Mantodea of Panguana (Insecta: Dictyoptera).

We present here the first illustrated checklist of the praying mantids (Mantodea) collected at the Panguana Field Station in Central Peru over the course of 50 years. The examination of over 430 specimens obtained mainly by light-trapping, but also other methods, revealed 44 species in 28 genera. Mantoida brunneriana, Mantoida cf.

Making it RAIN: Using Remotely Accessible Instruments in Nanotechnology to Enhance High School Science Courses.

The Remotely Accessible Instruments in Nanotechnology (RAIN) Network is a conglomerate of nineteen community colleges, four-year universities and high school sites that aims to enhance STEM learning by bringing advanced technologies to K-12 education. RAIN provides free remote access to instruments such as Scanning Electron, Atomic Force and Transmission Electron Microscopes, as well as Energy Dispersive and Infrared Spectroscopy. The following is a variety of experiments and an empirical formula lab that can be performed in a high school physical science or chemistry classroom that utilizes the RAIN Network.

A new genus and species of praying mantis (Insecta, Mantodea, Mantidae) from Indochina, with a key to Mantidae of South-East Asia.

Mekongomantis quinquespinosa gen. et sp. nov.

Ergotamine, flunarizine and sumatriptan do not change cerebral blood flow velocity in normal subjects and migraneurs.

Changes in the diameter of extracranial and intracranial arteries resulting in changes in cerebral blood flow have previously been assumed to be the most important pathophysiological factor in migraine. To test this hypothesis 20 normal subjects, and three groups of patients (n = 29) with migraine were investigated by means of transcranial Doppler sonography. Blood flow velocities in the middle cerebral (MCA) and in basilar (BA) arteries were measured.

Basement membrane of cervical adenocarcinoma: an immunoperoxidase study of laminin and type IV collagen.

The basement membrane components type IV collagen and laminin were examined immunohistochemically in 14 cases of adenocarcinoma of the cervix. The patterns of staining in adenocarcinoma in situ, invasive adenocarcinoma, and early invasive adenocarcinoma were compared to see whether characteristic patterns could be delineated. Adenocarcinoma in situ had a uniform intact basement membrane, whereas the basement membrane of invasive adenocarcinoma was fragmented and irregular.

Malignant mixed müllerian tumor of the ovary with prominent neuroectodermal differentiation (teratoid carcinosarcoma).

We report a unique carcinosarcoma of the ovary having an organoid growth pattern that resembled immature teratoma. The tumor contained both adenocarcinoma and squamous carcinoma (focally sebaceous) admixed with chondrosarcoma, rhabdomyosarcoma, and malignant neuroectodermal components. The neuroectodermal components were prominent, resembling ependymoblastoma, medulloepithelioma, ganglioneuroblastoma, glioblastoma multiforme, and pigmented neuroectodermal tumor.

An immunoperoxidase study of laminin and type IV collagen distribution in carcinoma of the cervix and vulva.

Basement membrane immunostaining was performed on pepsin-digested, paraffin-embedded blocks of 29 squamous cell carcinomas of the cervix (invasive and in situ) and 13 of the vulva, using polyclonal rabbit antibodies to human laminin and type IV collagen, both staining identically. Laminin with varying defectiveness surrounded invasive foci, whereas adjacent carcinoma in situ or normal epithelium had intact laminin. The amount of laminin usually reflected the degree of tumor differentiation.

Histologic prognosticators in stage I squamous cell carcinoma of the vulva.

Sixty-four cases of stage I vulvar squamous cell carcinoma were analyzed histologically to define a patient subset at minimum risk for recurrence or nodal metastases. Three patterns of invasion were predefined: carcinoma in situ with early stromal invasion (33%), pushing (8%), and infiltrative (59%). Infiltrative pattern and invasion deeper than 1.

Conjugated estrogen use and risk of endometrial cancer.

The relation between use of conjugated estrogens and the risk of uterine cancer was examined among 188 white women with newly diagnosed endometrial cancer and 428 controls hospitalized for nonmalignant conditions requiring surgery at the Boston Hospital for Women-Parkway Division, Boston, Massachusetts, in January 1970-June 1975. As in prior studies, the greatest increases in risk were associated with dosages of 0.625 mg or greater (relative risk (RR) = 3.

The role of postoperative local or regional irradiation in the treatment of stage I ovarian cancer.

Histological grade and cell type were major prognostic factors in a retrospective study of 63 patients with Stage I epithelial carcinoma of the ovary. Grading by architectural pattern seemed to predict relapse better than cytological grading. With serous, mucinous, and endometrioid cystadenocarcinomas, relapses increased with higher grades.

Distinguishing lymph node metastases from benign glandular inclusions in low-grade ovarian carcinoma.

In order to properly stage patients with ovarian carcinoma, we are routinely removing and microscopically examining sample aortic lymph nodes in these patients, since aortic lymph node metastases may affect long-term survival. Inasmuch as benign glandular inclusions can be found in pelvic and aortic lymph nodes, we have run into difficulty distinguishing such inclusions from genuine metastases in cases of low-grade or borderline serous ovarian carcinomas. Atypical epithelium in these tumors may closely resemble the lining of benign glandular lymph node inclusions.

Radiation therapy in stage II ovarian carcinoma: the influence of histologic grade.

Between September 1968, and December 1975, 40 patients with Stage II epithelial tumors of the ovary were treated at the Joint Center for Radiation Therapy. Thirty-six patients had undergone a total abdominal hysterectomy and bilateral salpingo-oophorectomy (BSOH) with attempted total removal of disease, and all patients received postoperative pelvic irradiation. The five-year actuarial relapse-free survival rate is 66% and the overall survival rate 70% for the entire group of patients.

Clear cell carcinoma of the uterine endocervix with an in situ component.

In the past all clear cell carcinomas of the female genital tract were thought to arise from mesonephric remnants. Recently increasing evidence has related their origin to müllerian rather than mesonephric epithelium. One of the main reasons that has been advanced to support their mesonephric origin has been their occurrence in the uterine cervix and vagina, sites of mesonephric remnants.

The cytologic diagnosis of breast aspirations.

A series of 1,792 breast cytology specimens were evaluated from the Boston Hospital for Women for the years 1970-1974. The majority (1,684) were needle aspiration smears, the remainder (108) were nipple secretion smears. The cytologic criteria for diagnosing breast specimens were presented.

Endometrial stromal sarcoma arising from vaginal endometriosis.

The present case reports the concurrence of endometriosis of the vaginal cuff with endometrial stromal sarcoma in association with high-dose estrogen. This case raises the question of whether chronic high-dose estrogen might be associated with malignant transformation of endometrial stroma. Although there is no definitive evidence of a causal relation between estrogen and endometrial stromal sarcoma, the possibility should be explored further.

Microscopic appearance of the human fallopian tube following a reanastomosis procedure.

Microscopic evaluation of a human fallopian tube following end-to-end anastomosis over a polyethylene stent was performed 10 days after the initial surgical procedure. The stent was removed on the 3rd postoperative day. Examination of the excised tube revealed a patent lumen without any evidence of mucosal compromise.