Could anyone provide his expertise on helping me to identify following ladybird species from Gabon?

More René Noël Poligui's questions See All

Could be estimate or simulated the electrical properties of thin films obtained from new organo-metallic compounds?

In the context of synthesized organo-metallic compounds, I am interested in the formation of thin-films over silicon wafers. Among another characteristics to be investigated, electric properties...

13 January 2021 7,575 2 View

ANSYS, how is far-field acoustic pressure calculated (from which underlying surface)?

In ANSYS, as in also e.g. COMSOL Multiphysics, you can calculate a far-field acoustic pressure outside the explicit FEM domain. However, whereas in COMSOL Multiphysics you define a certain closed...

04 January 2021 3,076 8 View

How to interpret the quality level of animal studies by using CAMARADES tool?

We have been working in a systematic review of animal studies and are performing risk of bias and quality assessment using SYRCLE and CAMARADES tools, respectively. Thereby, we would like to...

26 October 2020 7,171 1 View

How to sample maize leaves and transporting them for specific leaf area measurements?

Dear RG community, I would like to sample (cut-off) maize leaves in the field and transport them to the lab for SLA (specific leaf area) measurements. After a brief literature review, I could not...

18 August 2020 6,079 4 View

Is it possible to predict in vitro / in vivo correlations for extended-release tablets by using PK data from the literature?

We have been dealing with the investigation of the effects of splitting extended-release tablets in the in vitro dissolution profile of drugs. Thence we are wondering whether the differences...

29 February 2020 2,530 2 View

How to find and extract a homogenous (uniform) area of pixel values in an image?

Dear RG Community, I am currently working with thermal images of natural scenes. Throughout the scene I positioned large artificial targets that are painted black, grey and white. I would like...

12 November 2019 3,772 13 View

Is there a way to obtain apart from Energy values and bond lenght values bond angle values from an IRC on Gaussian in order to plot a 3D PES?

I have been performing several IRC calculation for multiple TS on g16 and I obtain bond lenght values and Energy values in order to plot a 2D PES. Can I also obtain bond angle values from that...

09 June 2018 9,892 3 View

Always OOB sampling in R caret package when using random forests?

Dear RG-community, I am curious how exactly the training process for a random forest model works when using the caret package in R. For the training process (trainControl()) we got the option to...

28 May 2018 6,622 4 View

How to use a geographical (GIS) time-dependent dataset as boundary condition in Comsol?

I want to apply a time-depended geographical dataset (format: "Lon,Lat,Time,Data") as boundary condition in a Comsol model. How can a achieve this for an instationary simulation? I know that...

21 May 2018 7,783 3 View

Hi, is there anyone who wants assistance with interpretation and/or classification of mutations to determine possible causality?

While doing research on genes possibly involved in a specific phenotype, you can run in to several difficulties for the interpretation and classification of mutations found, consequently making...

12 October 2017 8,599 2 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

Which fluorescent dye to use for measuring total ROS production?

Is DCFDA appropriate for measuring total ROS production, or can it only detect certain types of ROS? If I want to measure total ROS production, which dye should I use?

01 March 2021 9,447 3 View

How to accurately quantify chitin?

Hi all, I have been working on the quantification of chitin in insect samples and feed for a while but I can notice that the quantification methods (e.g. exposure to HCl, NaOH, and weighing sample...

01 March 2021 1,843 2 View

Genome-wide gene identification protocol ?

Is there any book chapter/book, webpage or research article available to understand genome-wide gene identification?

28 February 2021 8,095 1 View

How to improve and implement WBAN MAC and Radio modules under Castalia 3.2 ?

Hello researchers, Hello Castalia3.2 researchers I am a beginner with Castalia, I work on optimization of RFID systems used in wireless body networks. I simulated a WBAN with 10 nodes and one...

28 February 2021 400 1 View

I want to performe MALDI-TOF MS for bacterial identification, I would appreciate it if anyone can tell me the matrix solution preparation protocol ?

based on what I've studied on multiple papers, for peptide and protein identification Alpha-cyano-4-hydroxycinnamic acid (CHCA) is an appropriate matrix to use, I also know that the CHCA powder...

26 February 2021 6,799 3 View

Can anyone help with Schistosoma identification?

Can anyone identify what kind of Schistosome species this might be? Morphological features of cercariae and adults resemble Trichobilharzia, though I am fairly new to the field of parasitology...

25 February 2021 7,760 6 View

I have need of XRD graph analysis software for phase identification. Can you please provide links for software tools which can be downloaded?

i am trying to download x'pert high score software, but can't download it. please do suggest software for phase analysis

24 February 2021 5,687 4 View

Please help in identification of this insect?

This insect is minute in size around 1 mm and not clearly visible with naked eye.

22 February 2021 5,907 11 View

Are there SDMs that can take in percentage data?

Hi everyone, I am wondering if anyone knows of a species distribution model that can take in percentage data (i.e. presence data with prevalence values attached to them)? The dataset I have...

18 February 2021 7,312 3 View

René Noël Poligui

Could some body confirm if it's absolutely the same species, Scymnus interruptus?

Sachin S. Suroshe

First looks Nephus spp. and second one Scymnus spp. Its very difficult to arrive from photos. Pls. load good quality photographs along with the host which they are found feeding.

Dmitry Telnov

Nephus sp.

Scymnus sp.

Proper identification impossible on base of these low quality pictures

Marcelo Kun

Sorry unsuitable photos for id

Saludos

Marcelo

Raul Ferreira

With that photos, sorry, it is impossible.

Xiaosheng Chen

Dear Dr. Poligui,

I want to know how many segments of their antennae? The postcoxal lines on first abdominal ventrite is complete or incomplete?

Species of the tribe Scymnini are similar in external appearance, and the male genitalia must be used in order to confirm its identity.

Best wishes and happy new year.

Xiaosheng