight variation in sharks, which have theirs located in the abdominal part. Thisvariation is evolutionary over time. The force exerted by the jaws of sharks in order todismember their prey can be examined from two origins: .The determined force exerted by teethand muscles and the force as a...

Acute infection of the orbit may have several aetiologies such as conjunctivitis, trauma and stye, and it may also be idiopathic. However, the most common cause is acute sinusitis spreading directly from the paranasal sinuses which are intimately related to the orbit. The maxillary and ethmoidal sinus infections are the most common causes of orbital involvement (Mill & Kartush 1985). Only the t...