There is no readily available information on the scientific attitude of someone named Angel Alcala. To understand someone's scientific attitude, we would need to know:

* Who is Angel Alcala? Is this a specific person in a particular field of science? Is there a published record of their work?

* What is meant by "scientific attitude"? This could refer to:

* Objectivity: Seeking truth regardless of personal biases.

* Skepticism: Questioning claims and demanding evidence.

* Open-mindedness: Being willing to change one's views in light of new evidence.

* Humility: Acknowledging the limits of one's knowledge.

* Creativity: Developing new ideas and approaches to research.

Please provide more context or information about Angel Alcala so I can better understand your question and provide a relevant answer.