Asking about the largest bird from Accipitridae and Falconidae

More Alexander Kurniawan Sariyanto Putera's questions See All

Why are reaction forces so high when I add vibration to cutting model?

Hi I am trying to model a cutting problem with a blade and comparing the results with and without ultrasonic vibration. From experimental results in our group, the use of ultrasound can...

13 June 2024 7,461 4 View

Best Tools for Wrist PPG Signal Analysis: Your Recommendations?

I'm conducting research on photoplethysmography (PPG) signals obtained from smartwatches worn on the wrist. The main goal is to analyze the PPG waveform and extract key fiducial points and...

13 June 2024 3,286 0 View

Why diagonal terms in Abaqus stiffness matrix are infinite?

I am running some simulations in Abaqus to extract the stiffness matrix of a FE model with geometric nonlinearity. I want to provide to Abaqus a set of nodal displacements (all the dofs in the...

28 May 2024 4,797 2 View

Is it possible to combine a time-series of tree-ring widths and and a time-series of diameter at breast height measurements into one TS?

Hello together! I have some time-series for tree-rings from dating from 1850-2016 and diameter at breast height (DBH) from 1996-2022 for the same plot, however the sampled trees for tree-rings...

16 May 2024 5,295 2 View

Is priori knowledge only instincts? Why?

I think so because The Random Slate Theorem

03 May 2024 3,082 7 View

How to fix driver conflicts of an ancient Skyscan 1072 micro CT with DT3157 video grabber ?

I am currently trying to get a Skyscan 1072 micro CT to work again. After the mainboard on the original PC died, we tried to set the machine up on a new computer. We managed to control the source,...

28 April 2024 381 0 View

Statistics: Is it worth using a t-test on pre and post survey data with 12 or less responses?

Is it worth using a paired t-test on pre and post survey data with 12 or less responses? Or should one rely more on the mean and standard deviation of the two data sets to evaluate the survey...

27 April 2024 8,703 8 View

What about religion, God, multi verse, etc.?

1)Religion(or at least spirituality) calms my mind, particularly, the built in belief of only one reality. God created the only reality. The afterlife is another dimension. We have free will but,...

25 April 2024 10,055 0 View

Handling BrainVision matlab files with ECG data in EEGLAB?

I have 217 preprocessed BrainVision matlab files (.mat) with ECG data in them. I've been having trouble creating a study for these. I know BioSig works for ECG data, but it doesn't seem to work...

21 April 2024 1,028 2 View

EEGLAB - how to import multiple .mat files from different folders all at once?

I have 25 folders for 25 participants, all with .mat files inside that are preprocessed. Most of them have the same amount of .mat files - a couple participants didn't finish the study, so they...

17 April 2024 1,897 3 View

Can you help me find a free ornithological journal that reviews articles quickly?

I need to publish an article in an ornithological journal.

20 July 2024 862 5 View

Why do crows gather in flocks?

They don’t always gather even when the weather changes.

17 February 2024 2,228 4 View

Please help me find free ornithological journals for publishing articles that describe regional bird studies?

31 January 2024 8,536 3 View

Please share the seminars or conferences in biology, zoology, ornithology that will be held in 2024?

Please share the seminars or conferences in biology, zoology, ornithology that will be held in 2024? Is it free to join them?

03 January 2024 6,010 6 View

Dissertation Research Questions?

I am a second year student at Bangor University looking for a dissertation question for my final year. I am mainly interested in working in the field, mainly basing my research on herpetology...

20 March 2023 3,522 2 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 2,360 3 View

Methodology for bird counts (census) in airport?

Hello. I am looking for a description of a methodology for bird counts (census), which is applicable to airport area and will allow me to collect the data about species diversity and abundance at...

11 January 2021 3,530 3 View

If anyone can suggest or review manuscript having keywords Riparian zone, River, Species richness, Species evenness, Ornithofauna?

Greetings I am Sachin Kumar, pursuing my Ph.D. in Ornithology, from PAU, Ludhiana. I am working on avian diversity along the River Beas. I had submitted a manuscript to a journal having keywords...

10 November 2020 7,481 6 View

Do you have an endnote style for Marine Ornithology?

Any seabird folks out there have an endnote style file for Marine Ornithology? Nothing available online, trying to avoid creating one from scratch - thanks! Perhaps we can make the file publicly...

01 November 2020 9,937 7 View

Methods for bird trend analysis?

What would be the best method for analysing trends in species abundance in a single area in Latin America over a 15 year period? Could TRIM be used for this purpose? I don't have data about...

27 October 2020 7,846 5 View

Dagoberto Port

See Harpia harpyja (Accipitridae).

Alexander Kurniawan Sariyanto Putera

oh... harpy eagle... It's the largest from America... It seem like Haliaeetus leucogaster because have a similiar about its wingspan...

Are you from America?

Yes, I'm from Brazil.

Nice to meet you... I'm Indonesian... Do you know Indonesia?

Are you birdwatcher?