Lawrence Perepolkin

11 Questions 26 Answers 0 Followers

Questions related from Lawrence Perepolkin

Which morphological characters are sufficient and necessary to differentiate a nematode -- an Allodorylaimus from an Aporcelaimellus?

Under a microscope, both Allodorylaimus and Aporcelaimellus appear similar. Aporcelaimellus are plump nematodes. I can see different spears and lips.

20 June 2022 5,342 1 View

I am looking for labs or researchers that can take on a project to identify a nematode to genus from a set of micrographs?

This is more of a job than fun -- tedious. I have been taking micrographs of nematodes extracted from various biogeoclimatic zones in southern British Columbia Canada. I would like to have...

04 June 2022 4,592 0 View

Has anyone translated the nematode identification keys found in Tom Bongers' "De Nematoden van Nederland" from Dutch to English?

Has anyone translated nematode identification keys found in Tom Bongers' "De Nematoden van Nederland" from Dutch to English?

20 May 2022 8,182 0 View

Is there a protocol or technique given two nematodes, visually differentate them and claim they are two different species?

Culturing nematodes and observing if they mate would be one. Are there other techniques? Would different reproductive systems imply different species?

16 May 2022 2,071 2 View

Is NEMISYS, an expert-system for nematode identification, in use and being enhanced?

Diederich, J. & Milton, J., 1989. NEMISYS, an expert system for nematode identification. In: R. Fortuner (Ed.), Nematode identification and expert system technology, New York, Plenum Publishing...

14 December 2021 3,575 1 View

What are some of the current protocols and primers used in the PCR identification of nematodes?

Can members recommend protocols and primers for PCR identification of randomly selected nematodes? A general first sweep method for identification to family or genus. Can someone suggest some...

08 October 2021 8,518 4 View

Is there are lab manual or text book that someone can recommend for measuring nematode morphometric parameters (De Man indices)?

I am looking for a detailed manual that one can follow as a self-teaching guide for measuring nematode morphometric parameters. Similar to architectural blueprints use in constructing buildings.

07 September 2021 9,644 6 View

Is there a public database of morphometric parameters (De Man’s indices) for nematodes?

To express the morphometric characteristics of the nematode better, De Man first suggested a system (1876). There have been since additions, modifications, and amendments made by Cobb (1914),...

30 August 2021 3,265 0 View

Where can one find datasets of nematode images?

I am thinking that Open Computer Vision can be used to facilitate the identification of nematodes. The application would need to be trained with known images of nematodes.

23 January 2019 7,805 3 View

Open Data Online Database for Nematode Micrographs, VCE Videos and Image Metadata?

Do there exist open data online sites where one can submit nematode micrographs, VCE videos, and image metadata? A content management system like Drupal could work. The level of effort and...

01 January 1970 153 1 View

Given set of morphological characteristics how close, can a computer guess the identity of a nematode? Most likely with 97.4% accuracy read on...

With computer vision, a computer can with the help of an operator, perform accurate dimensional analysis of a nematode. The operator can also assist in the computer in identifying esophagus counts...

01 January 1970 1,188 10 View